Senior Developer

UK Home Office; Croydon; Hybrid; GBP 16,000 - 19,000; Full time

Benefits offered by this job

Civil Service Pension

Annual leave 25 days

Flexi-time

In-year reward scheme

Hybrid work options

Job summary

UK Home Office is seeking a Senior Developer to deliver core components of our solutions. You will write clean, secure code, follow test-driven development, and operate with autonomy to meet technical standards.

You will mentor engineers, support recruitment and assessment, and help select technologies across front-end and back-end services in a hybrid UK setup (Sheffield, Salford, Croydon, Glasgow). The role also offers a skills allowance up to £17,668 and generous leave.

Qualifications

• Senior Developer with strong coding and architectural skills.
• Experience mentoring engineers and participating in recruitment/assessments.
• Experience with front-end/back-end services and distributed systems desirable.

Responsibilities

• Develop core components of our solutions following technical standards.
• Write clean, secure code using a test-driven approach.
• Mentor and lead other engineers and assist with recruitment and assessment.

Job description

Location: Sheffield | Salford | Croydon | Glasgow (hybrid)

Skills allowance of up to £17,668, pending assessment

Advert Close Date: 28th September 2026

Job summary

The Senior Developer is key for our product delivery, you will develop core components of our solutions and help select appropriate technologies. Your subject matter expertise will enable you to operate with greater levels of autonomy and decision making.

You will work to our technical standards writing clean, secure code following a test-driven approach, ensuring the code is open as far as possible and can be re-used.

The Senior Developer will be expected to mentor and lead other engineers in technical tasks, as well as support recruitment and assessment activities.

Tools and Technologies we use

We are keen for Engineers to continue learning new technologies, we have a large range in the Home Office including:

• AI: Python, Github Copilot, OpenAI.
• Integrating and building services across front‑end and back‑end components, ensuring reliable deployment and interoperability in distributed systems (SINT – Level 4)
• Managing and utilising application data effectively (e.g. APIs, state management, persistence layers), ensuring appropriate handling and governance (DATM – Level 4)

Why work for us

Find out more information at: Benefits - Home Office Careers, but some of the primary ones are:

• A Civil Service Pension with employer contribution rates of £18,173 annually
• In-year reward scheme for one-off or sustained exceptional personal or team achievements.
• 25 days annual leave on appointment, rising with service.
• 8 days of public holidays, plus 1 additional privilege day.
• Flexi-time allowance and flexible working options

Plus so much MORE: https://careers.homeoffice.gov.uk/benefits