118 Application Development jobs in Dublin

**Software Engineer - Dublin or Letterkenny**
Optum is a global organisation that delivers care, aided by technology to help millions of people live healthier lives. The work you do with our team will directly improve health outcomes by connecting people with the care, pharmacy benefits, data and resources they need to feel their best. Here, you will find a culture guided by diversity and inclusion, talented peers, comprehensive benefits and career development opportunities. Come make an impact on the communities we serve as you help us advance health equity on a global scale. Join us to start **Caring. Connecting. Growing together.**
**About the Role:**
In healthcare, evolution doesn't just happen. It takes innovation, imagination, and a passion for solving problems in new and better ways. And innovation is taking place at a lightning-fast pace every day at Optum.
As the fastest growing part of the UnitedHealth Group family of businesses, we're expanding our team in Ireland and creating excellent opportunities for those who want greater purpose and more impact in their work. We'll provide the investment, support, and resources to advance your career. You'll provide the talent, ambition, and drive.
This role is based within Optum Insight as part of Payment Integrity Data Intelligence. Optum is the technology and services division of UnitedHealth Group, the leading international health insurer. The roles of the Analytics Engineering team include analysis, design, coding, engineering, testing, debugging, standards, methods, tools analysis, documentation, research and development, maintenance, new development, operations and delivery. With every role in the company, each position has a requirement for building quality into every output. This also includes evaluating new tools, new techniques, strategies; Automation of common tasks; build of common utilities to drive organizational efficiency with a passion around technology and solutions and influence of thought and leadership on future capabilities and opportunities to apply technology in new and innovative ways.
We are now looking for an additional Full Stack Engineer to enhance our Software and Data Engineering capacity to develop the analytics, analytic applications and analytic platforms in support of our business insights.
As a key member of the Analytics Engineering Team, you will be part of UnitedHealth Group's mission of helping people live healthier lives. You will work with other Software Engineers and Data Scientists along with subject matter experts to deliver code of high quality for our applications, products and services.
_Careers with Optum offer flexible work arrangements and individuals who live and work in the Republic of Ireland will have the opportunity to split their monthly work hours between our Dublin or Letterkenny and telecommuting from a home-based office in a hybrid work model._
**Primary Responsibilities:**
+ Develop and maintain server-side and client-side applications using React/NextJS, TypeScript, and Python frameworks such as Django, Flask, or FastAPI ensuring code quality, efficiency, and adherence to best practices
+ Ensure seamless integration of front-end and back-end components to deliver fully functional systems
+ Collaborate with UI/UX designers to create user-friendly interfaces and ensure a seamless user experience
+ Design and implement RESTful APIs and microservices architecture to facilitate communication between different components of the system
+ Develop data access layers and connect to relational and or NoSQL databases (e.g., MySQL, MongoDB) for data storage retrieval, and manipulation
+ Maintain and support CICD processes using Github Actions to test and build software artifacts.
+ Assist with research, evaluate, and deploy new tools, frameworks and patterns to build a sustainable Analytic platform
+ Identify gaps and opportunities for improvement of existing solutions
+ Be innovative in solution design and development to meet the needs of the business
+ Analyze and define customer requirements
+ Collaborate on prototypes, proof-of-concepts & design and code reviews
+ Write technical documentation and participate in production support.
+ Keep skills up to date through ongoing self-directed training
You will be rewarded and recognised for your performance in an environment that will challenge you and give you clear direction on what it takes to succeed in your role, as well as providing development for other roles you may be interested in.
**Required Qualifications:**
+ Proven industry experience as a Full Stack Developer
+ Proficient in React and its core principles, including hooks, state management, and component lifecycle
+ Knowledge in server-side languages/frameworks such as Java (Spring Framework, Spring Boot)) or Python (FastAPI, Django, Flask)
+ Proficiency in HTML5, CSS3, TypeScript/JavaScript
+ Have previously used front-end build tools and package managers
+ Experience with RESTful API design and implementation
+ Experience with microservices architecture
+ Background using relational databases (e.g., MySQL or PostgreSQL)
**Preferred Qualifications:**
+ Undergraduate degree or equivalent experience
+ Experience in developing applications on at least one major cloud platform (Azure preferred)
+ Experience in messaging and streaming technologies (e.g. Kafka).
