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We are looking for an engineer intern who will have an opportunity to work on our products, used by top companies and thousands of people on a daily basis. You will be joining one of our cross-functional teams and, with the support of our mentors, you will get your hands dirty by working on some interesting projects.

Your responsibilities: 

  • Developing a back-end and front-end of our products that are used by top companies and thousands of people on a daily basis.

  • On the back-end you will mainly work on our APIs (REST, web sockets) and family of background jobs.

  • On the front-end you will be implementing rich experiences in our apps, participating in revamping the client-side architecture and general redesign of the product frontend.

  • Making sure we maintain a high level of quality by writing automated tests.


  • Understanding of RESTful API architecture.

  • Knowledge of HTML5 and CSS.

  • Knowledge of JavaScript

  • Knowledge of at least 1 modern JS framework (Angular, React, Vue.js, ..).

  • Knowledge of at least 1 backend programming language (Python, PHP, Ruby, Java, Go, Scala …).

  • Good verbal and written English communication skills.

  • Willingness to constantly learn and improve.

  • Team player.

What brings extra points?

  • Knowledge of Vue.js.

  • Knowledge of global state management concepts.

What we do 

In the past years, Celtra has built two world-class products, Creative Enablement (CE) & Creative Automation (CA)

Creative Enablement (CE) 
Creative Enablement is already a growing market leader for a couple of years, helping companies such as CNN, TripAdvisor, Bloomberg, NBCU, ... to enable creativity and improve the quality of their advertising inventory. Our technology enables customers to generate and serve thousands of ads in seconds.

Creative Automation (CA) 
Celtra’s younger CA product is chasing a much bigger opportunity by helping brands make content creation better, faster, and more efficient. It is still in the early days of development and lots of features need to be developed, but it already has an impressive list of customers such as Spotify, adidas, Shopify, Unilever, P&G Lululemon…

At Celtra the end goal is to build great and quality products and make our users’ life easier. We’re on a journey to create something new in the creative technology space. 

What we offer 

In Celtra it’s all about looking beyond the surface, beyond the numbers, and really trying to see the qualities that are at the core of each person, their talents; the discovered ones or better still, the undiscovered ones. We look for people who naturally want to take responsibility for their own success, and strive to do something that has a tangible impact. 

To our best talent, we give them the freedom to do the unusual. 

Our perks and benefits are: 

  • We have a remote-first culture with a possibility to work from the office that offers a dynamic workplace and quality working conditions 
  • We provide plenty of opportunities for interns to grow and develop  
  • We offer a well-paid internship
  • We provide employees with top-notch working equipment 
  • We provide work-life benefits that allow flexibility at different stages of life