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Machine Learning Engineer

location Poland • working time Full-time • remote Remote

About the job

Matrix Eastern Europe, the offshore division of Matrix IT, one of the leading global R&D services companies with more than 10,000 professionals, is looking for an AI Senior Software Engineer to join one of our teams -Stampli!

We’re hiring a Machine Learning Engineer to accelerate AI-driven innovation across our B2B SaaS product and the broader Stampli organization.

This is a hands-on, end-to-end development role where you’ll lead the implementation of ML/LLM-based solutions that boost operational efficiency and deliver exceptional product experiences. As an AI-First company, Stampli embed AI across every department and workflow—you’ll be at the heart of this transformation.

You will collaborate closely with product managers, engineers, and stakeholders to identify impactful AI opportunities, build state-of-the-art systems, and scale them across the organization.

Responsibilities

  • Build Intelligent Systems: Design and develop ML/LLM-powered solutions that solve
    real-world challenges across Stampli’s product and internal workflows.
  • Own Full Lifecycles: Take projects from concept all the way to production, including
    model training, evaluation, integration, and monitoring.
  • Leverage State-of-the-Art Tools: Work with leading frameworks like LangChain, Hugging
    Face, TensorFlow, and PyTorch to deliver cutting-edge functionality.
  • Collaborate Cross-Functionally: Partner with product managers, engineers, and
    stakeholders to embed AI capabilities into user-facing features and backend services.
  • Ship at Scale: Build and maintain scalable APIs and services, integrating best practices in
    CI/CD, observability, and cloud infrastructure.
  • Report with Impact: Share progress, challenges, and results clearly with technical and
    executive stakeholders.

Requirements

  • 6+ years of experience as a Backend Developer, Data Engineer, or ML Engineer
  • Bachelor’s degree in Computer Science or a related STEM field
  • Strong proficiency in Python and ML tooling
  • Proven ability to build production-grade ML systems end-to-end
  • Deep experience with LLMs and ML frameworks (e.g., LangChain, LangGraph, Hugging
    Face, TensorFlow, PyTorch)
  • Solid foundation in system design, architecture, and microservice patterns
  • Excellent problem-solving skills and ownership mindset
  • Strong collaboration and communication abilities

Advantages

  • M.Sc. in Computer Science, Software Engineering, or similar field
  • Experience building and scaling LLM-powered applications
  • Familiarity with AWS and DevOps best practices (CI/CD, monitoring, IaC)
  • Exposure to NoSQL and real-time data processing pipelines

What we can offer

  • Additional 20 days of paid leave
  • Remote work and flexible working hours
  • Professional and career development benefits
  • Top-quality work environment
  • Online courses
  • Online sports activities
  • Team buildings and Christmas parties
19 hours ago