Halyna Leshchevych
Technical Lead Waf Application Security Imperva-thales at Allstarsit
Based in Prague, Czech Republic
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Seniority
Other
Department
Other
Location
Prague
Industry
IT Services and IT Consulting
Company size
373
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h•••••••@allstarsit.com
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Background
About Halyna Leshchevych
Technical Lead at Imperva-Thales specializing in Application Security (WAF), protocol analysis, and product performance engineering. I lead the Performance, Escalations, and Beta engineering team for our WAF portfolio. I focus on resolving complex field issues that require deep-dive protocol research and high-fidelity infrastructure simulation. Areas of Focus: Protocol & Security Research: Conducted deep-dive verification into WAF parsing efficiency and resilience against advanced vectors, including TCP Middlebox Reflection attacks. Performance & Validation: Ownership of new release validation (HTTP/2, TLS 1.3, gRPC) and NetSecOpen-aligned performance testing using Spirent Avalanche. Infrastructure & Lab Architecture: Design of multi-layered environments mirroring enterprise deployments for accurate reproduction of field conditions. Product Strategy: Leading global Beta programs for high-profile customers, translating field feedback into production-ready product development (PD) improvements. Technical Stack: WAF, Cisco, HTTP/TLS Analysis (Wireshark, Burp Suite, OWASP ZAP), Linux, Python/Bash, AI/LLM Integration.
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