About the Role
The Senior Scala Developer will join the core engineering team in Poland to scale, optimize, and evolve a real-time ad platform processing over 41.5 billion daily ad requests from more than 262 million unique users worldwide.
Responsibilities
- Design, build, and maintain scalable backend systems using Scala.
- Work closely with engineers, data scientists, and product managers to define requirements and deliver high-impact features.
- Improve system architecture, performance, and resilience under failure conditions.
- Conduct code reviews, promote best practices, and support team-wide technical growth.
- Engage in technical planning and actively influence the direction of the platform’s development.
Work Arrangement
Hybrid
About BidMachine
BidMachine is a high-speed ad exchange that connects mobile applications with advertisers in real time. It processes ad requests, runs auctions, and serves winning ads in less than 200 milliseconds. The platform manages over 41.5 billion ad requests daily from more than 262 million unique users globally. We are seeking a Senior Scala Developer to join our core engineering team in Poland and help advance our real-time bidding infrastructure.
Why Appodeal?
We are a mission-driven team focused on helping individuals discover and develop their strengths. We value continuous learning, personal growth, and meaningful career development. Our work aims to shape the future of the mobile advertising industry. We solve complex technical challenges with support from experienced mentors. We also believe in enjoying the process as we work toward ambitious goals.
Why Join Us
Work on a large-scale, high-throughput system that processes billions of real-time requests every day. Be part of a team that prioritizes engineering quality, knowledge exchange, and independent ownership. Contribute to a collaborative, data-informed environment where innovation is welcomed and ideas are valued. Enjoy flexible work options, including hybrid or remote arrangements within Poland.
Other
Flexible work setup — hybrid or remote within Poland.


