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    SI

    Sigma Software

    AdTech

    Senior Data Scientist

    Kyiv, UkraineRemoteFull-time5+ yrs experiencePosted 4d ago
    All Sigma Software jobs

    Job description

    • 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
    • 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

    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

    Job details are sourced from the employer's original posting.

    Open job posting
    SI

    About the company

    Sigma Software

    We are looking for a Senior Go Developer to join our dynamic team and work on cutting-edge AdTech solutions. This role offers the opportunity to experiment with AI, LLMs, and emerging technologies while solving complex challenges in large-scale data processing.  CUSTOMER Our customer is a global leader in contextual advertising with more than 500 employees worldwide. They specialize in delivering highly relevant ads by leveraging AI, real-time technology, and large-scale data processing. Operating in the AdTech industry, they are recognized for innovation in Connected TV (CTV) advertising. The team you will join works with the agility of a startup while benefiting from the resources of a global organization. PROJECT You will contribute to the development of a smart advertising platform that processes terabytes of data to understand audiences and deliver precise, contextual ads. The platform combines AI, LLMs, and emerging technologies to push the boundaries of CTV advertising. In this role, you will own innovation end-to-end — from research and prototyping to delivering production-ready solutions.

    View all Sigma Software jobs
    Industry
    AdTech
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