Software Developer - AI & Analytics Team
Software Developer Intern for AI & Analytics Team, developing AI features and machine learning models to streamline creative processes and boost performance.
Please note that a valid student status in Slovenia is required for this position.
Ever wonder how Spotify creates ads that look as stunning in English as in Arabic? How Adidas generates beautifully crafted dynamic creatives for tens of thousands of products? Or how Warner Bros shows billions of ads across the globe on mobile phones, websites, and even TV within milliseconds? The software we create here at Celtra makes this as easy as pie, and we need your help!
About the Role
We are seeking a Software Developer & ML Researcher Intern who will work on developing our AI features, designed to streamline creative processes, as well as develop and enhance machine learning models that boost client's ad performance on the Celtra platform. With some prior knowledge of machine learning, this role will primarily focus on implementing and integrating cutting-edge AI models into real-world applications. It involves working with bleeding-edge technologies, fine-tuning models to improve performance, and developing features powered by these models. The role also includes a component of research and staying up to date with the latest advancements in the field.
What Kind of Tech Stack Do We Use?
On the backend, you can find Scala, NodeJS, PHP, MySQL, Spark, Snowflake, and also MongoDB, Kinesis. On the frontend, we use Vue.js, Typescript and Vanilla JS when needed. Everything runs on the AWS cloud, and the ECS cluster orchestrates it. We also love CI/CD, IaC and do daily deployments to ensure your contributions see the light of day as soon as the QA team is happy.
We also actively embrace AI-assisted development with Cursor to boost productivity, iterate on PoCs and explore new ways of building software.
Your Responsibilities as an Intern:
You’ll Thrive in This Position if You:
Posted June 6, 2026