30 Platform Development jobs in Ireland
Application Development Lead

Posted 1 day ago
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Job Description
By Joining Citi, you will become part of a global organisation whose mission is to serve as a trusted partner to our clients by responsibly providing financial services that enable growth and economic progress.
**Team/Role Overview**
The Applications Development Lead is a part of the Issuer Services Technology global management team. This role leads an experienced engineering team to implement new or revised application systems in coordination with the Issuer Services Technology team.
The Issuer Services business has aggressive business growth goals for the next 3-5 years and has made considerable additional investments in Technology, including quadrupling the size of the technology organization during the past few years. This role is critical to ensure our project oversight and delivery of solutions to the Operations and the Front Office businesses are best in class and scalable to continue supporting growth within the business and our internal technology organization.
**What you'll do**
An ideal candidate has a passion for leadership with a strong capability in leading and directing our development teams. S/he is a senior hands-on technical lead with proven track record leading engineering teams and managing projects with acute awareness and accountability for financial and risk related objectives. S/he has strong technical and architectural skills and proactively contributes to the new technical vision and engineering best practices.
+ You should be hands on with strong analytical and technical ability with 5+ years of experience. An additional 3-4 years involved with complex medium to large projects in a dynamic financial environment is desirable.
+ Willing to learn new techniques, particularly, low code platforms like Appian
+ There is a requirement to lead day to day delivery work and clearly set out a strategic architectural vision and identify project/program delivery risks and work on risk mitigation.
+ You should have good analytical skills to filter, prioritize and validate potentially complex material from multiple sources and employes skills and knowledge of the business to develop creative solutions to meet client and business needs.
+ You will be required to work on complex and variable issues with significant potential impact, weighing various alternatives and stabilizing potentially conflicting needs.
+ Consider budget implications and make appropriate strategic decisions to reduce Citi's risk exposure.
**What we'll need from you:**
+ Experience of Java, JavaScript/Angular
+ Experience in Appian is a plus
+ Provide strategic influence and exercise control over resources, budget management and planning while monitoring delivery and end results
+ Manage staff and vendors/contractors to accomplish established goals and conduct personnel duties for team (e.g., performance evaluations, career guidance/mentoring, hiring and disciplinary actions)
+ End to end staff and delivery management for several of the most critical application platforms utilized by Issuer Services
+ Drive the strategic recombination of platforms and applications to align with Digital First and future state objectives
+ Confirmed experience of crafting and delivering successful complex solutions in an enterprise production environment.
+ Experience in working on multiple technologies and medium to complex systems, well versed with design standards and framework.
+ Superb communication, great verbal and written skills and ability to learn fast.
+ Ability to work in a demanding and fast paced environment. Hard-working and highly motivated individual.
+ Self-starter who is passionate for learning about new tools and technologies; Ability to work both independently, with other team members, and across teams.
+ Experience with Agile and all aspects of the SDLC, and DevOps processes
+ Experience with Spring / ORM framework, and database
+ Bachelor's degree/University degree or equivalent experience, preferably in a Computer Science or related field.
**What we can offer you**
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.
Alongside 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.**
#LI-SM9
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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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_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.
Application Development Maintenance, Assistant Vice President
Posted 11 days ago
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Job Description
Web Development Intern
Posted 27 days ago
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Job Description
We are looking for an outstanding Web Developer to be responsible for the coding, innovative design and layout of our website. Web developer responsibilities include building and modifying our website from concept all the way to completion, integrating the web pages to site layout and function.
Responsibilities:
Write well designed, testable, efficient code by using best software development practices
Create website layout/user interface by using standard HTML/CSS practices
Integrate data from various back-end services.
Gather and refine specifications and requirements based on technical needs
Responsible for maintaining, expanding, and scaling our site
Stay plugged into emerging technologies/industry trends and apply them into operations and activities
Cooperate with other web designers to match visual design intent
Requirements
Essential:
Candidates must be comfortable working in a fast-paced environment to meet tight deadlines.
Conceptualise and execute original ideas that bring simplicity and user-friendliness.
Excellent team working and communication skills.
Create and maintain software documentation.
Detail-oriented with strong organisational skills and a methodical approach to all tasks.
Ability to work on multiple projects at the same time and complete tasks in a timely manner.
Desirable:
Experience with WordPress.
Experience in writing well designed, testable, efficient code by using best software development practice and standard HTML/CSS practices considered advantageous.
