I am a Full Stack Developer with 4+ years building production systems across React, TypeScript, Next.js, Python, and Node.js. I love turning ambiguous requirements into robust, scalable software and have deep experience integrating LLMs and AI agents into real products. I’ve built Rora AI, a production RAG pipeline using FastAPI and LangChain; VisitAid, a real-time autonomous AI agent deployed in 48 hours; ProxySock, a live B2B SaaS handling 3,000+ daily transactions. I work with an ownership mindset in small, senior, remote teams and routinely use Cursor and Claude daily for core development tasks, async programming, SQL optimization, and cloud deployment.

Mark Chukwuma otuya

I am a Full Stack Developer with 4+ years building production systems across React, TypeScript, Next.js, Python, and Node.js. I love turning ambiguous requirements into robust, scalable software and have deep experience integrating LLMs and AI agents into real products. I’ve built Rora AI, a production RAG pipeline using FastAPI and LangChain; VisitAid, a real-time autonomous AI agent deployed in 48 hours; ProxySock, a live B2B SaaS handling 3,000+ daily transactions. I work with an ownership mindset in small, senior, remote teams and routinely use Cursor and Claude daily for core development tasks, async programming, SQL optimization, and cloud deployment.

Available to hire

I am a Full Stack Developer with 4+ years building production systems across React, TypeScript, Next.js, Python, and Node.js. I love turning ambiguous requirements into robust, scalable software and have deep experience integrating LLMs and AI agents into real products.

I’ve built Rora AI, a production RAG pipeline using FastAPI and LangChain; VisitAid, a real-time autonomous AI agent deployed in 48 hours; ProxySock, a live B2B SaaS handling 3,000+ daily transactions. I work with an ownership mindset in small, senior, remote teams and routinely use Cursor and Claude daily for core development tasks, async programming, SQL optimization, and cloud deployment.

See more

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
See more

Language

English
Fluent

Work Experience

Frontend Engineer at Jobin.cloud
December 1, 2024 - Present
Architect and ship production-ready React/TypeScript interfaces for a B2B SaaS platform, including complex dashboards, advanced filtering, real-time charts, and large dataset rendering with optimized performance. Design and maintain a reusable component library with design tokens and full TypeScript coverage. Translate Figma mockups into pixel-perfect, responsive components in collaboration with UI/UX designers. Integrate REST and GraphQL APIs (auth flows, real-time feeds, business metrics) with proper loading and error states. Use TanStack Query for server-state management. Contribute to code reviews and testing with Jest and React Testing Library.
Full Stack Developer at ProxySock
November 1, 2024 - May 31, 2025
Built a complete B2B SaaS platform solo, designing and shipping the frontend, backend APIs, PostgreSQL schema, payment integration, and cloud infrastructure entirely independently. Implemented subscription management, webhook processing, authentication, and usage tracking with async patterns throughout. Wrote and optimized multi-tenant SQL queries for 3,000+ daily transactions. Improved platform reliability with Redis caching, Sentry observability, and CI/CD pipelines. Caught a critical security vulnerability in LLM-generated code before shipping.
Full Stack Developer (Frontend-Led) at ProxySock
November 1, 2024 - May 1, 2025
Designed and built the frontend for a live B2B financial SaaS from zero to production, including subscription pages, Stripe checkout, invoice history, real-time usage dashboards, and RBAC. Implemented real-time dashboards with WebSockets, and end-to-end Stripe integration with optimistic UI updates and robust error handling. Built a reusable, typed component library and ensured cross-browser, responsive design. Set up GitHub Actions CI/CD and Vercel deployments. Identified and mitigated a Stripe webhook security vulnerability during review.
Junior Frontend Developer at Proficient Computing
June 1, 2021 - May 1, 2022
Built responsive, accessible UI components for e-commerce and booking platforms; reduced checkout friction through careful interaction design. Introduced Jest and Cypress automated test coverage from 0% to 85%, establishing reliable testing practices and improving quality across features.
WordPress Web Developer at Jehoworld
January 1, 2019 - June 1, 2021
Built and maintained professional client WordPress sites remotely; created custom themes, plugin integrations, REST API connections, and performance optimizations across multiple projects.

Education

BSc (Hons) Computer Science at Edinburgh Napier University, Scotland
January 11, 2030 - January 1, 2026
Microverse Full Stack Bootcamp at Microverse
January 1, 2022 - January 1, 2023
BSc (Hons) Computer Science at Edinburgh Napier University
January 11, 2030 - January 1, 2026
Full Stack Web Development Bootcamp at Microverse
January 1, 2022 - December 31, 2023

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Financial Services, Professional Services, Computers & Electronics, Media & Entertainment, Education