Front End Developer Intern



Software Engineering
Amsterdam, Netherlands
Posted on Tuesday, November 21, 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 role of a Front-End Developer Intern at GumGum is to dive deep into supporting the wider Creative Services team across the Advertising business by contributing towards the creation of a wide range of GumGum ad units for our clients. This role provides an opportunity to demonstrate your ability to both deliver a project within a templated structure as well as from scratch - all the while exhibiting strong ability to deliver on the parameters noted in a client request.

Working with a briefing to create dynamic, interactive ads the Creative Services team transform requests from our clients into impressive advertisements. You will be working on designing ads for an array of premium international brands as well as taking part in internal brainstorming conversations about new creative features & capabilities. The coding focus of this role is centered around coding HTML, CSS and JavaScript “from scratch” - you will not regularly use additional frameworks like angular, react or jquery, but you will gain experience with pixi.js, three.js and GSAP.

To be eligible for this role you must be currently enrolled in studies within the EU, with a requirement to remain registered as a student for the whole duration of the internship.


What You'll Achieve

  • Work with a briefing to create dynamic ads with animation primarily using Adobe Creative Suite, HTML, CSS and javascript
  • Contribute towards wider team efforts on transforming client requests into astonishing adverts
  • Design & build ad units both within established templates & from scratch
  • Take part in internal brainstorming focused on new creative features & capabilities
  • Develop your skill set further from both a coding & creative point of view within a highly collaborative & specialised team

Skills You'll Bring

  • Interest in advertising and/or AdTech industry
  • Basic Adobe Creative Suite skills
  • Ability to write responsive HTML and CSS “from scratch” - confident in the use of JavaScript
  • Keen eye for detail & creatively focused
  • Strong communication skills, work ethic and dedication
  • Ability to work well within tight deadlines & under pressure at times.
  • Preference will be given to candidates with experience working with keyframe animation software like AfterEffects or Adobe Animate
  • Fluent in English - written and spoken


  • 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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