If you find this opportunity suitable for you, send us your CV today. All applications will be considered.
Lead Software Development Engineer - API Platform
Posted 25 days ago
Job Viewed
Job Description
_Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we're helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential._
**Title and Summary**
Lead Software Development Engineer - API Platform
Overview
Mastercard Developers ( is the primary API platform for Mastercard partners to access a diverse range of payment, data, loyalty, and security APIs. The team is responsible for delivering an experience that ensures developers can quickly find the right API, assess its technical capabilities and integrate it into new and innovative solutions. Mastercard Developers is looking for a versatile and customer-obsessed engineer to join our team. You will play a key role in designing and developing next-generation products and services in Mastercard for a global audience.
- Would you enjoy collaborating with your team to design new features and solutions in an evolving Enterprise environment?
- Do you have a strong background in developing and delivering high volume web services?
- Are you passionate about delivering high quality, high performing and highly extensible software?
- Are you as excited about the value of what you design and build for your customers as you are by the journey to deliver it?
- Do you want to be part of one of the most exciting global initiatives in Mastercard right now?
Role
- Lead planning, design and implementation of technical solutions for global customers (internal and external)
- Continually ideate, scope, develop, deliver, test and iterate features for the constantly evolving and growing Mastercard Developers.
- Ensure appropriate levels of automation are adopted (build, deploy, configure, validate, monitor).
- Liaise with other global technology, data, operations teams to execute.
- Act as subject matter expert for Mastercard Developers API Platform and services to support customer integrations on occasion
All About You
- 8+ years of backend development experience.
- Very strong Java and object-oriented design and development skills.
- Knowledge of Kotlin is a plus as it is one of our primary language for backend services.
- Strong fundamentals of Spring Boot, microservices and SQL based database (Oracle and PostgreSQL).
- Proven track record in API based products
- You care about the technical architecture and design - ensuring that the solution is flexibly designed and performs efficiently.
- Experienced working in an Agile environment with a global team that makes frequent production releases.
- Background in Dev/Ops a distinct advantage.
- Background in automation a distinct advantage.
- Experience in designing and delivering APIs and security models an advantage
- You strive to create highly intuitive and responsive products.
**Corporate Security Responsibility**
All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must:
+ Abide by Mastercard's security policies and practices;
+ Ensure the confidentiality and integrity of the information being accessed;
+ Report any suspected information security violation or breach, and
+ Complete all periodic mandatory security trainings in accordance with Mastercard's guidelines.
Senior Platform Engineer

Posted 1 day ago
Job Viewed
Job Description
We're Fiserv, a global leader in Fintech and payments, and we move money and information in a way that moves the world. We connect financial institutions, corporations, merchants, and consumers to one another millions of times a day - quickly, reliably, and securely. Any time you swipe your credit card, pay through a mobile app, or withdraw money from the bank, we're involved. If you want to make an impact on a global scale, come make a difference at Fiserv.
**Job Title**
Senior Platform Engineer
**What does a successful Senior Platform Engineer do?**
You will be responsible for designing, building, and ensuring production-grade support for **Kubernetes** and **Cloud** **platform** at a global scale. Also, you will help application teams to onboard, monitor, and run the applications in a fast & secure manner while making sure the right technology is used for the specific application. This includes using the latest technology and the ability to greatly contribute and shape the solution with your input. The target of our initiative is to enable dev teams to onboard and work with the platform in a self-service way.
**What you will do:**
+ Build & maintain our platform that serves as self-service for development teams
+ Help application teams to be onboarded and provide technical guidance to use the maximum of our platform on-prem or in the cloud
+ Cooperate with other departments within the organization (security, middleware team, Linux team, .)
+ Implement middleware application specific requirements as needed, ensuring that integration across components in the provided environment is functional.
+ Stay up to date on technology trends, direction and innovation related to business process and technology areas of focus for the position
+ Participate on change management processes
+ Be part of on-call duties to support the platform - "you build it, you run it".
**What you will need to have:**
+ 5+ years of work experience in SRE/DevOps/Platform Engineering area co-working with development teams
+ Linux knowledge, basic networking, and certificates knowledge
+ CI/CD, GitOps, Git/Gitlab, Docker and Kubernetes
+ IaC and scripting skills
+ senior-level hands-on experience with AWS cloud
+ detailed understanding of the SDLC process
+ Proficiency in English, good communication skills, and a positive attitude
+ Ability to understand complex architectural designs and be able to search for alternative solutions
Thank you for considering employment with Fiserv. Please:
+ Apply using your legal name
+ Complete the step-by-step profile and attach your resume (either is acceptable, both are preferable).
