Senior Data Scientist - Workday Products

Kainos; Poland; On-site; PLN 300,000 - 420,000; Full time

Job summary

Kainos is seeking a Senior Data Scientist for its Workday Products division. You will develop high quality AI/ML solutions for a fast-growing Workday suite, including Kainos Smart offerings and Pay Transparency tools.

You’ll influence design, deployment, and scalability of models in production with cross-functional teams. You will apply advanced ML, engage with generative AI use cases, and contribute to data visualizations and dashboards to communicate insights.

Qualifications

• Typically 4-5 years of relevant industry experience, or less when combined with a relevant PhD.
• Proficient in applying mathematics, statistics, and machine learning principles to derive actionable insights from complex datasets.
• Proficient in Python programming, with a focus on writing clean, efficient, and maintainable code for developing and deploying reliable AI/ML solutions in production environments.
• Hands-on experience using machine learning frameworks (e.g., Scikit-learn, TensorFlow, PyTorch) to design and implement solutions.
• Experience deploying AI/ML models to production systems in collaboration with engineering teams.
• Experience working with generative AI use cases, leveraging large language models to solve real-world problems such as text summarisation, chatbots, or content generation.
• Basic experience with cloud technologies (e.g., AWS, Azure, or GCP).
• Experience creating interactive visualizations and dashboards using tools such as Dash or Streamlit to communicate findings effectively.
• Strong interpersonal skills, with the ability to lead client projects and explain technical concepts in non-technical terms.

Responsibilities

• Develop high quality AI and ML solutions for our Workday product suite.
• Design and deliver advanced AI/ML solutions to improve functionality and scalability.
• Possibly carry formal line management responsibilities, including appraisals for junior team members.

Skills

Python

Machine learning

Mathematics & statistics

Data analysis

Production deployment

Generative AI

Cloud platforms

Data visualization

Communication

Interpersonal leadership

Education

MSc or PhD in Computer Science/ML/OR/Statistics

Tools

Scikit-learn

TensorFlow

PyTorch

Dash

Streamlit

Docker

Kubernetes

PostgreSQL

MongoDB

DynamoDB

Job description

Join Kainos and Shape the Future

At Kainos, we’re problem solvers, innovators, and collaborators - driven by a shared mission to create real impact. Whether we’re transforming digital services for millions, delivering cutting-edge Workday solutions, or pushing the boundaries of technology, we do it together.

We believe in a people-first culture, where your ideas are valued, your growth is supported, and your contributions truly make a difference. Here, you’ll be part of a diverse, ambitious team that celebrates creativity and collaboration.

Ready to make your mark? Join us and be part of something bigger.

As a Senior Data Scientist within Kainos’ Workday Products division

you'll be responsible for developing high quality AI and ML solutions for our fast growing suite of Workday products – including Kainos Smart (Smart Test, Smart Audit and Smart Shield), Employee Document Management and Pay Transparency Analyzer. You will work on the design and delivery of advanced AI/ML solutions that improve the functionality, scalability and efficiency of our Workday product suite. You may also carry some formal line management responsibilities, including appraisals, for more junior members of the team.

Essential Experience:

• Typically 4-5 years of relevant industry experience, or less when combined with a relevant PhD.
• Proficient in applying mathematics, statistics, and machine learning principles to derive actionable insights from complex datasets.
• Proficient in Python programming, with a focus on writing clean, efficient, and maintainable code for developing and deploying reliable AI/ML solutions in production environments.
• Hands-on experience using machine learning frameworks (e.g., Scikit-learn, TensorFlow, PyTorch) to design and implement solutions.
• Experience deploying AI/ML models to production systems in collaboration with engineering teams.
• Experience working with generative AI use cases, leveraging large language models (e.g., OpenAI GPT, Hugging Face Transformers) to solve real-world problems such as text summarisation, chatbots, or content generation.
• Basic experience with cloud technologies (e.g., AWS, Azure, or GCP).
• Experience creating interactive visualizations and dashboards using tools such as Dash or Streamlit to communicate findings effectively.
• Strong interpersonal skills, with the ability to lead client projects and explain technical concepts in non-technical terms.

Desirable Experience:

• Advanced degree (MSc or PhD) in a quantitative field like Computer Science, Machine Learning, Operational Research, or Statistics.
• Proven track record of delivering data science projects, especially in enterprise software or SaaS environments.
• Basic familiarity with CI/CD pipelines and MLOps practices, including automated testing, model versioning, and monitoring workflows.
• Hands-on experience with containerisation and orchestration technologies (e.g., Docker, Kubernetes) to support AI/ML model deployment.
• Proficiency in cleansing, filtering, and integrating data from diverse sources, including relational databases (e.g., PostgreSQL, MySQL) and NoSQL databases (e.g., MongoDB, DynamoDB).
• Familiarity with Workday data structures, APIs, and reporting tools.
• Demonstrable experience mentoring junior team members, with some involvement in formal performance appraisal processes, and fostering collaboration within teams.
• Prior involvement in knowledge-sharing activities within teams or through public forums (conferences, blogs, etc.).

Embracing our differences

At Kainos, we believe in the power of diversity, equity and inclusion. We are committed to building a team that is as diverse as the world we live in, where everyone is valued, respected, and given an equal chance to thrive. We actively seek out talented people from all backgrounds, regardless of age, race, ethnicity, gender, sexual orientation, religion, disability, or any other characteristic that makes them who they are. We also believe every candidate deserves a level playing field.

Our friendly talent acquisition team is here to support you every step of the way, so if you require any accommodations or adjustments, we encourage you to reach out.

We understand that everyone's journey is different, and by having a private conversation we can ensure that our recruitment process is tailored to your needs.