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Senior Software Engineer
Posted on Sept. 6, 2025
- Nenagh, Ireland
- 0 - 0 USD (yearly)
- Full Time

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Calling all innovators – find your future at Fiserv.
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 Software EngineerJob Summary
Seeking an experienced and highly adaptable Senior Java Developer to join a dynamic FinTech company. This role demands a developer proficient in both microservices and monolithic architectures, capable of driving complex projects in a fast-paced environment. The ideal candidate will have deep expertise in some if not all of the following, Spring Boot, Spring Security, GCP cloud technologies, containerization (Docker, Kubernetes), Jenkins for CI/CD, Git for version control, and agile methodologies such as Scrum. This position requires leadership, mentoring capabilities, and the ability to contribute significantly to architectural decisions.
Responsibilities
Lead the design, development, and maintenance of Java applications, including both microservices and monolithic systems.
Participate in the full software development lifecycle (design, coding, testing, deployment).
Architect and implement complex solutions using Spring Boot, Spring Batch and potentially Spring Security.
Deploy and manage applications on GCP cloud infrastructure.
Implement and manage containerization using Docker and Kubernetes.
Develop and maintain CI/CD pipelines using Jenkins.
Utilise Git for version control and collaboration, and conduct code reviews.
Work with databases (SQL and NoSQL), optimize queries for performance, and demonstrate a strong understanding of database concepts.
Participate in Agile ceremonies (daily stand-ups, sprint planning, retrospectives).
Mentor junior and mid-level developers and provide technical guidance.
Contribute to system architecture and design decisions, and drive technical innovation.
Troubleshoot and resolve complex technical issues, and provide root cause analysis.
Desirable Skills
Extensive experience with Java programming principles and object-oriented design.
Expertise in Spring Boot, Spring Security, and other Spring ecosystem components.
Proven experience with both microservices and monolithic application development.
Strong communication, collaboration, and leadership abilities.
Strong understanding of GCP cloud technologies.
Hands-on experience with Docker and Kubernetes.
Proficiency in designing and implementing RESTful APIs.
Strong database skills (SQL and NoSQL) and experience with data modeling.
Extensive experience with Git and CI/CD pipelines using Jenkins.
In-depth knowledge of software development principles and best practices.
Excellent problem-solving, debugging, and troubleshooting skills.
Ability to quickly learn new technologies and adapt to changing priorities in a FinTech environment.
Experience working in a Scrum Agile environment.
Demonstrated adherence to coding standards and best practices.
Qualifications
Bachelor's or Master's degree in Computer Science or a related field (or equivalent practical experience).
8+ years of professional experience in Java development.
Extensive experience with Java, Spring Boot, Spring Security, GCP, Docker, Kubernetes, Jenkins, and Git.
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.
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