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 features across our SSP, Adserver, and Exchange products — systems that process hundreds of thousands of requests per second and run real-time auctions to match advertisers with mobile audiences globally. You'll join the adserver team, working in functional Scala while helping drive our multi-year transition to Java.
What you'll do
- Own design, implementation, and testing across our SSP, Adserver, and Exchange products
- Drive the migration of core platform components from Scala to Java
- Partner with engineers, architects, and Operations to ship enhancements and resolve issues
- Lead technical discussions and propose improvements to product and process
- Troubleshoot issues across the application, underlying technologies, and infrastructure
- Develop your technical depth continuously across the stack
- Ship quality work on schedule while driving developer productivity org-wide
- Use AI development tools to streamline the product development process
What you'll bring
Essential:
- BS in Computer Science or related field
- 1+ years of Scala programming experience
- 2+ years of Java programming experience
- 6+ years of software engineering experience
- You bring experience designing and implementing microservices in high-capacity, high-traffic, high-availability systems, developed through Agile practice
Nice to have:
- Advertising technology experience
- Experience with Python
- NoSQL databases (MongoDB, Bigtable, Aerospike, etc.)
- Distributed messaging services, like Kafka or PubSub
- Data engineering skills, cloud infrastructure management (AWS or GCP), and familiarity with Git/Bitbucket
What we offer
- Hybrid working — flexible schedule
- 1 month work-from-anywhere
- Annual performance bonus
- Multikafeteria (sport/culture card)
Skills Required
- BS in Computer Science or a related field
- At least 1 year of Scala programming experience
- At least 2 years of Java programming experience
- At least 6 years of software engineering experience
- Experience designing and implementing microservices in high-capacity, high-traffic, high-availability systems
- Experience working in an Agile environment
- Advertising technology experience
- Python experience
- Experience with NoSQL databases such as MongoDB, Bigtable, or Aerospike
- Experience with distributed messaging services such as Kafka or PubSub
- Data engineering skills
- Cloud infrastructure management experience with AWS or GCP
- Familiarity with Git or Bitbucket
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.
