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

LoopMe uses AI to change how brand advertising is bought, measured, and optimised. Where most adtech platforms optimise for impressions or clicks, we optimise for what actually matters to brands — awareness, purchase intent, foot traffic, and sales. Our outcomes-based approach consistently delivers 2–5x the performance of industry benchmarks, which is why the world's leading brands, agencies, and publishers work with us.

We've grown at 40% CAGR every year since 2018, generating over $2 billion in cumulative gross revenue, and we're building toward $1 billion in annual revenue. That growth is powered by a 400-person global team across 19 cities — and by commercial talent that knows how to sell something genuinely differentiated in a crowded market. If you want to represent a product that wins on results, not relationships alone, this is the right place.

The opportunity

You join the Supply Operations team as a specialist owning the day-to-day health of LoopMe's Supply Side Platform — from publisher integrations and technical troubleshooting to invoicing, reconciliation, and cross-functional process improvement. You partner closely with Account Management, Product, Finance, and Commercial teams to scale operational workflows and raise the standard of the publisher experience.

What you'll do

• Own technical troubleshooting for supply integrations, supporting account managers and publishers on the LoopMe SSP.
• Represent Supply Operations in cross-functional projects shaping company-wide supply growth and monetisation initiatives.
• Partner with Product, Finance, and Commercial teams to improve supply-side processes, integrations, and reporting infrastructure.
• Manage invoicing, reconciliation, and payment cycles with a focus on accuracy and operational excellence at scale.
• Build and maintain documentation, playbooks, and best-practice guides to standardise workflows across the team.
• Drive proactive identification of common supply-side issues and develop solutions to prevent recurrence.

What you'll bring

Essential

• 1+ years of experience in ad tech or ad operations, preferably in a supply-side or publisher-facing role.
• Working knowledge of programmatic advertising and ad serving fundamentals.
• Analytical rigour with advanced Excel or BI tool skills; you're comfortable working with data to diagnose and resolve issues.
• Clear, confident communication skills with the ability to manage stakeholder relationships across commercial and technical teams.
• Fluency in English, written and spoken.

Nice to have

• Direct experience with a Supply Side Platform or publisher monetisation tools.
• Familiarity with finance operations processes such as reconciliation or invoice management.
• Experience building or maintaining internal documentation and operational playbooks.

What we offer

• Flexible working schedule
• 1 month work-from-anywhere
• Annual performance bonus
• English classes
• LoopMe Gives Back
• Learning & development support

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 own test automation for LoopMe's Android and iOS SDKs, building and maintaining the suites that determine how fast and confidently we ship. Working alongside our existing automation engineer, you'll integrate deeply with the CI/CD pipeline using GitHub Actions, BrowserStack, and Maestro, and extend coverage as new SDK projects come into scope. This role sits within the Mobile SDK engineering team.

What you'll do

• Build and maintain automated test suites for Android and iOS SDKs using JavaScript, Rust, and Bash/Shell scripting
• Develop mobile UI automation using Maestro across Android and iOS SDK projects
• Integrate automated tests into GitHub Actions CI/CD workflows for nightly smoke, regression, and Adapter Certification runs
• Own test execution and monitoring via BrowserStack App Automate, debugging environment-specific failures across devices and infrastructure
• Manage and publish test results through Allure Reports, surfacing findings to developers via JIRA and Slack
• Drive down nightly test run time by parallelising suites across multiple GitHub Actions runners
• Manage test builds via Firebase App Distribution for Android and iOS
• Leverage AI tools, including Claude, to accelerate test development and improve coverage and resilience

What you'll bring

Essential:

• 4+ years in automation engineering, or 2+ years as an SDET or developer
• Strong JavaScript skills applied to test automation
• Proficiency in Bash and Shell scripting, and GitHub Actions for CI/CD integration
• Experience with BrowserStack or a comparable real-device cloud platform
• Proficiency with Maestro for mobile UI automation, Allure Reports, and JIRA

Nice to have:

• TypeScript familiarity
• TestRail or an equivalent test management system
• Charles Proxy for network traffic analysis
• Experience with AI-assisted test generation or self-healing frameworks
• Rust programming experience
• Adtech or programmatic advertising domain knowledge

What we offer

• Flexible working schedule
• 1 month of work-from-anywhere
• Annual performance bonus
• English classes
• LoopMe Gives Back
• Learning & development support