Senior Data Scientist

Posted 6/17/2026 · last confirmed live 8/26/2026

If you’re a talented Data Scientist looking to be part of a fast-growing, innovative R&D team, shape the future of decision-making in business, work on cuttingedge technologies and vast amounts of global real-time data, affect billions of mobile users, and become an industry leader - then let’s talk! Start.io is a mobile data platform that enables organizations to uncover insights and make datadriven decisions that enhance strategies and drive growth. We are seeking a Senior Data Scientist to join our Data Science & Engineering team. Responsibilities: Analyze large and complex data to discover hidden patterns and opportunities; Develop and own end-to-end highly scalable data pipelines; Develop state-of-the-art machine learning models, and algorithms and build solutions in monetization fields; Provisioning data models for real-time (online) processing; Shape new data products, and constantly improve the existing products; Collaborate with multiple teams including Product, BI, Analysts, DevOps, R&D and Marketing to lead and accomplish overall solutions; Oversee a complete release to production, including analyzing requirements, testing, monitoring and measuring results, multitasking, and quickly responding to critical issues. Requirements: B.Sc./M.A/M.Sc. degree in Computer Science, Engineering, Math, Statistics, or other equivalent fields; 6 years as a Data Scientist - a strong background in ML concepts and models; Hands-on experience with Python, especially with data science ML libraries (regression & classification algorithms e.g. XGB or LGBM, recommendation system algorithms, etc.; Understanding of databases and SQL for data retrieval; Monitoring and alerting tools (e.g. Grafana, Kibana). Will be a plus: Knowledge in the programmatic advertising landscape – DSPs, SSPs, exchanges – significant advantage; Experience with relational (e.g. Vertica, VoltDB) and non-relational (e.g. MongoDB) databases; Experience with PMML. What we offer: Help and support from our caring HR team; 20 days of vacation; The exchange of experience and work with talented colleagues; Last but not least - valuable compensation for your efforts.

This role is published by Globaldev Group on workable. SwiftFit is not the employer and does not accept applications.