**Our commitment to Diversity and Inclusion:**
Fiserv is proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, gender, gender identity, sexual orientation, age, disability, protected veteran status, or any other category protected by law.
**Note to agencies:**
Fiserv does not accept resume submissions from agencies outside of existing agreements. Please do not send resumes to Fiserv associates. Fiserv is not responsible for any fees associated with unsolicited resume submissions.
**Warning about fake job posts:**
Please be aware of fraudulent job postings that are not affiliated with Fiserv. Fraudulent job postings may be used by cyber criminals to target your personally identifiable information and/or to steal money or financial information. Any communications from a Fiserv representative will come from a legitimate Fiserv email address.
Senior Platform Engineer
Posted 5 days ago
Job Viewed
Job Description
_Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we're helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential._
**Title and Summary**
Senior Platform Engineer
Who is Mastercard?
Mastercard is a global technology company in the payments industry. Our mission is to connect and power an inclusive, digital economy that benefits everyone, everywhere by making transactions safe, simple, smart, and accessible. Using secure data and networks, partnerships and passion, our innovations and solutions help individuals, financial institutions, governments, and businesses realize their greatest potential.
Our decency quotient, or DQ, drives our culture and everything we do inside and outside of our company. With connections across more than 210 countries and territories, we are building a sustainable world that unlocks priceless possibilities for all.
Overview
The Web Platform Operations team is responsible for the Middleware Operations support of mission critical middleware infrastructure for all Web-based applications and services at MasterCard. Our team of Engineers are engaged in the Operations escalations to ensure, along with other vital teams, the stability of the web infrastructure meets MasterCard's requirements for speed to market, security, sizing, performance, and resiliency.
- Do you enjoy supporting mission critical middleware infrastructure?
- Do you have a high degree of initiative and self-motivation and demonstrate the ability to drive results?
- Are you passionate about delivering quality support?
Role
- Operations Support of middleware components such as Tomcat, F5 (BIG-IP), Apache, Java, etc.
- SME support for middleware infrastructure such as Tomcat, Websphere, F5 (BIG-IP), Apache. Responsible for testing and introducing new version releases to Mastercard environments
- Deployment of new F5 AS3 vservers using ansible
- Collaborate with Development & Application Support teams to discuss, analyze, or resolve application and usability issues and suggest engaging the Technology Engineer for any new requirements which are not defined in standard architecture design document (TAD).
- Implement complex security integration utilizing MSSL, mutual authentication, hardware certificates, software certificates, dynamic endpoints, and other security models.
- Participate in the Application's environment shakedown testing and troubleshooting efforts as required
- Document Operations and configuration procedures to allow maintenance and repetition as well as maintaining this documentation.
- On-call rotational support
All About You
- Knowledge of Tomcat, Apache, Java, Websphere, DNS
- Intermediate knowledge of load balancers, F5 AS3 and web application firewalls
- Intermediate knowledge of network, DNS and operating system principles
- Exposure to Pivotal Cloud Foundry is a plus
- Experience with automation using Chef, Ansible and Jenkins
- Strong communication skills
- Detail oriented
Corporate Security Responsibility
Every person working for, or on behalf of, Mastercard is responsible for information security. All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and therefore, it is expected that the successful candidate for this position must:
- Abide by Mastercard's security policies and practices;
- Ensure the confidentiality and integrity of the information being accessed;
- Report any suspected information security violation or breach, and
- Complete all periodic mandatory security trainings in accordance with Mastercard's guidelines.
**Corporate Security Responsibility**
All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must:
+ Abide by Mastercard's security policies and practices;
+ Ensure the confidentiality and integrity of the information being accessed;
+ Report any suspected information security violation or breach, and
+ Complete all periodic mandatory security trainings in accordance with Mastercard's guidelines.
Senior Platform Engineer - FinOps

Posted 6 days ago
Job Viewed
Job Description
_Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we're helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential._
**Title and Summary**
Senior Platform Engineer - FinOps
Who is Mastercard?