+ Healthcare experience
+ Experience in a big data environment building data processing pipelines
+ Experience attending and participating in scrum agile ceremonies
+ Experience working with healthcare data
**Please note you must currently be eligible to work and remain indefinitely without any restrictions in the country to which you are making an application. Proof will be required to support your application.**
All telecommuters will be required to adhere to the UnitedHealth Group's Telecommuter Policy.
At UnitedHealth Group, our mission is to help people live healthier lives and make the health system work better for everyone. We believe everyone-of every race, gender, sexuality, age, location and income-deserves the opportunity to live their healthiest life. Today, however, there are still far too many barriers to good health which are disproportionately experienced by people of color, historically marginalised groups and those with lower incomes. We are committed to mitigating our impact on the environment and enabling and delivering equitable care that addresses health disparities and improves health outcomes - an enterprise priority reflected in our mission.
Diversity creates a healthier atmosphere: Optum is an Equal Employment Opportunity employer and all qualified applicants will receive consideration for employment without regard to gender, civil status, family status, sexual orientation, disability, religion, age, race, and membership of the Traveller community, or any other characteristic protected by law. Optum is a drug-free workplace. © 2025 Optum Services (Ireland) Limited. All rights reserved.
#RPO

Looking for experienced Software Developers with exposure in the networking or Telco space to join this well-established communications company. You will be focusing on developing code within a specialised networking team within the telco sector. Working in collaboration with other development teams to ensure that all the code and work runs smoothly together for the customer base. This role will see you working in a close team with some very experienced engineers at the head with a good possibility for career growth as the company grows. Requirements: 4+ years of working in a networking development environment Good C++ experience Experience working with networking technologies such as TCP/IP, Shell scripting and Multithreading Previous experience working in tight-knit teams Experience with C code is also advantageous Benefits: Hybrid Working Healthcare Pension Bonus L&D opportunities Get in touch with Daniel Brown at Reperio Human Capital to find out more Reperio Human Capital acts as an Employment Agency and an Employment Business. Skills: C++ Modern C++ Multithreading GUI Dublin Benefits: Work From Home

**Introduction**
Apptio, an IBM Company, is seeking a Senior Software Development Engineer to join our growing team building innovative, AI-driven solutions across the FinOps and Technology Business Management (TBM) product suite. In this role, you will work closely with data scientists to design, develop, and scale the engineering infrastructure required to bring machine learning and generative AI capabilities into production across our SaaS platforms.
You will play a key role in shaping the future of intelligent product features-enabling smarter automation, deeper analytics, and better business outcomes for our enterprise customers.
