Machine Learning Engineer

2 weeks ago

Belgrade, Central Serbia Reputeo Full time €60,000 - €90,000 per year

At Reputeo, we're transforming the way data is collected, analyzed, and turned into actionable insights across several industries. We're expanding our AI team with a
Machine Learning Engineer

who is ready to build production-grade Generative AI solutions.

This role is ideal for someone combining strong data analyst foundations with real-world experience in building and deploying intelligent systems.

You'll be joining an
amazing, collaborative team

working from our Belgrade office with a
hybrid work model

. We're building
global-scale products

designed to be deployed across markets and industries.

What you'll work on:

  • Build intelligent agents

for conversational search experiences that understand user intent and domain-specific context.
- Develop a cybersecurity AI layer

to assess open-source data for cyber and brand risks, automating early threat detection.
- Create an AI assistant

that streamlines security operations by analyzing alerts and closed-source logs to generate actionable insights.

Requirements:

  • Strong Python skills (scikit-learn, LangChain, LlamaIndex, PyThorch), experience with modern LLM APIs (OpenAI, DeepSeek, Mistral, Claude), and experience with Ollama
  • Hands-on experience with document parsing, summarization, RAG pipelines, and prompt engineering
  • Proven experience working as a
    data scientist

with applied business impact. Special focus on data preparation, data annotation and exploratory data analysis.
- Familiarity with SQL and noSQL databases, Chroma, Docker, Git.
- Familiarity with techniques and approaches for fine-tuning LLM models.
- Ability to collaborate with cross-functional teams and communicate insights clearly

If you're passionate about applying state-of-the-art machine learning to real-world problems and want to shape the future of intelligent data systems, we'd love to hear from you.

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