26 Senior Software Developer jobs in Ireland

**Introduction**
QRadar SOAR, is designed to help security teams respond to cyberthreats with confidence, automate with intelligence and collaborate with consistency. It guides teams in resolving incidents by codifying established incident response processes into dynamic playbooks. The open and agnostic platform helps accelerate and orchestrate their response by automating actions with intelligence and integrating with other security tools. teams can have best-in-class response capabilities. We are growing rapidly and are looking for a highly motivated, dynamic, talented individual to join our Software Development team.
**Your role and responsibilities**
As a member of the IBM Security SOAR development team, you will be working on back-end services and end-to-end system design. Members of this team tend to have a high degree of fluency in one or more languages (Java and/or C++), database technologies (relational, document, distributed), and a foundational knowledge of cloud technologies such as Kubernetes and OpenShift Container Platform
**Required technical and professional expertise**
You must have a minimum of 3 years experience in the following:
* Professional experience programming in Java.
* Good understanding of Object-Oriented Design and programming concepts.
* Professional experience in web application programming and REST architecture.
* Strong communication skills.
**Preferred technical and professional experience**
* Experience with Tomcat, Jersey, Hibernate, JTA, Camel, and ActiveMQ.
* Experience in database schema design, performance, tuning, and scalability.
* Implementing distributed applications in container environment (Docker/Kubernetes).
* Experience with agile software development, continuous integration and continuous
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**
A career in IBM Software means you'll be part of a team that transforms our customer's challenges into solutions.
Seeking new possibilities and always staying curious, we are a team dedicated to creating the world's leading AI-powered, cloud-native software solutions for our customers. Our renowned legacy creates endless global opportunities for our IBMers, so the door is always open for those who want to grow their career.
IBM's product and technology landscape includes Research, Software, and Infrastructure. Entering this domain positions you at the heart of IBM, where growth and innovation thrive.
**Your role and responsibilities**
As a Software Developer you will be designing better ways to identify potential weak spots, inefficiencies, and issues within software systems. This position will work closely with development teams and other test engineers in the implementation and delivery of software products that meet rigorous quality standards, budgets, and timelines.
You will play a key role by delivering quality functions for development teams within test driven framework. Your scope will include Test Plan Development, Test Case Execution, Automation Testing, Data Creation, API Validation and incorporating test automation in the CI/CD pipelines.
Your primary responsibilities include:
*
JAVA Proficiency: Possess knowledge with JAVA programming language.
*
API Testing and Automation Familiarity: Hands-on experience in API testing and API automation.
*
Agile Development Methodologies: Familiarity with agile development methodologies.
**Required technical and professional expertise**
*
Collaborative Development: Work closely with development teams to identify potential weak spots, inefficiencies, and issues within software systems, fostering a collaborative approach to software quality.
*
Test Planning and Execution: Develop comprehensive test plans and execute test cases to ensure software products meet quality standards and requirements.
*
Automation Integration: Implement and integrate test automation into Continuous Integration/Continuous Delivery (CI/CD) pipelines to streamline testing processes and enhance efficiency.
*
Excellent Problem-Solving Skills: Demonstrated experience in problem-solving, with the ability to tackle complex issues and find effective solutions.
**Preferred technical and professional experience**
*
Automation Frameworks: Proficiency with API testing and API automation in other Automation frameworks, such as Playwright etc.
*
Cloud/Container skills: Familiarity with cloud and container technologies, including Docker, Kubernetes, Red Hat OpenShift, etc.
*
Programming Languages: Java, JavaScript, Golang, Jenkins, Linux, and Unix environments.
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**
A career in IBM Software means you'll be part of a team that transforms our customer's challenges into solutions.
Seeking new possibilities and always staying curious, we are a team dedicated to creating the world's leading AI-powered, cloud-native software solutions for our customers. Our renowned legacy creates endless global opportunities for our IBMers, so the door is always open for those who want to grow their career.
IBM's product and technology landscape includes Research, Software, and Infrastructure. Entering this domain positions you at the heart of IBM, where growth and innovation thrive.
**Your role and responsibilities**
Join Our Team as a Software Developer at IBM!
You'll have the opportunity to make a difference in the way 3scale API Management is developed. You'll gain a complete understanding of various technologies, including Docker, OpenShift by Red Hat, Python, and more. You will make sure our solutions fulfill the highest possible enterprise quality, performance, usability, and supportability criteria.
