Senior Backend Developer

Design, build, and maintain scalable backend services for Keepnet’s Human Risk Management platform.

• Build clean, modular APIs that integrate internal services and third-party systems to enable automation, reporting, and security workflows.

• Develop testable, maintainable codebases using principles such as Clean Architecture, DDD, and TDD.

• Own the full development lifecycle: design, implementation, CI/CD (Azure), and post-release monitoring.

• Work on distributed and asynchronous systems using message queues, background workers, and event-driven workflows.

• Use observability signals (logging, metrics, tracing, tools like Sentry) to proactively detect, diagnose, and prevent production issues.

• Collaborate closely with frontend, product, and customer-facing teams to deliver features that solve real customer problems.

• Participate in Agile ways of working, focused on iteration, ownership, and continuous improvement.

Do you have experience in SQL?, Extensive experience building backend systems with .NET (typically 8+ years, though we care more about demonstrated depth than years).

• Strong understanding of API design, distributed systems, and asynchronous architectures.

• Experience with SQL and NoSQL databases (PostgreSQL preferred), caching, and queuing systems.

• Familiarity with cloud environments and DevOps practices (Azure preferred).

• Comfortable working on production SaaS platforms, with ownership beyond deployment.

• Experience using AI-assisted development tools (e.g. Cursor or similar) to support code exploration, refactoring, testing, or design discussions - while maintaining strong engineering judgment.

• A strong sense of ownership and production accountability, including monitoring, debugging, and continuous improvement.

• Ability to understand product and business context, making pragmatic technical decisions that balance user value, risk, and long-term goals.

• A security-conscious mindset, building systems that are secure by design.

Pulled from the full job description

• Annual leave
• Sick pay
• Company pension

• Cycle to work scheme, Salary: £55,000 - £65,000 per annum, depending on experience, At Keepnet, engineering is about craft, collaboration, and impact. What you can expect:

• Hybrid working: a balance of in-office collaboration and remote focus time.

• Thoughtful engineering: time and space to design systems properly, not just ship quickly.

• Global context: work on a multinational SaaS platform used across multiple regions.

• AI-first environment: AI-assisted development and production-grade AI systems are part of everyday work.

• Annual leave: 25 days (+1 per year of service), plus bank holidays.

• Workplace pension scheme with employer contributions.

• Health & well-being: gym support and cycle-to-work scheme.

• Team culture: monthly team lunches and quarterly offsites.

• Continuous learning: learn from experienced peers and grow your skills over time.

Why This Role Is Different

This role is for engineers who:

• Care about system design and long-term maintainability.

• Enjoy working with experienced peers who challenge each other constructively.

• Prefer preventing incidents over reacting to them.

• Want to build software used by real customers at real scale.

• Believe good engineering is as much about ownership and judgment as it is about code.