Senior Software Engineer

Harnham - Data & Analytics Recruitment Careers · South Bermondsey, England ·

115–140k £/yrFull-time
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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 ...

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