Data Scientist (Middle/Senior, Speech)

About the Position

Data Scientist (Speech)

KYIVSTAR Київстар – New Revenue Stream /

Full-time /

Hybrid

Kyivstar is seeking a Middle/Senior Data Scientist specializing in Speech to join their AI transformation strategy team. As part of the AI transformation strategy, Kyivstar invests resources into the development of products and services that use cutting-edge ML and Speech technologies to significantly improve internal processes and day-to-day tasks, while also helping partners and clients to receive maximum benefits from these technologies.

Responsibilities

• Design, train, and optimize ASR and TTS models for production use
• Design, train, and evaluate classical ML models
• Perform feature engineering and data analysis for both speech and non-speech data
• Collaborate with DE/DevOps team to deploy the solution
• Plan and manage ML projects, articulate methodologies, and communicate results and business impact to stakeholders and customers

Requirements

• 4+ years of experience in Machine Learning, Deep Learning, and Speech Processing
• Strong Python skills with experience building maintainable and production-ready ML code
• Fundamental knowledge of ML/DL theoretical concepts
• Hands-on experience with training and deploying models for various speech processing tasks including data preparation (e.g., speech classification, speech-to-text, text-to-speech, speaker diarization, etc.)
• Proficient in version control (Git) and containerization tools (Docker)

Nice to Have

• Experience with real-time / low-latency speech systems
• Experience with distributed data processing and training in multi-node, multi-GPU environments
• Familiarity with PySpark for large-scale data processing
• Experience with Azure/AWS
• Exposure to Data Science in the Telecom industry

We Offer

• Working with huge amounts of data at the largest operator in Ukraine
• Hands-on experience with Cloud technologies and tools
• Great diversity of tasks and projects to utilize your knowledge and skills; flexibility in tools and approaches
• Opportunity to grow within the team of talented data scientists

About the Company

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Working at Kyivstar, which is a part of the international Kyivstar Group Ltd., requires us to follow high standards of business ethics, legal obligations, our values, the Group’s Code of Conduct, and all defined policies and procedures. We aim to be honest and open, act ethically, truthfully, and responsibly. We understand the importance of protecting your Personal Data and strive to apply leading practices in this area. By clicking the “Apply for this job” button, you confirm that you have read, understood, and explicitly agree to our Applicants Privacy Policy.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.