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Lead Fullstack Engineer @ Acaisoft
  • Warsaw
Lead Fullstack Engineer @ Acaisoft
Warszawa, Warsaw, Masovian Voivodeship, Polska
Acaisoft
15. 11. 2025
Informacje o stanowisku

You will be cooperating with a leading provider of AI evaluation and optimization solutions, trusted by multinational companies to optimize AI agents and detect performance issues in large language models.
In this role, you will contribute to a product that addresses one of the most important and challenging problems facing society’s adoption of AI today. 

Due to the client’s time zone, we would appreciate a candidate who can work occasionally until 6:00 / 7:00 p.m. 

This is a 100% remote position, but if you enjoy working from an office, you’re warmly welcome to join us there too ?


Join us and make a real impact! 

If you’re ready to broaden your horizons and work with an innovative company at the forefront of AI, we’d love to hear from you. You’ll help build the environments that shape how future AI systems are trained, evaluated, and aligned - and collaborate with world-class engineers and researchers on one of the most important technical challenges of our time. 


  • Solid, practical knowledge of Python and backend framework - FastAPI.
  • Experience in TypeScript coding (some skills in modern UI frameworks like React). 
  • Understanding of relational databases like PostgreSQL.
  • Practice with cloud environments like AWS.


Nice to have:

  • Systems experience.
  • A degree in Computer Science, Mathematics, Statistics, or other quantitative field.
  • Familiarity with vector databases and columnar databases.

You will be cooperating with a leading provider of AI evaluation and optimization solutions, trusted by multinational companies to optimize AI agents and detect performance issues in large language models.
In this role, you will contribute to a product that addresses one of the most important and challenging problems facing society’s adoption of AI today. 

Due to the client’s time zone, we would appreciate a candidate who can work occasionally until 6:00 / 7:00 p.m. 

This is a 100% remote position, but if you enjoy working from an office, you’re warmly welcome to join us there too ?


Join us and make a real impact! 

If you’re ready to broaden your horizons and work with an innovative company at the forefront of AI, we’d love to hear from you. You’ll help build the environments that shape how future AI systems are trained, evaluated, and aligned - and collaborate with world-class engineers and researchers on one of the most important technical challenges of our time. 

,[Build high-performance user interfaces for the product (LLM evaluation workflows and data visualizations)., Design efficient REST APIs., Closely collaborate with cross-functional partners in software engineering, design, product, ML, and research. Requirements: Python, FastAPI, TypeScript, systems experience Additionally: Sport subscription, Private healthcare, Flat structure, Small teams, International projects, Free coffee, Bike parking, Free snacks, Free beverages, Free parking, In-house trainings, Modern office, Startup atmosphere, No dress code.

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