━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ PERRY'S RÉSUMÉ - LICENSING Perry Kundert // `+1-780-970-8148' ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 2025-07-16 07:00:00 Inventive R&D engineer with 30+ years architecting secure, high-performance software systems across enterprise, fintech, and industrial domains. Creator of the Python `crypto-licensing' module implementing Ed25519-signed license verification, and `python-slip39' implementing cryptocurrency payment integration and secret handling, demonstrating hands-on cryptographic licensing expertise. Deep commercial experience in C++ (25+ yrs), Python (15+ yrs), REST APIs, client-server architectures, and distributed systems. Proven track record delivering mission-critical solutions, secure cryptography implementations, and enterprise-scale systems. Canadian citizen, available immediately, ready to relocate. ([PDF], [Text]) [PDF] [Text] Core Competencies ═════════════════ Languages & Frameworks ────────────────────── • C++ (25+ yrs commercial): enterprise-scale systems w/ <1 defect per 10K LOC in production. • Python (15+ yrs): `crypto-licensing' (in test), `python-slip39', and `cpppo' modules in wide use. • Rust (5+ yrs): Holochain distributed system R&D and HoloFuel cryptocurrency prototypes. • Embedded systems development: RTOS, SIMD, assembly optimization, PCB debugging. Licensing Technologies & Cryptography ───────────────────────────────────── • Creator of `crypto-licensing' Python module: Ed25519-signed license verification with DNS-based public key distribution (DKIM model), offline license validation, cryptocurrency payment integration. • Deep cryptographic licensing experience: Public-key infrastructure (PKI), Ed25519 signatures, license server architectures, node-locked and floating license models. • Security expertise: SLIP-39 Shamir secret sharing, secure communications, PQC, fail-safe auth. • Reed-Solomon error and erasure recovery C++ module `ezpwd-reed-solomon' used worldwide by aerospace and military contractors. • FlexNet-style licensing: Node-locked, floating, and license server architectures through hands-on implementation. Enterprise Architecture & APIs ────────────────────────────── • Service-Oriented Architecture (SOA): SOAP/REST APIs, microservices design patterns. • Client-server architectures: Multi-tier systems, distributed authentication, session management. • Decentralized/Distributed systems: CAP/FLP designs, BFT resilience, DHTs consistency. • Web/cloud-based technologies: RESTful services, cloud deployment, scalable web applications. • Network protocols: EtherNet/IP, Modbus, SCADA, TCP/IP stack, DNS, HTTP/HTTPS, QUIC, mTLS1.3, WebSockets/WebTransport. • Authentication Standards: Have implemented WebAuthn, FIDO2 sysstems in various languages. Development Best Practices ────────────────────────── • Large-scale commercial software development: CI/CD pipelines, code reviews, mentoring • Quality focus: <1 defect per 10K LOC maintained in mission-critical RTU firmware • Performance optimization: SIMD (AVX/NEON), lock-free wait-free multithreading, real-time SDR and signal processing. • DevOps: Linux, Docker, automated testing, version control (Git), deterministic build/deploy (Nix). • Tools: Git, Docker, GDB, Valgrind, Linux Perf, Static and dynamic analysis Professional Experience ═══════════════════════ R&D Consultant - /Dominion R&D Corp./ (Remote, 2009–Present) ──────────────────────────────────────────────────────────── /Architected and delivered cryptographic licensing, blockchain, and enterprise software systems./ *Licensing & Cryptography Leadership* • Designed and implemented `crypto-licensing' Python module with Ed25519 cryptographic signatures • Secure license verification via DNS TXT records (DKIM-style public key distribution) • Offline license validation with signed verification caching • Cryptocurrency payment integration (Ethereum Virtual Machine smart contract) for automated license issuance • RESTful API for license server operations • Production deployment supporting commercial software licensing • Developed `python-slip39': Cross-platform SLIP-39 App for secure BIP-39 seed backup/recovery • Advanced cryptographic key management and Shamir secret sharing implementation • Multi-platform GUI and CLI tools (Windows, macOS, Linux, iOS, Android) *Enterprise Software Development* • Created `cpppo': Industrial EtherNet/IP CIP protocol parser in Python • Commercial deployment in industrial automation systems globally • Client-server architecture with TCP session management • Protocol reverse-engineering and standards implementation • Developed `ezpwd-reed-solomon': High-throughput Reed-Solomon FEC in C++/JavaScript • Used by aerospace and defense contractors worldwide • Mitigated critical security vulnerabilities in major enterprise collaboration suite (global deployment) • Guide development teams through cryptographic system architecture and secure implementation • Active contributor to diverse open-source projects across multiple languages *Technical Consulting* • Architected blockchain and IoT systems for energy and fintech clients • Deployed rugged satellite-connected monitoring and communications systems across Alberta oilfields • Authored technical articles on distributed systems, cryptography, and industrial communications Distributed Systems R&D - /Holo Ltd./ (Kelowna, BC 2018–2020) ────────────────────────────────────────────────────────────── /Architected and tested novel distributed transaction engine prototypes./ • Designed partition-tolerant mutual credit system with cryptographic finality • Implemented agent-centric accounting enabling linear O(n) scaling vs O(n²) blockchain bottlenecks • Validated simultaneous atomic transactions during network partitions • Contributed to R&D for Holochain's distributed application framework Software Engineer - /clearGRID Ltd./ (Kelowna, BC 2017–2022) ───────────────────────────────────────────────────────────── /Replaced expensive custom radio telemetry with commodity hardware and SDR technology./ • Built real-time SDR system for utility meter reading using off-the-shelf CPUs. • Optimized throughput with AVX/NEON SIMD for 25Msps I/Q multi-channel signal processing. • Implemented fault-tolerant distributed consensus for partial data collected from multiple samples across lossy RF channels. Sr. IT Advisor - /Enbridge Pipelines/ (Edmonton, AB 2002–2009) ─────────────────────────────────────────────────────────────── /Deployed cryptographically secure SCADA communications for critical hydrocarbon pipeline infrastructure./ • Architected fault-tolerant Reed-Solomon encoded multi-route protocol for real-time SCADA • Cryptographic integrity across hostile networks • Multi-path routing maintaining security during communications failures • Still in production operation today across continent-wide infrastructure • Developed solid-state RTUs for 24/7 pipeline control • Maintained <1 defect per 10,000 lines of code in production • Controlled $100B+ critical infrastructure • Deployed hundreds of ruggedized embedded units across remote sites Software Developer - /Hewlett-Packard/ (Calgary, AB 1989–1996) ─────────────────────────────────────────────────────────────── /Re-architected core SCADA automation alarm system component./ • Pioneered DFA state machine-based alarm correlation system for distributed SCADA • Enabled end-users to configure complex, safety-critical workflows • System deployed continent-wide in pipeline SCADA systems (30+ years continuous operation) B.Sc. Computer Science - /University of Calgary/ (Calgary, AB 1984-1989) ─────────────────────────────────────────────────────────────────────────