Backend Developer

London, United Kingdom | Posted on 24/06/2026

Scrumconnect Consulting is a multi-award-winning digital consultancy whose work has positively influenced the lives of over 40 million UK citizens. We deliver impactful technology solutions across UK government departments, working at the forefront of user-centred design, agile delivery, and scalable digital services that genuinely make a difference.

We are seeking an experienced Senior Backend Developer with strong expertise in Java and Spring Boot to design, develop, and maintain scalable backend systems. The ideal candidate combines solid software engineering fundamentals with the ability to effectively leverage AI-powered development tools and coding assistants to accelerate delivery, improve code quality, and enhance engineering productivity.

• Design, develop, and maintain scalable backend services using Java (8/11/17+) and Spring Boot
• Build, optimise, and maintain RESTful APIs and microservices-based applications
• Collaborate with frontend, Dev Ops, product, and AI engineering teams
• Use AI-assisted development tools (e.g., Git Hub Copilot, Cursor, ChatGPT, Claude, Gemini, etc.) to accelerate development, debugging, testing, and documentation
• Review, validate, and refine AI-generated code to ensure maintainability, security, and performance
• Design robust system architectures and contribute to technical decision-making
• Implement automated testing, CI/CD pipelines, and deployment processes
• Monitor application performance, troubleshoot issues, and optimise system reliability
• Conduct code reviews and mentor team members on engineering best practices and AI-assisted development workflows
• Document technical solutions and architecture using AI-assisted productivity tools where appropriate

• 5+ years of hands‑on backend development experience
• Strong expertise in Java and Spring Boot
• Solid understanding of microservices architecture and distributed systems
• Experience designing and developing REST APIs
• Strong knowledge of Hibernate/JPA and relational database design
• Experience with messaging systems such as Kafka or RabbitMQ
• Hands‑on experience with cloud platforms (AWS, Azure, or GCP)
• Experience with Docker and Kubernetes
• Strong database experience with PostgreSQL, MySQL, MongoDB, or similar technologies
• Experience with Git, CI/CD pipelines, and Agile development practices
• Understanding of application security, secure coding practices, and performance optimisation
• Demonstrated experience using AI-assisted software development tools in daily engineering workflows
• Ability to critically evaluate, test, and improve AI-generated code and technical solutions

• Experience building AI-powered applications or integrating LLM APIs
• Familiarity with Retrieval-Augmented Generation (RAG), vector databases, embeddings, and AI agent architectures
• Experience integrating services from OpenAI, Anthropic, Google Gemini, or similar AI platforms
• Experience working in regulated, standards-driven, or public sector environments
• Familiarity with Infrastructure as Code (Terraform, Cloud Formation, etc.)
• Relevant certifications in Java, cloud technologies, or AI engineering
• Experience measuring and improving engineering productivity through AI-assisted development practices

• Strong backend engineering fundamentals
• Quality and maintainability of delivered code
• Effective use of AI tools to increase productivity without compromising quality
• System design and architectural thinking
• Problem-solving and debugging capabilities
• Ability to mentor others in AI-assisted software engineering practices

Following an initial CV review, successful candidates will be invited to a short screening call with our recruitment team, followed by a two-stage process comprising a technical assessment and a values‑based interview with the hiring team. We aim to move quickly and will keep you informed at every stage.

Scrumconnect Consulting is an equal opportunities employer. We are committed to building a diverse and inclusive team and welcome applications from all backgrounds, regardless of age, disability, gender, ethnicity, religion, or sexual orientation.