← Back to list
Job · Mid-level

Machine Learning Platform Engineer

Platform Engineer • Mid-level • Remote • Full-time Poland Poland

ML Platform Engineer role building the infrastructure and systems that power AI capabilities, from model training to production inference.

Responsibilities

  • Build and operate the ML infrastructure and platforms powering AI products
  • Design systems for model training, evaluation, deployment, inference, and experimentation
  • Build and optimise model serving and inference infrastructure for high-throughput, low-latency workloads
  • Improve reliability, scalability, latency, and cost efficiency of AI systems
  • Develop reliable pipelines for data preparation, training, evaluation, and model release
  • Develop evaluation and benchmarking infrastructure to measure model quality and performance
  • Build production observability, monitoring, tracing, and alerting for AI/ML workloads
  • Work closely with AI engineers, researchers, and product teams

Requirements

  • Strong software engineering fundamentals and experience building production systems
  • Experience building ML infrastructure, platforms, or production machine learning systems
  • Experience with model deployment, inference, evaluation, or data pipelines
  • Strong understanding of distributed systems and system reliability
  • Ability to write clean, maintainable, production-quality code
  • Comfortable working in ambiguous, fast-moving environments

Nice to have

  • Python
  • PyTorch/JAX
  • LLM and ML serving infrastructure (vLLM, SGLang, TensorRT-LLM)
  • Cloud infrastructure
  • GPU infrastructure and performance tooling
  • Vector databases and retrieval infrastructure

Soft skills

OwnershipProblem-solvingTeamworkAdaptability

About the company

A1's mission is to build a proactive smart assistant for everyday users, focused on high reliability for long-running workflows, persistent context, and real-world task completion.

Similar jobs