Lottie

Role Description Lottie's marketplace connects millions of families with the right care at the right time. We're looking for a Senior Growth Engineer to join a small, focused Marketplace team and own the full experiment loop - from hypothesis to code to result. You'll work closely with a PM and designer to run high-velocity tests, feed signal back to Google to sharpen our ad performance, and build the lightweight tooling that lets us learn faster than our competitors. This is a role for someone who ships first, learns fast, and doesn't look back. If you need things to be perfect before they go live, this probably isn't the right fit. What does this role involve? - Running end-to-end experiments across Lottie's marketplace, from ideation through implementation to result analysis. - Building and optimising conversion-focused front-end experiences, often with limited design input. - Writing code that sends performance data back to Google to improve ad targeting and campaign efficiency. - Automating parts of our Google Ads configuration and campaign management. - Owning A/B test pipelines and iterating quickly based on real usage data. - Working autonomously within a lean, fast team. What problems will you be solving? - Turning traffic into outcomes. - Making our ad spend smarter. - Moving fast in a space that matters. Qualifications - 5+ years of software engineering experience, front-end leaning with genuine full-stack breadth. - You think in experiments and can articulate what moved because of your work, not just what you built. - Comfortable with throwaway work; when a test fails, you kill it and move on. - Autonomous and low-dependency; thrive with a hypothesis and a deadline, not a detailed spec. - Data-driven; define success before you build and look at the numbers before declaring a win. - AI tools like Claude Code are already a big part of how you work, and you’re hungry to get better at them. Requirements - Sound like you but not quite 100%? Apply anyway - we're looking for potential and passion, not perfect CV match! This role isn’t for you if… - You prefer depth over breadth and one big build over many small bets. - You need clearly scoped requirements before you can move. - You're looking for a team with lots of process and structure around you. - Our mission to transform later life care doesn't resonate with you. Interview Process - Intro call with our Talent Lead (20 min, remote). - Engineering Manager interview (45 min, remote). - Technical assessment: coding pairing session and 2nd session (1h each, remote). - Behavioural interview with Hiring Manager (45 mins, remote). - Final interview with Will Donnelly, Co-Founder & CEO (30 mins, remote). Candidate Experience - All candidates will be informed of their application status. - Pre-Screen & First Interview: You'll receive an email notification, but no specific feedback will be provided at this stage. - Hiring Manager Interview: If you are unsuccessful after this interview, you will receive constructive feedback via email. - Technical Interviews: If you are not successful after these, you'll receive constructive feedback via email and be offered a debrief call with our Talent Lead. - Final Interview: For final-stage candidates who are not offered the role, we will provide your feedback live via a phone call. Why Lottie? - A rare chance to own the full growth loop with real autonomy and real impact from day one. - Be an early hire at one of the UK’s fastest growing startups and benefit from fast career progression, as well as a generous stock options package. - Tech for good that aims to build the care industry of the future and to positively impact millions of people's lives. - Series A backed startup having raised £25m+ from tier 1 venture capital investors including Accel and General Catalyst. - Be part of a company that is solving a real tangible problem that every family around the world faces at some point in their life. - Join a kind, talented and mission driven team that loves coming to work every day. - Excellent employee compensation/benefits, remote policy and outstanding company culture with a 4.9/5 employee review score on Glassdoor. - Acclaimed winner of LinkedIn’s 2024 “Top Startups” and named “the UK’s number one startup for 2025” in Startup.co.uk 100 Index.

• Own the end-to-end design quality of Marketplace • Partner with PM from problem inception; shape briefs and bring evidence to decisions • Work across a high-stakes domain considering accessibility and trust signals • Contribute to the design system with scalable patterns and components

• Owning the technical roadmap for Eliza and our AI agents product line. • Coding alongside the team — a hands-on leadership role. • Building and line managing a team of product engineers. • Sharing the product hat with our GM, supported by our CPTO. • High bar on both speed and quality, balancing between the two depending on context. • Deepening Eliza's integration with Found.