available · Web3 · AI · Fintech

Joshua
Ojedapo

Senior Full-Stack Developer with 7+ years building AI-powered agents, Web3 platforms, and fintech systems at scale. I architect end-to-end — from smart contracts to user interfaces.

7+
// years
5+
// companies
3
// specialisms
joshua@portfolio ~
 whoami
joshua_ojedapo

 cat skills.json
{ "ai": ["LangChain","OpenAI"],
"web3": ["Solidity","Ethers.js"],
"stack": ["React","Next.js","Node"] }

 echo $location
Lagos, Nigeria 🇳🇬

 git log --oneline -3
a4f21b3 feat: RAG pipeline for agent memory
c9e84d1 feat: DVPN chrome extension MV3
f2b3a7e feat: NFT marketplace contracts

 status --open-to-work
✓ Open to opportunities
 
scroll to explore

Engineer.
Architect.
Builder.

Based in Lagos, Nigeria, I'm a Senior Full-Stack Developer specializing in the intersection of AI automation, Web3 infrastructure, and high-scale fintech. I don't just write code — I architect systems that solve real problems at scale.

Currently building autonomous AI agent systems at PaltextAI with LangChain and LLM pipelines. Previously led Web3 platform development at MASQ, OpenETC, and Unifty, and built core fintech infrastructure at Fuspay across 4+ years.

I believe in end-to-end ownership — from database schema to pixel-perfect UI. Whether it's Solidity contracts, an LLM orchestration pipeline, or a React dashboard, I ship products that scale.

// Languages
TypeScriptJavaScript PythonSolidityPHP
// Frontend
ReactNext.js Vue.jsNuxt.js ElectronChrome MV3
// Backend & APIs
Node.jsExpress NestJSWebSocketsGraphQL
// AI / Automation
LangChainOpenAI APIs RAG PipelinesHuggingFace
// Blockchain
Ethers.jsWeb3.js HardhatIPFSEthereum
// DevOps & Data
DockerAWS MongoDBPostgreSQL RedisCI/CD

Where I've
Shipped.

Jan 2025 — Present
PaltextAI
Contract · Remote
Senior Full-Stack Developer
  • Architected a scalable autonomous agent system handling multi-step business workflows across messaging platforms, significantly reducing manual workload.
  • Integrated LLMs and RAG pipelines using LangChain, enhancing contextual reasoning and decision-making accuracy in production.
  • Designed backend systems for agent logic, task scheduling, memory, and integration orchestration under high load.
  • Built React/Next.js dashboards for configuring agents, monitoring tasks, and visualizing workflow outputs.
TypeScriptReactNext.js LangChainOpenAINode.js MongoDBDockerAWS
Sept 2022 — Feb 2025
MASQ Browser
New Zealand · Remote
Senior Web3 Full-Stack Developer
  • Developed core DVPN Chrome Extension with privacy/VPN features, MASQ token tracking, and blockchain interaction via Ethers.js with Manifest V3 compliance.
  • Built a full-featured Electron browser with tabs, bookmarks, ad-blocking, HTTPS enforcement, and tracking protection.
  • Secured IPC communication via Electron's Context Bridge, mitigating common vulnerability vectors.
  • Led deployment pipelines using PM2 and NGINX, improving scalability and uptime.
ElectronReactTypeScript Ethers.jsChrome MV3Node.js MongoDBPM2NGINX
Mar 2022 — Sept 2022
OpenETC
Netherlands · Remote
Technical Lead / Senior Web3 Full-Stack Dev
  • Architected and delivered a full NFT marketplace supporting high-volume minting, sales, auctions, and transfers.
  • Built secure Solidity smart contracts for all marketplace logic with decentralized IPFS storage.
  • Designed advanced search and filtering systems, enabling faster NFT discovery and boosting user engagement.
TypeScriptReactNext.js SolidityHardhatWeb3.jsIPFS
Sept 2021 — Mar 2022
Unifty
Hungary · Remote
Web3 Frontend Developer
  • Built an NFT Gallery Application with optimized rendering and fast load times.
  • Integrated Web3 for smart contract interactions and wallet connectivity.
  • Developed PHP/MySQL backend APIs and analyzed user behavior to optimize conversions.
ReactTypeScript Web3PHPMySQL
Oct 2020 — May 2021
Huobi Global
Hong Kong · Remote
Frontend Developer
  • Developed Web3 applications for NFT Marketplace, Staking, and DAO using Vue.js.
  • Built Solidity smart contracts for marketplace and staking functionalities.
  • Created reusable API communication libraries, streamlining team productivity.
Vue.jsVuex SolidityWeb3SCSS
May 2017 — Sept 2021
Fuspay
Nigeria
Full-Stack Developer
  • Architected core fintech systems (Finswich & Intrapay) supporting large-scale digital transactions over 4+ years.
  • Built secure financial APIs and gateways with real-time transaction processing and fraud detection.
  • Developed REST and GraphQL APIs for partner integrations, optimized databases for high-traffic environments.
Vue.jsNuxt.jsNode.js MongoDBMySQLGraphQL

What I've
Built.

A selection of systems, platforms, and products shipped in production.

🤖
AI Agent System
PaltextAI · 2025

Scalable autonomous agent platform handling multi-step business workflows. LLMs integrated with RAG pipelines for contextual decision-making, memory persistence, and task scheduling at scale.

LangChainOpenAI Next.jsTypeScriptMongoDB
🔒
MASQ DVPN Extension
MASQ Browser · 2022–2025

Privacy-first Chrome Extension with DVPN, MASQ token tracking, country switching, and blockchain interaction. Built to Manifest V3 standards with optimized background scripts.

Chrome MV3Ethers.js TypeScriptReact
🌐
MASQ Privacy Browser
MASQ Browser · 2022–2025

Full Electron-based privacy browser with tabs, bookmarks, ad-blocking, HTTPS enforcement, and tracking protection. IPC secured via Context Bridge. Deployed with PM2 + NGINX.

ElectronReact Node.jsNGINX
🎨
NFT Marketplace
OpenETC · 2022

Full-stack NFT marketplace supporting high-volume minting, sales, auctions, and transfers. All Solidity smart contracts written from scratch with IPFS decentralized asset storage.

SolidityHardhat IPFSNext.jsWeb3.js
💰
Finswich & Intrapay
Fuspay · 2017–2021

Core fintech transaction systems with real-time processing, risk and fraud detection, secure financial APIs, and GraphQL partner integrations optimized for high-traffic production.

Vue.jsNode.js GraphQLMySQLMongoDB
🏛️
Huobi NFT & Staking DAO
Huobi Global · 2020–2021

Web3 applications for NFT marketplace, token staking, and DAO governance. Built reusable API communication libraries and optimized for cross-chain blockchain interactions.

Vue.jsSolidity Web3Vuex
Let's
Build Something.

Open to senior frontend, full-stack, and Web3 engineering roles. Especially interested in AI tooling, Web3 infrastructure, and fintech. Let's build something that matters.

Send me an email