Senior Data Scientist (m/f/d)

Clariant SE; Łódź; On-site; PLN 120,000 - 150,000; Full time

Job summary

A global specialty chemicals company in Poland is seeking a Senior Data Scientist to develop and deploy machine learning solutions across various functions. The ideal candidate has a master's or PhD in a relevant field and over 4 years of experience in machine learning projects. This role offers competitive compensation and a collaborative work environment focused on data-driven transformation, making a significant impact in the organization.

Benefits

Professional development opportunities

Competitive compensation and benefits package

Collaborative working environment

Qualifications

• 4+ years of experience delivering end-to-end machine learning projects.
• Industrial/process-driven experience preferred.
• Experience mentoring data scientists is a plus.

Responsibilities

• Develop and deploy machine learning solutions across manufacturing, commercial, R&D, and supply chain.
• Mentor a team of data scientists across multiple initiatives.
• Build robust modular pipelines enabling reusable ML components.

Skills

Machine learning

Python (Pandas, NumPy, scikit-learn, TensorFlow/PyTorch)

SQL

Data orchestration

Cloud experience (AWS preferred)

MLOps familiarity

Analytical mindset

Excellent communication skills

Education

Master's or PhD in Data Science, Computer Science, Applied Mathematics, or similar field

Job description

Clariant is a focused, sustainable, and innovative specialty chemical company. We connect our customers to value-adding and sustainable solutions for products used in countless everyday applications. Our solutions contribute to our customers' sustainability targets while prioritizing our own. We are committed to creating value through innovation and sustainability for our customers, stakeholders, and the environment.

As a Senior Data Scientist (m/f/d), you will develop and deploy machine learning solutions across manufacturing, commercial, R&D, and supply chain functions. You will define best-practice standards for models and mentor a team of data scientists while driving Clariant's data-driven transformation journey.

Responsibilities

• Develop and deploy machine learning solutions across manufacturing, commercial, R&D, and supply chain
• Define best-practice standards for models and approaches
• Mentor a team of data scientists across multiple initiatives
• Drive problem framing, hypothesis development, and solution architecture in cross‑functional teams
• Build robust modular pipelines enabling reusable ML components
• Review and challenge modeling approaches, ensuring scientific rigor and business relevance
• Act as a trusted advisor to stakeholders and shape priorities, challenge assumptions and quantify value
• Promote agile delivery and experimentation culture

Requirements

• Master's or PhD in Data Science, Computer Science, Applied Mathematics, or similar field
• 4+ years of experience delivering end-to-end machine learning projects
• Industrial/process-driven experience preferred
• Exposure to product-driven development
• Experience mentoring data scientists is a plus
• Strong proficiency in Python (Pandas, NumPy, scikit‑learn, TensorFlow/PyTorch), SQL and data orchestration
• Cloud experience (AWS preferred) & MLOps familiarity
• Bonus: Experience with plant/process data systems
• Strong analytical mindset combining structured thinking and pragmatic problem-solving abilities
• Excellent communication skills with a proactive ownership approach to projects

Our Offer

• The opportunity to make a significant impact through data-driven transformation
• A collaborative working environment with cross-functional teams
• Professional development opportunities in a global specialty chemicals company
• Competitive compensation and benefits package

Clariant is a Swiss-based global specialty chemicals company, which is concentrated and developed in three business units: Care Chemicals, Catalysts and Adsorbents & Additives. Our purpose as a company is reflected in our tagline "Greater chemistry - between people and planet", which considers the principles of customer, innovation and people orientation, as well as a focus on creating solutions to foster sustainability in different industries by offering high-value and high-performance chemical specialties.

At Clariant, we believe that diversity, equity and inclusion are essential to our success. We strive to cultivate a workplace where all employees feel welcomed, respected, supported, and valued. Our diverse workforce allows us to tap into a wealth of perspectives, experiences, and capabilities that drive innovation. We are committed to ensuring equal opportunities for professional growth and advancement across all levels of the organization, based on objective criteria and regardless of gender, gender identity, race, ethnicity, religion, protected veteran status, age, disability, sexual orientation or other aspects of diversity in accordance with the relevant governing laws. By bringing together talented individuals with diverse backgrounds and viewpoints, we gain the agility to meet the evolving needs of our global customers and communities. Join our team to help advance our mission of fostering a culture of belonging where everyone can thrive.

• Read more about our commitment for people – download our Employment Standards Brochure

We at Clariant are aware of our responsibility. Our purpose »Greater chemistry – between people and planet« describes the role we can play in the world if we align our thinking and all future decisions with it.