**Your role and responsibilities**
* Collaborate with data scientists to productionize AI/ML models, including orchestration, scaling, monitoring, and API integration
* Design and build high-quality, maintainable software systems that deliver AI/ML-powered features within Apptio's product suite
* Develop secure and scalable microservices, data pipelines, and back-end components in a cloud-native environment
* Work closely with product managers and UX designers to translate business needs into technical solutions
* Contribute to architectural decisions and code reviews while mentoring junior engineers
* Drive performance, scalability, and reliability best practices across AI-integrated features
* Stay up-to-date with emerging trends in software engineering, cloud technologies, and MLOps
**Required technical and professional expertise**
* Demonstrated experience in software development, ideally with experience delivering SaaS or data-driven products
* Proficiency in one or more modern languages such as Java, Python, Go, or TypeScript
* Experience building and deploying RESTful APIs, working with containerized environments (e.g., Docker, Kubernetes)
* Solid understanding of cloud platforms (AWS, Azure, or GCP) and CI/CD pipelines
* Demonstrated experience collaborating with data science or ML teams to operationalize models
* Strong knowledge of distributed systems, performance optimization, and fault-tolerant design
* Excellent communication skills and a collaborative, team-first mindset
**Preferred technical and professional experience**
* Experience with MLOps tools and practices (e.g., MLflow, SageMaker, Airflow, KubeFlow)
* Familiarity with FinOps, IT financial management, or Apptio products (ApptioOne, Cloudability, Targetprocess)
* Exposure to generative AI or LLM-based solutions
* Knowledge of observability practices and tools for AI/ML-powered services
IBM is committed to creating a diverse environment and is proud to be an equal-opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, gender, gender identity or expression, sexual orientation, national origin, caste, genetics, pregnancy, disability, neurodivergence, age, veteran status, or other characteristics. IBM is also committed to compliance with all fair employment practices regarding citizenship and immigration status.

**Introduction**
At IBM Cloudability, we deliver a best-in-class FinOps platform that helps customers enable their IT, finance, and DevOps teams to work together to optimize cloud resources for speed, cost, and quality. We are seeking a highly skilled and experienced Senior Software Development Engineer to join our dynamic and growing team. The ideal candidate will be a seasoned software developer with a passion for technology, problem-solving, and driving software development processes. You will get to lead technical initiatives, and mentor junior engineers while delivering high-quality, scalable, and maintainable software solutions.
**Your role and responsibilities**
Develop cloud-native services to address both new and ongoing business challenges and meet customer needs.
* Own end-to-end feature development, from concept through design to production, collaborating with product managers and engineers to deliver scalable, high-quality solutions.
* Drive the adoption of best practices for software development, including testing, code reviews, and continuous integration, to ensure the delivery of high-quality, reliable software.
* Identify and address performance bottlenecks, ensuring that systems scale efficiently and perform well under varying loads.
* Mentor and provide technical guidance to junior engineers.
**Required technical and professional expertise**
* Bachelor's degree in computer science, a related field, or relevant work experience.
* 5+ years of professional software development experience in designing and building enterprise-level applications
* Extensive professional knowledge, experience, and understanding of at least one modern programming language, such Java, Scala, and Go.
* Extensive experience with software engineering principles, including data structures, algorithms, and design patterns.
* Hands-on experience with cloud technologies (AWS, Azure, GCP) and containerization (Docker, Kubernetes).
* Excellent communication skills, both written and verbal.
**Preferred technical and professional experience**
* Master's degree in computer science or related field.
* Experience in modern software concepts such as Infrastructure as Code (e.g., Terraform)
* Experienced with modern API design and implementations, preferably in Java or Golang.
* Experienced in Cloud infrastructure's cost management or FinOps.
* Experience using monitoring tools like Splunk, Datadog, Prometheus, Grafana
* Exceptional customer focus, ownership, and drive.
IBM is committed to creating a diverse environment and is proud to be an equal-opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, gender, gender identity or expression, sexual orientation, national origin, caste, genetics, pregnancy, disability, neurodivergence, age, veteran status, or other characteristics. IBM is also committed to compliance with all fair employment practices regarding citizenship and immigration status.

Description
Are you looking to build and maintain software that helps people? The Security Operations Software (SecOpsSW) team develops and maintains softwares in support of employee and site security and safety around the world. Our users are who you call when the fire alarm is pulled or your delivery van got rear-ended, and the software you'll work on is used to support Amazon employees during and after incidents small and large.
If you're the type of person who's curiosity can't be satiated; if you're able to quickly grok the intersection between need, possibilities and data and explain it simply to others, please apply. We're looking for an engineer with expertise in designing, developing, and maintaining software. This role will be expected to help drive the software development process as well as mentor fellow team members.
