Emmanuel Okon
Emmanuel Okon

Senior Frontend Engineer

Actively looking · Member since 27 Oct 2026
Location
Uyo, Nigeria
Desired salary
Confidential
Work preference
Remote Only / Full Time, Part Time, Contract, Freelance
Experience level
Senior

About

Professional summary

I am a Senior Frontend Engineer with over five years of experience building high-performance, secure, accessible web applications for B2B enterprises and high-traffic consumer platforms.

I specialize in React, Next.js, and TypeScript, with strong experience designing scalable multi-tenant dashboards, e-commerce platforms, checkout flows, role-based applications, and data-heavy user interfaces.

I build security-first frontend systems using RBAC, Content Security Policy, Next.js Middleware, JWT-based authentication, and secure session management. I also focus on type-safe validation and resilient API integration.

My expertise includes server-state and client-state architecture with TanStack Query, Redux Toolkit, and RTK Query. I use performance optimization techniques such as code splitting, memoization, caching, and Core Web Vitals improvements to deliver responsive user experiences.

I have worked remotely with distributed teams across the UK, Nigeria, and Rwanda. I enjoy creating accessible design systems, improving engineering quality through testing and code reviews, and delivering measurable improvements in conversion, reliability, and delivery velocity.

I am comfortable collaborating across time zones and working in Agile/Scrum environments. My experience spans frontend architecture, API integration, payments, authentication, testing, observability, deployment automation, and UI/UX implementation.

Notice period: Immediately

Skills

30 capabilities

Tech stack & tools

Working toolkit

Analytics

Application Hosting

Collaboration

Data Stores

Design

Languages & Frameworks

Libraries

Experience

Career history

Frontend Engineer Enbros Technologies

Architected a multi-tenant B2B security-awareness platform with admin, client, and end-user dashboards using the Next.js App Router. Improved initial page-load times by 35% across portals.

Implemented security measures including Next.js Middleware, strict Content Security Policy headers, and isomorphic DOMPurify sanitization. Built a type-safe form validation layer with React Hook Form and Zod, centralized Axios interceptors, TanStack Query server-state management, and secure cookie-based sessions.

Established an accessible modular design system using Tailwind CSS, Radix UI, and Framer Motion, increasing feature delivery velocity by 40% across the engineering team.

Frontend Engineer PredictBeta

Led architectural design for a high-traffic sports prediction platform built with Next.js, supporting thousands of concurrent users during peak match windows.

Reduced redundant API overhead by 40% by decoupling server state with React Query and custom data-fetching hooks. Optimized data-heavy dashboards with useMemo, useCallback, and dynamic code splitting to maintain smooth 60 FPS interactions.

Implemented token-based authentication, Next.js Middleware route protection, and foundations for RBAC. Improved maintainability by separating business logic from presentation components and expanding reusable, testable component architecture.

Frontend Engineer Ginger

Led end-to-end frontend architecture for a B2B beauty e-commerce platform, unifying the buyer marketplace, invoice-financing workflows, and internal administration dashboard under one design system.

Engineered global state and asynchronous data-fetching architecture with Redux Toolkit and RTK Query, reducing redundant network requests across product catalog and transactional workflows.

Built secure document-upload interfaces for supplier invoice financing, supporting 24-hour credit approvals and automated 30/60/90-day repayment tracking. Standardized role-based admin panels for catalog management, merchant onboarding, order fulfillment, and credit-scoring workflows.

Frontend Engineer Afri Foods

Rebuilt the core e-commerce platform using Next.js, TypeScript, and Shadcn UI, improving Core Web Vitals and increasing mobile conversion rates by 25%.

Designed secure checkout flows, product catalogs, and real-time order tracking while collaborating with backend teams on Two-Factor Authentication. Enforced WCAG accessibility and semantic HTML practices, contributing to an 18% increase in organic SEO traffic through optimized Open Graph metadata.

Created unit and integration test suites with Jest and React Testing Library, reducing production regression bugs by 30%. Coordinated payment gateway integrations with international partners and implemented reliable transaction-state and error-handling boundaries.

Frontend Developer Nervelabs Innovative Africa

Developed an end-to-end event-management and ticketing platform, integrating Clerk authentication and Stripe for secure multi-currency payment processing.

Architected application state with Redux Toolkit for shopping carts, wishlists, and user profiles, enabling predictable and race-condition-free data flows.

Reduced production error rates by 22% through Sentry monitoring and automated deployment pipelines on Vercel. Established ESLint and Prettier standards and led peer code reviews to improve codebase maintainability.

Education

Learning history

University of Uyo

Bachelor of Engineering (B.Eng), Second Class Upper Division (2:1), Computer Engineering

Bachelor of Engineering in Computer Engineering.

This professional hasn’t added portfolio projects yet.

This professional hasn’t listed any services yet.

Jobs Talent AI Tools Salaries
Menu