AI Developer (f/m/d)

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!

We are seeking an AI Developer who will work on developing and enhancing our AI agent, designed to optimize creative processes and simplify the use of the Celtra platform for our clients. With some prior knowledge of agent building, this role will involve fine-tuning existing models, introducing and integrating new and existing Celtra functionalities, and improving the overall AI technology that powers our platform. Your contributions will help automate workflows and improve the efficiency of creative production for some of the world's largest brands.

What kind of tech stack do we use?

We use various tools to craft our products. On the backend, you can find Scala, NodeJS, PHP, MySQL, Apache Spark, Snowflake, and also Go, MongoDB, Kinesis. On the frontend, we use Vue.js and Vanilla JS when needed. Everything runs on the AWS/ECS cloud. We also love CI/CD, IaC and do daily deployments to ensure your contributions see the light of day as soon as the tests are green and the QA team is happy.

Your responsibilities:

• AI Agent Development: Build and enhance the AI agent that helps clients optimize creative workflows, automate tasks, and streamline the use of Celtra’s platform.
• Feature Integration: Add new functionalities from existing Celtra tools and actions to the AI agent, enabling users to automate even more tasks and customize their workflows.
• AI Optimization: Continuously optimize AI tools to ensure the best performance, speed, and scalability for clients running global campaigns.
• Collaborate with Cross-Functional Teams: Work closely with data scientists, engineers, and product managers to integrate generative AI capabilities into our products and services.
• Research and Innovation: Stay up-to-date with the latest advancements in generative AI and machine learning. Evaluate new technologies and methodologies to continuously improve our models and solutions.
• Code Quality and Documentation: Write clean, maintainable, and well-documented code. Participate in code reviews and contribute to best practices in software development.

You will thrive in this position if you have: 

• A passion for exploring new AI technologies and finding solutions to enhance automation and user experience.
• Analytical and problem-solving skills with a track record of tackling complex technical challenges.
• Proactive, a good communicator and a team player.
• Dedicated to continuous learning and growing. 
• Strong written and spoken English.

What brings extra points?

• Demonstrated experience of end-to-end integration of agentic frameworks like LangChain, Llamaindex or Transformers Agents in a production environment.
• Experience with advanced functionalities of Foundation model services, such as OpenAI, AWS Titan or Anthropic Claude.
• Experience harnessing vector databases, such as Pinecone, Chroma and Snowflake for retrieval augmented generation.

What we offer?

• Remote working. You can choose to work from home or join us in our Ljubljana office.
• Flexible schedule. You’re trusted to create the right conditions for your best productivity.
• Continuous education. Up to 1000 EUR per year for conferences, books, and courses of your choice.
• Equipment of your choice.
• Knowledge shares. 
• Additional pension and health insurance.
• WFH budget. An additional budget of 500 EUR to set up your home space.
• Employee well-being. Dedicated budget for any kind of wellness activities such as fitness, yoga, etc.

About Celtra

Celtra helps enterprise advertisers, media, and agencies design, approve, and deliver digital creative across the ever-growing number of campaigns, markets, designs, and variants. Celtra’s Creative Automation & Enablement Software for helps brands move faster than ever while dramatically scaling content production. Companies like adidas, TripAdvisor, Spotify, Unilever, NBCU, Lululemon, YETI, Vice, and hundreds more partner with Celtra to cut production costs while increasing efficiencies and output in the cloud.

Empowering Creativity through Diversity & Inclusion

Our mission is to empower creativity - and we cannot fulfill our mission without different perspectives. Diversity drives innovation, and Celtra is committed to diversity, equity, inclusion, and belonging. 

Every employee is empowered at Celtra - no matter your race, age, religion, gender identity, sexual orientation, physical or mental ability, or ethnicity.  We hire the best, and develop our teams through continuous education and mentorship, in a community where everyone can bring their whole selves to work.

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