Staff Backend Developer

We are looking for a Staff Backend Developer to join our Ads team, where we build the real-time systems that power our global advertising platform. This is a high-scale, low-latency environment - processing billions of requests daily to deliver fast, relevant ads to players around the world. Our backend infrastructure is designed for reliability and scalability, ensuring seamless ad delivery and optimal performance even under heavy traffic.

As part of the team, you will work on distributed systems that handle real-time ad requests, impression tracking, and user data analytics with strict requirements for uptime and security. You'll play a critical role in optimizing performance, maintaining service availability, and supporting the development of new monetization features for game developers worldwide. Security, data privacy, and a positive user experience are central to everything we build.You'll help modernize the legacy tech stack and the core services behind ad delivery, bidding, reporting, and analytics.

This is a great opportunity for an engineer who's excited to work on performance-critical systems, collaborate across teams, and grow in a fast-paced environment, all at a turning point in the company.What you'll be doing:Design, build, and modernise backend services and APIs that support ad deliveryWork on scalable, high-availability systems used across our ads ecosystemCollaborate with engineers, product managers, and data teams to deliver new featuresImprove performance, observability, and cost-efficiency of current backend systems, modernising the legacy stack Contribute to architectural decisions and technical direction of the platform.Requirements: Experience building backend services at scaleProficiency in Golang, and relational databases (e.g., MySQL)Familiarity with cloud infrastructure and observability tools (Kubernetes, Ray, etc.)Understanding of API design, distributed systems, and system reliabilityStrong collaboration and communication skills in a remote-first team environmentYou might also have:Experience in ad tech, programmatic advertising, or real-time bidding systemsBackground with infrastructure-as-code (e.g., Terraform)Familiarity with networking, caching, or real-time data pipelines.This position is open to all candidates.