Staff AI Engineer

Salary: £55,000 - 95,000 per year

Requirements:

• 6+ years of software engineering experience in a mid-to-large-size organisation
• Experience of building AI tooling to improve developer experience (devex)
• The ability to influence how people work across multiple teams
• Proven experience building AI tooling used by others in a commercial environment
• Strong full-stack skills in TypeScript
• Frontend skills with Next.js or React to build an interface for engineers
• Strong AI knowledge, including LLMs, embeddings, MCPs, RAG, evals, and agentic platforms
• Experience building infrastructure to support systems in production using IaC, k8s, or lambda functions
• Self-starter who takes ownership end-to-end, from understanding the problem through design and implementation to monitoring and iteration
• Motivated by impact and wants to see work used and making a difference
• Experience with Cloudflare infrastructure
• Experience with monitoring tools such as Datadog, Sentry, or Grafana
• Experience creating guardrails for products such as SLOs and DORA metrics

Responsibilities:

• Build on top of our AI cloud coding agent
• Build the core of our AI harness
• Enable capabilities in these agents for specification, testing, and service reliability
• Work with security and data governance requirements to ensure the agents are secure and have access to the appropriate data
• Enable others to build with AI
• Encourage teams to level up their AI software development processes
• Enable teams to build AI actors that plug into the SDLC
• Help teams measure the impact AI is having on the development process
• Transplant good ideas and processes from one team to other teams in the organization

Technologies:

• Agentic AI
• AI
• Lambda
• Cloud
• Datadog
• Frontend
• Grafana
• Support
• LLM
• RAG
• React
• Security
• Sentry
• TypeScript
• Machine Learning

More:

We are Lendable, on a mission to build the worlds best technology to help people get credit and save money. We are one of the UKs newest unicorns, with a team of just over 700 people, among the fastest-growing tech companies in the UK, profitable since 2017, and backed by investors including Balderton Capital and Goldman Sachs. We have rebuilt the Big Three consumer finance products from scratch—loans, credit cards, and car finance—and are expanding fast across the UK and US. This Staff AI Engineer role sits within our small AI Engineering team in Engineering & Product in London, with a remote working arrangement and flexible working approach tailored to the role. We value ownership, collaboration, shipping and learning over perfection, and working at the frontier of AI tooling with the latest in agentic AI, workflow orchestration, and LLM tooling. We also offer benefits that vary by location and role, including health coverage, retirement and savings support, an employee referral programme, office meals and snacks at select locations, sustainable commuting schemes, socials and connection, and flexible in-office or remote arrangements.

last updated 35 week of 2026