Staff Backend Software Engineer - Performance

What you'll do

• Own the pacer and bidder stack, map it end-to-end and identify fragilities
• Propose improvements to the bidder or pacer autonomously from problem definition to design
• Ship measurable improvements to CPx, pacing accuracy, or win rate within first three months
• Distribute critical system knowledge to make the team faster and less dependent on any single person
• Challenge existing designs and push for cleaner solutions
• Deepen expertise in theoretical foundations such as probabilistic modelling and PID control theory
• Use AI tooling as a force multiplier
• Iterate in production by shipping, measuring, and adjusting

Requirements

• Shipped backend systems in a strongly typed language (C++, Rust, Go, Scala, Java, or equivalent) at production scale
• Debugged distributed systems under real traffic including latency issues and consistency failures
• Experience working inside a DSP, SSP, or bidder with understanding of auction mechanics
• Built or tuned pacing algorithms or PID controllers (theory and implementation)
• Solid grounding in probabilistic reasoning and statistical modelling
• Experience in a scale-up environment
• Experience with ML systems in production including feature pipelines and model serving
• Experience with real-time data pipelines and low-latency architectures at scale
• Experience with Redis, Kafka, or equivalent under meaningful load

Tech stack

Benefits