Java Engineer AI

About Us

Solirius Reply, part of the Reply Group, delivers technical consultancy and application delivery to our clients in order to solve real world problems and allow our clients to respond to an ever-changing technical landscape. We partner closely with our clients, embedding our consultants into their businesses in order to provide a bespoke service, allowing us to truly understand our clients' needs.

It is this close collaboration with our clients that has enabled us to grow rapidly in recent years and will drive our ambitious future growth plans. We currently have over 300 consultants working with a variety of key clients from both the public and private sectors such as the Ministry of Justice, Department for Education, FCDOS, UEFA, International Olympic Committee and Mercedes Benz;

with plans to increase our client base further in the near future.

We operate as a flat organisation and believe in trusting and supporting our team to operate independently. We pride ourselves on being specialists at what we do, making the most of our consultants' expertise in their fields in order to provide a best‑in‑class service to our clients. All our consultants have the opportunity to work on a range of different projects, providing a broad range of knowledge on which to develop their careers and progress in the direction they choose.

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.

You understand and align with Solirius Reply Values.

We are seeking a highly skilled Java Engineer with AI expertise to design, develop, and deploy intelligent, scalable applications. You will work at the intersection of backend engineering and artificial intelligence, building systems that integrate machine learning models, data pipelines, and cloud‑native services. This role is ideal for someone passionate about clean architecture, performance optimisation, and applying AI technologies to real‑world business challenges.

• Design, develop, and maintain high-performance Java‑based applications
• Integrate AI/ML models into production‑grade backend systems
• Build RESTful APIs and microservices using modern Java frameworks
• Collaborate with data scientists to deploy and scale machine learning solutions
• Optimise system performance, scalability, and security
• Implement CI/CD pipelines and ensure high code quality standards
• Work with cloud platforms to deploy AI‑powered services
• Contribute to architecture decisions and technical roadmaps

• Strong experience with Java 12+, Spring Boot, and microservices architecture
• Experience integrating AI/ML solutions into backend systems
• Understanding of REST APIs, distributed systems, and database design
• Familiarity with SQL and No
  
  SQL databases
• Experience with cloud platforms (e.g., Amazon Web Services, Google Cloud Platform, or Microsoft Azure)
• Knowledge of containerisation technologies like Docker and orchestration tools such as Kubernetes
• Experience with AI/ML frameworks (e.g., Tensor Flow, PyTorch, or Java‑based ML libraries)
• Strong problem‑solving and communication skills

• Experience with NLP, computer vision, or recommendation systems
• Familiarity with MLOps practices and model lifecycle management
• Knowledge of event‑driven architectures (Kafka or similar)
• Experience with Dev Ops tooling and infrastructure as code
• Exposure to Generative AI and large language models

• 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
• Flexible Working
• Annual Away Days/Company Socials

Solirius Reply is an equal opportunities employer. We are committed to creating a work environment that supports, celebrates, encourages, and respects all individuals and in which all processes are based on merit, competence and business needs. We do not discriminate on the basis of race, religion, gender, sexuality, age, disability, ethnicity, marital status or any other protected characteristics.

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