Enter a job title or keyword

Senior Data Scientist


Job Location:

Kyiv - Ukraine

Monthly Salary: Not provided by the employer
Posted: 26 September 2026 (Yesterday)
Application Deadline: 24 December 2026
Vacancies: 1 Vacancy

Job Summary

  • Analyze and investigate existing detection logic built on multiple interconnected signals and rule-based expressions
  • Understand and map complex data flows processing pipelines and dependencies across enterprise systems
  • Identify redundancy inefficiencies and unnecessary complexity within current detection structures
  • Propose simplification and optimization approaches while preserving detection quality and operational effectiveness
  • Conduct exploratory analysis on large and complex datasets to validate hypotheses and support decision-making
  • Assess downstream implications and operational risks of proposed changes before implementation
  • Translate analytical findings into clear recommendations for technical and non-technical stakeholders
  • Collaborate closely with engineers data scientists and security researchers to gather context and resolve blockers independently
  • Operate effectively in a fast-paced environment with shifting priorities and short delivery cycles
  • Contribute to improving analytical methodologies and approaches within the newly forming team

Qualifications :

  • 5 years of experience in Data Science Analytics Engineering Data Analytics or related analytical roles
  • Strong proficiency in Python and SQL
  • Experience working with large-scale and complex datasets
  • Strong analytical and problem-solving skills with the ability to independently structure ambiguous problems
  • Proven experience driving investigations from hypothesis generation to data-backed conclusions
  • Strong engineering mindset with the ability to understand and reason about complex logic and codebases
  • Ability to evaluate system behavior and understand downstream impacts of analytical decisions
  • Experience collaborating cross-functionally with engineering and research teams
  • Ability to work autonomously with minimal supervision
  • Upper-Intermediate or higher English level
  • Familiarity with JavaScript


    WILL BE A PLUS

  • Experience with Snowflake
  • Experience in cybersecurity fraud detection or risk analytics domains
  • Experience working with rule-based systems or detection pipelines
  • Exposure to enterprise-scale analytics platforms
  • Understanding of data pipeline architecture and signal processing systems
     

Additional Information :

PERSONAL PROFILE

  • Independent and proactive problem solver
  • Curious and investigative mindset
  • Comfortable working in ambiguous environments
  • Strong ownership mentality
  • Adaptable to changing priorities and fast delivery cycles
  • Collaborative and communication-oriented
  • Detail-oriented with strong systems thinking capabilities

 


Remote Work :

Yes


Employment Type :

Full-time


About Company

Company Logo

At Sigma Software, we are involved with the client’s team to contribute to the design and development of a technical solution for their tokenized domain reservation platform. We started by assigning a software architect to design the smart contracts and integrate blockchain into the s ... View more

View Profile View Profile