Frontend Javascript Engineer

At Blub Blub we’re helping kids from around the world develop their speech and language skills. We’re looking for a Frontend JavaScript Engineer, who would join our team developing web apps, mobile apps, landing pages and blogs that support our Speech Blubs app (


  • Develop features in an Agile team.
  • Constantly optimizing and improving the current codebase.
  • Cooperate closely with designers, product owners and other engineering teams.
  • Learn and adopt new technologies as soon as they are released.

Our stack:

  • We use JavaScript ES6 wherever possible.
  • We use Vue.js, Nuxt.js, Angular to build our web apps.
  • We use REST API to connect our NodeJS backend.
  • We use WordPress as our blog and several landing pages.
  • For infrastructure we use Heroku, DigitalOcean and AWS.

What do we expect:

  • Excellent programming skills in JavaScript.
  • Experience with various data architectures and paradigms.
  • At least 1-2 years of experience in software engineering.
  • Knowledge of Git, Heroku and similar development tools.
  • Fluency in English language (written and spoken).

What brings extra points:

  • Experience with Vue.js.
  • Experience with WordPress.
  • Experience developing frontend web apps hosted on Heroku and/or AWS.
  • Experience developing responsive web apps.
  • Experience with analytics services.
  • Experience with unit testing.
  • Contribution to open source projects.
  • Knowledge of agile development workflows.

What do we offer:

  • Contract with Blub Blub Inc. for an indefinite period of time, with a 3-month probationary period.
  • Cozy startup environment with couches and sunny balcony in the center of Ljubljana.
  • Young and ambitious team with the vision of helping as many children as possible with their language abilities.
  • Visit conferences and participate in internal development workshops.
  • Mentoring with opportunity for personal and professional development.

About Blub Blub

Blub Blub Inc. creates high-quality smart screen time for children. Our most popular product is Speech Blubs, which was released in 2017 and is now the #1 speech and language app and #5 top-grossing app for children aged 5 and under in the U.S.A. The app boosts young children’s comprehension and extends their vocabulary, whilst improving their pronunciation, attention, and even their emotional regulation.

Our team is comprised of parents, designers, marketers, growth experts, UX experts, data analysts, engineers, marketers, and content creators. We are customer-centric, data-informed, and revenue-driven. Our team is based in Ljubljana (Slovenia, EU), and we work with experts, therapists, modeling agencies, and video production partners from Florida, London, Madrid, Johannesburg, and elsewhere. is eagerly awaiting your application! 🙌