Senior Software Engineer - AdTech Bidding Platform / Traffic Shaping Specialist

Nexxen
Bellevue
Workplace: HybridFull timeUSD 175,000 - 200,000 annuallyFunction: Software EngineeringSkills: ["Curiosity","Learning fast","Reason from first principles","Attention to performance","Critical review","Generalist problem-solving"]

Build and optimize a real-time ad exchange bidding system that decides in milliseconds what traffic to forward. You’ll work across the full stack—Node.js bidder logic, analytics-to-throttle bridging, SQL pipelines over billions of events, and interpretable gradient-boosted ML models that turn ranking insights into low-latency rules.

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Nexxen
Nexxen
1 month ago

Senior Software Engineer - AdTech Bidding Platform / Traffic Shaping Specialist

✓ Verified Job

Canonical indexed version, validated from employer's careers page.

Source: Company careers pageValidated by: Fursa AI
Last checked: 8 hours agoStatus: Live

Job Summary

Build and optimize a real-time ad exchange bidding system that decides in milliseconds what traffic to forward. You’ll work across the full stack—Node.js bidder logic, analytics-to-throttle bridging, SQL pipelines over billions of events, and interpretable gradient-boosted ML models that turn ranking insights into low-latency rules.
Location: Bellevue
Workplace: Hybrid
Employment Type: Full time
Job Function: Software Engineering
Seniority: Mid level

Key Responsibilities

  • •Develop the real-time bidder (Node.js) that routes requests to demand partners with near-zero-latency throttling.
  • •Build the traffic-performance aggregation job that produces the throttle layer bridging analytics to live bidding.
  • •Design and operate data pipelines and SQL analytics over billions of bid requests and impressions.
  • •Implement applied machine learning (gradient-boosted, interpretable models) to rank request features predicting bids.
  • •Turn ML findings into real-time rules the bidder can use to smarterly decide what traffic to send.

Pay and Benefits

Salary: USD 175,000 - 200,000 annually
Perks:Health InsuranceDentalVisionDisability Insurance401kEapParental LeavePaid Leave

Key Requirements

  • •Write and reason about production code with attention to performance and correctness.
  • •Have expertise in at least one backend programming language and distributed systems.
  • •Be fluent in SQL (or eager to become fluent) and enjoy working with large datasets.
  • •Have experience with AdTech/RTB and real-time/low-latency systems, plus exposure to columnar databases, A/B testing, or ML tooling.
  • •Use AI coding tools fluently as part of the workflow—directing, reviewing outputs critically, and speeding up through unfamiliar territory.
Experience:AdtechRTBReal-time systemsLow-latency systemsDistributed systemsA/B testingMachine learning
Skills:CuriosityLearning fastReason from first principlesAttention to performanceCritical reviewGeneralist problem-solving
Tech Stack:Node.jsSQLMachine learningGradient-boosted modelsColumnar databasesA/B testingAI coding toolsClaude CodeCopilotChatGPT

Company Brief

Nexxen
Nexxen is a global advertising technology company offering a unified platform for programmatic advertising, data management, and Connected TV solutions, serving advertisers, agencies, publishers and broadcasters worldwide.
Industry: Enterprise Software
Company Size: Large (251 to 1,000 employees)
Growth: Public Company
Valuation: Public Company (Market Cap in USD)
Funding: IPO / Publicly Listed
Headquarters: New York, United States
Founded: 2007
Glassdoor
Glassdoor: 3.6
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