Understanding the needs of our internal customers and continually aligning your work with your objectives will be critical. Working in ambiguity, anticipating bottlenecks and escalations, and setting realistic (yet appropriately progressive) expectations are all crucial to the success of our products and customers.
We develop on AWS. We develop mostly using React.js, Node.js, and java with serverless architectures leveraging RDS and DynamoDB.
Key job responsibilities
- Refine ambiguous requirements and define system architecture.
- Own technical documentation and break down work for the team to implement individual components.
- Be responsible for technical problem solving and meeting product objectives.
- Developing and driving adoption of engineering best practices
- Write exemplary code in terms of code organization, clarity, simplicity, error handling, and documentation.
- Effectively communicate with your team ( and other teams) via design reviews, code review, knowledge transfer sessions.
- Mentor other developers.
- Own and maintain the systems that you build.
- Contribute to planning, design, implementation, testing, operations, and process improvement as member of a Scrum team.
- Maintain balance between team's delivery speed and building for the future.
About the team
The SecOpsSw team builds technologies to protect Amazon employees, assets & information, reduce negative customer experience due to operational losses and fraud, and maximize savings in security operations.
Basic Qualifications
- 3+ years of non-internship professional software development experience
- 2+ years of non-internship design or architecture (design patterns, reliability and scaling) of new and existing systems experience
- Experience programming with at least one software programming language
Preferred Qualifications
- 3+ years of full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations experience
- Bachelor's degree in computer science or equivalent
Amazon is an equal opportunities employer. We believe passionately that employing a diverse workforce is central to our success. We make recruiting decisions based on your experience and skills. We value your passion to discover, invent, simplify and build. Protecting your privacy and the security of your data is a longstanding top priority for Amazon. Please consult our Privacy Notice ( ) to know more about how we collect, use and transfer the personal data of our candidates.
Amazon is an equal opportunity employer and does not discriminate on the basis of protected veteran status, disability, or other legally protected status.
Our inclusive culture empowers Amazonians to deliver the best results for our customers. If you have a disability and need a workplace accommodation or adjustment during the application and hiring process, including support for the interview or onboarding process, please visit for more information. If the country/region you're applying in isn't listed, please contact your Recruiting Partner.

Description
Do you want to work on a product that can do the following?
- Access petabytes of data in single-digit milliseconds
- Replicate tables across continents
- Stream terabytes of data updates per hour continuously
- Back up hundreds of terabytes of data in seconds
- Encrypt petabytes of data with no performance degradation
Amazon DynamoDB is a NoSQL database service that does all this and more. DynamoDB is a key-value and document database that delivers single-digit-millisecond performance at any scale. DynamoDB can store petabytes of customer data and handle peaks of more than 20 million requests per second.
As a fast growing service at the core of the AWS Cloud, our business and engineering decisions have widespread impact across AWS, Amazon, and beyond. Many of the world's fastest growing businesses, such as Lyft, Airbnb, and Redfin, as well as enterprises, such as Samsung, Toyota, and Capital One, depend on the scale and performance of DynamoDB to support their mission-critical workloads.
DynamoDB is one of the largest distributed database systems in the world, and we continue to believe it is Day 1 for the DynamoDB business. We are constantly improving and adding new capabilities to DynamoDB, and we are looking for a deeply technical, team-first software development engineer to push DynamoDB even further.
DynamoDB engineers are constantly challenged to think of unique and innovative solutions. The quality bar is high. As an engineer here, you will work on the hardest engineering problems in distributed systems at a massive scale and on multiple dimensions. You will exercise your intellectual curiosity, work with motivated teams of sharp individuals, and get insightful guidance from senior and principal engineers.
This is a hands-on position in which you will own everything from end to end: requirements gathering, designs, design reviews, implementations, code reviews, incremental feature launches, operations, mentoring, and the driving of continuous improvement.
