Senior Software Engineer

Gum Gum 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 Gum Gum, 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 development team at Gum Gum 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, Scylla Db, 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, Dev Ops, Data Engineering and other teams.

Note:

Gum Gum fosters a flexible work environment, offering Gum Gummers 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.

What You’ll Achieve

• 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, Scylla

DB 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 set up integrations with external partners.

• Contribute to internal documentation, technical blogs, or presentations to elevate engineering visibility and learning.

Skills You’ll Bring

• 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…