AI Engineering Intern (dfm)

Our story:

Every year millions of people are either filing their taxes in fear or giving up on their tax refund altogether. Were working on fixing that. Our intuitive app enables anyone, regardless of education or background, to file their taxes with newfound confidence.

Spread across Germany, Spain and the UK, the team at Taxfix Group with its brands Taxfix, Steuerbot and TaxScouts, is a compassionate group of solutionfinders. We speak our minds openly, and with over 400 professionals, including tax experts, developers, and IT security experts, were rich in ideas and voices. The group has facilitated more than 3.5 billion euros in tax refunds for its customers since its founding in 2016.

Your challenge:

As an AI Engineering Intern, you will explore cuttingedge AI techniques to support the development of intelligent features within our products. You’ll contribute to agentic AI systems, multiagent orchestration frameworks, LLMpowered workflows, and model finetuning projects. This role offers the opportunity to apply advanced research and engineering skills to realworld product challenges, while working alongside experienced engineers and product teams.

Your responsibilities and decisions:

• Collaborate with Product Managers, Data Scientists, and AI Engineers to define use cases for LLMs and multiagent orchestration.

• Research and prototype agentic AI approaches for reasoning, planning, and decisionmaking in userfacing tax workflows.

• Finetune foundation models (LLMs and domainspecific ML models) for personalized tax assistance.

• Develop and evaluate multiagent architectures for handling complex tasks across Taxfix products.

• Apply data science methods to analyze structured and unstructured taxrelated data, driving model improvements.

• Experiment with emerging frameworks for autonomous AI agents and evaluate their performance in productionlike scenarios.

• Contribute to internal documentation, demos, and knowledgesharing sessions to spread AI innovation across the company.

• Your profile:

  • Completed a Master’s degree in Computer Science, Data Science, Artificial Intelligence, or a related field.

  • Solid foundation in machine learning, natural language processing, and large language models (LLMs).

  • Hands on experience with agentic AI concepts, multiagent orchestration, and autonomous systems.

  • Handson experience with ML frameworks such as PyTorch, TensorFlow, or Hugging Face.

  • Strong understanding of data science workflows, from preprocessing to model evaluation.

  • Ability to work collaboratively in a fastpaced, crossfunctional environment.

  • Enthusiasm for solving realworld problems with AI, especially in areas that simplify people’s financial lives.

  • Bonus points:

    • Experience in finetuning LLMs for domainspecific tasks.

    • Hands on experience with AutoGen, LangGraph, CrewAI, or similar multiagent orchestration frameworks.

    • Knowledge of MLOps principles (deployment, monitoring, and scaling AI models).

    • Exposure to reinforcement learning or AI planning methods.

    • Why Taxfix?

      • A chance to do meaningful, peoplecentric work with an international team of passionate professionals.

      • Holistic wellbeing and yoga.

      • Public transport subsidy and internet cost reimbursment.

      • A monthly allowance to spend on an extensive range of services that you can use and roll over as flexibly as you like.

      • 30 annual vacation days and flexible working hours.

      • Plenty of opportunities to socialise as a team. In addition to internal tech meetups, our international team hosts regular gettogethers—virtually and in person when possible.

      • Have a fourlegged friend in your life? We’re happy to have dogs join us in the office.

      • 
        Excited? So are we. Learn more about Team Taxfix on our blog and get a glimpse of our culture.

        At Taxfix, we believe that incredible things happen when you have a wealth of perspectives and experiences. Were proudly committed to equal employment and development opportunities no matter your gender, race, religion, age, sexual orientation, colour, disability, or place of origin. To help mitigate any potential unconscious biases, we ask that you refrain from including your picture, age, or marital status on your CV. Let your experiences speak for themselves.

        Not sure if you meet all the requirements for this role? Please apply anyway. You might bring something special to the team that we hadnt considered previously.