Senior Software Engineer

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

Interview Date(s): 5,6,7th August 2026 (subject to change)

Join a cross‑functional squad of four engineers working within a high‑trust, ego‑free engineering culture, processing over £2 billion in annual procurement for critical public services. Operating with a continuous‑deployment mindset, our mission is to build robust, intelligent platforms that optimise national spending and deliver tangible value to the nation. We favour strong opinions, weakly held, peer code reviews, and an open environment where diverse perspectives and honest feedback are the foundation for delivering exceptional software.

• Feature Delivery: Own the design, build, and deployment of scalable features for our core procurement platform.
• System Reliability: Take accountability for the performance and security of systems processing high‑volume public sector data.
• AI Tooling Adoption: Lead the practical integration of agentic AI coding practices into the team’s daily development workflow.
• Write and Review Code: Ship clean, secure, and well‑tested code while participating in constructive peer reviews.
• Coach and Mentor: Guide fellow team members, sharing technical knowledge and supporting their development through regular, honest feedback and pair programming.
• Collaborate Across Functions: Work closely with product managers and UX designers to translate complex public sector needs into technical solutions.
• Improve Practices: Champion high engineering standards, from refining CI/CD pipelines to minimising technical debt.

• Python Expert: Extensive experience in backend software engineering with Python.
• Claude Code
  
  Experience:
  
  Practical experience adopting and integrating agentic AI coding practices (such as Claude Code) and LLM workflows into daily development to improve workflow efficiency while managing token consumption and API costs.
• UML Modeling
  
  Experience:
  
  Proven capability in translating high‑level architecture into detailed low‑level designs using UML modelling techniques, such as sequence, class, or component diagrams, to align engineering squads and mitigate technical risk.
• SOLID Craftsmanship: Deep understanding of clean code and SOLID principles, with a demonstrated ability to practically apply these standards during peer code reviews to spot design anti‑patterns and improve system reliability.
• Test‑Driven Expert: Advanced expertise in test‑driven development and structuring robust unit and integration tests to ensure that high‑volume microservices can be safely and continuously deployed without risking production downtime.

• Leadership
• Delivering at pace

• Information security
• Systems design (lead success profile – assessed via test during interview)

• Discretionary non‑contractual performance‑related bonus
• Working remotely in addition to working in advertised office location
• Minimum 25 days annual leave to a maximum service related 30 days excluding bank holidays