Senior Software Development Engineer (SDE3) - Java/API/Backend

DCV Technologies Limited; Digswell; On-site; GBP 50,000 - 70,000; Full time

Job summary

A global tech company based in the United Kingdom seeks an experienced Java Developer to support the development of a next-generation Fulfilment Platform. The role focuses on architecting and enhancing high-performance Java applications, improving system efficiency, and collaborating with cross-functional teams. Ideal candidates should have deep expertise in Java and Spring Boot, experience in agile development, and a strong understanding of microservices. Opportunities for mentorship and innovation abound in this dynamic environment.

Qualifications

• Deep expertise in Java, Spring Boot, and associated toolsets.
• Experience in agile product development of scalable Java applications.
• Proven track record in building reliable backend services.

Responsibilities

• Architect, build, and enhance Java-based backend applications.
• Improve scalability, efficiency, and reliability of critical systems.
• Develop APIs and microservices for enterprise integration.

Skills

Java

Spring Boot

Agile product development

API development

Microservices

Job description

This role supports the development of a next‑generation, scalable, and resilient Fulfilment Platform powering both manual and robotic warehouse operations across multiple product categories. You will join a global Java‑focused engineering team working with modern microservices, event‑driven architecture, cloud technologies, and a strong DevOps culture.

Responsibilities

• Design & Development: Architect, build, and enhance high‑performance Java‑based backend applications for new fulfilment capabilities.
• System Optimisation: Improve scalability, efficiency, and reliability of mission‑critical systems in collaboration with cross‑functional teams.
• API & Microservices Integration: Develop robust APIs and microservices integrating with enterprise and third‑party systems.
• Code Quality: Deliver clean, maintainable, well‑documented, and test‑driven code aligned with industry standards.
• Troubleshooting: Diagnose and resolve complex production issues to ensure uninterrupted operational performance.
• Mentorship: Support and guide junior engineers while promoting best practices and continuous improvement.
• Innovation & Collaboration: Work closely with hardware, data science, and operations teams to drive forward‑thinking technical solutions.

Qualifications

• Deep expertise in Java, Spring Boot, IDEs, and associated toolsets.
• Experience in agile product development and delivering scalable, distributed Java applications.
• Proven background in building and supporting reliable full‑stack or backend services.
• Experience working within globally distributed engineering teams is highly beneficial.
• Strong understanding of frameworks, abstraction layers, TDD, and debugging complex issues.
• Ability to apply design patterns, domain modelling, idempotence, CQRS, and eventual consistency principles.