Tech Lead, JavaScript Engineering

Santa Monica, California, United States

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 Tech Lead, JavaScript Engineering works with a team of frontend and backend software engineers that build and maintain a variety of web applications and JavaScript libraries. This role will have a real impact working on apps and libraries used every day across the company, and will lead a team that prioritizes skill sharing and learning. The team currently uses technologies such as JavaScript, React, and AWS Amplify. 

This role will lead their team to success, planning and executing projects across the stack by defining technical requirements, estimating level of effort, scoping projects to meet deadlines, and managing agile processes. The Tech Lead will work closely with product owners, engineering teams, and other stakeholders to deliver projects on time and with high quality. This will require identifying and resolving risks and blockers, reviewing code, and providing architectural guidance to ensure scalable, maintainable solutions.

The Tech Lead will also begin to develop management and leadership skills, fostering relationships with their team and others they work with, setting best practices, giving feedback, playing an active role with hiring and training, and fostering a deep knowledge of the business.

What You'll Achieve

Leadership and Impact

  • Sets best practices and guidelines for the team along with their manager.
  • Proactively establishes and maintains relationships with stakeholders to answer any questions. Effectively triages problems, and keeps stakeholders informed in a positive manner.
  • Conducts design and code reviews of all complexity and is able to guide architectural decisions.
  • In general takes ownership of the system(s) and is involved in all aspects of it.
  • Helps provide the architectural roadmap for the system(s).
  • Keeps up to date with standards and new tools in the industry and passes on the knowledge to the team.
  • Experiments with new frameworks and tools that will help improve the system(s).
  • Works with others to find creative solutions to customer issues.

People Leadership

  • Does occasional 1:1s with team members to check in and see if there are any team issues or processes that can be improved.
  • Surfaces potential improvement areas for the team to their manager.
  • Gives thoughtful feedback to team members and writes insightful 360 reviews.
  • Supports the implementation of new team processes by exemplifying these processes and actively facilitating team adaptation and engagement.
  • Conducts interviews with new candidates, often leading interviews.
  • Assists manager w/ hiring process improvement suggestions such as updating existing hacker rank tests, coding/pair-programming questions and/or design questions.
  • Works with their manager in identifying appropriate and relevant training needs for the team.

Product Development and Project Management

  • Works with their team and their manager to prioritize critical projects and ensure their completion. Knowledgeable of their team's capabilities to distribute work amongst team members based on their bandwidth / skills to ensure project timelines are met.
  • Manages the agile process if applicable. Leads scrum related meetings such as stand up, sprint planning, and retro.
  • Helps define technical requirements and accurate level of effort for stakeholder asks. Breaks down large initiatives into actionable Jira tickets for the team.
  • Handles the assignment of work for their projects and team, also keeping in mind prioritization.
  • Represents the team in check-in meetings and provides status updates.

Skills You'll Bring

  • Computer Science degree is a plus, but not required
  • 5+ years of software experience
  • Technically strong, with a history of successfully shipping products into production
  • Experience coaching and mentoring team members
  • Demonstrated ability to work with cross-functional teams, from engineering to product to stakeholder teams
  • Core understanding of web applications, including overall front end architecture and APIs concepts, as well as vanilla JavaScript
  • Ability to break down a request into actionable tasks
  • Familiarity with the technologies the team uses (JavaScript, React, AWS Amplify)

 

What We Offer

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, a 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.

Awards

  • 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

DEIB and EEO Statement

GumGum is proud to be an equal opportunity employer. We're committed to creating a workplace where people feel respected, supported, and able to do their best work. We believe different perspectives make us stronger and lead to better outcomes—for our teams, our partners, and our business. We strive to build an environment where individuals are treated fairly, opportunities are accessible, and everyone is held to a high standard of respect and accountability.

We're always learning and evolving as a company, and we continue to take thoughtful steps to support our people and strengthen our culture.

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