Mastercard is a global technology company in the payments industry. Our mission is to connect and power an inclusive, digital economy that benefits everyone, everywhere by making transactions safe, simple, smart, and accessible. Using secure data and networks, partnerships and passion, our innovations and solutions help individuals, financial institutions, governments, and businesses realize their greatest potential.
Our decency quotient, or DQ, drives our culture and everything we do inside and outside of our company. With connections across more than 210 countries and territories, we are building a sustainable world that unlocks priceless possibilities for all.
Overview
The Open Banking platform engineering team is looking for a senior platform engineer that has significant FinOps experience to help advance our platform, and help drive cost optimisation, efficiency and data-driven decision making across our cloud infrastructure. The ideal candidate will have strong technical expertise, financial acumen, and a strong ability to present data in clear, actionable ways. This role is critical to ensuring our platforms are scalable, cost-effective, and aligned with business objectives.
- Design, implement, and maintain cost-efficient cloud infrastructure across multiple clouds.
- Architect and optimize scalable systems and applications with a focus on performance and reliability.
- Traverse and analyze large datasets to identify trends, inefficiencies, and opportunities for optimization.
- Develop and maintain intuitive dashboards and visualizations to present insights on cloud costs, resource utilization, and performance metrics.
- Collaborate with stakeholders to ensure financial and technical goals align, providing actionable insights to support decision-making.
- Automate infrastructure provisioning, monitoring, and reporting using tools like Terraform, Kubernetes, and cloud-native solutions.
- Build tools and processes for efficient cost forecasting, monitoring, and accountability.
- Advocate for FinOps best practices across the organization, educating teams on cost implications of design and operational decisions.
Requirements
- Strong programming skills in Golang and Python, with hands-on experience building and maintaining complex microservices applications.
- 5+ years of experience in cloud architecture and infrastructure management, with a deep focus on cloud cost optimization.
- Expertise in cloud platforms (AWS, Azure, GCP), with advanced knowledge in cloud cost management and FinOps practices.
- Strong ability to analyze large datasets, identify cost inefficiencies, and present data through dashboards and visualizations.
- Proven experience in cloud cost management, FinOps practices, and scalable architecture design.
- Proficiency in traversing and analyzing large datasets, with expertise in tools like SQL, Python, or other data processing, query languages.
- Expertise in developing dashboards and visualizations using tools like AWS Quicksight, Tableau, Power BI, or cloud-native solutions (e.g Kubecost/Opencost)
- Strong knowledge of cloud platforms (AWS, Azure, GCP), infrastructure-as-code (Terraform, Kubernetes), and automation frameworks.
- Experience in system and application design with a focus on efficiency and reliability.
- A broad technical background with experience across development and infrastructure tools.
- Excellent communication skills, capable of conveying complex technical and financial concepts clearly.
- Passion for driving system efficiency, cost-effectiveness, and performance improvements.
- Strong financial modeling and budgeting skills.
- Certification in AWS, Azure, or GCP is a plus.
Corporate Security Responsibility
Every person working for, or on behalf of, Mastercard is responsible for information security. All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and therefore, it is expected that the successful candidate for this position must:
- Abide by Mastercard's security policies and practices;
- Ensure the confidentiality and integrity of the information being accessed;
- Report any suspected information security violation or breach, and
- Complete all periodic mandatory security trainings in accordance with Mastercard's guidelines.
NOTE: Candidates go through a thorough screening and interview process. There is no need to include all preferred skills in the job description.
**Corporate Security Responsibility**
All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must:
+ Abide by Mastercard's security policies and practices;
+ Ensure the confidentiality and integrity of the information being accessed;
+ Report any suspected information security violation or breach, and
+ Complete all periodic mandatory security trainings in accordance with Mastercard's guidelines.
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Senior DevOps Engineer / Platform Engineer
Posted 2 days ago
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Platform Automation Engineer - Dublin
Posted 2 days ago
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Senior Data Platform SIEM Engineer
Posted 11 days ago
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Job Description
At SAP, we keep it simple: you bring your best to us, and we'll bring out the best in you. We're builders touching over 20 industries and 80% of global commerce, and we need your unique talents to help shape what's next. The work is challenging - but it matters. You'll find a place where you can be yourself, prioritize your wellbeing, and truly belong. What's in it for you? Constant learning, skill growth, great benefits, and a team that wants you to grow and succeed.
