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Senior Software Engineer (Back End)

Engineering | San Francisco, CA | Full Time

Job Description

Position Title: Senior Software Engineer (Back End)

Tapjoy is seeking a Senior Back End Engineer to work on the Risk Management team, responsible for protecting our mobile ad network from fraud and other attacks.


  • Analyzing the traffic patterns of a global mobile ad network for fraud and general patterns of risk

  • Designing and implementing systems and tools for detecting fraud and general patterns of risk across millions of transactions and device interactions

  • Identifying and neutralizing security gaps in company systems and products

  • Keeping existing frameworks and systems up to date with the latest anti-fraud and security advancements and best practices.

  • Working with business teams to monitor and ensure high quality traffic across the ad network

 About You:

  • You have experience as a backend engineer working with large scale production web applications

  • You enjoy working with large datasets to investigate and solve real world problems

  • You're excited to do battle with bad actors attempting to stay under the radar, and you take pride in making a difference by improving the quality of the traffic advertisers are buying.

  • You're a good team player and know how to motivate and help those around you grow

  • You're an effective collaborator, working efficiently with product management and technology teams across sites


  • B.S. or M.S. in Computer Science 

  • 3+ years of Software Engineering experience (preferably in backend systems and working with large datasets)

  • Strong knowledge of data structures, SQL, software design patterns and algorithms (i.e., indexing, hash tables, joins, aggregation)

  • Strongly prefer someone who has had experience with big data platforms and challenges that come with large scale platforms. 

  • Prefer someone who understands general machine learning concepts 

  • Experience with advertising industry is a big plus

Tapjoy is a leading mobile advertising and app monetization company. Our platform empowers advertisers to connect with over 975 million monthly active users through value exchange advertising that drives awareness, engagement and the metrics that matter most to their overall growth. Meanwhile, companies such as Scopely, Crowdstar, Topps and many of the Top 200 grossing app publishers trust our platform to monetize their content, grow their audiences and reward their users. Founded in 2007 and headquartered in San Francisco, Tapjoy is a global organization with more than a dozen offices worldwide.

Tapjoy is an equal opportunity employer. We believe that diversity and inclusion lead to stronger, more innovative teams and better business results; we want to draw from the broadest talent pool possible and encourage qualified applicants. Tapjoy does not discriminate on the basis of sex, race, ethnicity, color, age, sexual orientation, gender (including identity and expression), disability (mental or physical), religion, national origin, citizenship, marital status, military or veteran status, or any other protected classification protected by applicable law; we will provide reasonable accommodations for qualified individuals with disabilities, and pursuant to applicable fair chance ordinances, we will consider for employment qualified applicants with arrest and conviction records.

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