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December 17, 2025

Senior Software Engineer (Python)

Senior • Remote

$5,500 - $6,200/

Kraków, Poland

(4159)

N-iX is a global software development service company that helps businesses across the globe create next-generation software products. Founded in 2002, we unite 2,400+ tech-savvy professionals across 40+ countries, working on impactful projects for industry leaders and Fortune 500 companies. Our expertise spans cloud, data, AI/ML, embedded software, IoT, and more, driving digital transformation across finance, manufacturing, telecom, healthcare, and other industries. Join N-iX and become part of a team where your ideas make a real impact.


About the project: Our client is an established market leader who has been processing over 18 million vehicle claims per year since 2002, with more than 1,000 employees worldwide. They combine AI-based processes and the latest technologies with the knowledge of our automotive experts.


Responsibilities:

  • Focus on backend development, designing and implementing software solutions in Python (especially FastAPI) in the field of artificial intelligence and machine learning

  • Conceptualize and test scalable applications and services that meet the requirements of our customers

  • Work closely with Data Scientists, the DACE department, and other Developers to seamlessly integrate AI models into existing systems and bring them into production

  • Analyze and optimize the performance of our AI-Applications to maximize their efficiency and effectiveness

  • Apply your expertise and contribute to the continuous development and improvement of our development processes and methods


Requirements:

  • Qualification: A degree in IT, physics, mathematics, or a related field, preferably complemented by a computer science degree, as well as three or more years of experience in development with Python

  • Experience & Know-how: Solid backend experience, hands-on knowledge of FastAPI and core Python, experience in hosting AI models, as well as a basic understanding of machine learning and SQL

  • Personality & Working method: Excellent analytical abilities and problem-solving skills, able to work independently and stay well-organized, good team player

  • Technical skills: Experience with Python (NumPy, OpenCV, FastAPI) , AWS ML services, DevOps (GitLab CI/CD, Docker, Kubernetes, NVIDIA Triton), and backend development (REST API, OpenAPI, Swagger)

  • Language: Fluent in written and spoken English


Nice-to-have

  • C# (Entity Framework Core, ASP.NET Core) experience

  • Experience in LLM frameworks such as Haystack/LangChain, PyTorch as well as good in written and spoken German