Ifeoluwa Sanni
@ifeoluwasanni
Senior full-stack & AI engineer. TypeScript, React/Next.js, Node, Python. Ship production Claude/agentic tooling.
NigeriaWhat I'm looking for
I'm a senior full-stack engineer with 4+ years building production systems across web and blockchain, currently a Lead Full-Stack Developer at Confidios, a UK legal-technology firm. I architect and build our Access Policy Engine, an agentic orchestration system combining zero-knowledge-proof generation, policy evaluation, and Arweave-anchored audit trails — typed end-to-end in Node.js/TypeScript on AWS.
My core stack is TypeScript, React/Next.js, Node.js, and Python, with production experience in AWS (DynamoDB, S3, ECS, Lambda, IAM), Terraform, Docker, and PostgreSQL. I work with AI as part of how I ship: I have integrated the Anthropic Claude API into production tooling with structured outputs, multi-turn state, and MCP server orchestration.
Before Confidios, I spent two years at Delight Digital Concepts International building and shipping four full-stack DApps from scratch; React/Next.js frontends with Solidity contracts on Ethereum mainnet owning the full loop from requirements through deployment.
I am active in open source: a smart-contract code reviewer for the GoodDollar Protocol, an OnlyDust/Drips verified contributor across 25+ repositories, and open-source DevRel at Dev3Pack. My contributions include integrating the Helios light client into the Enkrypt wallet (PR #792) and fixing Ethereum consensus clients.
Recognition includes 1st place at the EthAccra hackathon for Adwumapa, a talent-hiring platform I built end-to-end, and selection as a Women in Ethereum Protocol Fellow (Cohort IV, Ethereum Foundation) and a DevConnect Scholar. I also write technically on Medium and Hashnode, and mentor women entering blockchain in Nigeria.
I care about building things that hold up under real-use systems where correctness, security, and clarity actually matter and I'm looking for senior full-stack or frontend engineering roles where I can own work end to end.
Experience
Work history, roles, and key accomplishments
Smart Contract Code Reviewer
GoodDollar Protocol
Mar 2026 - Present (4 months)
Reviews Solidity smart contract PRs for correctness, security, and edge-case handling on a live UBI protocol. Provides structured feedback on vulnerabilities, reentrancy risks, access control gaps, and economic attack vectors.
Open-Source DevRel
Dev3Pack
Jan 2026 - Present (6 months)
Serves as open-source DevRel, onboarding developers into ZK proof and privacy tooling through learning materials and workshops. Supports cohort delivery for a ZK Proof & Privacy program and bridges ZK concepts into practical developer adoption.
Lead Full-Stack Blockchain Developer
Confidios (Legal Technology)
Jun 2025 - Present (1 year 1 month)
Architecting and building the Access Policy Engine (APE), an agentic orchestration system that combines ZKP proof generation, policy evaluation, and Arweave-anchored audit trails. Builds typed end-to-end services and integrates production AI tooling, infrastructure, and StarkNet smart contract features.
Web3 Frontend Developer
OnlyDust & Drips
Sep 2024 - Present (1 year 10 months)
Contributes to open-source Solidity and Cairo repositories with production use by live protocols. Builds and maintains Web3 frontend-related integrations including a trust-minimised Ethereum light client, adversarial RPC testing tools, and fixes related to EIP-7702 gas estimation semantics.
As a Virtual Assistant II and Social Media Executive, I create engaging content for various social media platforms, design promotional materials, and develop multimedia presentations to enhance company visibility.
Full-Stack Web3 Developer
Delight Digital Concepts International
Aug 2022 - Sep 2024 (2 years 1 month)
Built and shipped full-stack DApps end-to-end, including React/Next.js frontends, Solidity smart contracts, and deployment to Ethereum mainnet. Worked across frontend, on-chain logic, IPFS storage integration, and wallet connection libraries.
Devconnect Scholar
Ethereum Foundation
Sep 2023 - Nov 2023 (2 months)
Engaged as a Devconnect Scholar, where I wrote technical artifacts to support the foundation's initiatives and projects.
Devconnect Scholar
Ethereum Foundation
Sep 2023 - Sep 2023 (0 months)
Wrote technical artifacts for the Ethereum Foundation, contributing to the development of blockchain technology documentation.
Web3 Frontend Developer (Contract)
Aya Versity
Nov 2022 - Apr 2023 (5 months)
Compiled and tested Solidity smart contracts for client products and collaborated with design and engineering to ship on deadline. Awarded Most Creative Web3 Frontend Developer for Ayaversity Cohort 1.
Volunteer Writer
Acanbsite
Nov 2022 - Dec 2022 (1 month)
Contributed as a Volunteer Writer by creating informative blogs for the company's website, enhancing online presence and engagement.
Volunteer Writer
Acanbsite
Nov 2022 - Dec 2022 (1 month)
Contributed as a volunteer writer by creating informative blogs for the company's website, enhancing its content and outreach.
Education
Degrees, certifications, and relevant coursework
Columbia University
Activities and societies: In progress
Education at Columbia University is listed as in progress.
Shefi
DevConnect Scholar, DevConnect / Web3
Activities and societies: Jan 2025
Selected as a DevConnect Scholar in Jan 2025 with Shefi.
Ethereum Foundation
Solidity Smart Contract Development, Solidity / Smart Contracts
Activities and societies: Oct 2025
Completed Solidity smart contract development training in Oct 2025 through the Ethereum Foundation.
Web3Bridge
Blockchain Full Course, Blockchain
Activities and societies: Sep 2025
Completed the Blockchain Full Course in Sep 2025 via Web3Bridge.
Ethereum Foundation & Next Billion Team
Aya Web3 Fellowship, Web3
Activities and societies: 2023
Completed the Aya Web3 Fellowship in 2023 with the Ethereum Foundation and the Next Billion team.
Ayaversity
HTML, CSS & JavaScript for Web Developers, Web Development
Activities and societies: Mar 2023
Completed a web development course covering HTML, CSS, and JavaScript for web developers in Mar 2023.
Johns Hopkins University (Coursera)
Prompt Engineering & Programming, Prompt Engineering
Activities and societies: Jul 2022
Completed a course on Prompt Engineering & Programming in Jul 2022 through Johns Hopkins University (Coursera).
Obafemi Awolowo University
Bachelor of Science, Botany
2002 - 2008
Earned a B.Sc. in Botany at Obafemi Awolowo University from 2002 to 2008.
Ethereum Foundation
Women in Ethereum Protocol Fellowship (Cohort IV), Ethereum Protocol
Activities and societies: Cohort IV
Completed the Women in Ethereum Protocol Fellowship (Cohort IV) with the Ethereum Foundation.
Tech stack
Software and tools used professionally
Availability
Location
NigeriaAuthorized to work in
Website
ifeoluwaayosanni.vercel.appPortfolio
ifeoluwaayosanni.vercel.appSocial media
Job categories
Interested in hiring Ifeoluwa?
You can contact Ifeoluwa and 90k+ other talented remote workers on Himalayas.
Message IfeoluwaGet matched with your dream remote job
Sign up now and join over 250,000+ remote workers who receive personalized job alerts, curated job matches, and more for free!
