Senior Backend Developer- Golang

Remote (UK-based) | Occasional travel to Ashford, Kent (approximately twice a year)

Full-time | Permanent | 37.5 hours per week

About CLEO Systems

CLEO Systems is a wholly owned subsidiary of Integrated Care 24 (IC24), the UK’s leading not-for-profit social enterprise delivering innovative, patient-focused primary care services.

Our mission is Clinical Excellence Online (CLEO) — using technology to improve access to health and social care, reduce pressure on secondary care, and put patients first, not paperwork. IC24 supports over 6 million patients nationwide across NHS 111, GP out-of-hours, primary care, and secondary care services.

With over 20 years of software expertise, we work in close collaboration with the NHS to deliver solutions across secondary care outpatients, integrated urgent care, community services, urgent treatment centres, and pharmacy settings.

Our Ethos

• Integrity – We do the right thing
• Creativity – We find the best solutions
• Collaboration – We work together to deliver

The Role

As a Senior Developer you will play a key role in designing, building, and maintaining robust, high-performance backend services that power our healthcare applications. You’ll work with modern technologies including Go (Golang), Redis, RabbitMQ, Postgres, and Docker to deliver scalable and secure software that directly supports clinicians and patients.

Key Responsibilities

• Backend Development: Design, develop, and maintain backend services using Go (Golang).
• Messaging & Asynchronous Workflows: Build and manage reliable messaging patterns using queues such as RabbitMQ and Pub/Sub patterns.
• Database Design: Develop efficient and scalable queries and schemas using PostgreSQL.
• API Design: Develop clean, RESTful APIs and contribute to internal and external API documentation
• Containerisation: Aid in building services in containerised environments using Docker.
• Code Quality: Write testable, maintainable code and contribute to peer reviews, testing, and CI/CD pipelines.

Essential Criteria

• A minimum of 6 years’ experience in backend development roles
• Strong experience with Golang, including TDD and unit testing
• Sound understanding of concurrency models, worker pools and thread safe coding.
• Proven experience with Redis (caching and Pub/Sub) and RabbitMQ (messaging)
• Proficiency with ALM tools such as JIRA and GitHub
• Strong experience with relational databases, particularly PostgreSQL and libraries such as sqlx and gorm.
• Solid understanding of containerisation using Docker
• Experience integrating third-party solutions via APIs, messaging, or web services

What’s In It for You?

• Competitive salary
• Additional £3,000 on-call allowance
• Generous annual leave including bank holidays
• 6% employer pension contribution (NEST)
• Private medical insurance via Benenden Health (option to add family cover available)
• Laptop and full home-working kit provided
• Heartbeat wellbeing programme with discounts and resources
• Free, confidential 24/7 counselling service
• Ongoing learning and development opportunities

Interview Process

We believe interviews should be a two-way conversation. Our process typically includes:

1. Introductory call (45 minutes) with our Principal Software Architect
2. Technical stage – a Go coding challenge
3. Final interview – discussion of the challenge and further questions

Due to the nature of this position, employment is subject to proof of eligibility to work in the UK, completion of a satisfactory basic DBS disclosure and two references.

Closing date: Thursday 2nd April 2026

At CLEO Systems, we celebrate brave ideas and brave people.

👉 Learn more at www.cleosystems.com

We are committed to providing equal opportunities for all people and we particularly encourage applications from ethnic minorities, applicants with a disability and those from other under-represented groups.

If you would like to discuss any reasonable adjustments before applying or would like an accessible version of any recruitment documents, please contact the recruitment team on [email protected]