**The Role:**
As a Senior Data Platform SIEM Engineer, you'll be instrumental in the advancement, maintenance, and configuration of SAP's global logging and monitoring ecosystem. Your expertise in Splunk and other SIEM platforms will be essential for sustaining the infrastructure that supports our global Detection Platform. Collaborating with key stakeholders, you will gather detailed requirements, ensure smooth implementations, and act as a point of escalation for system outages. Additionally, you'll mentor Operations staff and advocate for data hygiene and quality. Your efforts in building new capabilities, optimizing systems, and meticulously documenting processes will ensure sustainability for future team members
**About Us:**
The Data Platform Engineering Team is responsible for developing the SIEM platform used across partner organizations for Incident Response, Cyber Threat Intelligence, and Vulnerability Management within SAP's lines-of-business. Our platform is the central investigative tool for the Cyber Defense & Design team, enhancing the ability to analyze suspicious activities comprehensively. Furthermore, it supports IT Operations workloads, facilitating proactive monitoring and compliance
**Key Qualifications**
+ Experience: Minimum of 5-7 years in data platform engineering, SIEM management, or a similar field.
+ Technical Expertise: Proficiency with data tools like Splunk, Cribl, and ELK; skill in handling standard data formats (JSON, CSV, syslog) and advanced regex/transforms/grok rules.
+ Source Control and CI/CD: Strong understanding of GitHub VCS fundamentals and integration with CI/CD tools (e.g., Jenkins, GitHub Actions).
+ Network and Linux Skills: Robust network design and troubleshooting capabilities, including DNS. Solid Linux administration skills, including the use of bash, GNU CLI tools, and subsystems like systemd; ability to articulate Linux concepts like filesystems and kernel tuning.
+ AWS Management: Experience with AWS services, particularly managing EC2, Route53, Lambda, VPC, and S3
**Desirable Skills**
+ Authentication Systems: Familiarity with enterprise authentication/authorization systems and protocols such as SAML, LDAP, and OIDC.
+ Configuration Management: Experience with large-scale configuration management tools like Ansible, Chef, Puppet, or alternatives with API-based management.
+ Certifications: Splunk Certified Admin, AWS Solution Architect, or similar relevant technical certifications.
+ We are seeking a seasoned engineer with a proven track record and the certifications and skills that align with the evolving needs of our data platform infrastructur
**Bring out your best**
SAP innovations help more than four hundred thousand customers worldwide work together more efficiently and use business insight more effectively. Originally known for leadership in enterprise resource planning (ERP) software, SAP has evolved to become a market leader in end-to-end business application software and related services for database, analytics, intelligent technologies, and experience management. As a cloud company with two hundred million users and more than one hundred thousand employees worldwide, we are purpose-driven and future-focused, with a highly collaborative team ethic and commitment to personal development. Whether connecting global industries, people, or platforms, we help ensure every challenge gets the solution it deserves. At SAP, you can bring out your best.
**We win with inclusion**
SAP's culture of inclusion, focus on health and well-being, and flexible working models help ensure that everyone - regardless of background - feels included and can run at their best. At SAP, we believe we are made stronger by the unique capabilities and qualities that each person brings to our company, and we invest in our employees to inspire confidence and help everyone realize their full potential. We ultimately believe in unleashing all talent and creating a better world.
SAP is committed to the values of Equal Employment Opportunity and provides accessibility accommodations to applicants with physical and/or mental disabilities. If you are interested in applying for employment with SAP and are in need of accommodation or special assistance to navigate our website or to complete your application, please send an e-mail with your request to Recruiting Operations Team:
For SAP employees: Only permanent roles are eligible for the SAP Employee Referral Program ( , according to the eligibility rules set in the SAP Referral Policy. Specific conditions may apply for roles in Vocational Training.
Qualified applicants will receive consideration for employment without regard to their age, race, religion, national origin, ethnicity, gender (including pregnancy, childbirth, et al), sexual orientation, gender identity or expression, protected veteran status, or disability, in compliance with applicable federal, state, and local legal requirements.
Successful candidates might be required to undergo a background verification with an external vendor.
**AI Usage in the Recruitment Process**
For information on the responsible use of AI in our recruitment process, please refer to our Guidelines for Ethical Usage of AI in the Recruiting Process ( .
Please note that any violation of these guidelines may result in disqualification from the hiring process.
Requisition ID: 433885 | Work Area: Information Technology | Expected Travel: 0 - 10% | Career Status: Professional | Employment Type: Regular Full Time | Additional Locations: #LI-Hybrid