Java Developer

Addition Solutions LTD; Cheltenham; Híbrido; GBP 70 000 - 110 000; Tempo integral

Vantagens oferecidas por esta oferta de emprego

Competitive salary

Hybrid work options

Resumo da oferta

Addition Solutions LTD is seeking a Java Developer to build secure, high‑performance backend systems for national security programmes. You will design microservices and RESTful APIs for data and analytics platforms in highly secure environments.

Location options include Gloucester, London or Manchester with up to 80% onsite. The role emphasizes secure coding, observability, and collaboration with stakeholders to deliver robust technical solutions.

Qualificações

• Strong Java development experience (11+).
• Experience designing microservices and RESTful APIs for distributed systems.
• Secure coding practices in high-security environments.
• Active DV security clearance is essential.

Responsabilidades

• Design secure Java-based backend services for mission-critical systems.
• Build scalable microservices and RESTful APIs to support data and analytics platforms.
• Develop high-performance distributed applications capable of handling large datasets.
• Integrate backend systems with streaming, analytics, and AI/ML-enabled platforms.
• Apply secure coding principles to meet strict performance, resilience, and security standards.
• Contribute to architectural decisions, code reviews, and continuous improvement initiatives.
• Implement observability, logging, and monitoring in production environments.
• Collaborate with stakeholders to translate requirements into robust technical solutions.

Conhecimentos

Java (11+)

Spring Boot

Microservices

RESTful APIs

DevSecOps

DV clearance

Observability & monitoring

Cloud

Ferramentas

Docker

Kubernetes

CI/CD

Descrição da oferta de emprego

A specialist UK consultancy working at the heart of national security and intelligence programmes is seeking a Java Developer to build secure, high-performance backend systems. This role focuses on delivering mission-critical applications that support advanced data, analytics, and operational platforms in highly secure environments.

Role Overview

• Location: Gloucester, London or Manchester (up to 80% onsite)
• Package: Competitive salary + benefits
• Industry: National Security / Software Engineering

What You’ll Be Doing:

• Designing and developing secure Java-based backend services for mission-critical systems
• Building scalable microservices and RESTful APIs to support intelligence and data platforms
• Developing high-performance distributed applications capable of handling large, complex datasets
• Integrating backend systems with streaming, analytics, and AI/ML-enabled platforms
• Applying secure coding principles to meet strict performance, resilience, and security standards
• Contributing to architectural decisions, code reviews, and continuous improvement initiatives
• Implementing observability, logging, and monitoring to support production environments
• Collaborating with stakeholders to translate requirements into robust technical solutions

Main Skills Needed:

• Strong commercial experience with Java (11+) and frameworks such as Spring Boot
• Solid understanding of object-oriented programming and backend system design
• Experience building microservices and RESTful APIs in distributed environments
• Background in scalable, high-performance systems, ideally in data-intensive domains
• Familiarity with DevSecOps practices including Docker, Kubernetes, CI/CD pipelines and automated testing
• Understanding of system observability and production support tooling
• Ability to work closely with stakeholders to define and deliver technical solutions
• Active DV security clearance (essential)

What’s in It for You:

• Work on highly secure, nationally significant systems with real-world impact
• Exposure to complex, large-scale backend engineering challenges
• Opportunity to work with modern architectures including microservices and cloud-native tooling
• Strong emphasis on engineering quality, security, and continuous improvement
• Collaborative, technically strong teams operating in mission-focused environments
• Long-term career development within a highly specialised and growing sector

We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.