Samson Adedeji
@samsonadedeji
Backend developer building Web3 APIs, CLI tools, and safety-first integrations.
What I'm looking for
I’m a self-taught backend developer with 1 year of focused experience building and shipping real-world APIs, CLI tools, and Web3 integrations. I’m comfortable owning the full backend lifecycle—from architecture and auth to deployment—and I publish tools that directly help developers move faster.
In my projects, I built a smart contract registry CLI that syncs deployed contracts from Foundry broadcast files into a project-local registry, including multi-network support, ABI management, and Git auto-commit/push integration. I also designed and built a transaction verification API for AI agents executing DeFi swaps, adding multi-layer checks like calldata parsing, semantic validation, router allowlists, and structured error responses.
I’ve also created an event monitoring & pattern detection REST API that ingests events, applies configurable rule-based pattern detection, and returns human-readable insights. I deploy on Render and use clean architecture practices (Routes → Controllers → Services) with JWT auth, MongoDB persistence, and rate limiting—backed by strong foundations from Full Stack Open (University of Helsinki).
Experience
Work history, roles, and key accomplishments
Backend Developer (Node.js)
Self-Taught
Jan 2024 - Present (2 years 5 months)
Built and shipped production-grade Node.js/TypeScript APIs and Web3 tooling, including an NPM CLI that syncs Foundry smart contract deployments into a local registry. Developed a transaction verification API for AI agents and an event monitoring service with JWT auth, MongoDB persistence, and rate limiting.
Web3 Backend Developer
Self-Taught
Jan 2024 - Present (2 years 5 months)
Created open-source developer tools and backend services focused on Web3 infrastructure, including multi-network smart contract indexing and safe DeFi transaction validation for autonomous agents.
Education
Degrees, certifications, and relevant coursework
University of Helsinki
Completed program (certificate not specified), Full Stack Development
2024 -
Activities and societies: Built and shipped 3 real-world projects across Web2 and Web3; published and uses an open-source NPM package for Foundry/Web3 development.
Completed Full Stack Open, covering Node.js, Express, MongoDB, testing, and TypeScript, alongside building and shipping projects in Web2 and Web3 domains.
Tech stack
Software and tools used professionally
Availability
Location
Authorized to work in
Portfolio
npmjs.com/package/clinch-cliSalary expectations
Social media
Job categories
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