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Sr/Lead RTB Data Science Engineer

Technology | San Francisco, CA | Full Time

Job Description

Sr/Lead RTB Data Science Engineer

Sojern - San Francisco


Launched by leaders from Yahoo, Bluekai, Orbitz, Amadeus, Sabre, Avis, American Airlines and Adobe, Sojern is building the world’s leading data driven traveler prediction and optimization platform. We win with our tightly tuned data strategy synchronized with our vertical sales focus. Work with a dynamic and flexible team whose laser focus on success provides opportunities for all. Join us and together we can win the digital travel space.

In our SF office we’re in an airy loft in SOMA centrally located to all transportation. Our campus is SF and that can’t be beat. We have offices in the SF, Omaha and UK; enjoy working in a distributed team in the global travel space. We offer competitive salary, equity, benefits, unlimited vacation days, equipment of your choice, fantastic coworkers, well-stocked kitchen, and team/community events.


This is a real time bidding, data mining, game theory, auction strategy, allocation maximization, engineering position. Phew, out of breath.

We look for the best team players that want to join our band and mesh with our growing team.


  • Work on the core ad serving system applying pricing models to maximize ROI and yield

  • Ensure top system performance as every ms of latency reduces auction position.

  • Mine the bid stream to build models for optimal pricing strategies

  • Develop multiple bidding strategies to meet advertiser goals; across mobile, tablet, web, tv…

  • Mine the data for latent bidding strategies; see patterns where others see noise, create novel approaches to leverage our deep traveler intent data

  • Express your ideas, absorb other people's, influence the team, and grow with the team

  • Contribute to the daily Engineering team ritual of conquering the NY Times crossword puzzle

Desired Skills & Experience

Required Skills:

  • 5+ years production experience in: Java

  • Firm foundation in C, C++, Linux that gives solid system performance level insights.

  • 5+ years experience building distributed, high availability services

  • Experience in team based development, deployment and iteration

Preferred Skills:

  • Experience with real time online pricing/auction learning systems.

  • Knowledge of advertising technology, business and practices

  • ML / stats background and mind set, or desire to acquire said.


  • BS/MS/PhD one of: CS, ML, Applied Math, Physics or practical equivalent