Backend Software Developer Intern, Analytics

Ljubljana, Slovenia Part-time

We are searching for a Backend Engineer, who will help our analytics team improve automation of the whole pipeline that is processing 3 TB of data every day. You will work on optimising our services so we can automatically handle failures, retrying and all the other stuff that happens in distributed system.

A bit about the analytics stack

  • Snowflake is our bread and butter, but you might also work with Mysql and S3.
  • Kinesis, enabling us to be event-driven.
  • Programming language of choice is Scala and some PHP.
  • Distributed processing engine such as Apache Spark.
  • AWS and its services are the backbone of our infrastructure.


What do we expect?

  • Some programming skills, and understanding of what APIs are.
  • You are truly interested in how things work and are always willing to dig deeper.
  • Good verbal and written English communication skills.
  • Willingness to constantly learn and improve.
  • Team player 


About Celtra

We are a hi-growth AdTech company with 180+ employees around the globe with offices in Boston, New York, San Francisco, London, Ljubljana and Singapore. Celtra offers a cloud-based, self-service software that empowers global brands like Unilever, Facebook, Uber and VICE to manage the entire creative lifecycle of digital advertising. The product streamlines the process of creating, deploying and optimizing digital advertising, improving advertising effectiveness while reducing operational costs. The platform offers powerful, easy-to-use creative tools to enable advertisers to produce high-quality, unique digital experiences.

Here it’s all about looking beyond the surface, beyond the numbers, and really trying to see the qualities that are at the core of the person, their talents; the discovered ones or better still, the undefined 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 the freedom to do the unusual.


We take good care of our people.

  • We offer a paid internship
  • We place great importance on the development of our interns 
  • We provide interns with top notch working equipment
  • We offer a dynamic workplace and quality working conditions