Nexxen
Senior Software Engineer - AdTech Bidding Platform / Traffic Shaping Specialist
Bellevue, WA · Senior · Full-time
Stay score
odds of building a lasting career here
Sponsors, but it's cap-subject — you still face the weighted lottery (~61% per draw at Level IV). Good if you win; have a cap-exempt backup on your list.
Lottery odds assume a STEM candidate.
Personalize to your clock →H-1B wage level
the lottery is wage-weighted — each level is one more entry
Level IV starts at $206,086 — $31,086 above the bottom of this range, and above its posted ceiling.
DOL prevailing wage, 2026-27 wage year · Software Developers (15-1252) · Seattle-Tacoma-Bellevue, WA. Wage level is derived by USCIS from the offered wage, occupation and worksite; the occupation shown is inferred from the job title.
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About the role
- Much of the traffic doesn't get bid on, wasting load on both sides.
- Your job is to make the system smarter about what to send where.
- Few engineering roles let one person see a problem from the hot path to the model and back.
Responsibilities
- Every ad request that hits our exchange runs through a real-time auction: a bidder decides, in milliseconds, whether to ask our demand partners to bid.
- A lot of what we build, from data exploration to model code, is done by steering AI and rigorously checking its output.
- The real-time bidder (Node.js) that decides which requests to forward to demand partners, and the throttling layer that acts on those decisions with near-zero latency.
Requirements
- Each day can be different here at Nexxen, but some of the things you can expect to be doing daily are:
Compensation
- In support of pay transparency and equity, the minimum and maximum full-time annual base salary for this role is $175,000 - $200,000 the time of posting, with the potential of an incentive or bonus.
Benefits
- Applied machine learning: gradient-boosted models with interpretability to rank which request features predict a bid, then turning those findings into real-time rules the bidder can use.
Company info
- We are aware of the growing number of online scams and fraudulent job postings, and we urge all job seekers to remain vigilant.
This listing is sourced directly from Nexxen's careers page and normalized into a canonical job model.