Senior Software Developer (Backend Golang)

CLEO Systems; Ashford; Hybrid; GBP 59,000 - 70,000; Full time

Job summary

A leading healthcare technology firm in the UK is seeking a Senior Software Developer to shape backend system architecture and delivery. The role emphasizes clean code and scalable systems while working with modern technologies like Go, RabbitMQ, and PostgreSQL. You'll contribute to architecture discussions, build event-driven workflows, and ensure high code quality. The position offers £70,000 annual salary with hybrid working flexibility and great benefits, including a company pension and health support.

Benefits

Company pension scheme

Free 24/7 independent counselling service

Reward and discount platform

Company-paid health support

Learning & Development opportunities

Community engagement paid day for volunteering

Qualifications

• Strong commercial experience with Go (Golang).
• Solid understanding of event-driven architecture and microservices.
• Experience with Redis, RabbitMQ, and PostgreSQL.
• Familiarity with Docker and containerised application development.
• Proven track record of writing clean, tested, and maintainable code.

Responsibilities

• Design and maintain reliable backend services using Go (Golang).
• Contribute to architecture discussions and technical decision-making.
• Build robust event-driven and asynchronous workflows.
• Work with microservices-based architectures.
• Ensure high code quality with clean, maintainable code.

Skills

Go (Golang)

Event-driven architecture

Microservices

Redis

RabbitMQ

PostgreSQL

Docker

Job description

The Role

As a Senior Software Developer, you’ll play a key role in shaping the architecture and delivery of our backend systems. You’ll work with modern technologies, influence technical decisions, and collaborate with talented engineers who care deeply about quality and impact.

Essential responsibilities include:

• Designing, developing, and maintaining reliable backend services using Go (Golang)
• Contributing to architecture discussions and technical decision-making
• Building robust event-driven and asynchronous workflows using tools such as RabbitMQ
• Working with microservices-based architectures
• Ensuring high code quality through clean, well-tested, and maintainable code
• Supporting and improving system reliability, performance, and scalability

About You

You’re an experienced backend engineer with a passion for clean code and scalable systems, and you enjoy taking ownership and initiative.

Essential skills and experience:

• Strong commercial experience with Go (Golang)
• Solid understanding of event-driven architecture and microservices
• Hands-on experience with:
• Redis
• RabbitMQ
• PostgreSQL
• Familiarity with Docker and containerised application development
• A proven track record of writing clean, tested, and maintainable code

Desirable

• Previous experience working with healthcare systems

Who Are We?

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.

Through our mission of Clinical Excellence Online (CLEO), we support the wider IC24 ambition to:

• Improve access to health and social care
• Reduce demand on secondary care services

IC24 supports over 6 million patients, delivering GP out-of-hours services, NHS 111, primary and secondary care support across the UK.

Location & Hours

• Hybrid working – remote with occasional travel to Ashford, Kent
• 37.5 hours per week

What’s in It for You?

• Salary: £70,000 per annum (dependent on experience)
• Hybrid working flexibility
• Nest Company Pension Scheme
• Free 24/7 independent counselling service
• Reward and discount platform
• Benenden Health – company-paid health support, from private GP appointments to secondary care treatment
• Learning & Development opportunities to support career progression
• Community engagement – one paid day per year for volunteering or charitable activities

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: 19th February 2026

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

www.cleosystems.com

This advert may close sooner if sufficient applications are received.

We are committed to equal opportunities and particularly encourage applications from ethnic minorities, applicants with disabilities, and those from other under-represented groups.

If you would like to discuss reasonable adjustments or request accessible recruitment documents, please contact our recruitment team at [e-mail].