Gumgum6d ago

Senior Software Engineer

Santa Monicasenior

EngineeringSoftware Engineer

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Quick Summary

Overview

GumGum is The Mindset Company™ transforming advertising. We’re an advertising technology company delivering results by matching brands with people in the right mindset in the moments that matter.

Technical Tools

EngineeringSoftware Engineer

GumGum is The Mindset Company™ transforming advertising. We’re an advertising technology company delivering results by matching brands with people in the right mindset in the moments that matter. Our platform is powered by the Mindset Graph™, our AI-driven data engine that processes billions of real-time contextual, creative, environmental, and historical signals to match every ad with the most receptive audience. The result is advertising that drives meaningful outcomes for advertisers and publishers, and is more relevant for consumers.

We were founded in 2008 and are headquartered in Santa Monica, California, operating in over 19 markets across North America, Europe, Japan, and Australia.

Our principles guide our work every day and are as follows:

Customer-Obsessed: We’re focused on advertising solutions that solve needs and drive success for clients and partners.
Make it Happen: We have a bias for action and take ownership to deliver results.
Always Innovate: We push boundaries with creativity and technology.
Foster Belonging: We ensure colleagues feel included, supported, and empowered to thrive.

To be a part of The Mindset Company™ transforming advertising, please visit www.gumgum.com/careers.

The Ad Exchange development team at GumGum is responsible for the technical development and operations of our Ad Exchange technology. The Ad Exchange software handles a high volume of requests (40 million requests per minute) and is a highly distributed Java web service. Our team currently uses technologies such as Java, Spring, MySQL, Kafka, Aerospike, ScyllaDb, Memcached, and more.

This role works with product managers and various engineering teams to deliver on priorities for the company, making a significant impact on a key revenue stream for the business. You’ll be expected to take ownership of complex features, mentor engineers, and influence technical direction while collaborating with cross-functional partners across Product, Design, DevOps, Data Engineering and other teams.

Note: GumGum fosters a flexible work environment, offering GumGummers the ability to work either in-office or remotely/from home. For this position, in-person/office collaboration is required 2 days per week, supporting a balanced approach to flexibility and team engagement.

Lead the design, development, and delivery of complex features and high volume, high traffic web services written in Java, orchestrated with Spring, and using data from MySQL, ScyllaDB and Aerospike.
Architect solutions with attention to performance, maintainability, and usability, solve ambiguous problems, and execute on a solution with a diverse team of engineers across various teams such as Data and Web.
Setup integrations with supply and demand side partners.
Understand ML models and integrate new optimization models into Ad Exchange.
Mentor and support junior and mid-level engineers, fostering a culture of technical excellence, knowledge sharing, and continuous improvement.
Write clean, maintainable, and well-tested code following best practices as a model for other team members.Investigate and resolve production issues, ensuring application reliability and performance.
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.
Improve the performance of the Ad Exchange, reducing latency and infrastructure cost.
Take a leadership role in actively reviewing other teammates’ code and provide insightful feedback.
Develop a deep understanding of the advertising industry as required to be able to make decisions about our technical approach and provide our users with more efficient applications.
Use technology innovatively to implement various ad tech features, privacy frameworks and setup integrations with external partners
Contribute to internal documentation, technical blogs, or presentations to elevate engineering visibility and learning.

B.S. in Computer Science preferred or equivalent experience.
6+ years of experience as an engineer with understanding of programming languages, preferably Java and Spring Framework
A history of successfully shipping products into production
Experience in taking ownership of end to end product implementation and providing stakeholder updates
Preferred experience in a high volume transaction system > 100k transactions/second
Experience in Ad Tech, CTV and Real-Time bidding is a plus
Excellent communication skills and demonstrated ability to work with cross-functional teams across timezones, including remote collaboration
Fast learner with excellent problem-solving skills in highly complex multi-threaded applications
Experience working with AWS and distributed systems such as Kafka, Aerospike or equivalent large scale data storage/processing systems
Experience with MySQL or similar RDBMS systems
Analytical thinking and understanding complex logic
An understanding of RTB (Real Time Bidding protocol)
Experience working with Git, Gradle, and CI/CD delivery pipelines

What We Offer

~1 min read

At GumGum, competitive base pay is a part of a total rewards package which also includes benefits, an emphasis on recognition, development, and wellness. The reasonable estimated base pay range for this role is from $186,000-215,000 annually. The actual amount may be higher or lower. Individual compensation will vary based on factors including, but not limited to, relevant qualifications, work location, and labor market conditions.

The total rewards package offered also includes an employer-matched 401(k) retirement plan, and depending on the role, participation in a bonus, commission, or stock incentive program. Your recruiter can share more specifics during the hiring process. Learn more about our U.S. benefits & perks package at gumgum.com/benefits.

2025 & 2026 Digiday Media Awards Europe Best Contextual Targeting Offering
2025 AdExchanger Awards AI Innovators, Technology & Service Provider, Finalist
2025 MARKETECH APAC Marketing Technology Awards Silver Winner for Best Contextual Advertising Tech Platform
2025 Inc. B2B Power Partner
2025 ExchangeWire The Wires Global Best Client Services team winner (GumGum UK)
2025 and 2026 BuiltIn Best U.S. Midsize Companies to Work For