EZRA OKENDA
Secure systems · Blockchain architecture · Cryptography · 7+ years building at the edge
Building on the
edge of possibility.
Dedicated Information Systems Security professional with a strong foundation in secure software development, cryptography, blockchain architecture, and network technologies. Over 7 years in full-stack and blockchain development, with 4+ years focused on Rust for performant, secure systems and smart contracts.
Emphasizing privacy, data integrity, and vulnerability mitigation. Proven expertise in designing secure distributed systems, conducting security audits, implementing multi-signature controls, and ensuring compliance in high-stakes environments.
CCNA certified and Google Cybersecurity Professional. Pursuing a Masters in Computer Science with emphasis on cryptography and secure systems at the University of East London.
Technical Arsenal.
Career Timeline.
- ›Designed and built a helpdesk ticketing platform and monitoring/evaluation tool with access controls and data integrity checks.
- ›Wrote, tested, and documented software for forest inventory management, resource tracking, and task automation.
- ›Collaborated cross-functionally to define secure project scopes, implement testing protocols, and harden systems against vulnerabilities.
- ›Applied secure coding practices maintaining confidentiality, integrity, and availability of critical institutional data.
- ›Coordinating affairs of the Hyperledger community across Africa (Linux Foundation Decentralized Trust).
- ›Led continent-wide open-source blockchain initiatives for finance, supply chain, and banking sectors.
- ›Promoted secure blockchain adoption, cryptographic best practices, and privacy-enhancing solutions.
- ›Facilitated collaboration among African developers building tamper-resistant, cross-industry systems.
- ›Developed and tested Plutus smart contracts in Haskell for product tracing on Cardano's eUTxO model.
- ›Integrated on-chain metadata with IPFS for secure off-chain storage of product IDs and certifications.
- ›Built APIs via Cardano-Wallet and Blockfrost for seamless frontend interaction with on-chain data.
- ›Conducted smart contract audits and implemented multi-signature wallet controls for GDPR compliance.
- ›Deployed contracts on Cardano testnet and mainnet, optimizing transaction costs and monitoring performance.
- ›Developed a Rust-based blockchain solution for real estate asset tokenization.
- ›Worked with interdisciplinary teams to develop specifications and production plans for software designs.
- ›Unit, automated, integration, and parameterized tests to cover all edge cases.
- ›Integrated software solutions into pre-existing systems, analyzing specifications and incompatibilities.
- ›Designed, prototyped, coded, tested, and optimized architectures across the full blockchain project spectrum.
Selected Works.
On-chain protocols, secure institutional systems, and open-source community leadership. Each project a node in the decentralized graph.
Cardano Product Tracing dApp
Web3 tracing application built on Cardano's eUTxO model using Plutus/Haskell smart contracts. Integrated IPFS for off-chain metadata storage and Blockfrost + Cardano-Wallet APIs for frontend interaction.
Real Estate Asset Tokenization
Rust-based blockchain solution for real estate asset tokenization. Designed architecture for fractional ownership, integrated smart contract testing suites covering unit, integration, and parameterized edge cases.
Forest Service Helpdesk Platform
Secure helpdesk ticketing and monitoring/evaluation platform for Kenya Forest Service. Incorporates role-based access controls, data integrity checks, and secure automation protecting sensitive institutional resources.
Forest Inventory Management System
Software suite for managing forest inventory data, tracking conservation resources, and automating reporting tasks. Built with secure coding practices maintaining confidentiality and availability of critical data.
Hyperledger Africa Initiatives
Led continent-wide open-source blockchain initiatives under Linux Foundation Decentralized Trust. Coordinated secure blockchain adoption across finance, supply chain, and banking sectors in Africa.
Smart Contract Audit Pipeline
End-to-end smart contract security audit workflow combining static analysis, fuzzing, and symbolic execution. Applied to EVM and Cardano contracts — multi-sig wallet controls and vulnerability remediation.
Let's build
something real.
Whether it's a blockchain protocol, a secure full-stack system, a smart contract audit, or open-source collaboration — I'm open to ambitious ideas.