**Required technical and professional expertise**
*
Software Testing and Development
Working experience with software testing, including familiarity with testing methodologies and techniques. Designing and implementing tests to ensure software products meet quality standards and requirements.
*
Software Development Expertise:
A strong background in software development, demonstrating expertise in a programming language such as Python, Go, or Java, along with scripting skills such as unix shell programming
*
Automation Integration
Experience with Continuous Integration/Continuous Delivery (CI/CD) pipelines such as Jenkins to streamline testing processes and enhance efficiency.
*
Excellent Problem-Solving Skills:
Demonstrated experience in problem-solving, with the ability to tackle complex issues and find effective solutions.
*
Collaborative Team Player:
Ability to work seamlessly as part of a global team, contributing to collective goals and fostering a collaborative work environment.s to ensure the development of robust, scalable, and user-friendly solutions.
**Preferred technical and professional experience**
*
API Management Systems Experience:
Familiarity with API management systems, their configuration and operation.
*
Cloud/Container skills:
Familiarity with cloud and container technologies, including Docker, Kubernetes, Red Hat OpenShift, etc.
*
Collaborative Software Development:
Familiarity with distributed software development using Git, or a similar system.
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**
A career in IBM Software means you'll be part of a team that transforms our customer's challenges into solutions.
Seeking new possibilities and always staying curious, we are a team dedicated to creating the world's leading AI-powered, cloud-native software solutions for our customers. Our renowned legacy creates endless global opportunities for our IBMers, so the door is always open for those who want to grow their career.
We are seeking a skilled back-end developer to join our IBM Software team. As part of our team, you will be responsible for developing and maintaining high-quality software products, working with a variety of technologies and programming languages.
IBM's product and technology landscape includes Research, Software, and Infrastructure. Entering this domain positions you at the heart of IBM, where growth and innovation thrive.
**Your role and responsibilities**
We are seeking an experienced Backend Engineer with strong expertise in Golang to join our 3scale team. In this role, you will be instrumental in maintaining our existing backend systems, actively troubleshooting complex issues, and making significant contributions to our architecture to ensure scalability and reliability. A key part of your work will involve developing NGINX plugins and Kubernetes operators using Golang, as well as contributing to our existing Golang-based components. You will apply your skills in large-scale systems within a cloud-native environment.
**Required technical and professional expertise**
*
Software Development Expertise:
Maintain and enhance existing backend codebases, with a focus on Golang applications.
*
Kubernetes Operators Knowledge:
Develop and maintain Kubernetes Operators in Golang for automation and management of our services.
*
NGINX or Envoy Knowledge:
Design and implement NGINX plugins using Golang to extend functionality and performance.
*
Self-Starter Mindest:
A self-starter with a proactive mindset, able to initiate and drive projects independently.
*
Excellent Problem-Solving Skills:
Demonstrated excellence in problem-solving, with the ability to tackle complex issues and find effective solutions.
*
Collaborative Team Player:
Ability to work seamlessly as part of a team, contributing to collective goals and fostering a collaborative work environment.
**Preferred technical and professional experience**
*
Familiarity with Istio WebAssembly (Wasm) modules.
*
Demonstrated ability to write NGINX plugins.
*
Performance testing and debugging
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.

**Job Description**
Design, devPrincipal Software Engineer (Performance & Efficiency - OCI Core Engineering)
Location:
UK / Ireland / Europe - Remote-friendly (subject to Oracle HR policy)
Note: Dublin and Czech Republic are considered key OCI hubs in Europe.
Organization:
OCI Energization / Technical Strategy Team
Level:
IC4 or IC5 preferred
(IC3 candidates with exceptional skills will also be considered)
About the Team:
This team is part of a specialized technical strategy group within Oracle Cloud Infrastructure (OCI) focused on efficiency, performance improvements, and architectural excellence across core OCI services.
Rather than building specific customer-facing services, this team partners with other internal service teams (e.g., Spot, Storage, Multi-cloud) to analyze, improve, and optimize the performance, throughput, latency, and cost-efficiency of those services.
The mission includes:
* Enhancing service performance
* Reducing resource consumption
* Identifying architectural bottlenecks
* Improving infrastructure and code-level efficiency
* Supporting OCI's next-generation infrastructure initiatives
Key Responsibilities:
* Work with OCI service teams to identify and resolve performance bottlenecks.
* Perform in-depth system analysis across software and infrastructure layers.
* Lead design discussions to improve service performance and architecture.
