Ernest Kumashie
Frontend Developer (Full Stack Aware)
Building fast, scalable, and visually polished web applications with modern frontend technologies. I create exceptional user experiences with React, Next.js, and modern UI engineering practices.
Industry Quality Standard
Industry Quality Standard
Industry Quality Standard
role: "Frontend Engineer"
focus: ["Next.jsand also", "UI Optimization", "Animations"]
backend_capability: true
optimization: "Frictionless UX"
Connecting clean design with strong code.
I build frontend experiences that are visually polished, fast, and resilient, regardless of the design direction. Whether it's a dark SaaS dashboard, a bright brand site, or anything in between, I bring atomic design systems, fluid transitions, and data-rich interfaces to life.
Every project I take on is grounded in layout precision, type safety, and reusable component architecture, whether it's a mobile app or a complex web platform.
UI Engineering Mindset
Treating UI as a rigorous engineering discipline. I write clean, highly semantic React components structured with exact performance and scalability budgets.
Performance First
Obsessed with optimizing Web Vitals. I minimize cumulative layout shifts, implement adaptive responsive image delivery, and aim for 99+ Lighthouse metrics.
Full-Stack Aware
Experienced with REST APIs, Prisma, Node.js, and PostgreSQL, allowing me to build robust interfaces that integrate and cache backend data correctly.
Professional Experience & Impact
Leading initiatives at the intersection of aesthetic design and stable performance, creating long-term value for clients and internal development teams.
Lead UI & Frontend Developer
- ↳Architected and scaled modern web applications using React, Next.js, TypeScript, and Tailwind CSS, driving the successful release of enterprise POS systems, order management platforms, and a comprehensive waste collection ecosystem.
- ↳Optimized application performance and core web vitals, significantly reducing initial page load times and ensuring flawless cross-browser compatibility and A11y accessibility compliance.
- ↳Integrated complex REST APIs and state management layers, ensuring seamless real-time data synchronization between the frontend and backend microservices.
- ↳Led collaboration workflows with UI/UX designers, backend engineers, and stakeholders using Jira to break down high-level project specs into actionable, high-quality development sprints.
React Native Developer
- ↳Developed and optimized cross-platform mobile applications using React Native, focusing on smooth native-like performance and responsive UI.
- ↳Implemented localized caching strategies and robust state management layers, minimizing redundant network requests and improving application offline capabilities.
- ↳Collaborated within cross-functional teams to scope, build, and deploy custom customer-facing features tailored to specific client business constraints.
Fullstack Developer Intern
- ↳Implemented secure authentication layers with Next.js, integrating Role-Based Access Control (RBAC) and session management token handling.
- ↳Built full-stack components for an employee management dashboard and a production-grade social application.
- ↳Gained hands-on proficiency with end-to-end continuous integration pipelines and automated deployment workflows.
Technical Stack & Domain Expertise
Consistently evaluating, pruning, and building on modern web tools to preserve lightweight runtimes and precise visual accuracy.
Frontend Focus
Core technologies for building high-performance interfaces
API Integration
Connecting frontend interfaces to backend services
Tools & Infrastructure
Platforms and services for deployment and performance
Selected Contributions & Code Case Studies
A curated selection of production-grade systems emphasizing layout performance, real-world metrics, and clean engineering.
Bayareech
2026A full-featured multi-vendor marketplace where independent sellers can list products, manage inventory, and process orders through a unified platform.
Wasteman GH
2026A cross-platform mobile application for Wasteman Ghana, connecting their waste management services to clients through an intuitive Expo frontend backed by a Django REST Framework API.
Saron
2025A React Native mobile application connecting users with luggage and cargo transportation services, enabling seamless booking and tracking.
Thomas & Sons HVAC
2026A modern service website for Thomas & Sons HVAC, connecting homeowners in Orangevale, California with reliable heating, cooling, and air quality solutions.
Endorsements & Peer Reviews
Unfiltered feedback from team leaders and product operators regarding code quality, visual accuracy, and full-stack execution.
“Ernest is one of the most talented frontend developers I have worked with. His ability to translate complex requirements into clean, responsive interfaces is outstanding. He brings both technical precision and creative vision to every project.”
Developer // Healthbuk
“Ernest has been instrumental in delivering high-quality frontend solutions for our clients at Atmostech. His deep understanding of modern web technologies and commitment to pixel-perfect execution consistently exceeds expectations.”
CEO // Atmostech Solution
“Working with Ernest on React Native development has been a great experience. He grasps mobile UI/UX nuances quickly and delivers polished, performant applications. A reliable and skilled developer I would readily recommend.”
Founder // Engine 8 Studios
Get In Touch
Whether you're hiring, have a project, or just want to say hi — I'll get back to you.