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# Full Stack Software Engineer

- **Company:** eSynergy Solutions Limited
- **Location:** London, UK
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Amazon Web Services, Cloud Computing, Continuous Integration, Distributed Systems, NoSQL, Commercial Software, SQL Databases, Enterprise Software Applications, ReactJS, Spring-boot, Backend, Event Driven Architecture, Gitlab-ci, Kubernetes, Apache Kafka, Front End Software Development, Docker, Microservices
- **Published:** September 21, 2026
- **Apply:** https://www.totaljobs.com/job/full-stack-software-engineer/esynergy-solutions-limited-job108010686

## About the Role

Do you enjoy building scalable, customer-facing applications using Java, microservices and modern cloud technologies?, We are looking for an experienced Java Engineer to join one of our strategic programmes, where esynergy is delivering a major piece of work for a FinTech client.

You'll be working predominantly across backend systems, helping to build and evolve large-scale, customer-facing applications using Java, Spring Boot and microservices.

For some positions within the programme, we are also looking for full-stack engineers with React.js experience. Backend engineering remains the primary focus.

Essential Skills/Experience: ??

 * 5+ years' relevant commercial software engineering experience.
 * Strong experience with Java and Spring Boot.
 * Strong experience designing and developing microservices.
 * Experience building and evolving customer-facing applications.
 * Experience with SQL and/or NoSQL databases.
 * Strong technical background in backend development and distributed systems.
 * Experience working with large-scale applications, ideally supporting 10,000+ users.
 * Clear examples of technical, product or customer impact across previous projects.

Full-Stack Roles: ??

For full-stack opportunities within the programme:

 * Strong experience across both backend and frontend development.
 * Commercial experience with React.js.
 * Strong Java/backend expertise remains the priority.

Nice to Have: ??

 * Experience with Kafka and event-driven architectures.
 * Cloud experience, particularly AWS.
 * Experience with Kubernetes and Docker.
 * CI/CD experience, particularly GitLab CI/CD.
 * Previous experience within FinTech, payments, banking or financial services.



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