Machine Learning Engineer

The Fourth Law is a leading Ukrainian manufacturer of autonomy technologies for drones. Our solutions are codified according to NATO standards and are currently utilized by over 50 units of the Security and Defense Forces of Ukraine, as well as 20+ drone manufacturers.
Our products are named after prominent Ukrainian figures of the “Executed Renaissance” and the “Sixtiers” movement—Vasyl Stus, Olena Teliha, Mykola Zerov, and Anatoliy Lupynos.
In 2026, the company was recognized by DOU as the most promising project in the defense tech sector.
Purpose of the Role: Develop and implement intelligent models to solve real-world business challenges. You will transform theoretical algorithms into functional tools that enhance our product

Key Responsibilities:
Design, implement, and optimize machine learning models and algorithms;
Collaborate with data scientists, software engineers, and product teams to deploy ML solutions;
Conduct data preprocessing, feature engineering, and model evaluation;
Monitor and maintain the performance of deployed ML models in production;
Document model development, experiments, and results clearly and consistently;
Stay up-to-date with the latest advancements in machine learning and AI technologies.
Experience and skills we are looking for:
Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field;
3+ years of experience in machine learning, data science, or related fields;
Strong programming skills in Python, R, or similar languages;
Proficiency with ML frameworks and libraries such as TensorFlow, PyTorch, Scikit-learn;
Experience with model training, evaluation, and optimization for real-world applications;
Solid understanding of machine learning algorithms, data structures, and statistical methods;
Ability to work independently, manage multiple tasks, and collaborate with cross-functional teams.
Why Choose US?
Work that has a real impact. We build products that directly strengthen Ukraine’s defense capabilities.
Opportunity to work alongside top-tier engineers in MilTech and autonomous systems.
Official employment under the Diia.City legal framework.
The possibility of reservation (deferment) for conscripts in accordance with the requirements of current legislation.
Annual paid leave — 24 calendar days.
Additional paid leave for veterans — 14 calendar days.
Paid sick leave in accordance with the law.
Possibility of reimbursement for training costs according to internal company policies.
We are not just looking for employees, but for like-minded individuals who share our values and are ready to build the future of Ukrainian MilTech.