Senior Data Science Engineer

Ciklum is looking for a Senior Data Science Engineer to join our team full-time in Poland.

We are a custom product engineering company that supports both multinational organizations and scaling startups to solve their most complex business challenges. With a global team of over 4,000 highly skilled developers, consultants, analysts and product owners, we engineer technology that redefines industries and shapes the way people live.

About the role:
As a Senior Data Science Engineer, become a part of a cross-functional development team engineering experiences of tomorrow. Together, we will work on the project for a global food tech platform with nearly 100 million active users across 25 countries, focused on delivering data-driven value and innovation across an expanding ecosystem.

Responsibilities:

Development of prototype solutions, mathematical models, algorithms, machine learning techniques, and robust analytics to support analytic insights and visualization of complex data sets

Work on exploratory data analysis to navigate datasets and derive broad conclusions based on initial appraisals

Provide optimization recommendations that drive KPIs established by product, marketing, operations, PR teams, and others

Interact with engineering teams to ensure solutions meet customer requirements in terms of functionality, performance, availability, scalability, and reliability

Work directly with business analysts and data engineers to understand and support their use cases

Collaborate with stakeholders across the organization to identify opportunities for leveraging company data to drive business solutions

Drive innovation by exploring new experimentation methods and statistical techniques to improve product decision-making processes

Cross-train other team members on developed technologies while continuously learning from peers

Contribute to unit activities and community building, participate in conferences, and promote best practices and excellence

Requirements:

5+ years of experience developing Data Science solutions

Bachelor's or Master's degree in Mathematics, Statistics, or a related field

Proven ability to solve business problems using machine learning and statistical approaches

4+ years of applying machine learning techniques such as regression, classification, clustering, dimensional reduction, time series prediction, outlier detection, and recommendation systems

Strong understanding of machine learning algorithms and their performance constraints

4+ years of Python experience for machine learning solutions and statistical analysis using libraries such as Pandas, Sci Py, Scikit-learn, XGBoost, Light

GBM, stats models, and imbalanced-learn

Experience identifying hidden data patterns and conducting detailed error analysis

2+ years of experience with data visualization tools such as Tableau, Power BI, Looker, and Python libraries including Matplotlib and Seaborn

Experience using SQL for data processing, manipulation, sampling, and reporting

3+ years of experience creating and maintaining object-oriented machine learning solutions

Understanding of CRISP-ML(Q) or TDSP concepts

1+ year of experience with MLOps including production ML pipelines, Docker, containerization, and orchestration

2+ years of experience with cloud platforms such as AWS, Azure, or GCP, including cloud AI and ML services

What`s in it for you?

Strong community:
Work alongside top professionals in a friendly, open-door environment

Growth focus:
Take on large-scale projects with a global impact and expand your expertise

Tailored learning:
Boost your skills with internal events including meetups, conferences, workshops, Udemy access, language courses, and company-paid certifications

Endless opportunities:
Explore diverse domains through internal mobility, finding the best fit to gain hands-on experience with cutting-edge technologies

Flexibility:
Enjoy flexibility with full remote working possibilities

Care:
Company-paid medical insurance, mental health support, and financial and legal consultations

About us:
At Ciklum, we are always exploring innovations, empowering each other to achieve more, and engineering solutions that matter. With us, you’ll work with cutting-edge technologies, contribute to impactful projects, and be part of a One Team culture that values collaboration and progress.
With delivery centers in Wrocław and Gdańsk, our 300+ professionals in Poland drive forward-thinking solutions for global clients. Join a community where collaboration sparks innovation—and your impact reaches millions.

Interested already? We would love to get to know you! Submit your application. We can’t wait to see you at Ciklum.

• AWS
• Python

• Job Identification 1598
• Job Category Data Science and Machine Learning