Java Engineer

Salary: £55,000 - 95,000 per year

Requirements:

• Strong proficiency in Java (Java 12+ preferred).
• Experience with Spring Boot, Spring Framework, and microservices architecture.
• Strong understanding of REST APIs, distributed systems, and event-driven architectures.
• Experience with relational databases such as PostgreSQL, MySQL, or Oracle.
• Experience with cloud platforms such as AWS, Azure, or Google Cloud Platform.
• Familiarity with containerisation technologies including Docker and Kubernetes.
• Experience with CI/CD tools and automated testing frameworks.
• Strong knowledge of software design patterns, data structures, and system design principles.
• Ability to communicate technical knowledge and expertise to clients internally and externally.
• Experience building or integrating AI-powered applications and services is desirable.
• Familiarity with Large Language Models (LLMs), Generative AI, Retrieval-Augmented Generation (RAG), AI agents, or machine learning workflows is desirable.
• Experience integrating AI APIs and platforms such as OpenAI, Anthropic, Azure AI, or similar technologies is desirable.
• Knowledge of vector databases, embeddings, prompt engineering, and AI application architecture is desirable.
• Experience with Python for AI/ML-related development is desirable.
• Exposure to MLOps practices and AI model deployment pipelines is desirable.
• Contributions to open-source projects or technical communities are desirable.

Responsibilities:

• Design, develop, test, and maintain enterprise-grade Java applications.
• Assist with technical design discussions and contribute to architectural decisions.
• Develop scalable microservices and RESTful APIs.
• Collaborate with cross-functional teams including Product, QA, DevOps, and Business stakeholders.
• Review code, mentor engineers, and promote engineering best practices.
• Optimise application performance, reliability, and security.
• Participate in Agile ceremonies including sprint planning, stand-ups, and retrospectives.
• Troubleshoot production issues and implement sustainable solutions.
• Contribute to CI/CD pipelines and cloud deployment strategies.
• Evaluate and adopt emerging technologies that improve product capabilities and development efficiency.

Technologies:

• AI
• AI Agents
• AWS
• Azure
• CI/CD
• Cloud
• DevOps
• Docker
• Java
• Kubernetes
• Machine Learning
• MLOps
• MySQL
• Oracle
• PostgreSQL
• Python
• RAG
• REST
• Security
• Spring
• Spring Boot
• microservices
• Support

More:

We are Solirius Reply, part of the Reply Group, and we are a technology consultancy and digital transformation partner helping organisations solve complex challenges through strategy, design, engineering, and delivery. We work closely with clients across public and private sectors to deliver secure, accessible, user-focused services, and our past and present clients include the Ministry of Justice, Department for Education, Ministry of Housing, Communities and Local Government, UEFA, the International Olympic Committee, and Mercedes-Benz. We offer a full digital delivery lifecycle spanning architecture, engineering, delivery management, user-centred design, business analysis, data, DevOps, and AI. We are a collaborative and inclusive organisation that empowers our people to take ownership, innovate, and develop their expertise, with competitive salary, bonus scheme, private healthcare insurance, 25 days annual leave plus bank holidays, up to 10 days allocated for development training per year, enhanced parental leave, paid fertility leave, pension, EAP with Help@Hand, gym membership benefits, cycle to work and electric vehicle schemes, flexible working, and annual away days/company socials. We are committed to equality, diversity, social mobility, mental health, wellbeing, and accessible recruitment.

last updated 35 week of 2026