Senior Java Developer - AI Project

Clarionconnexa; Milton Keynes; Hybrid; GBP 70,000 - 80,000; Full time

Job summary

A growing consultancy in Milton Keynes is seeking a Senior Software Engineer to design and develop a secure, full-stack software solution for the public sector. This role requires strong expertise in Java, Spring Boot, and React, along with 7+ years of experience in software development. The position offers a competitive salary of £70,000 – £80,000, a hybrid work model, and additional benefits including a discretionary bonus and medical insurance.

Benefits

Up to 20% discretionary bonus

28 days holiday + bank holidays

Medical insurance and health-related benefits

Pension scheme

Career development budget

Qualifications

• Minimum 7 years’ experience in Java Development.
• Strong experience with front‑end (React) and back‑end (Java, Spring Boot) technologies.
• Proven experience designing, building, and testing end‑to‑end web applications.

Responsibilities

• Design, build, and test full stack software in a secure, client‑focused environment.
• Work with modern front‑end technologies (React, TypeScript, HTML/CSS).
• Develop robust back‑end services using Java and Spring Boot.

Skills

Java Development

React

TypeScript

Spring Boot

PostgreSQL

MySQL

DevOps practices

CI/CD pipelines

Education

Degree in Computer Science, Engineering, or related field

Tools

Docker

GitHub Actions

Jenkins

Job description

Our client, a growing consultancy delivering cutting‑edge AI and data‑led services to government and public sector clients, is looking for a Senior Software Engineer to join their forward‑thinking team in Milton Keynes.

This is a fantastic opportunity to contribute to a nationally recognised AI innovation platform used to drive sensitive data discovery, redaction, and secure archiving for government departments. You’ll work across a modern tech stack and play a key role in the development, deployment, and support of a secure full‑stack system used across the UK public sector.

Responsibilities

• Design, build, and test full stack software in a secure, client‑focused environment
• Work with modern front‑end technologies (React, TypeScript, HTML/CSS) to deliver intuitive UI/UX
• Develop robust back‑end services using Java and Spring Boot
• Create and maintain APIs and integrate with secure relational databases (PostgreSQL/MySQL)
• Collaborate with cross‑functional teams including product managers, architects, and public sector stakeholders
• Contribute to cloud deployment, DevOps practices, and CI/CD pipelines
• Follow secure coding and authentication best practices
• Participate in code reviews and produce clear internal documentation
• Apply innovation to AI‑driven projects used across government departments

What We're Looking For

• Minimum 7 years’ experience in Java Development
• Strong experience with both front‑end (React/JavaScript/TypeScript) and back‑end (Java, Spring Boot) technologies
• Proven experience designing, building and testing end‑to‑end web applications
• Strong understanding of relational databases and query performance (PostgreSQL/MySQL)
• Exposure to DevOps and containerisation tools (e.g., Docker, GitHub Actions, Jenkins)
• Ability to work confidently in both Windows and Linux environments
• Degree in Computer Science, Engineering, or related field – or equivalent practical experience
• Excellent communication and problem‑solving skills
• British Citizenship is required due to the nature of the work. Applicants must be eligible for Security Clearance (SC)

Desirable

• Experience deploying AI/machine‑learning‑based applications
• Previous experience working on secure or air‑gapped systems
• Familiarity with public sector or defence projects
• Interest in progressing towards solution architecture or technical leadership

What's On Offer

• Salary: £70,000 – £80,000 depending on experience
• Bonus: Up to 20% discretionary bonus
• Hybrid working: 1‑2 days onsite per week in Milton Keynes
• 28 days holiday + bank holidays
• Medical insurance and health‑related benefits
• Pension scheme
• Career development budget, mentoring, and formal training
• The chance to be part of a highly impactful and nationally recognised AI‑led innovation project

This is an excellent opportunity for an ambitious engineer who enjoys solving real‑world problems through modern software and AI, and wants to make a tangible impact on the future of public sector digital services.