JavaScript (AdTech)

We are looking for a JavaScript Engineer with a strong background in AdTech, specifically with an understanding of DSP/SSP ecosystems. You will join an in-house product team working on building a custom Demand-Side Platform (DSP) with bidding agents. This role requires both hands-on engineering skills and a solid understanding of AdTech architecture, protocols, and real-time bidding systems.

What You’ll Do Contribute to the architecture and development of a custom DSP platform Design and implement bidding agents for real-time ad auctions (RTB) Work with high-load, low-latency systems Collaborate on system design decisions and AdTech integrations Optimize performance and scalability of bidding logic Help shape best practices and technical direction of the product

Requirements Strong experience with JavaScript / TypeScript (Node.js) Proven background in AdTech Understanding or hands-on experience with:DSP / SSP systems RTB (Real-Time Bidding) ecosystem OpenRTB protocol (or similar)

Experience building high-load, distributed systems Solid understanding of system design and architecture Ability to work independently and take ownership

Nice to Have Experience building or scaling DSP platforms Knowledge of bidding strategies / optimization algorithms Experience with:Kafka / RabbitMQ Redis / NoSQL databases Docker / Kubernetes Cloud platforms (AWS / GCP)

Background in performance optimization and low-latency systems

What We Offer Work on a complex in-house AdTech product High level of ownership and influence on architecture No посредників — direct impact on the product Flexible working format