Kelvin Moses

Results-driven Frontend Lead with 5+ years of experience architecting scalable, accessible, and high-performance web and mobile applications. Proven track record of leading cross-functional engineering teams, establishing coding standards, and delivering exceptional user experiences. Deep expertise in React, Next.js, TypeScript, and modern frontend tooling — combined with a passion for developer mentorship, design systems, and open-source contribution.

Lead Frontend Engineer (Web & Mobile) - Rahapay - Nigeria

(2024-01)

• Lead a high-performing frontend team across web and mobile products using Agile practices, reducing feature delivery time by 25%.
• Architect scalable frontend solutions with React, Redux Toolkit, and TypeScript, setting direction on framework selection and application structure.
• Built and maintain a reusable component library and design token system using Tailwind CSS and Storybook, improving development speed and UI consistency.
• Optimised application performance through code-splitting, lazy loading, and memoisation, cutting page load times by over 35%.
• Integrate with backend systems via GraphQL and RESTful APIs, including real-time features using WebSockets.
• Conduct rigorous code reviews, enforce engineering best practices with ESLint and Prettier, and establish comprehensive documentation.
• Mentor junior developers, improving code quality, onboarding efficiency, and overall team velocity.

Frontend Engineer - NotJustEvent Inc. - New Castle, Delaware, USA

(2022-01 - 2024-12)

• Developed and maintained reusable React components, improving UI consistency and reducing page load times by 30%, cutting bounce rates by 20%.
• Integrated Redux Toolkit for state management, reducing unnecessary re-renders by 25% and enhancing app responsiveness.
• Leveraged TypeScript to reduce runtime errors by 40% and improve maintainability and developer productivity.
• Implemented advanced performance optimisations (virtualisation, code-splitting, memoisation), achieving a 50% drop in rendering time for large datasets.
• Built and maintained integrations with third-party APIs (payments, analytics, social platforms) using REST, GraphQL, and WebSockets.
• Consistently shipped features with Lighthouse performance scores of 95+ and established test coverage above 85% with Jest and Cypress.

Frontend Engineer - PixelCraft Digital - Halifax, Canada (Remote)

(2020-04 - 2022-03)

• Developed and deployed SEO-optimised web apps using Next.js, React, and Tailwind CSS, boosting client site traffic by up to 45% within 3 months.
• Led the creation of a modular component system documented in Storybook, reducing frontend development time by 30% across projects.
• Introduced CI/CD pipelines using GitHub Actions, enabling automated deployment and reducing production downtime.
• Ran accessibility audits and implemented WCAG 2.1 best practices, achieving 100% accessibility scores on key deliverables.
• Mentored two junior developers and enforced team coding standards using ESLint and Prettier.

Frontend Engineer - NativeBrand Agency - Nigeria

(2019-03 - 2020-12)

• Collaborated with designers to translate Figma designs into responsive, accessible, pixel-perfect UIs across devices.
• Boosted user engagement by 40% through the development of an e-commerce platform using Next.js and TypeScript.
• Integrated backend and third-party APIs including payment gateways, social platforms, and analytics tools.
• Conducted comprehensive code reviews enforcing accessibility, security, and performance best practices.

B.Sc/Ed. - Computer Science & Education - Taraba State University, Jalingo (2022)