Pius Donkor
Senior Full-Stack Engineer
5+ years architecting React & TypeScript applications. Specializing in AI integration, real-time systems, and enterprise-scale frontend architecture.
About Me
I'm Pius Donkor, a Senior Full-Stack Engineer with 5+ years of experience building high-performance web applications in agile, remote-first environments.
My expertise lies in React and TypeScript, where I specialize in crafting reusable UI component libraries and scalable frontend architectures. I've engineered machine-learning integrated marketplaces, real-time data platforms, and enterprise HR systems—always with a focus on code quality, security, and developer experience.
Beyond coding, I'm passionate about mentorship—conducting daily code reviews, driving CI/CD automation with GitHub Actions, and helping teams level up their engineering practices. I believe great software is built by empowered teams.
Skills & Expertise
A comprehensive toolkit honed over 5+ years of building production applications. Hover over any category to explore the technologies I work with.
Frontend
State
Backend
Database
DevOps
Security
Featured Projects
A selection of projects that demonstrate my ability to solve complex problems and deliver tangible business results.
AccommodationLink
House hunters in Ghana faced fragmented listings and no pricing guidance, while landlords struggled to set competitive rates. Engineered a React-based frontend integrating with a machine-learning pricing engine to provide real-time optimal pricing and a seamless negotiation interface.
Key Outcomes
- Implemented AI-assisted pricing that improved listing accuracy by 30%
- Built optimistic UI rendering for high-frequency negotiation updates
- Reduced average listing time by 40% through intelligent matching
JaniTime
Businesses needed a unified platform for employee management, payroll processing, and compliance with Gusto API integration. Developed a secure, multi-tenant frontend with complex form validations, financial data visualizations, and robust authentication flows.
Key Outcomes
- Integrated with Gusto API for seamless payroll processing
- Implemented OWASP-compliant authentication for sensitive employee data
- Built complex financial reporting dashboards used by 500+ employees
The Wild Oasis
Hotel staff needed an intuitive internal tool to manage bookings, cabins, and guest data without complex training. Designed a flexible admin dashboard using the Compound Component Pattern in React, with React Query for efficient server-state management.
Key Outcomes
- Created highly reusable UI components (Modals, Tables, Menus)
- Eliminated complex global state boilerplate with React Query caching
- Reduced new feature development time by 35% via component library
Fashions Rhythm
Fashion retailer needed a fast, mobile-first shopping experience to compete with larger platforms. Built a responsive e-commerce frontend with optimized asset loading, smooth animations, and a streamlined checkout flow.
Key Outcomes
- Achieved sub-2 second load times on mobile networks
- Improved mobile engagement by 60% with intuitive UX
- Implemented persistent cart with local storage sync
Worldwise
Travelers wanted an intuitive way to log visited places and plan future trips on an interactive map. Built an interactive mapping interface with Leaflet.js, featuring real-time location tracking, custom markers, and trip history.
Key Outcomes
- Integrated real-time geolocation for automatic place logging
- Built custom map controls for an intuitive user experience
- Implemented efficient data persistence for offline access
Pius Tours
Tour operators needed a modern platform to showcase tours and handle bookings securely. Developed a Node.js/Express backend with Pug templating for SSR, integrated with secure payment processing and user authentication.
Key Outcomes
- Built end-to-end booking flow with secure payment integration
- Implemented JWT-based authentication for user accounts
- Deployed on Render with automated CI/CD pipeline
Emergency Room Hospital Management System
Emergency departments lacked an integrated system to coordinate care, manage supplies, and track patient flow in real-time, causing delays and inefficiencies. Built a modular, role-based system with real-time tracking (Socket.io), triage workflows, inventory & pharmacy modules, and a billing engine — all accessible via secure, responsive web interfaces.
Key Outcomes
- Improved patient throughput by streamlining triage and bed allocation workflows
- Reduced medication stockouts through integrated inventory and pharmacy tracking
- Enabled faster billing and claims processing with structured financial workflows
E-Commerce Platform & Admin Dashboard
Retailers needed a performant, secure online storefront and admin tools that shared consistent business logic and APIs. Implemented a Next.js storefront with server-side rendering, a protected admin dashboard for inventory & orders, secure payment integration, and analytics dashboards for conversions and stock levels.
Key Outcomes
- Delivered a single API surface for both storefront and admin, reducing integration overhead
- Improved conversion rates through performance and UX optimizations
- Provided inventory visibility and automated reorder alerts for store managers
Academic Portfolio & CMS
Academics and researchers needed a simple, secure way to publish and manage research notes, long-form content, and curated learning resources with fine-grained access control. Built a lightweight CMS with role-based access control, markdown/MDX support, SEO optimizations for long-form content, and an admin dashboard for content publishing and analytics.
Key Outcomes
- Enabled secure, authenticated publishing workflows for researchers
- Improved discoverability of long-form content via SEO and structured metadata
- Simplified editorial workflows with scheduled publishing and revision history
Work Experience
Frontend Developer
Core frontend engineer for a student-led engineering team delivering web products and internal tooling for campus initiatives.
Key Achievements
- Built and maintained responsive, accessible UIs used by hundreds of students across multiple campus projects
- Introduced a small component library and design tokens (Tailwind + utility-first patterns) that sped up new feature delivery
- Improved cross-device performance and reduced bundle size through code-splitting and lazy-loading
- Mentored junior teammates and interns; established code review practices and lightweight design handoffs from Figma
Contract Frontend / Full‑Stack
Delivered client-facing websites, landing pages and small SaaS features as a freelance engineer alongside core team work.
Key Achievements
- Delivered 20+ client engagements ranging from brochure sites to lightweight SaaS prototypes
- Improved conversion-focused landing pages by applying performance and accessibility best practices
- Set up simple CI/CD, deploy pipelines and analytics for small businesses to track feature impact
Full‑Stack Engineer
Full‑stack engineer working on multi‑tenant SaaS products — from Next.js frontend work to backend services and deployments.
Key Achievements
- Led development of the Janitime SaaS product — architected the Next.js frontend and integrated real‑time features
- Designed and implemented authentication flows including email/OTP and WebAuthn-ready hooks to support secure sign-ins
- Containerized services and improved developer DX with Docker and GitHub Actions CI/CD pipelines
- Optimized Core Web Vitals and accessibility, materially improving SEO and page speed scores for client applications
- Collaborated with backend (Express/Mongoose) and infra teams to integrate Redis for caching and PostgreSQL for transactional data where needed
Senior Engineer (Part‑time) & Mentor
Part‑time senior engineer at an AI‑focused startup building SaaS products, and running mentorship programs for early engineers.
Key Achievements
- Built production features that integrate AI-assisted workflows into SaaS products (model orchestration, inference plumbing, UI/UX for prompts)
- Co-ran mentorship cohorts and technical workshops to onboard junior engineers into modern frontend and full‑stack practices
- Introduced testing and observability patterns to improve reliability of AI-driven features in production
What People Say
Sarah Chen
VP of Engineering at TechCorp Global
"Exceptional engineer who consistently delivers high-quality solutions. Their ability to architect scalable systems and mentor junior developers has been invaluable to our team's success."
Michael Rodriguez
CTO at InnovateLabs
"One of the most talented full-stack engineers I've worked with. They tackled complex technical challenges with creativity and precision, always delivering ahead of schedule."
Emily Johnson
Product Manager at StartupXYZ
"A true problem solver who bridges the gap between technical and business requirements. Their contributions directly impacted our conversion rates and user satisfaction."