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Salary
≈ $71k – $171k per year (Estimated)
Location
In office (London)
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 15, 2026. First seen by Alion on Oct 14, 2026. Solirius scores A on the Alion truth index.

Overview
Company
Impact
Profile match
Top of page About us We help our clients deliver transformational growth through innovative technology solutions and people-centred services. OUR APPROACH For us, it’s all about people.

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.

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. You understand and align with Solirius Reply Values.

The Role:

We are looking for an experienced Node Developer with Java or Front End Development experience to join our team here at Solirius. You will be working as part of a team, developing and delivering exciting projects with a fantastic team of technology experts. You will be a fundamental part of the team and will be an expert in your field/specialism.

Requirements

Key Responsibilities:

  • Back-End Development: Design, develop, and maintain server-side applications and APIs using Node.js, ensuring performance, scalability, and security.
  • API Integration: Work with RESTful APIs and third-party services to integrate and enhance system functionality.
  • Database Management: Develop and maintain database architectures (e.g., MongoDB, PostgreSQL, MySQL) for robust data storage solutions.
  • Code Optimization: Write clean, modular, and reusable code, adhering to best practices and design patterns.
  • Testing and Debugging: Conduct unit and integration testing, debug issues, and ensure high-quality, reliable, and maintainable code.
  • Collaboration: Collaborate with front-end developers to integrate front-end components with server-side logic and maintain smooth user experiences.
  • Continuous Learning: Stay updated on the latest trends in Node.js and related technologies, applying new knowledge to improve system performance and code quality.
  • Agile Methodology: Participate in Agile development cycles, contributing to sprint planning, code reviews, and continuous delivery.

Key Skills/Experience:

  • Proven experience in Node.js development
  • Strong knowledge of JavaScript (ES6+), asynchronous programming, and event-driven architecture.
  • Experience with building and maintaining RESTful APIs.
  • Solid understanding of SQL and NoSQL databases (e.g., MongoDB, PostgreSQL, MySQL).
  • Familiarity with authentication and authorisation mechanisms (OAuth, JWT, etc.).
  • Experience with version control systems like Git and GitHub/GitLab.
  • Familiarity with containerization technologies such as Docker.
  • Strong understanding of web performance, security best practices, and error handling.
  • Ability to write clean, efficient, and scalable code.
  • Familiarity with CI/CD pipelines and DevOps practices is a plus.
  • Experience with TypeScript.
  • Familiarity with GraphQL or other modern data-fetching technologies.
  • Experience in integrating message brokers (e.g., RabbitMQ, Kafka).
  • Familiarity with cloud platforms like AWS, Azure, or Google Cloud.
  • Knowledge of microservices architecture and related tools.
  • Experience with testing frameworks like Mocha, Chai, or Jest.
  • Familiarity with front-end technologies like React, Vue, or Angular is a plus.
  • Experience with back-end technologies like Java or .Net is a plus

Benefits

Package and 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)
  • Contributory Pension
  • EAP with Help@Hand
  • Gym 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, 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. 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.

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