* Deliver efficiency improvements that translate to tangible cost savings.
* Build internal tooling or frameworks for benchmarking, profiling, and optimization.
* Write clean, efficient, and well-tested code in Java and/or systems-level languages.
* Produce detailed reports and recommendations for service teams and leadership.
* Contribute to OCI's technical strategy on cloud infrastructure efficiency.
Minimum Qualifications:
* 10+ years of hands-on engineering experience in high-scale environments.
* Strong proficiency in Java (core development, tuning, debugging).
* Deep understanding of system-level performance (latency, throughput, memory).
* Experience working in Linux environments (as a developer, not sysadmin).
* Familiarity with containerized environments and OCI/Kubernetes-based deployments.
* Demonstrated experience with profiling tools, benchmarking, and performance optimization.
* Experience with distributed systems or cloud service architecture.
* Ability to work independently and collaborate with remote global teams.
Preferred Qualifications:
* Background in performance engineering roles (e.g., bottleneck analysis, profiling).
* Experience analyzing infrastructure cost vs. compute performance trade-offs.
* Familiarity with OCI or other major cloud providers (AWS, GCP, Azure).
* Understanding of Linux kernel behavior and low-level debugging.
* Systems programming experience in C/C++ is a plus.
* Track record of delivering efficiency gains in large-scale environments.elop, troubleshoot and debug software programs for databases, applications, tools, networks etc.
**Responsibilities**
As a member of the software engineering division, you will take an active role in the definition and evolution of standard practices and procedures. You will be responsible for defining and developing software for tasks associated with the developing, designing and debugging of software applications or operating systems.
Career Level - IC4
**About Us**
As a world leader in cloud solutions, Oracle uses tomorrow's technology to tackle today's challenges. We've partnered with industry-leaders in almost every sector-and continue to thrive after 40+ years of change by operating with integrity.
We know that true innovation starts when everyone is empowered to contribute. That's why we're committed to growing an inclusive workforce that promotes opportunities for all.
Oracle careers open the door to global opportunities where work-life balance flourishes. We offer competitive benefits based on parity and consistency and support our people with flexible medical, life insurance, and retirement options. We also encourage employees to give back to their communities through our volunteer programs.
We're committed to including people with disabilities at all stages of the employment process. If you require accessibility assistance or accommodation for a disability at any point, let us know by emailing or by calling in the United States.
Oracle is an Equal Employment Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, disability and protected veterans' status, or any other characteristic protected by law. Oracle will consider for employment qualified applicants with arrest and conviction records pursuant to applicable law.

**Introduction**
We are seeking a skilled Senior Software Developer to join our IBM MQ Software as a Service development team. As part of our team, you will be responsible for building, testing and maintaining a SaaS service on a variety of hyperscalers.  The ideal candidate will have experience in cloud technologies such as container orchestration, continuous integration, and deployment. You will be responsible for delivering new features into the service, maintaining and enhancing our continuous integration and deployment pipelines, and ensuring the smooth operation of our services. The role requires a good level of personal organisation and the ability to work well within a distributed global team in a fast paced and exciting environment.
The MQ SaaS team employs agile development practices with all team members actively engaged in the planning, development, testing and usability related tasks owned and delivered by their 'Delivery Team'. Preferred candidates will be enthusiastic, highly motivated team players who have cloud software skills/experience and demonstrate a genuine desire and aptitude to perform the multi-disciplinary activities inherent in a DevOps role. Knowledge of continuous delivery techniques is important to ensure the stability of a live service. Successful candidate will be proficient in Agile Delivery practices and passionate about delivering on team objectives and sprint goals. The work performed will have a high degree of technical content, is diverse and challenging yet always rewarding. If you love technology, a technical challenge, being part of a successful team and want to make a difference to how global business meets the demands of moving data around the world quickly, securely and reliably then MQ SaaS is for you.
**Your role and responsibilities**
Successful candidates will have strong coding skills and a desire to learn full stack development, including but not limited to Feature Development, Testing and Customer Support. Candidates should also be comfortable working as part of a global team and possess good verbal & written communication skills.
A successful individual for this role should possess:
* A strong understanding of cloud technologies including networking and security
* A strong technical background in using development tools such as Git, VS Code, make etc.
* Strong analytical and problem solving expertise, with the ability to investigate issues and apply fixes throughout the development lifecycle.
* Experience in applying Cloud Engineering practices to enable Continuous Delivery.
