Senior Product Engineer London (Hybrid, 3 days)Join a well-funded AI startup building a behavioural intelligence platform for financial services. As an early engineering hire, you'll play a key role in shaping the product, architecture, and engineering culture while working closely with founders and senior leadership. The Company They are developing an AI-powered platform that helps organisations better understand customer behaviour and decision-making. With strong early customer traction and enterprise PoCs underway, they are now scaling their product and engineering capability. The Role
Build and scale LLM-enabled product features from concept to production
Design APIs, backend systems, and AI-powered workflows
Improve model quality through evaluation, monitoring, and guardrails
Optimise token usage, performance, and cost efficiency
Collaborate on product strategy, roadmap, and architecture
Help establish engineering best practices as the team grows
Your Skills & Experience
Strong product engineering background
Experience building and launching an LLM-powered product
Backend expertise, ideally with Node.js and TypeScript
Experience with APIs, cloud infrastructure, and scalable systems
Comfortable operating with autonomy in an early-stage environment
Strong communication and stakeholder management skills
What They Offer
£115,000 to £140,000 base salary
Meaningful equity package
Hybrid working in London
Significant ownership and autonomy
Opportunity to shape a product and engineering function from an early stage
...
Senior Software Engineer employer: Harnham - Data & Analytics Recruitment Careers
As a leading consumer retail organisation based in London, we pride ourselves on fostering a dynamic and inclusive work culture that champions innovation and collaboration. Our commitment to employee growth is evident through tailored development programmes and the opportunity to lead transformative digital initiatives, all while enjoying a competitive salary and bonus structure. Join us to be part of a forward-thinking team that values your contributions and empowers you to drive meaningful change in a rapidly evolving market.
Contact Details:
Harnham - Data & Analytics Recruitment Careers Recruitment Team
