Senior Software Engineer

Job Title: Senior Software Engineer

Band: 5

Salary: £59,877 - £66,869 (plus allowance up to £9,000 per annum depending on technical assessment)

Location: Liverpool, Norwich, Newport, Birmingham

Contract Type: Permanent

Hours: Full time / Compressed

Closing Date: 20-07-26

Join a cross-functional squad of four engineers within a high‑trust, ego‑free engineering culture that processes over £2billion in annual procurement for critical public services. With a continuous‑deployment mindset, you will help build robust, intelligent platforms that optimise national spending and deliver tangible value to the nation.

• Own the design, build, and deployment of scalable features for the core procurement platform.
• Take accountability for the performance and security of systems handling high‑volume public sector data.
• Lead the practical integration of Agentic AI coding practices into the team's daily development workflow.
• Write and review clean, secure, and well‑tested code while participating in constructive peer reviews.
• Coach and mentor fellow team members, sharing technical knowledge and providing regular honest feedback and pair programming.
• Collaborate closely with product managers and UX designers to translate complex public sector needs into technical solutions.
• Champion high engineering standards, including refining CI/CD pipelines and minimizing technical debt.

• Python Expert – extensive backend experience with Python.
• Claude Code Experience – practical experience with Agentic AI coding practices and LLM workflows to improve workflow efficiency while managing token consumption and API costs.
• UML Modeling Experience – proven capability to translate high‑level architecture into detailed low‑level designs using UML modeling techniques.
• Solid Craftsmanship – deep understanding of clean code and SOLID principles, with a demonstrated ability to apply these standards during peer code reviews.
• Test‑Driven Expert – advanced TDD skills and the ability to structure robust unit and integration tests for high‑volume microservices.

• Effective decision making and leadership.
• Delivering at pace.
• Information security and modern development standards.
• Systems design (lead role).

• Competitive salary.
• Generous pension scheme.
• Discretionary non‑contractual performance‑related bonus.
• Option to work remotely in addition to the advertised office location.
• Flexi‑time scheme (available for B1‑B6).
• Minimum 25 days annual leave up to a maximum service‑related 30 days excluding bank holidays.

The Civil Service is committed to attract, retain and invest in talent wherever it is found. Applicants are invited to apply through the official Civil Service careers hub. Equal opportunities are provided in accordance with civil service EEO policies.