Senior Backend Engineer, Ad Exchange



Software Engineering
Remote · United States
Posted on Tuesday, July 25, 2023

GumGum is a contextual-first, global digital advertising platform that uses advanced AI technology to serve captivating creative ads that drive consumer attention, without the use of personal data. At GumGum, we don’t need to know who you are to deliver relevant and engaging ads that align with your active frame of mind. We believe that a digital advertising industry based on context rather than personal data builds a more equitable and less invasive future for the internet and is better for consumers, publishers and advertisers alike. Our blueprint for the future, The Mindset Matrix™, combines the power of context and creative in digital advertising to deliver superior attention and drive consumer action without sacrificing personal data.

To be a part of this next phase of digital advertising that prioritizes data privacy, please visit

The Ad Exchange engineering team is responsible for the technical implementation and operations of our Ad Exchange technology. The Ad Exchange software handles a high volume of requests (30 million requests per minute) and is a highly distributed Java web service. Our team currently uses technologies such as Java, Spring, MySQL, Kafka, DynamoDB, ScyllaDB, ElastiCache, etc.

This role will focus on maximizing revenue for one of the core business lines for GumGum. You will be responsible for optimizing millions of Real-Time Bidding (RTB) auctions happening in the exchange and implementing various algorithms to increase bid rates from Demand Side Platforms (DSPs), maximize revenue, and reduce the cost of processing inventory impressions. This role requires an extensive knowledge of and experience with AdTech concepts such as RTB, as the team will work closely together to brainstorm ideas and test their theories.

Note: GumGum currently operates in a ‘work from home’ virtual environment with sporadic opportunities for in-person business and morale events (health guidelines permitting). There will not be any requirement to go into the office on a daily basis moving forward. GumGum is only open to hiring remote candidates who are residents in the following states: AZ, CA, CO, CT, FL, GA, IA, IL, IN, KY, MA, MD, MI, NJ, NV, NY, OH, OR, PA, TN, TX, UT, VA, WA, and MN.

What You'll Achieve

  • Design and develop high volume, high traffic web services written in Java, orchestrated with Spring, and using data from MySQL, Scylla (Cassandra) and DynamoDB
  • Engage in technical architecture discussions, solve ambiguous problems, and execute on a solution with a diverse team of engineers across Ad Server, Data, and Web Engineering teams
  • Work directly with cutting-edge machine learning and distributed computing technologies in a highly scalable, cloud-based environment to optimize metrics related to Real-Time Bidding (RTB)
  • Develop traffic-shaping algorithms that will increase the Fill Rate
  • Create algorithms to optimize KPIs such as TMAX, Win Rate, Revenue, Cost and Margin etc.
  • Improve performance of the Ad Server, including reducing RTB Auction Latency, increasing throughput and optimizing AWS cost by leveraging various metrics available for the Ad Server
  • Develop and maintain a deep understanding of the advertising industry to guide decisions about our technical approach and key features to implement
  • Use technology innovatively to implement various ad tech features, privacy frameworks and setup integrations with external partners
  • Collaborate with Product and internal stakeholders to identify, prioritize and develop new features and improvements for our products, as well as provide support for any stakeholder issues
  • Collaborate with other Engineers and Engineering teams outside of Ad Exchange team, ensuring requirements are considered and met for cross team projects

Skills You'll Bring

  • B.S. in Computer Science preferred or equivalent experience.
  • Must have experience in a high volume transaction system > 100k transactions/second
  • Must have experience in AdTech domain with successful implementation of Ad Products at an AdTech company
  • Must have experience with Real-Time Bidding (RTB) in the AdTech domain
  • Experience working with AWS and distributed systems such as Kafka, DynamoDB or equivalent3-5 years of experience as a senior engineer with deep understanding of programming languages (preferably Java and Spring Framework)
  • Experience in taking ownership of end to end product implementation and providing stakeholder updates
  • A history of successfully shipping products related to AdTech RTB into production
  • Excellent communication skills and demonstrated ability to work with cross-functional and distributed teams, including remote collaboration
  • Fast learner with excellent problem-solving skills in highly complex multi-threaded applications
  • Experience with RDBMS systems
  • Experience with Git, Gradle, and CI/CD delivery pipelines
  • Understanding of the Real-Time Bidding protocol (RTB)
  • Organized self-starter with proactive attitude
  • Critical thinker, able to break down complex problems and work with ambiguity
  • Ability to work in fast paced work environment and switch priorities as needed
  • Ability to manage workload
  • Ability to work on multiple projects simultaneously
  • Strong collaborative attitude
  • Proactive in suggesting ideas and potential improvements

Perks & Benefits

  • Medical, Dental, and Vision coverage including 100% premium coverage for employee + spouse/family
  • Flexible Spending Accounts (FSA)
  • Short-Term and Long-Term Disability
  • Paid Parental Leave - Birth parents up to 16-18 weeks. Non-birth parents up to 10 weeks
  • Transitional Return-to-Work Schedule from Parental Leave
  • Dependent Care FSA
  • Maven Family Support - Including fertility adoption and/or travel expenses to obtain medical care
  • Employer-Matched 401(k) Retirement Plan
  • Life Insurance and AD&D
  • Stock Incentive Program (role dependent)
  • Employee Assistance Program
  • Legal and Identity Theft Protection
  • Student Loan Repayment Assistance
  • Work From Home Stipend
  • Wellness Reimbursement
  • Flexible Time Off (Unlimited PTO)
  • Summer Fridays from the 1st Friday of May through the 1st Friday in September
  • Volunteer Time Off
  • Veterinary Discounts (Pet friendly organization - we love our fur babies! IG: @dogsofgumgum)
  • WeWork monthly pass
  • GumGum Gives Back volunteering/social impact opportunities
  • Virtual and in-person company events/celebrations
  • Anniversary recognition and awards
  • Business Travel Accident


  • BuiltIn #37 Best Places to Work 2023 across the United States
  • BuiltinLA #7 Best Places to Work 2022
  • BuiltinLA Best Places to Work 2021
  • Ad Exchanger Programmatic Power Player 2022 and 2021
  • Digiday Media Awards Europe finalist 2022 and 2021

GumGum is proud to be an equal opportunity employer. At GumGum, we believe in cultivating an environment where our team members can bring their authentic, whole selves to work. Encouraging identity and belonging is one of the many aspects of our culture that makes us stronger as an organization and drives innovation. We are committed to building and delivering a diverse, inclusive, and equitable workforce that is representative of the world around us, where all individuals are treated with respect and dignity - and to act swiftly if this value is ever threatened. We are constantly striving to be better, and we continue to take strategic steps to advance representation. - Phil Schraeder, CEO

Learn more about our DEIB programming at

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