Solutions Engineer, Supply

About LoopMe LoopMe is an AI company solving one of advertising's hardest problems: making brand advertising actually measurable — and making it perform. Our platform runs patented machine learning models across billions of consumer signals in real time, optimising campaigns toward outcomes like purchase intent, brand lift, and foot traffic rather than proxy metrics like clicks. The result is 2–5x better performance than industry benchmarks, at scale. We operate a high-load programmatic infrastructure — processing millions of ad requests per second with sub-200ms response times globally. This isn't a layer on top of someone else's stack; it's built from the ground up, in-house, by the team you'd be joining. Founded in 2012 and headquartered in London, we now have 400+ people across 19 cities and have sustained 40% revenue CAGR since 2018. The engineering problems here are real, the ownership is genuine, and the scale is significant. The opportunity You join LoopMe's global Marketplace team in London, sitting at the intersection of technical delivery and commercial performance. You own publisher integrations end to end from onboarding through to live deployment while ensuring our Business Development and Account Management leads have the tooling, insights, and technical support they need to operate at their best. This role reports to the Support Manager, Americas. What you'll do Lead the end-to-end integration process across SDK, oRTB, VAST, and web tag implementations Lead all technical communication with key client accounts throughout the integration lifecycle, ensuring a seamless publisher experience Troubleshoot and resolve integration challenges, liaising directly with third-party providers to maintain smooth operations and minimise disruption Partner with Product, Supply, and Data Science teams to identify friction points and drive continuous improvement in integration processes and tooling Use SQL and data tooling to surface insights that support commercial team performance and inform technical decision-making Manage day-to-day client service across assigned publisher accounts, maintaining strong relationships and clear communication throughout What you'll bring Essential Experience in technical support and integrations at an AdTech company Working knowledge of web technologies and at least one programming language — JavaScript, Python, PHP, or mobile equivalents Confidence querying and analysing data using MySQL, MS-SQL, or equivalent tools to diagnose and resolve integration issues A solid understanding of programmatic advertising, including campaign trafficking and pixel implementation Nice to have Experience managing publisher-facing relationships or portfolios Familiarity with supply-side or marketplace dynamics in programmatic Hands-on experience with SDK and app integration support, including familiarity with oRTB, VAST, and web tag workflows What we can offer Bonus Hybrid working; meaning you'll…