AWS DynamoDB is a part of AWS Utility Computing (UC) which provides product innovations - from foundational services such as Amazon's Simple Storage Service (S3) and Amazon Elastic Compute Cloud (EC2), to consistently released new product innovations that continue to set AWS's services and features apart in the industry. As a member of the UC organization, you'll support the development and management of Compute, Database, Storage, Internet of Things (Iot), Platform, and Productivity Apps services in AWS, including support for customers who require specialized security solutions for their cloud services.
About the team
Diverse Experiences
AWS values diverse experiences. Even if you do not meet all of the qualifications and skills listed in the job description, we encourage candidates to apply. If your career is just starting, hasn't followed a traditional path, or includes alternative experiences, don't let it stop you from applying.
Why AWS?
Amazon Web Services (AWS) is the world's most comprehensive and broadly adopted cloud platform. We pioneered cloud computing and never stopped innovating - that's why customers from the most successful startups to Global 500 companies trust our robust suite of products and services to power their businesses.
Inclusive Team Culture
AWS values curiosity and connection. Our employee-led and company-sponsored affinity groups promote inclusion and empower our people to take pride in what makes us unique. Our inclusion events foster stronger, more collaborative teams. Our continual innovation is fueled by the bold ideas, fresh perspectives, and passionate voices our teams bring to everything we do.
Mentorship & Career Growth
We're continuously raising our performance bar as we strive to become Earth's Best Employer. That's why you'll find endless knowledge-sharing, mentorship and other career-advancing resources here to help you develop into a better-rounded professional.
Work/Life Balance
We value work-life harmony. Achieving success at work should never come at the expense of sacrifices at home, which is why flexible work hours and arrangements are part of our culture. When we feel supported in the workplace and at home, there's nothing we can't achieve in the cloud.
Basic Qualifications
- Experience (non-internship) in professional software development
- Experience designing or architecting (design patterns, reliability and scaling) of new and existing systems
- Experience programming with at least one software programming language
Preferred Qualifications
- Bachelor's degree in computer science or equivalent
- Experience with full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations
Amazon is an equal opportunities employer. We believe passionately that employing a diverse workforce is central to our success. We make recruiting decisions based on your experience and skills. We value your passion to discover, invent, simplify and build. Protecting your privacy and the security of your data is a longstanding top priority for Amazon. Please consult our Privacy Notice ( ) to know more about how we collect, use and transfer the personal data of our candidates.
Amazon is an equal opportunity employer and does not discriminate on the basis of protected veteran status, disability, or other legally protected status.
Our inclusive culture empowers Amazonians to deliver the best results for our customers. If you have a disability and need a workplace accommodation or adjustment during the application and hiring process, including support for the interview or onboarding process, please visit for more information. If the country/region you're applying in isn't listed, please contact your Recruiting Partner.

Our business
**Services** includes Treasury & Trade Solutions (TTS) and Securities Services. TTS provides an integrated suite of innovative and tailored cash management and trade finance services to multinational corporations, financial institutions and public sector organizations. Securities Services provides cross-border support for clients with extensive on-the-ground local market expertise, innovative post-trade technologies, customized data solutions and a wide range of securities services solutions that can be tailored to meet clients' needs.
**Issuer Services** is a part of Services that supports the issuance and administrative needs of global institutional clients through two key business segments, namely Agency & Trust and Depositary Receipt Services. We are a leading provider of transactional services with a unique blend of experience, global reach and superior services.
Job Summary
This is a Sr. QA automation position for the Issuer application team to perform tests on innovative solutions that not only meet functionality requirements but also meet performance, scalability and reliability requirements while adhering to development and delivery schedules, QA principles and quality goals. The ideal candidate should be very hands-on in technical and have very good communication skill to collaborate with global product manager, business users, global tech leads, QA team.
