Chief Software Engineer (AdTech)

Description

Summary: Seeking a Chief Software Engineer (AdTech) to lead technical direction across ad serving, SSAI, RTB, and identity while staying hands-on and mentoring senior engineers. Highlights: 1. Lead technical direction across ad serving, SSAI, RTB, and identity 2. Architect and implement hot-path code as an individual contributor 3. Coach engineers and raise standards on code review and production rigor We are looking for a **Chief Software Engineer (AdTech)** to design and ship ultra\-low\-latency ad serving systems that run on the hot path. You will lead technical direction across ad serving, SSAI, RTB, and identity while staying hands\-on in code and mentoring senior engineers. Apply now to help maximize auction economics by balancing latency, cost, and correctness. **Responsibilities** * Architect and implement hot\-path code as a hands\-on individual contributor * Define technical direction for ad serving, SSAI, RTB and identity through design docs you author, defend, and revise as constraints change * Coach engineers by raising the standard on code review, production rigor, and how the team evaluates latency, cost, and correctness * Own auction\-level economics and quantify the revenue\-per\-thousand\-impression impact of latency and AWS spend on the ad path * Represent the company's technical stance with partners such as GAM, SSPs, DSPs, measurement vendors and IAB Tech Lab * Set hiring standards for future engineers and participate in the loop for every senior\+ AdTech hire * Drive production ownership for systems that serve hundreds of millions of ad requests per day * Make and stand behind decisions to reject features that threaten latency, correctness, or unit economics **Requirements** * 7\+ years of professional software engineering experience, including 5 years within an SSP, DSP, ad server, ad exchange, or CTV/OTT platform * Demonstrated production ownership of a platform serving at least hundreds of millions of ad requests per day * Deep expertise in at least one hot\-path systems language (Go, Java, C\+\+ or Rust), plus practical comfort in another * Strong fluency in JavaScript, Node.js and TypeScript for tooling, control\-plane services, and the Prebid wrapper layer * Working\-spec\-level mastery of OpenRTB (2\.x and 3\.x), VAST (3 and 4\), VPAID, VMAP and SIMID * Hands\-on SSAI experience covering pod construction, manifest manipulation, ad stitching, and failure modes when delivering ads in HLS or DASH * Proven background in header\-bidding architecture, including Prebid.js client\-side, Prebid Server, wrapper design, and price\-floor strategy * Engineer\-level command of Google Ad Manager APIs, the line\-item and key\-value model, and known abstraction edge cases * AWS at\-scale experience with EC2/EKS, ECS and Lambda, plus DynamoDB, Kinesis, MSK/Kafka and CloudFront * Solid distributed systems knowledge across queueing theory, backpressure, idempotency, hot\-key mitigation and multi\-region failover * Strong FinOps instinct with clear understanding of stack cost per thousand ad requests * Practical ability to use React where it intersects with ad\-ops surfaces * Advanced proficiency in English (C1\+) **Nice to have** * Experience with FinOps Platforms * Strong Golang and distributed systems expertise