Full-Stack Engineer

TempleNdukwu

I architect and ship production systems. 5+ years across fintech, AI, travel, and web3. I have built backend platforms and frontend dashboards, shipped apps to the App Store, led teams, and turned business problems into scalable code.

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Career

Experience

Aug 2024 to Present

Tech Lead / Backend Engineer

Packy AI / Adelaide, Australia

  • Built the entire backend platform with Node.js, TypeScript, and GraphQL, defining service structure, schema design, and API patterns
  • Designed dual-database architecture using PostgreSQL and MongoDB for relational and document workloads
  • Integrated OpenAI and Claude models into itinerary generation and personalization workflows
  • Implemented Apple, Google subscriptions and Stripe payment flows with webhooks
  • Set up observability with Sentry and real-time alerts to catch issues before users do
Node.jsTypeScriptGraphQLPostgreSQLMongoDBAWSSentry
Sep 2024 to Present

Senior Frontend Developer

Figy B.V / Netherlands

  • Built wealth management dashboard handling large financial datasets with React, Remix, and GraphQL
  • Reduced initial load time by 65% through code splitting, lazy loading, and bundle optimization
  • Created reusable component library of 20+ financial UI elements, cutting feature delivery time
  • Implemented real-time data updates via GraphQL subscriptions for live portfolio metrics
ReactRemixTypeScriptGraphQLNivo
Jan 2024 to Jan 2025

Full Stack Developer

ID8R / Adelaide, Australia

  • Reduced application load time from 20 to 30 seconds down to 1 to 2 seconds through refactoring and API optimization
  • Integrated multiple web3 APIs including Alchemy, Moralis, and Dynamic for NFT workflows
  • Implemented subscription billing with Paddle and authentication flows using Clerk
  • Participated in hiring, sprint planning, and cross-functional coordination
Next.jsTypeScriptPrismaAWS RDSWeb3
Sep 2023 to Feb 2024

Frontend Developer

Koryntia / London, UK

  • Built the user dashboard using Next.js, TypeScript, Tailwind, Redux Toolkit, and Wagmi
  • Implemented multi-language and internationalization support
  • Applied performance best practices including lazy loading, memoization, and component abstraction
  • Integrated blockchain interactions using Ethers.js and web3 tooling
Next.jsTypeScriptTailwindReduxWagmiEthers.js
Sep 2022 to Nov 2023

Software Developer

Nkowa Okwu LLC / New York, United States

  • Built a React and Python Wikidata tool for structured Igbo language dataset extraction and publishing
  • Developed the Igbo API documentation platform using Nextra and React
  • Maintained open-source frontend and backend systems using Firebase, Next.js, Tailwind, and Chakra UI
ReactPythonNextraFirebaseNext.jsChakra UI
Mar 2020 to Feb 2023

Frontend Developer

Flave Console (Now Aurray.ai) / Lagos, Nigeria

  • Contributed to a multi-tenant school management system using React, TypeScript, Redux, and API integrations
  • Built template generation and export features using HTML, CSS, Bootstrap, and JavaScript
  • Worked with backend teams to integrate APIs and deliver production features used by schools
ReactTypeScriptReduxBootstrapREST APIs

Shipped Products

Projects in Production

Packy AI

Tech Lead / Backend Engineer

AI-powered travel planning app. Built the entire backend platform with Node.js, GraphQL, and dual-database architecture. Integrated OpenAI and Claude for itinerary generation.

Node.jsGraphQLPostgreSQLMongoDBOpenAIClaude API

Figy

Senior Frontend Developer

Wealth management platform for high-net-worth individuals. Built the frontend dashboard with React and Remix, handling large financial datasets with real-time GraphQL subscriptions.

ReactRemixTypeScriptGraphQLNivo Charts

Nkowa Okwu

Software Developer

Igbo language API and dictionary. Built the Wikidata extraction tool with React and Python, and developed the API documentation platform using Nextra.

ReactPythonNextraFirebaseWikidata

Beyond Charging

Backend Developer

EV charging platform covering 43,000+ stations across 13 US states. Built backend endpoints for calendar features, promotions, and integrated Tesla and Enode APIs.

Node.jsTypeScriptTesla APIEnode API

Koryntia

Frontend Developer

DeFi lending protocol on Arbitrum. Built the user dashboard with Next.js, TypeScript, and Wagmi. Implemented multi-language support and blockchain interactions.

Next.jsTypeScriptWagmiEthers.jsRedux

Reeple

Frontend Developer

Fintech platform enabling African immigrants access financial services and remittances across 12+ countries. Built the custom landing page from scratch, fully SEO optimized, delivered under tight deadline. Integrated blog with WordPress API.

Next.jsTypeScriptTailwind CSSSEOWordPress API

Toolkit

Skills

Languages & Frameworks

TypeScriptJavaScriptPythonReactNext.jsRemixNode.jsExpress

API & Backend

GraphQLREST APIsSchema DesignWebhooksAuth SystemsJWTReal-time Subscriptions

Databases & Cloud

PostgreSQLMongoDBPrismaAWSGCPAWS RDSS3Cloudinary

Payments & AI

StripePaddleApple SubscriptionsGoogle Play BillingOpenAI APIClaude APILLM Workflows

Get in Touch

Let's build something impactful.

Open to medium, senior and tech lead roles, contract work, and technical advisory. If you are building something interesting in fintech, AI, or developer tools, I would like to hear about it.