Job Responsibilities
+ This is a hands-on automation QA specialist position in a fast growing global business and development team
+ This role will mainly focus on automation test deliverables
+ Create and implement automation test strategies aligned with project requirements
+ Build and maintainreusable automation frameworks to streamline test development and execution
+ Interpret and clarifymanual test cases, translate them into automation test cases and execute automation regression test cases to support releases
+ Conduct code review for automated test cases
+ Identify and document software defects and issues, and work closely with development teams to troubleshoot and resolve them
+ Provide guidance and coaching to junior QA team members on automation best practices and methodologies
+ Stay updated to emerging automation tools and technologies, proposing improvements to existing automation frameworks and processes
Job Opportunities
+ Gain and grow the domain knowledge in Issuer Services world
+ Build the experience of working in global development teams
Additional
+ Evening calls and collaboration with global teams
+ Successful reference and background check
Job Qualifications
+ Prior experience in software industry - this is an analyst/officer level position
+ Prior experience in automation testing, investment banking software testing experience is preferred
+ Have a Bachelor/Master degree in Computer Science, Computer Engineering, Software Engineering, EE, Mathematics or related majors
+ Certification in software testing, such as ISTQB, is preferred
+ With Financial knowledge or background is a plus
Job Skills
+ Good understanding of Software development lifecycle(SDLC), agile principles and methodologies
+ Familiarity with SQL and database management systems
+ Proficient in one programming language, Python or Java is preferred
+ Proficiencyin implementing automation frameworks like Selenium, Appium, or similar tools
+ Good knowledge in TDD and BDD. Experience in BDD automation framework is preferred
+ Experience with bug tracking systems like Jira, Bugzilla
+ Strong communication skills and collaboration skills to work effectively with cross-functional teams
+ Strong analytical/problem solving skills, with a keen attention to detail.
+ Ability to work independently, multi-task, take ownership and drive strategy
This job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required.
By joining Citi Dublin, you will not only be part of a business casual workplace with a hybrid working model (up to 2 days working at home per week), but also receive a competitive base salary (which is annually reviewed) and enjoy a whole host of additional benefits that support you (and your family) to be well, live well and save well. Discover more here. ( these benefits Citi is committed to ensuring our workplace is where everyone feels comfortable coming to work as their whole self every day. We want the best talent around the world to be energised to join us, motivated to stay, and empowered to thrive.
**Sounds like Citi has everything you need? Then apply to discover the true extent of your capabilities.**
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**Job Family Group:**
Technology
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**Job Family:**
Applications Development
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**Time Type:**
Full time
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**Most Relevant Skills**
Please see the requirements listed above.
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**Other Relevant Skills**
For complementary skills, please see above and/or contact the recruiter.
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_Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law._
_If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review_ _Accessibility at Citi ( _._
_View Citi's_ _EEO Policy Statement ( _and the_ _Know Your Rights ( _poster._
Citi is an equal opportunity and affirmative action employer.
Minority/Female/Veteran/Individuals with Disabilities/Sexual Orientation/Gender Identity.

Description
Amazon DynamoDB is a key-value and document database that delivers single-digit-millisecond performance at any scale. As a fast-growing service at the core of the AWS Cloud, our business and engineering decisions have widespread impact across AWS, Amazon, and beyond. Many of the world's fastest growing businesses such as Lyft, Airbnb, and Redfin, as well as enterprises such as Samsung, Toyota, and Capital One depend on the scale and performance of DynamoDB to support their workloads. On the DynamoDB team, you will see the impact your work has on the world.
DynamoDB is one of the largest distributed database systems in the world, and we continue to believe it is Day 1 for the DynamoDB business. We are constantly improving and adding new capabilities to DynamoDB, and we are looking for a deeply technical, team-first senior software development engineer to push DynamoDB even further.
DynamoDB engineers say DynamoDB is a technically challenging space that requires unique and innovative solutions. As a senior SDE on the DynamoDB team, you will solve the hardest engineering challenges in distributed systems at a massive scale. The problems you face will exercise your intellectual curiosity to its maximum. You will help lead an amazing team of intelligent individuals to deliver impactful results for customers. And you will interact with other senior SDEs and principal engineers on a daily basis, who will help you take your design and architectural skills to the next level.