* Ability to take ownership of tasks, proactively driving them to their completion.
**Please note - This position requires working onsite a minimum of 3 days per week at our Dublin location
**Required technical and professional expertise**
* Development skill in Golang/Python to deliver robust, scalable solutions.
* Technical expertise in building, deploying and running applications in a Cloud environment such as AWS, IBM cloud, Azure.
* Strong proficiency with Kubernetes/OpenShift and container orchestration.
* Familiarity with Docker, Istio, and other container technologies.
* Management of version control and collaboration using Git and GitHub.
* Strong scripting experience, e.g. bash.
**Preferred technical and professional experience**
* 6+ years experience in Software Development
* Proficient in agile development methodologies and tools.
* Experience in utilizing Helm charts for packaging and deploying containerized applications.
* Knowledge of terraform to provision and manage infrastructure.
* Experience leading teams in an agile environment.
* Experience in owning and driving business outcomes.
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.

We are looking for a Senior Software Developer to join our software development team. They must possess the necessary technical, organizational, and communication skills to participate on complex projects. They will be expected to contribute across the entire development cycle: analysis, proof-of-concept, design, implementation, testing, initial pilot/production launches, and production support. They will be responsible for meeting project timelines and communicating project scope, resource, and timeline changes to stakeholders in a timely manner. The responsibilities will also include knowledge sharing with peers, assist junior team members, and help facilitate improvements and efficiencies within the overall development organization.
**What You'll Do:**
+ Design, implement and maintain Java-based applications that can be high-volume and low-latency.
+ Contribute to all stages of software development lifecycle.
+ Analyse user requirements to define business objectives.
+ Envisioning system features and functionality.
+ Develop and test software.
+ Identify and resolve any technical issues arising.
+ Create detailed design documentation.
+ Propose changes to current Java infrastructure.
+ Develop technical designs for application development.
+ Write well designed, testable code.
+ Conducting software analysis, programming, testing, and debugging.
+ Support continuous improvement, investigating alternatives and technologies, and presenting for architectural review.
**What We're Looking For:**
+ Bachelor's Degree preferably in Computer Science, Information Technology, Computer Engineering, or related IT discipline; or equivalent experience.
+ 7 years of experience with proven hands-on Software Development experience with agile methodology
+ Proven working experience in Java development
+ Hands on experience in designing and developing applications using J2EE platforms
+ Object Oriented analysis and design using common design patterns.
+ Profound insight of Java and JEE internals (Classloading, Memory Management, Transaction management etc)
+ Excellent knowledge of Relational Databases, SQL and ORM technologies (JPA2, Hibernate)
+ Proven working experience in the J2EE, SpringBoot, ReactJS, Websphere technologies
+ Proven working experience in AWS or other cloud provider
+ Experience in Kubernetes would be an added advantage.
+ Experience with test-driven development
**_Hertz is an equal opportunity employer, all applicants must have the legal right to work in Ireland (Valid EU Passport / Relevant Visa)._**
**What You'll Get:**
+ Corporate discount on standard Hertz Rental in Corporate countries.
+ Hybrid/flexible working arrangements
+ 22 days holidays on hire rising to 27 days with service.
+ Occupational Pension Scheme with up to 5% company matched contribution.
+ Life Cover payable at 4 times base salary.
+ Profit Share Scheme
+ Tuition support plus access to compressive online learning platform
+ 10 days paid study leave & paid exam leave where exams fall during work hours.
+ Income protection for long term illness
+ Professional membership fees paid in full annually where membership relates directly to role.
+ Bike to Work & Travel Pass schemes.
+ Free onsite gym with personal training available as well as daily fitness classes
+ Employee Assistance Programme for employees and family
+ Onsite Occupational Health support
+ Discounted Microsoft at Home plan
+ Christmas savings scheme

We are looking for a Senior Software Developer to join our software development team. They must possess the necessary technical, organizational, and communication skills to participate on complex projects. They will be expected to contribute across the entire development cycle: analysis, proof-of-concept, design, implementation, testing, initial pilot/production launches, and production support. They will be responsible for meeting project timelines and communicating project scope, resource, and timeline changes to stakeholders in a timely manner. The responsibilities will also include knowledge sharing with peers, assist junior team members, and help facilitate improvements and efficiencies within the overall development organization.
**What You'll Do:**
+ Design, implement and maintain Java-based applications that can be high-volume and low-latency.
+ Contribute to all stages of software development lifecycle.
