cybermancer.dev
Staff Engineer — real-time, native, medical-grade systems.
Rust · C / C++ · distributed backends · cyberpunk fiction · whatever else runs at 3am.
Building cast2.net — free screen sharing, no login. `lazygit` is cooking and a WASM game is next on the list. Canon and book pages are filling up. More to come from the electric dark.
// capabilities
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Languages
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Backend
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Frontend / Native
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Data & Messaging
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Infrastructure
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Architecture
// proof of work
Staff Engineer @ hear.com / audibene
Feb 2021 — present · Berlin, Germany
- Trademarked global teleaudiology platform — $100M+ revenue, 100k+ hours of remote medical consultations across US / DE / CH.
- Medical-grade real-time in Rust, C++, C — native apps, OS-level daemons, device drivers; strict latency & reliability guarantees, $10M+ asset-refresh cost avoided.
- FDA-approved clinical hearing tests integrated into remote consultations — +16% purchase conversion, +30 NPS.
- WebRTC-based real-time A/V for low-latency clinical interactions at scale.
- Distributed backends in Go / gRPC / Kubernetes / AWS using DDD for high-availability clinical workloads.
// selected work
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cast2.net ↗
Free screen sharing. No login, no account, no friction. Built because every existing tool wanted my email first.
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passwordstore-rs ↗
Cross-platform Rust port of
pass. Single native binary — no shell, no MSYS, no WSL. Compatible with original.password-storeformat. -
healing-tank ↗
ESP32 firmware for a cyberpunk biohealing tank prop. OLED, LED, Yavuz Yener inspired. Hardware meets fiction.
// explore
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Archive
Projects, experiments, and builds. Rust, WASM, systems.
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Canon
Books, films, series, and works that rewired my brain.
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cast2.net
Free screen sharing. No login. No friction.
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CV
Experience, skills, and live GitHub data.
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GitHub
github.com/flejz — 70 repos, open source experiments.
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LinkedIn
linkedin.com/in/flejz — professional background.