Sigma Software is hiring a Strong Middle/Senior Data Scientist to shape AdTech solutions reaching millions of users globally. In this role, you will design advanced machine learning models, build scalable data pipelines, and deliver analytical solutions for high-volume datasets to enhance product performance.
What You'll Do
- Design, develop, and deploy machine learning models to solve complex business problems in the AdTech domain.
- Analyze large datasets to generate actionable insights and improve product performance.
- Build and maintain scalable data pipelines using big data tools and frameworks.
- Perform data preprocessing, cleaning, feature engineering, and model evaluation.
- Collaborate with cross-functional teams including engineers, analysts, and product managers.
- Ensure model accuracy, reliability, and scalability through rigorous testing and validation.
- Stay updated on emerging data science techniques, tools, and best practices.
- Contribute to team discussions, process improvements, and knowledge sharing.
What We're Looking For
- At least 4 years of experience applying machine learning, statistical modeling, and data mining techniques to real-world business problems.
- Strong programming skills in Python and/or R.
- Solid understanding of machine learning algorithms, their applications, and statistical principles.
- Experience building and productionizing data pipelines and ML models in cloud environments, preferably AWS.
- Hands-on experience working with large-scale data using PySpark or RSpark.
- Proficient in SQL and experienced with Excel for data analysis and reporting.
- Ability to measure the business impact of ML models using proper evaluation frameworks.
- Familiarity with version control systems and agile development practices.
- At least Upper-Intermediate level of English.
Technical Stack
- Languages: Python, R
- Cloud: AWS
- Big Data Tools: PySpark, RSpark
- Analytics: SQL, Excel
Team & Environment
You will collaborate within cross-functional teams including engineers, analysts, and product managers.
Work Mode
This is a remote position open to candidates based in Ukraine, Europe, or LATAM.
Sigma Software is an equal opportunity employer.
