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Java Engineer

Job in Cardiff, Cardiff City Area, CF10, Wales, UK
Listing for: Solirius Consulting
Full Time position
Listed on 2026-07-18
Job specializations:
  • Software Development
    Backend Developer, Cloud Engineer - Software, AI Engineer (Applied/Software), Full Stack Developer
Job Description & How to Apply Below

About You

You are a motivated and adaptable professional with a strong analytical mindset and a passion for using technology to solve real-world problems. You enjoy working in collaborative, agile teams and take pride in delivering high-quality solutions that make a tangible impact. With strong communication skills and a consultative approach, you’re comfortable engaging with clients, understanding their needs, and translating them into effective outcomes.

The Role

We are seeking an experienced Senior Java Engineer to join our engineering team and play a key role in designing, developing, and maintaining scalable, high-performance applications. The ideal candidate will have strong expertise in Java-based enterprise systems, cloud-native development, and modern software engineering practices. Experience with Artificial Intelligence (AI) technologies and AI-enabled applications is highly desirable.

Key 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, Dev Ops, 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.
Key Skills & Experience

You need to be technically sound but also be able to convey your knowledge and expertise to clients internally and externally. In terms of specific languages you should have commercial experience in some or all of the following;

  • 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.
Desirable Skills
  • Experience building or integrating AI‑powered applications and services.
  • Familiarity with Large Language Models (LLMs), Generative AI, Retrieval‑Augmented Generation (RAG), AI agents, or machine learning workflows.
  • Experience integrating AI APIs and platforms such as OpenAI, Anthropic, Azure AI, or similar technologies.
  • Knowledge of vector databases, embeddings, prompt engineering, and AI application architecture.
  • Experience with Python for AI/ML‑related development.
  • Exposure to MLOps practices and AI model deployment pipelines.
  • Contributions to open‑source projects or technical communities.
Benefits
  • Competitive Salary
  • Bonus Scheme
  • Private Healthcare Insurance
  • 25 Days Annual Leave + Bank Holidays
  • Up to 10 days allocated for development training per year
  • Enhanced Parental Leave
  • Paid Fertility Leave (5 Days)
  • Statutory & Contributory Pension
  • EAP with Help@Hand
  • Gym Membership Benefits
  • Cycle to Work and Electric Vehicle schemes
  • Flexible Working
  • Annual Away Days/Company Socials
Diversity and Inclusion

As an equal opportunities employer, we are committed to creating a work environment that supports, celebrates, encourages and respects all individuals, where all processes are based on merit, competence and business needs.

Encouraging high social mobility is really important to us. We foster an inclusive culture by welcoming different perspectives, enabling equitable opportunities and promoting open dialogue. Whatever stage you are at, you will find an environment where you can thrive.

Accessibility and Reasonable Adjustments

Should you require further assistance or require any reasonable adjustments to be put in place to better support your application process, please do not hesitate to raise this with us.

As a Disability Confident employer, we are committed to ensuring our recruitment process is accessible and inclusive, enabling all candidates to demonstrate their skills, experience and potential.

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