Our systems have to be highly available, scalable, and efficient. We can't get away with two out of three. As a senior engineer, you will design systems to adhere to these tenets and mentor junior engineers to do the same. You will tackle hard distributed-systems problems as well as difficult resource-optimization problems.
You also will lead the delivery of new systems with customer-facing features and new internal functionality. You will play a big role in defining our new offerings in a way that takes advantage of your deep knowledge of industry trends and engineering tradeoffs. You also will be a thoughtful steward of existing systems, appropriately challenging assumptions and rearchitecting systems when necessary to allow us to scale for growth.
This is a hands-on position in which you will be asked to do everything from building rock-solid services to formulating strategy, evangelizing technology, and mentoring other engineers. You need to not only be a top software developer with a track record of delivering on commitments, but also excel at communicating and leading with customers in mind.
If you want to test your limits and tackle technical challenges you won't see anywhere else, join our team!
By joining the DynamoDB team, you'll enjoy a competitive salary, great benefits, a creative and comfortable work environment, and the opportunity to be part of a fast-paced and growing technology company.
AWS DynamoDB is part of AWS Utility Computing (UC) which provides product innovations - from foundational services such as Amazon's Simple Storage Service (S3) and Amazon Elastic Compute Cloud (EC2), to consistently released new product innovations that continue to set AWS's services and features apart in the industry. As a member of the UC organization, you'll support the development and management of Compute, Database, Storage, Internet of Things (Iot), Platform, and Productivity Apps services in AWS. Within AWS UC, Amazon Dedicated Cloud (ADC) roles engage with AWS customers who require specialized security solutions for their cloud services.
Key job responsibilities
* Identifying technical requirements based on business goals and product direction, and translating those requirements into detailed architecture and design.
* Executing multi-engineer, cross-team projects, and mentoring others on project management and prioritization.
* Delivering quality projects and features on time and on budget.
* Leading design reviews for the engineering team. Setting and driving technical best practices for the team.
* Participating in the full lifecycle of day-to-day development activities, including prioritization, task breakdowns, writing design documents, design and code reviews, implementation, deployment, and operations.
* Performing data analysis to identify opportunities to optimize our services.
* Maintaining current technical knowledge to support rapidly changing technology, and working with management and the development team to bring in new technologies when appropriate.
A day in the life
- Deep dive into low level programming problems.
- Look for opportunities for microsecond improvements in the application code.
- Code with programming languages such as Rust, Java and Python.
- Deep dive into metrics looking for opportunities to improve performance for our customer.
About the team
Diverse Experiences
AWS values diverse experiences. Even if you do not meet all of the qualifications and skills listed in the job description, we encourage candidates to apply. If your career is just starting, hasn't followed a traditional path, or includes alternative experiences, don't let it stop you from applying.
Why AWS?
Amazon Web Services (AWS) is the world's most comprehensive and broadly adopted cloud platform. We pioneered cloud computing and never stopped innovating - that's why customers from the most successful startups to Global 500 companies trust our robust suite of products and services to power their businesses.
Inclusive Team Culture
AWS values curiosity and connection. Our employee-led and company-sponsored affinity groups promote inclusion and empower our people to take pride in what makes us unique. Our inclusion events foster stronger, more collaborative teams. Our continual innovation is fueled by the bold ideas, fresh perspectives, and passionate voices our teams bring to everything we do.
Mentorship & Career Growth
We're continuously raising our performance bar as we strive to become Earth's Best Employer. That's why you'll find endless knowledge-sharing, mentorship and other career-advancing resources here to help you develop into a better-rounded professional.
Work/Life Balance
We value work-life harmony. Achieving success at work should never come at the expense of sacrifices at home, which is why flexible work hours and arrangements are part of our culture. When we feel supported in the workplace and at home, there's nothing we can't achieve in the cloud.
