EMMANUEL WALUJO

Frontend React Developer

About

I’m a Front-End Developer with 7+ years of experience building scalable, production-grade web applications across SaaS platforms, enterprise systems, and real-time environments.I specialize in building high-performance frontend applications while also designing and integrating backend systems to deliver complete end-to-end solutions.Core strengths:• Frontend: React.js, Next.js, TypeScript, performance optimization• Backend: Node.js, GraphQL, REST APIs, microservices architecture• Databases: PostgreSQL, MongoDB• Systems: Real-time applications (WebSockets & GQL Subscriptions), API design, scalable architectureI’ve worked on complex systems including real-time platforms, e-commerce applications, and enterprise software, focusing on performance, scalability, and clean architecture.Beyond development, I’ve mentored junior engineers, contributed to architecture decisions, and improved engineering workflows.Currently focused on:• Data Structures & Algorithms• System Design & scalability• Writing clean, maintainable, production-level codeI’m open to opportunities where I can contribute to impactful products and continue growing into a senior engineering role.Let’s connect or collaborate.

Country

Canada

City

Toronto

Industry

Computer Software

Skill

API Integration (REST/GraphQL), Agile & Scrum, CI/CD (GitHub Actions, Docker, Kubernetes), Web Accessibility (AODA/WCAG), API Integration, Agile, Full-Stack Development, Software Design, Redux, Block Element Modifier (BEM), User Experience (UX), Jest, Cypress, SASS, Gitlab, Front-End Development, Redux Thunk, HTML5, CSS3, Go (Programming Language)

Experience

Frontend React Developer

Help Us Defend

2023-12 - Present · 2 yrs 10 mos

Toronto, ON

- Led development of scalable React/Next.js applications for e-commerce and internal systems - Built reusable component libraries improving development speed and consistency - Integrated frontend applications with backend APIs, improving data flow and performance - Implemented accessibility standards (AODA/WCAG) to enhance usability - Optimized performance using SSR, lazy loading, and code splitting, reducing load times - Established testing pipelines using Jest and Cypress

Senior Software Engineer

Techno Brain Group

2021-1 - 2023-11 · 2 yrs 11 mos

Kampala

- Built large-scale React + TypeScript dashboards with real-time data visualization - Designed and integrated REST, SOAP, and GraphQL APIs for secure data exchange - Improved system performance by 40% through caching and optimization strategies - Contributed to microservices architecture using Node.js and Golang - Implemented CI/CD pipelines using Docker and Kubernetes - Mentored junior developers and supported architecture decisions

Software Developer

xaecia

2017-6 - 2020-12 · 3 yrs 7 mos

Kampala

- Built SaaS platforms using Node.js and PHP (CodeIgniter, Laravel) - Developed secure applications including biometric-enabled systems - Maintained and modernized applications using Django and Flask - Integrated APIs and improved backend performance - Applied TDD practices for maintainable codebases