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September 2, 2026
Senior Data Scientist / ML Engineer
Senior • Remote
19,320 - 25,200 PLN/yr
Warsaw, MZ, Poland
As a Senior Data Scientist / ML Engineer, you will work with technology experts on challenging projects across industries using cutting-edge technologies.
Example projects include:
- An AI-driven optimization engine for airport operations management, using real-time radar, air-traffic, and passenger data.
- AWS-powered recommendation solutions using sophisticated LLMs to provide domain-specific recommendations.
Quick Facts
- Develop, implement, and validate Machine Learning models that support business objectives.
- Design AI solutions for complex business challenges and measurable value.
- Research, test, and select tools, technologies, and AI solutions that meet business requirements.
- Translate client needs and business problems into data science problems.
- Architect and oversee data pipelines and workflows, including data-quality and security standards.
- Coordinate with Data Engineering and Software Engineering teams on AI application development.
- Present findings and recommendations clearly to stakeholders.
- Prioritize and control tasks in an Agile/Scrum framework to ensure timely delivery.
What you’ll need to succeed in this role
- 5+ years of commercial experience designing and implementing scalable AI solutions in Machine Learning, predictive modeling, optimization, NLP, Computer Vision, or GenAI.
- Ability to develop ML algorithms from scratch through production deployment.
- Strong Python skills, including clean code, OOP design, and ML libraries such as Scikit-Learn, PyTorch, and TensorFlow.
- Experience deploying solutions in AWS or Azure cloud environments.
- Knowledge of LLM applications, including AI agents, semantic search, prompt engineering, multimodal embeddings, and RAG.
- C1 English proficiency.
- Excellent communication skills and consulting experience with direct client interaction.
- Experience with SQL and NoSQL databases, including MongoDB, Snowflake, and Databricks.
- Knowledge of CI/CD principles, GitHub, and GitHub Actions.
- Familiarity with MLOps practices, Kubernetes, and Docker.
- Master’s or Ph.D. in Computer Science, Data Science, Mathematics, Physics, or a related field.
- Experience with Spark, Hadoop, and Kafka is a plus.
- Leadership and mentoring experience is highly desirable.
Benefits
- Work in a supportive team focused on AI and Big Data.
- Work on international projects with global enterprises and startups.
- Flexible remote, office, and coworking work arrangements.
- Career paths, knowledge-sharing initiatives, language classes, and sponsored training or conferences, including Databricks and Anthropic training materials and certifications.
- Team-building events and an integration budget.
- Work-anniversary, birthday, and milestone celebrations.
- Medical and sports packages, eye care, and well-being support, including psychotherapy and coaching.
- Full work equipment, including a laptop and necessary devices.
- Opportunities to build a personal brand through conferences, blog writing, and meetups.
- Dedicated buddy-supported onboarding in a supportive and autonomous culture.
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