Basic Qualifications
- Experience as a mentor, tech lead or leading an engineering team
- Experience leading the architecture and design (architecture, design patterns, reliability and scaling) of new and current systems
- Experience in professional, non-internship software development
- Experience programming with at least one modern language such as Java, C++, or C# including object-oriented design
- Experience in development in the last 3 years
Preferred Qualifications
- Bachelor's degree in computer science or equivalent
- Experience with full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations
Amazon is an equal opportunities employer. We believe passionately that employing a diverse workforce is central to our success. We make recruiting decisions based on your experience and skills. We value your passion to discover, invent, simplify and build. Protecting your privacy and the security of your data is a longstanding top priority for Amazon. Please consult our Privacy Notice ( ) to know more about how we collect, use and transfer the personal data of our candidates.
Amazon is an equal opportunity employer and does not discriminate on the basis of protected veteran status, disability, or other legally protected status.
Our inclusive culture empowers Amazonians to deliver the best results for our customers. If you have a disability and need a workplace accommodation or adjustment during the application and hiring process, including support for the interview or onboarding process, please visit for more information. If the country/region you're applying in isn't listed, please contact your Recruiting Partner.

Description
Would you like to be an Engineer that builds the Cloud, rather than an Engineer that just uses it? At AWS, our Engineers look after the behind-the-scenes software and tools that make the world's largest cloud computing infrastructure possible.
We have an amazing opportunity for you to join a world-class network team in a dynamic environment that has the feel of a start-up. In this role as a Software Development Engineer, you will build in house services and tooling to solve challenges within the networking space.
Your internal customers are your network engineer colleagues, and through close collaboration, support and exchange of ideas, you will define, build and support the tools they need to manage the AWS network. You will build new software solutions and services as well as maintain the suite of existing services which control the AWS network. By championing automated tooling and software approaches, you will reduce manual operations in maintaining both the network and the software services.
If you are exceptionally motivated and passionate about the work you do then we welcome you to join us, working in an fast paced environment with the most advanced tools, processes and talented people in the industry to make the Cloud a reality.
What you'll be working on:
* Collaborate with our internal customers on designs/solutions and bring them from concept to production
* Develop and support our software services and tooling which supports the management of the AWS network
* Continuous process improvement and implementing engineering best practices
* Supporting our software through a shared on-call rota
Top reasons to join our team:
* Solve interesting software problems in a high growth environment and share those solutions across a global organisation
* Be a pioneer in the world's most comprehensive and broadly adopted cloud platform
* Collaborate with and learn from the best networking engineers in the world
Key job responsibilities
Our Software Development Engineers are the architects behind the world's largest cloud infrastructure, crafting sophisticated tools and services that power our vast cloud infrastructure. Working closely with network engineering teams, these innovators transform complex networking challenges into automated solutions, building and maintaining the critical software that manages AWS's global infrastructure. Through creative problem-solving, they create robust tools that enable network engineers to operate at unprecedented scale while reducing manual operations. This role sits at the exciting intersection of cloud computing and network automation, where you'll help pioneer the future of cloud infrastructure alongside world-class networking experts.
About the team
The Systems Development team manages all of the software services and platforms that builds, operates, monitors and assures the AWS network within an isolated region.
Basic Qualifications
- Background as a professional software engineer, working as a hands on coder, collaboratively building complex, large scale systems alongside other engineers
- Experience designing solutions and architecting code from scratch
- A history of applying continuous improvement and implementing software engineering best practices across the full software development lifecycle
Preferred Qualifications
- A degree in computer science, engineering or other STEM subjects
- Experience with python or java preferred but other languages are also beneficial
- Practical understanding of network fundamentals (DNS, DHCP, TCP/IP, routing, switching, HTTP)
- Knowledge of systems engineering fundamentals (host networking, storage, linux operating systems)
- Experience designing, developing or operating cloud services running on AWS or another cloud platform
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