Senior Data Scientist
- Limassol, Nicosia, Athens
- Senior
- Posted 16 Jul 2026
The Role:
Are you passionate about transforming complex data into intelligent, business-driven solutions? Do you enjoy solving challenging problems, developing cutting-edge machine learning models, and collaborating with highly skilled professionals?
We are looking for a Senior Data Scientis t to join our growing Data Science team. In this role, you will play a key part in designing and delivering innovative data products that create measurable business impact. You'll work with large-scale datasets, advanced machine learning techniques, and modern technologies while collaborating with multiple teams, and business stakeholders to bring data-driven solutions into production.
The main responsibilities of the position include:
•
Lead the design, development, and delivery of high-impact data science and machine learning solutions.
•
Translate complex business challenges into structured analytical approaches and scalable data products.
•
Build, evaluate, and optimize advanced machine learning models, ensuring high standards of quality, performance, and reliability.
•
Contribute to technical decisions and best practices across the data science lifecycle.
•
Review and validate data preparation, feature engineering, model selection, experimentation, and documentation.
•
Support the deployment and operationalization of machine learning models in batch and real-time environments.
•
Present analytical insights and recommendations to technical and non-technical stakeholders.
•
Ensure compliance with data quality, model governance, security, privacy, and responsible AI standards.
•
Identify opportunities to leverage data science for automation, forecasting, personalization, optimization, and risk management.
•
Collaborate closely with Data Engineers, Machine Learning Engineers, Software Engineers, Product Owners, and business stakeholders to develop production-ready solutions.
•
Contribute to improving team processes, technical standards, and project delivery methodologies.
•
Support the Lead Data Scientist in defining priorities, roadmaps, and strategic initiatives.
Main requirements:
•
University degree in Mathematics, Physics, Engineering, Computer Science, Data Science, or a related field.
•
At least 5 years of experience in a similar role.
•
Hands-on experience with Python libraries such as Pandas, NumPy, and Polars for data processing and analysis.
•
Strong Python programming skills with the ability to write clean, maintainable, and production-ready code.
•
Strong knowledge of modern machine learning techniques and advanced architectures, including Transformers and Graph Neural Networks (GNNs) .
•
Experience with data visualization libraries such as Matplotlib, Seaborn, and Plotly .
•
Good knowledge of SQL and statistical analysis.
•
Excellent analytical thinking and problem-solving skills.
•
High attention to detail and commitment to delivering high-quality solutions.
•
Strong communication skills with the ability to explain technical concepts to non-technical audiences.
•
Excellent verbal and written communication skills in English.
•
A collaborative mindset, curiosity, and a passion for continuous learning.
What would be considered as an advantage:
•
Exposure to Natural Language Processing (NLP).
•
Experience working with NoSQL databases.
•
Knowledge of software engineering best practices.
•
Experience working in Unix/Linux environments.
•
Basic understanding of AWS services and cloud-based machine learning environments.
Benefit from:
- Attractive remuneration package plus performance related reward
- Private health insurance
- Corporate pension fund
- Intellectually stimulating work environment
- Continuous personal development and international training opportunities
The Hiring Experience: What Awaits You
- Let’s Connect – Intro Chat with Talent Acquisition
- Deep Dive – First Interview with Your Future Team
- Bring It to Life – Role-Specific Take-Home Task
- Final Connection – Final Interview
All applications will be treated with strict confidentiality!
By submitting this application, I confirm that I have read and agree to the terms of the Privacy and Data Protection Notice and the Confidentiality Undertaking .
You apply directly on xm's careers site. See similar jobs