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How to Hire a Back-End Developer in the UK (2026)

Building the logic, data and services behind your product. Hiring a Back-End Developer.
By Mark Wilkinson, Managing Director of Coburg Banks
Charles leads Coburg Banks IT, placing technology professionals from helpdesk to CTO for businesses across the UK.
Mark's Linkedin Profile

A Back-End Developer builds the engine behind the product - the logic, data and services users never see but rely on. Reliability, security and clean design matter more here than surface polish.

⚡ In short

A UK Back-End Developer typically earns £45k-£70k. Expect a placement in 4-8 weeks. Coburg Banks recruits them with no fee until your hire starts.

£45k-£70k

Typical base salary

4-8 weeks

Time to hire

48 hrs

To first shortlist

12 wks

Replacement guarantee

What to look for in a Back-End Developer

1

Systems thinking

Ask how they design for reliability, scale and security, not just features.

2

Data and API skill

Much of the role is data and integrations. Probe their approach to both.

3

Language fit, with flex

Match core skills to your stack, but value strong fundamentals over an exact match.

How to run the hire

1. Define the stack and systems
Be clear on languages, databases, and whether it's new build or maintenance.

2. Use a design discussion
Talk through a system design to see how they reason about trade-offs.

3. Source and approach
Approach passive candidates directly.

4. Assess with a real problem
A practical task or code review reveals more than puzzles.

5. Reference reliability
Confirm they built things that stayed up and stayed maintainable.

Frequently asked questions

How much does it cost to hire a Back-End Developer?

Fees typically run 15-20% of first-year salary, capped and agreed upfront.

Nothing is due until your hire starts.

How long does it take to hire a Back-End Developer?

Usually 4-8 weeks.

Stack and seniority drive the timeline - niche languages or senior roles narrow the pool.

What does a Back-End Developer do?

A Back-End Developer builds the server-side of an application - business logic, databases, APIs and integrations - that the front-end and users depend on.

They focus on reliability, performance and security as much as features.

What's the difference between back-end and full-stack?

A Back-End Developer specialises in server-side work. A Full-Stack Developer covers both front and back end.

Full-stack offers flexibility; a specialist offers depth. We'll help you decide which your role needs.

What should I ask a Back-End Developer at interview?

Try: Design a simple API for this scenario and talk me through it.
How do you approach database performance?
How do you handle security? and Tell me about a system you scaled.

Do you recruit across languages and frameworks?

Yes - across the common back-end languages and frameworks.

We match core stack where it's essential and weight fundamentals where a strong developer could pick up your tools quickly.

External citations

Ready to hire your next Back-End Developer?

Tell us about your role and a specialist IT recruiter will call you. No fee until your hire starts.