Principal Software Engineer / Sr. Principal Software Engineer

  • 601 Marshall St, Redwood City, CA 94063, USA
  • Full-time
  • Department: Development: General Development

Company Description

“PubMatic delivers superior revenue to publishers by being an SSP of choice for agencies and advertisers. PubMatic’s cloud infrastructure platform for digital advertising empowers app developers and publishers to increase monetization while enabling media buyers to drive return on investment by reaching and engaging their target audiences in    brand-safe, premium environments across ad formats and devices. Since 2006, PubMatic has been expanding its owned and operated global infrastructure and continues to cultivate programmatic innovation. With a   globally distributed workforce and no corporate headquarters, PubMatic operates 16 offices and eight data centers across North America, Europe, and Asia Pacific.”

Job Description

PubMatic is looking for senior engineers, who can design and implement next generation highly scalable and low latency ad server features at scale of 200 billion+ requests per day in our Ad Server.

If you get excited building applications and architecture to handle 100's of billions of requests per day, managing millions of requests per second with a creative and fast-paced work environment, competitive pay, great incentives, culture of teamwork, smart and friendly colleagues and plenty of opportunity to grow in your career then you should consider applying for this position.


Skills required:

  • Proficiency in the implementation of algorithms and the use of advanced data structures to solve problems in computing. A solid knowledge in the principles of computer science is desired.
  • 5 to 12 years of experience in software design, architecture and development.
  • Good experience in building complex and scalable solutions.
  • Ability to find optimal solutions and innovative ideas.
  • Excellent experience in Golang/C/C++, Linux/UNIX environment.
  • Excellent problem-solving skills.
  • Knowledge of OS and working experience on system programming (multi-threading, multi-processing, memory management)
  • Troubleshoot any issues with existing features, live on production.
  • Ability to write clean, modular and loosely coupled code
  • Ability to understand end-to-end product functionality.
  • Working knowledge of scripting Perl/Python/Shell.
  • Working experience in databases, preferably MySQL.

Roles and responsibilities:

  • Research, learn, design and build highly reliable, available and scalable platforms.
  • Use best practices for software development and documentation, assure designs meet requirements, and deliver high-quality work
  • Demonstrated ability to self-direct and work independently.
  • Demonstrate work ownership and focus to do deliver on time.
  •  Be the owner of one or more functionality module and point of contact for it.
  • Perform code and design reviews for code implemented by peers or as per the code review process.
  • Work with teams to achieve desired goals.
  • Demonstrate timely and excellent verbal and written communication skills.
  • Willing to go extra-mile to achieve greater results


  • BE/ME/B.Tech/M.Tech/BCS/MCS/BCA/MCA/MS in Computer Science or equivalent.

Additional Information

Return to Office: PubMatic employees around the world have returned to our offices via a hybrid work schedule (3 days “in office” and 2 days “working remotely”) that is intended to maximize collaboration, innovation, and productivity among teams and across functions.  All PubMatic employees in the US and India are required to be fully vaccinated to return to our offices.  Covid-19 boosters are not required at this point in time.

Benefits: Our benefits package includes the best of what leading organizations provide such as, paid leave programs, paid holidays, healthcare, dental and vision insurance, disability and life insurance, commuter benefits, physical and financial wellness programs, unlimited DTO in the US (that we actually require you to use!), reimbursement for mobile and internet expenses and fully stocked pantries plus in-office catered lunches 3 days per week.

Diversity and Inclusion: PubMatic is proud to be an equal opportunity employer; we don’t just value diversity, we promote and celebrate it. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.