Java Engineer

Solirius Reply; Greater London; On-site; GBP 70,000 - 100,000; Full time

Benefits offered by this job

Competitive Salary

Bonus Scheme

Private Healthcare Insurance

25 Days Annual Leave + Bank Holidays

Development training

Contributory Pension

Flexible Working

Annual Away Days/Company Socials

Job summary

Solirius Reply, part of the Reply Group, is seeking an experienced Java Engineer to design, develop, and maintain scalable, high-performance Java applications in a modern cloud-native environment.

You will work in agile teams, collaborating with Product, QA, and DevOps to deliver secure, AI-aware solutions while upholding best practices in design, testing, and deployment.

Qualifications

• Proven experience building enterprise Java applications.
• Strong knowledge of Spring Boot and microservices architecture.
• Experience with RESTful services, distributed systems, and event-driven design.
• Experience with relational databases (PostgreSQL/MySQL/Oracle).
• Familiarity with cloud platforms (AWS/Azure/GC).
• Knowledge of CI/CD pipelines and automated testing frameworks.

Responsibilities

• Design, develop, test, and maintain enterprise-grade Java applications.
• Contribute to architectural decisions through technical design discussions.
• Develop scalable microservices and RESTful APIs.
• Collaborate with Product, QA, DevOps, and stakeholders.
• Mentor engineers and promote engineering best practices.
• Optimize performance, reliability, and security; troubleshoot production issues.

Skills

Java 12+

Spring Boot

Spring Framework

REST APIs

Distributed systems

Event-driven

Relational DBs

Cloud platforms

Docker & Kubernetes

CI/CD

Design patterns

Education

Bachelor's degree in Computer Science

Tools

Docker

Kubernetes

Job description

DescriptionAbout Us: Solirius Reply, part of the Reply Group, is a technology consultancy and digital transformation partner that helps organisations solve complex challenges through strategy, design, engineering, and delivery.We work closely with our clients to deliver secure, accessible, user-focused services that evolve with their needs.

Interested in learning more about this job Scroll down and find out what skills, experience and educational qualifications are needed.

By combining deep technical expertise with people-centred design, we create solutions that deliver meaningful, lasting impact.Our consultants partner directly with client teams, embedding into organisations to understand their goals, challenges, and users.

This collaborative approach enables us to deliver tailored solutions that drive measurable outcomes across public and private sectors.Past and present clients include the Ministry of Justice, Department for Education, Ministry of Housing, Communities and Local Government, UEFA, International Olympic Committee, and Mercedes-Benz.

Our services span the full digital delivery lifecycle, including architecture, engineering, delivery management, user-centred design, business analysis, data, DevOps, and AI.We operate as a collaborative and inclusive organisation that empowers our people to take ownership, innovate, and develop their expertise.

As an equal opportunities employer, we are committed to encouraging equality, diversity, and social mobility, while creating opportunities for our teams to work on meaningful projects that deliver lasting impact.

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 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.

• 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.

Key Skills/Experience:You need to be technically sound but also be able to convey your knowledge and expertise to clients internally and externally.

• 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 SkillsExperience 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.

• 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.

BenefitsCompetitive SalaryBonus SchemePrivate Healthcare Insurance25 Days Annual Leave + Bank HolidaysUp to 10 days allocated for development training per yearEnhanced Parental LeavePaid Fertility Leave (5 Days)Contributory PensionEAP with Membership BenefitsFlexible Benefits AllowanceCycle to Work and Electric Vehicle schemesFlexible WorkingAnnual Away Days/Company SocialsDiversity and Inclusion

• 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)
• Contributory Pension
• EAP with Membership Benefits
• Flexible Benefits Allowance
• 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, encouraging 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.

This commitment is reflected in initiatives such as our gender diversity group and our focus on mental health and wellbeing.

Whatever stage you are at, you will find an environment where you can thrive. 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.

Job SummaryID: E9AA4DA923Department: Software EngineeringType: full time