+ Analyse user requirements to define business objectives.
+ Envisioning system features and functionality.
+ Develop and test software.
+ Identify and resolve any technical issues arising.
+ Create detailed design documentation.
+ Propose changes to current Java infrastructure.
+ Develop technical designs for application development.
+ Write well designed, testable code.
+ Conducting software analysis, programming, testing, and debugging.
+ Support continuous improvement, investigating alternatives and technologies, and presenting for architectural review.
**What We're Looking For:**
+ Bachelor's Degree preferably in Computer Science, Information Technology, Computer Engineering, or related IT discipline; or equivalent experience.
+ 7 years of experience with proven hands-on Software Development experience with agile methodology
+ Proven working experience in Java development
+ Hands on experience in designing and developing applications using J2EE platforms
+ Object Oriented analysis and design using common design patterns.
+ Profound insight of Java and JEE internals (Classloading, Memory Management, Transaction management etc)
+ Excellent knowledge of Relational Databases, SQL and ORM technologies (JPA2, Hibernate)
+ Proven working experience in the J2EE, SpringBoot, ReactJS, Websphere technologies
+ Proven working experience in AWS or other cloud provider
+ Experience in Kubernetes would be an added advantage.
+ Experience with test-driven development
**_Hertz is an equal opportunity employer, all applicants must have the legal right to work in Ireland (Valid EU Passport / Relevant Visa)._**
**What You'll Get:**
+ Corporate discount on standard Hertz Rental in Corporate countries.
+ Hybrid/flexible working arrangements
+ 22 days holidays on hire rising to 27 days with service.
+ Occupational Pension Scheme with up to 5% company matched contribution.
+ Life Cover payable at 4 times base salary.
+ Profit Share Scheme
+ Tuition support plus access to compressive online learning platform
+ 10 days paid study leave & paid exam leave where exams fall during work hours.
+ Income protection for long term illness
+ Professional membership fees paid in full annually where membership relates directly to role.
+ Bike to Work & Travel Pass schemes.
+ Free onsite gym with personal training available as well as daily fitness classes
+ Employee Assistance Programme for employees and family
+ Onsite Occupational Health support
+ Discounted Microsoft at Home plan
+ Christmas savings scheme

**Introduction**
We are seeking a Cloud developer to join our IBM MQ Software as a Service development team. As part of our team, you will be responsible for building, testing and maintaining a SaaS service on a variety of hyperscalers.  The ideal candidate will have experience in cloud technologies such as container orchestration, continuous integration, and deployment. You will be responsible for delivering new features into the service, maintaining and enhancing our continuous integration and deployment pipelines, and ensuring the smooth operation of our services. The role requires a good level of personal organisation and the ability to work well within a distributed global team in a fast paced and exciting environment.
The MQ SaaS team employs agile development practices with all team members actively engaged in the planning, development, testing and usability related tasks owned and delivered by their 'Delivery Team'. Preferred candidates will be enthusiastic, highly motivated team players who have cloud software skills/experience and demonstrate a genuine desire and aptitude to perform the multi-disciplinary activities inherent in a DevOps role. Knowledge of continuous delivery techniques is important to ensure the stability of a live service. Successful candidate will be proficient in Agile Delivery practices and passionate about delivering on team objectives and sprint goals. The work performed will have a high degree of technical content, is diverse and challenging yet always rewarding. If you love technology, a technical challenge, being part of a successful team and want to make a difference to how global business meets the demands of moving data around the world quickly, securely and reliably then MQ SaaS is for you.
**Your role and responsibilities**
Successful candidates will have strong coding skills (GoLang essential) and a desire to learn full stack development, including but not limited to Feature Development, Testing and Customer Support. Candidates should also be comfortable working as part of a global team and possess good verbal & written communication skills.
**Required technical and professional expertise**
* Development skill in Golang to deliver robust scalable solutions.
* Technical knowledge in building, deploying and running applications in a Cloud environment such as AWS
* Proficiency with Kubernetes/OpenShift and container orchestration
* Good scripting experience, e.g. bash
**Preferred technical and professional experience**
* 4+ years experience in cloud engineering
* Proficient in agile development methodologies and tools
* Experience in utilizing Helm charts for packaging and deploying containerized applications
* Knowledge of terraform to provision and manage infrastructure
* Familiarity with Docker, Istio, and other container technologies.
* Management of version control and collaboration using Git and GitHub.
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.