David Olufemi

Web & AI Product Engineer

devdave.devdevdavedotdev@gmail.com

Professional Summary

Web & AI Engineer with 5+ years building production web applications, backend APIs, and AI-powered products. Expert in React/TypeScript frontends, Node.js backends, and integrating LLMs (GPT-4, Claude, Gemini, Llama). Built multi-provider AI chat platforms, vision/multimodal applications, and real-time streaming systems. Strong foundation in engineering principles with Civil Engineering degree (1st Class Honours).

Technical Skills

Frontend: React, TypeScript, Next.js, TanStack (Router, Query, Start), Tailwind CSS, Shadcn UI, Zustand
Backend: Node.js, Express, REST APIs, WebSockets, Serverless (Cloudflare Workers), Authentication/Authorization
AI/LLM Integration: Vercel AI SDK, OpenRouter, OpenAI API, Anthropic API, Google Gemini, LangChain, RAG, Prompt Engineering
Databases & Infrastructure: PostgreSQL, Convex, Supabase, Neon, Cloudflare, Vercel, Docker, CI/CD, Git
AI-Assisted Development: Cursor IDE, Claude Code CLI, GitHub Copilot, AI code review, automated workflows

Professional Experience

Web Engineer, Staffshift, A24Group

2022 – Present

Medical staffing platform • South Africa, UK, US markets

  • Owned full-stack features end-to-end: shift scheduling, payments, dashboards, and real-time chat systems
  • Built backend APIs and integrated third-party services for payment processing and notifications
  • Developed internal UI component libraries used across multiple product teams
  • Mentored junior developers; contributed to technical specs and team workflows

Computer Specialist, FEMRON Ltd

Sep 2016 – Apr 2020

Full-time • Osun, Nigeria • 3 years 8 months

  • Managed IT infrastructure and provided technical support for business operations
  • Developed internal tools and automated workflows to improve operational efficiency

Civil Engineering Intern, Nexant Consulting LLP

Aug 2021 – May 2022

Internship • Lagos, Nigeria • 10 months

Key Projects

Multi-Provider AI Chat Platform

, Full-stack chat platform supporting 11+ LLMs (GPT-4o, Claude, Gemini, Llama, DeepSeek) with streaming responses, intelligent routing via OpenRouter, and cost optimization.

Vision & Multimodal Chat

, Image-aware chat interface using GPT-4o Vision for image analysis, OCR, and contextual Q&A with uploaded images.

AI Image Studio

, Image generation/editing suite with DALL-E 3 and Flux, featuring prompt-based generation and image-to-image editing workflows.

Education

Bachelor of Engineering in Civil Engineering, 1st Class Honours

Obafemi Awolowo University, Nigeria

Activities: Chess Team, STEM Tutoring

2016 – 2022