AI Engineer/ML

Onwelo is a technology partner providing comprehensive services from strategy and architecture to implementation and maintenance in digital transformation, data, and automation. The team consists of over 400 senior specialists and has completed 300+ projects for large organizations in Poland, Europe, and the USA. The company operates from several Polish cities and offices in Germany, Switzerland, and the USA, combining local presence with global reach.

• Commercial experience in Machine Learning, Data Science, and AI Engineering
• Proficient in Python and machine learning libraries
• Practical knowledge of libraries and frameworks such as scikit-learn, PyTorch, or TensorFlow
• Experience in developing solutions using RAG, tool calling, workflow orchestration, and agent memory
• Practical experience building agent systems and agentic workflows
• Ability to work with relational databases and SQL
• Fluent communication in English at minimum B2 level
• Effective collaboration in project teams and clear presentation of technical solutions

• Building and interpreting econometric models such as OLS, log-log models, and generalized linear models
• Designing, developing, and deploying solutions based on Machine Learning, Generative AI, and LLM
• Building and scaling production AI systems from prototype to deployment and maintenance
• Designing and implementing architecture for AI Agents systems
• Creating solutions utilizing methods like RAG, tool calling, workflow orchestration, and agent memory
• Integrating LLM models with existing systems, APIs, and data sources

The data administrator is Onwelo Sp. z o.o. located in Warszawa, ul. Sienna 39. Applicants have rights relating to their personal data according to applicable laws, including access, rectification, deletion, and objection. Providing data required by law is mandatory for recruitment; refusal may prevent recruitment continuation. Personal data is processed for recruitment purposes and may be retained for claims or future recruitment with consent, which can be withdrawn. Data recipients include Just Join IT and other entrusted entities.