Tetiana Sydorenko@tetiana.sydorenko

Paris-based Senior Product Designer with 5+ years building for high-stakes and safety-critical domains. Specialised in AI cybersecurity, focused on agentic workflows for autonomous threat triage. I currently lead design at Red Sift — building AI cybersecurity products that make threats legible and actionable, from email authentication enforcement to brand impersonation detection, used by 1,000+ organizations including Microsoft, Wise, TUI, Rakuten, and Capgemini.

Alongside this, I've designed for defence — volunteering with several Ukrainian miltech startups on situational awareness applications, OSINT tooling, and C2 systems for degraded environments

Why so engaged? I'm Ukrainian. Being in a warzone, I saw cyberattacks, infrastructure disruption and disinformation precede the armed conflict. That sequence changed how I think about where conflict actually begins — and the price of neglecting cyber resilience.

Always looking to connect with likeminded people — and open to volunteering on projects and research. Drop me a message and let's chat!