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Nikita SizovNS

Nikita Sizov

Technical Product Owner (Payments & Integrations)

€200/day
Bratislava, SK
3-7 years

Average response time: 1 hour

About Nikita

Technical Product Owner with 4+ years of experience in fintech and SaaS, focused on designing and governing integration-driven systems at scale. Specialized in building structured, constraint-based environments that improve time-to-market, predictability, and cost efficiency. Combines product ownership with technical expertise to define system behavior, establish decision frameworks, and optimize complex product ecosystems.
  • Ukrainian

    Native or bilingual

  • English

    Fluent

  • French

    Basic

Remote only
Primarily works remotely

Experience

  • Corefy
    Technical Product Owner (Payments & Integrations)
    November 2024 - Today (1 year and 9 months)
    • Defined integration readiness criteria and lifecycle, formalizing how integrations are evaluated and accepted into development, which reduced readiness time from 9 to 3 days and improved onboarding speed by 15%
    • Developed blueprinting and reusable integration patterns, reducing variability and lowering cost per integration by 30%
    • Established stage-based and confidence-level model, increasing delivery predictability from 60% to 85%
    • Formalized capacity model and delivery boundaries, enabling stable execution of 15+ integrations, 25–30 flows, and 100+ updates monthly
    • Architected unified data model across Jira, codebase, CRM, and financial systems, enabling lifecycle visibility and consistent decision-making
    • Introduced automation strategy across delivery and communication processes, eliminating 600+ hours of manual work weekly and reducing operational overhead
    Atlassian JIRA AI Automation Product management Fintech n8n
  • Peiko
    BA Lead / Technical Project Manager
    February 2023 - November 2024 (1 year and 9 months)
    • Designed and implemented standardized Discovery framework, defining structure of requirements, artifacts, and valida tion flow, which reduced timeline by 50% (40 → 20 days)
    • Established Business Analysis function from scratch (roles, processes, templates), enabling scalable and repeatable project onboarding
    • Introduced structured presale and solution design model, improving requirement quality and increasing acceptance rate by 30%
    • Translated business requirements into technical implementation across multiple fintech/Web3 projects ($450k+), ensuring consistent delivery outcomes
    Mobile application Team management
  • airSlate
    Marketing / Technical Project Manager
    September 2021 - February 2023 (1 year and 5 months)
    • Designed experimentation framework (A/B testing, hypothesis validation), improving CTR by 15–25% through itera tive decision-making
    • Introduced KPI and OKR structures, enabling performance visibility and alignment across teams
    • Orchestrated cross-functional execution across multiple teams (30+ people), ensuring stable delivery across parallel streams

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Education

  • MSc in Computer Science
    National Technical University of Ukraine
    MSc in Computer Science

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