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Feliks Baliasnyi

Lead Business Analyst & System Product Owner | Systems analysis, API integrations, business process automation · Kyiv, Ukraine

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Feliks Baliasnyi

Feliks Baliasnyi

Kyiv, Ukraine

Joined Oct 2026

I am a systems analyst and product owner. Over the past few years I have worked on integrations via REST APIs and WebSockets, business process automation, and system architecture design.

I translate business needs into clear requirements and workflows that teams can implement. Before release I specify system behavior for partial executions, retries, timeouts and status discrepancies, and verify that it works as specified.

At Kyrrex I led the decomposition of a legacy monolith into 12 microservices, mapping REST and WebSocket communication and data flows, standardized requirements documentation (PRD, BRD, API specifications, UML, C4), and managed a 10-person business analyst team.

At Wirex I led integration and system migration to third-party liquidity and market data providers and designed the architecture and execution workflows of a rules engine.

I prefer transparent processes, clear specifications, and automation where it truly reduces manual work.

Quick Highlights

A team of 10 business analystsManaged the BA team and delivery standards
Decomposition of the monolith into 12 MSAnalysis of REST/WebSocket Interaction and Data Flows
SLA verification takes up to 15 minutesManual verification has been reduced to 25% or less
ESSEC and CU Boulder CertificatesStrategic Business Analytics & Advanced Business Analytics

Experience

  1. System Product Owner

    Wirex

    Jul 2025 - May 2026 · 10 months · Remote · Full time

    REST APIWebSocketsBusiness AnalysisProduct OwnershipSoftware Architecture
  2. Business Analyst

    Kyrrex

    Jun 2022 - Jul 2025 · 3 years 1 month · Remote · Full time

    REST APIWebSocketsUMLMicroservicesBusiness AnalysisComplianceService Level Agreements

Projects

  1. ClarityRx

    ClarityRx

    t.me
    HealthtechChatbots

Tags

Requirements AnalysisSystem AnalysisAPI IntegrationsREST APIWebSocketsMicroservicesUMLC4 ModelBPMNERDAS-IS/TO-BE AnalysisAPI SpecificationsPRDBRDKYC/AMLRules EnginesProduct OwnershipAutomationCRM IntegrationLow-Code

Tools

AI tools

n8nLibreChatOpenCodeOpenRouter

Other

AirtableBitbucketVisual Studio CodeGoogle AnalyticsFigmaJiraConfluenceGitHubIntelliJ IDEA

Certifications

  1. Strategic Business Analytics

    Credential
  2. Advanced Business Analytics

    Credential

Languages

  • UkrainianNative
  • EnglishAdvanced

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