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'll join a collaborative engineering team building and maintaining LoopMe's suite of self-serve advertising platforms, including our Supply, Exchange, and User Management products. Working across the full stack — Java 25 and Spring Boot on the backend, Angular 21 on the frontend — you'll design APIs and ship UI features used by international clients worldwide.
What you'll do
- Build and maintain backend services and GraphQL/REST APIs powering LoopMe's Supply, Exchange, and User Management platforms
- Develop frontend dashboard solutions in Angular based on newly designed APIs
- Partner with Product Managers to discover, define, and deliver new features for dashboard applications
- Research and evaluate new technologies — including AI-based features — to address evolving business challenges
- Drive improvements to development processes and propose solutions to complex technical problems
- Own unit testing on both frontend and backend to maintain high code quality standards
What you'll bring
Essential:
- 2+ years of commercial frontend development experience, with strong JavaScript and TypeScript skills
- 2+ years of commercial backend development experience, with Java
- Experience with one or more modern frontend frameworks such as Angular or React
- Solid working knowledge of SQL and REST API design
- Basic experience with a cloud platform such as GCP or AWS
Nice to have:
- Experience with E2E testing frameworks such as Playwright or Cypress
- Familiarity with GraphQL on the consumer or provider side
- Experience with gRPC
- English at B2 level or above
What we offer
- Flexible working schedule
- 1 month work-from-anywhere
- Annual performance bonus
- English classes
- LoopMe Gives Back
- Learning & development support
Skills Required
- 2+ years of commercial frontend development experience with strong JavaScript and TypeScript skills
- 2+ years of commercial backend development experience with Java
- Experience with one or more modern frontend frameworks such as Angular or React
- Solid working knowledge of SQL and REST API design
- Basic experience with a cloud platform such as GCP or AWS
- Experience with E2E testing frameworks such as Playwright or Cypress
- Familiarity with GraphQL on the consumer or provider side
- Experience with gRPC
- English at B2 level or above
What We Do
LoopMe, the leading outcomes-based platform, closes the loop on digital advertising. By leveraging AI to optimise media delivery in real-time, we drive measurable uplift for business outcomes and more effective advertising across online and offline marketing goals, including brand lift, purchase intent, consideration, foot traffic and sales. LoopMe's core business helps brands and agencies achieve better advertising results powered by our AI-platform and flagship product PurchaseLoop. LoopMe's marketplace powers more effective supply and demand connections, rooted in programmatic delivery. LoopMe's robust data and analytics measurement suite, including its proprietary household and device graph, brings deep insights to various companies within the advertising industry including podcasting, out-of-home, connected TV, mobile and more. LoopMe was founded in 2012 with the mission to create better consumer experiences through innovation, powered by data, in order to bring people and brands together. The Company is headquartered in the UK, with 15 global offices across New York, Boston, Atlanta, Chicago, Detroit, San Francisco, Los Angeles, Toronto, Singapore, Sydney, Tokyo, Dnipro, Krakow and Hong Kong.
