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Job · Mid-level

Applied AI Engineer

AI / ML Engineer • Mid-level • Remote • Full-time • Poland Poland

The A1 team at Bjak is building a proactive smart assistant for everyday users. They are looking for an Applied AI Engineer who turns model capabilities into real product behavior and owns problems end-to-end.

Responsibilities

  • ▹Build and ship AI features end-to-end (model, system, user experience)
  • ▹Design and iterate on prompts, tools, memory and agent workflows
  • ▹Turn raw model outputs into structured, reliable and predictable behaviors
  • ▹Debug issues across the full stack (model, orchestration, infra, UX)
  • ▹Optimize for latency, cost and production reliability
  • ▹Develop lightweight evaluation frameworks to measure real-world performance
  • ▹Work closely with product and engineering to translate ambiguous problems into working systems

Requirements

  • ▹Strong foundation in machine learning and modern neural network architectures
  • ▹Hands-on experience with training, fine-tuning or deploying ML models
  • ▹Ability to write clean, production-quality code
  • ▹Comfort working across abstraction layers (model, infra, product)
  • ▹Strong problem-solving skills in ambiguous, fast-moving environments
  • ▹Bias toward shipping, iteration and continuous improvement

Soft skills

Problem solvingIndependent executionBringing structure and exercising judgmentCollaboration with engineers, product and research teams

About the company

The A1 team is building a proactive smart assistant for everyday users that brings intelligence to conversations, errands, organising and workflows with minimal prompting. The focus is on reliability for long-running workflows and persistent context.

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