ML Software Engineer

About this role

Description
Holisticon Connect is a division within NEXER GROUP - a custom software development company. We started in Poland in 2017 and are now a team of over 140 people. We have the opportunity to work with world-renowned brands from Scandinavia, the UK, and Western Europe. Our goal is to grow stronger, in competence rather than in numbers. If you like what we do, check out our offer, maybe we will have the pleasure of meeting you! 😊


We are looking for a
Machine Learning Software Engineer.
In this role, you will contribute to the d
evelopment
and
evolution
of our internal ML tooling, helping
transform
early‑stage prototype workflows into scalable, compliant production solutions. Contribute to the widespread implementation of state-of-the art machine learning algorithms in modern medical research.


You will work on
creating new tools
and
enhancing
existing ones,
adding functionality
,
resolving issues
,
increasing
test coverage, and
improving
documentation. A key part of your responsibilities will also include ensuring that both the processes and the developed tooling meet all required compliance standards.


We offer a choice of employment form: B2B or Employment Contract

• UoP: 15 000 – 18 000 PLN gross/month
• B2B: 130 – 150 PLN net/hour + VAT

You Might Be The Perfect Match If You Are/have

• Experience in building and applying ML systems (not limited to hosted LLMs) using frameworks such as PyTorch, TensorFlow, or JAX.
• Experience in developing training data processing pipelines for image data; comparable experience with other complex data types (e.g., proteomics) will also be considered.
• Practical understanding of the MLOps lifecycle, including model training, validation, deployment, and quality monitoring.
• Excellent proficiency in Python.
• Strong software engineering skills, including writing high‑performance, modern, and reliable code, supported by proper documentation, unit tests, ...