ML & Software Engineer (Junior/Mid)
Warsaw
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Build the future of chemistry with us.We are a focused team of chemists, machine learning researchers, and engineers working on faster ways to make molecules and discover novel chemistry.
What makes the work different.
We bring together people with different kinds of judgment - scientific, technical, operational, and commercial - because hard problems in chemistry are never solved by one function alone.
We move through uncertainty by testing ideas quickly, learning from real feedback, and staying honest about what we know and what we do not.
Ideas matter here regardless of seniority: we speak up early, challenge assumptions, and change our minds when better arguments or evidence appear.
Areas we care about
01_
Synthetic and analytical chemistry
Design experiments, run complex reactions, interpret data, and help turn unusual chemistry into dependable workflows.
02_
Machine learning and scientific software
Build models and systems that connect synthesis planning, reaction outcomes, condition selection, assays, robotic workflows, and customer-facing tools.
03_
Platform scaling and operations
Scale reaction discovery with microliter experiments, rigorous operations, thoughtful automation, and reliable day-to-day execution.
04_
Business, product, and customer impact
Understand where chemistry slows customers down, shape practical solutions, and help turn scientific capability into products people rely on.
Our Values
At molecule.one we treat our values as a very important framework for making both everyday & strategic decisions. They can guide you on whether you will have a good time working for us. Tap each one to read more.
Rules & roles are our tools — not goals.
We treat processes as a means to an end, and as a rapidly growing organization, we have not yet implemented as many of them as more mature organizations have. If you thrive in places with a lot of flexibility — you will thrive here. If you prefer a more rigid and well-defined structure as in a large corporation — you may struggle at times.
Embrace the unknown.
A unique characteristic of molecule.one is that we solve extremely challenging technical & scientific problems. To do that, we are experimenting a lot. You have to be comfortable with making mistakes, but also measuring everything you do and correcting course promptly. Sometimes, even the problem definition is elusive at first. All this can be overwhelming for a person who requires their supervisor to define goals clearly, but a great opportunity for someone looking to explore the unexplored.
React ideas.
We treat everyone's ideas and perspectives as essential and equal regardless of seniority. We recognize that a diverse range of ideas is more valuable than a limited number of expert opinions, increasing the likelihood of finding optimal solutions to complex problems. We do not look at the title or seniority of the person who has submitted the idea — ideas good by an agreed-upon standard are implemented and rewarded. On the other hand, this requires everyone to speak up when they disagree with the collective wisdom.
Act proactively in M1's collective interest.
We all believe in M1's mission and want M1 to succeed. Each of us contributes daily to this success, and it is in our all common interest to achieve it. We sometimes are OK with performing tasks that are needed for M1's collective interest, even if they are not the most glorious ones or not part of our role — though we strive to minimize the need for that.
Think from scratch.
We solve problems by first understanding them deeply, from first principles. We understand that progress is often made by reinventing the wheel. Notably, that doesn't mean doing everything from scratch. If you prefer always defaulting to already published or validated approaches — you will struggle. Conversely, if you like defying conventional wisdom — you will find much room for that at M1.
Quest worth taking.
Faster drug discovery means better outcomes for patients. Our mission is to solve the unpredictability of chemistry to speed up drug discovery. We recognize that it will be a long journey. We all think it is worthwhile. Hence, we are OK with working on challenging problems, and sometimes in challenging circumstances, because we strongly care about the end goal.