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Yohannes G. — Senior Software Engineer from Ethiopia

Yohannes G.

Senior Software Engineer

Ethiopia 3-6 years
Open to offersNew to Platform
Languages
English
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About

Yohannes G., a seasoned Software Engineer and Blockchain Developer, has a comprehensive background in web development, decentralised platforms, and AI-integrated systems spanning over five years. Adept in technologies like React, Next.js, TypeScript, and Python, Yohannes has demonstrated proficiency in leading remote engineering teams and optimizing sprint performance. At Veretin Blockchain, he helmed a 5-engineer team delivering full-stack Web3 solutions on Cardano, while at SoundRig, he managed a decentralised music marketplace, improving release cycle efficiency with CI/CD innovations. His tenure at Lela Tech and Dynamic Technologies further underscored his ability in AI-driven SaaS platforms and e-commerce systems, respectively. A graduate from Addis Ababa Science and Technology University in Software Engineering, Yohannes is dedicated to advancing technology solutions in global contexts. Based in Addis Ababa, he remains active in the Ethiopian Blockchain Community, fostering growth and expertise in Web3 domains.

Experience

  • Team Lead / Senior Software Engineer

    Veretin Blockchain | Web3 · 2025 — Present
    Leading a team of 5 engineers to develop full-stack Web3 applications on Cardano, managing the entire delivery process from system architecture to production deployment. Conducting smart contract security audits utilizing Plutus and Haskell to identify and rectify vulnerabilities before mainnet launch. Overseeing full-cycle technical recruiting for Web3 companies, which includes designing coding assessments, conducting architecture interviews, and evaluating senior engineer candidates.

  • Technical Project Manager

    SoundRig (United Kingdom, Remote) · 2024 — 2025
    Designed and implemented a decentralised music and NFT marketplace leveraging Cardano and TON blockchains; employed React and Next.js for the frontend, while developing the backend APIs with Node.js. Created an end-to-end NFT minting pipeline that automated metadata validation and managed on-chain transactions. Established CI/CD pipelines and automated code review gates with GitHub Actions and Docker to enhance the release process. Facilitated third-party wallet integrations, ensuring compatibility across platforms.

  • Project Manager and Backend Engineer

    Endubis Blockchain Solutions · 2024 — 2025
    Directed a distributed team of 7 engineers to create a non-custodial Cardano cryptocurrency wallet, utilizing Plutus smart contracts and a Node.js backend for managing UTxO and transactions. Defined the communication architecture for on-chain and off-chain interactions, integrating Cardano node APIs with backend services to maintain wallet state synchronization. Spearheaded Agile delivery through sprint planning and managed the project roadmap, enhancing sprint velocity by 30%. Conducted security audits for backend APIs and smart contracts, addressing compliance vulnerabilities before public launch.

  • Full Stack Developer

    Muyalogy · 2023 — 2025
    Developed course management and analytics dashboard modules for a SaaS LMS using React, Next.js, Node.js, and PostgreSQL. Created a modular GraphQL API layer that supported multiple frontend features, reducing data over-fetching and optimizing API response times. Refactored core React components and integrated Redux for state management, improving performance scores and user load times.

  • Software Engineer, AI and Blockchain

    Lela Tech · 2024 — 2024
    Engineered AI-driven SaaS platforms by integrating Claude and OpenAI Codex APIs with Cardano smart contracts, enabling automated on-chain actions based on AI outputs. Developed backend services in Python FastAPI and Node.js NestJS to manage AI inference, blockchain transactions, and webhook integrations across platforms. Deployed and audited Plutus and Solidity smart contracts to ensure compliance with security and tokenomics standards prior to mainnet release.

  • Frontend Developer

    Perago Information Systems · 2023 — 2024
    Created reusable React component libraries and integrated REST/GraphQL APIs for government-facing E-Service platforms that processed numerous daily transactions. Established AWS cloud deployment pipelines that automated various stages of build, test, and release, thereby decreasing manual deployment efforts significantly.

  • Software Engineer

    Dynamic Technologies · 2023 — 2024
    Developed backend systems using Node.js and PostgreSQL for e-commerce and real-time sports betting platforms, accommodating concurrent sessions and live odds feeds. Optimized critical database queries and implemented indexing strategies, resulting in a significant reduction in average API response time.

Skills & Expertise

Blockchain DeveloperFrontend DeveloperBackend DeveloperTechnical Recruiter

Education

  • Bachelor of Science in Software Engineering
    Addis Ababa Science and Technology University · 2019 — 2025