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Senior Engineer (Back-end)

Engineering | Seoul, South Korea | Full Time

Job Description

Join the Mobile Future with Tapjoy

Tapjoy is a creative workplace, comprised of people with different backgrounds, cultures, skill sets, and global perspectives. With offices all over the globe, Tapjoy provides mobile engagement and monetization services for leading advertisers and app developers. Advertisers rely on Tapjoy's diverse suite of rewarded Interplay™ ads including video and rich media to impact performance. Developers utilize our technology and mobile expertise to acquire and monetize users. The Tapjoy SDK is currently embedded in over 20,000 mobile apps, reaching 620 million monthly active users. Additionally, Tapjoy works with Fortune 500 brands and the Top 200 grossing app developers.

Here at Tapjoy, we promote a Joyful, Engaged, Trustworthy, and Innovative workplace with our company core values, and regularly celebrate and recognize the people who embody our values. Tapjoy believes its people are its greatest investments and we take extra care to support your time inside and outside of work with a multitude of benefits. In order to maintain what makes us so special here, we are committed to continued education and involvement in our community to protect and expand our one-of-a-kind workplace.


Join the Mobile Science with Tapjoy
 

We ignite the science of data and engineering to maximize mobile engagement and monetization for leading advertisers and app developers. Our mission is to revolutionize mobile engagement and monetization. By using cutting edge technology, and nearly a decade of experience, we help our advertising and app developer partners power up their performance. 

Tapjoy is a creative workplace, comprised of people with different backgrounds, cultures, skill sets, and global perspectives. With offices all over the globe, Tapjoy provides mobile engagement and monetization services for leading advertisers and app developers. Advertisers rely on Tapjoy's diverse suite of rewarded Interplay™ ads including video and rich media to impact performance. Developers utilize our technology and mobile expertise to acquire and monetize users. The Tapjoy SDK is currently embedded in over 30,000 mobile apps, reaching over 800 million monthly active users. Additionally, Tapjoy works with Fortune 500 brands and the Top 200 grossing app developers. 

Here at Tapjoy, we promote a Joyful, Engaged, Trustworthy, and Innovative workplace with our company core values, and regularly celebrate and recognize the people who embody our values. Tapjoy believes its people are its greatest investments and we take extra care to support your time inside and outside of work with a multitude of benefits. In order to maintain what makes us so special here, we are committed to continued education and involvement in our community to protect and expand our one-of-a-kind workplace. 

Position Title: Senior Engineer (Back-end) 

Position Description / Responsibilities: 

Tapjoy is seeking a Senior Backend Engineer who will work closely with Data Scientists, Data Platform and Ad Server Engineering teams to help productionize, scale and support Tapjoy's Optimization platform. We are looking for someone with experience working with vast amounts of data, service scaling and low-latency applications. 

Essential duties and responsibilities may include, but are not limited to: 

  • Design and create a robust Data Processing Platform with high throughput 
  • Work on a scalable, personalized ad-serving algorithm REST service API 
  • Research and innovate on Big Data platform stack (Spark, Kafka, Aerospike and many others)

Core Competencies include: 

  • Strong Computer Science fundamentals, including knowledge on data structure, algorithm and object-oriented design 
  • Have experience with or interest in Java, and interfacing with REST APIs 
  • Is self-directed and self-driven
  • Is results-oriented with a high emphasis on "on-time" delivery of projects and features 
  • Values collaboration with various teams and stakeholders 
  • Communicates often and well about potential roadblocks and tradeoffs between performance and complexity

Requirements:

  • B.S. or M.S. in Computer Science 
  • 3+ years of Software Engineering experience (preferably with Java) 
  • Strong knowledge of data structures, SQL, software design patterns and algorithms (i.e., indexing, hash tables, joins, aggregation)
  • Knowledge of low-latency, high-throughput services
  • Strongly prefer someone who has had experience with big data platforms and challenges that come with large scale platforms. 
  • Prefer someone who understands and experiences ETL processes and concepts 
  • Prefer someone who understands general machine learning concepts 
  • Experience with advertising industry is a big plus

Tapjoy is a one-of-a-kind workplace, comprised of people with different backgrounds, cultures, skill sets and global perspectives. In order to maintain what makes us so special here, we support work-life balance both inside and outside the office in many ways.

If you want to learn about building an amazing team with industry-leading technology, you want to surround yourself with brilliant, passionate entrepreneurial teammates at Tapjoy.

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.

For more information, please visit www.tapjoy.com.