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nexos.ai careers

AI Engineer | Mid-senior

Vilnius/Kaunas, LT

Full Time/hybrid

Engineering & Product

Join the AI revolution. We’re building an all-in-one AI platform to help teams do their best work and automate every routine task you can think of. We’re looking for problem-solvers to turn powerful AI into an easy, no-code tool for teams everywhere.

Main Responsibilities

  • Lead AI/ML innovations - from coming up with ideas for research, POCs, to contributing to full product feature build out.
  • Act as GenAI expert - live and breathe AI field news and trends.
  • Hands-on work trying out new concepts, AI frameworks and tooling around them for different use cases - context management, memory, retrieval, agentic loop, A2A and many other solutions.
  • Be part of product development - from discovery together with PMs to delivery within cross-functional teams.
  • Evaluate new LLMs (proprietary and OSS), and assess for performance, cost, and other metrics.
  • Bonus: act as AI evangelist to promote the adoption and understanding of AI both within and outside nexos.ai.

Core Requirements

  • Strong record of work on AI/ML projects in production.
  • Professional expertise in building Python applications; designing, executing, and maintaining AI systems.
  • Good understanding of different AI developer frameworks and tooling.
  • Background in proprietary or open-source LLM usage for text, embeddings or multi-modal use cases.
  • Expertise in prompt engineering and evaluation techniques.
  • Sense of ownership and accountability, capable of planning your work effectively.
  • Get Things Done attitude, mixed with a creative approach when needed.

Bonus Point For

  • Experience building complex Agentic systems and tools powering them.
  • Deep expertise in data science methodologies, ML algorithms, and NLP techniques.

Salary Range

Gross Salary 3900 - 7800 EUR per month.

What we offer

  • Professional growth. Internal and external events, online training, conferences, books - everything you need to reach full potential.
  • Health benefits. Private health insurance, online and on-site workouts, consultations to feel and be your best.
  • Team spirit. Team buildings and parties with games, shows, tastings, food coupons, gifts, and it’s on us.
  • More free time. Stay with us and additional vacation days will be added to your calendar.
  • Additional paid leave. Additional days are covered by us in cases of illness or special occasions.
  • Flexibility. Flexible working time arrangement.
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AI Engineer | Mid-senior · Vilnius/Kaunas

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