Frontend Developer Senior

DANIEL ADESANYA

Senior Frontend Developer

Lagos, Nigeria +234********** ****************@*****.***

https://linktr.ee/danny_el

CORE SKILLS

Frontend: ReactJS, Next.js, TypeScript, TailwindCSS, Chakra UI, Material UI

Mobile & UI: React Native, Responsive Design, Mobile-First Development, Accessible Interfaces

Backend & APIs: Node.js, C#, RESTful API Integration, Real-Time Communication (WebSockets)

Databases: MongoDB, PostgreSQL, MySQL, MSSQL Tooling: Figma, Git, Agile/Scrum, Unit Testing, Code Reviews, SOLID Principles

Data Visualization: D3.js, HTML Canvas API (familiarity) WORK EXPERIENCE & IMPACT

SIDMACH Technologies, Lagos

Senior Frontend Engineer — May 2021 – Present Spearheaded frontend redevelopment of LUMINATE, a large-scale learning management system, with React, TypeScript, and Chakra UI, improving performance and enhancing user experience. Collaborated with cross-functional teams to design accessible and responsive interfaces aligned with Figma mockups and UX best practices.

Integrated real-time features and dynamic content by consuming and optimizing RESTful APIs.

Led code reviews and enforced SOLID principles, DRY and modular code practices to ensure maintainability and high performance. Mentored junior developers and conducted peer-programming and knowledge-sharing sessions, increasing team output by 50%. Implemented improvements in legacy systems with API integration, UI refactoring, and performance tuning.

Harde Business School, Lagos

Frontend Developer — Oct 2022 – Jan 2024

Developed UI for HARDEVERSE Student Portal and LMS using React

(Next.js) and TypeScript, scaling to 10,000+ users. Applied mobile-first and accessible design principles to improve user retention (>7000 returning users). Translated Figma wireframes into reusable components using TailwindCSS and component libraries.

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Integrated RESTful APIs and handled edge cases for smooth user experience during failures.

Achieved >80% unit test coverage through functional and unit testing.

SIDMACH Technologies, Lagos

Frontend Developer Associate — Feb 2021 – May 2021 Built interactive frontend pages for the ODFEL platform using React, enabling dynamic features like timetable setup, document handling, and secure login.

Collaborated with backend APIs (built in C#) to push and retrieve data from MSSQL databases.

Ensured cross-browser compatibility and responsiveness while debugging and refactoring legacy pages. CHAMACCESS Ltd, Nigeria

Student Software Developer — May 2019 – Aug 2019 Developed C#-based modules for biometric devices (LF10 scanners) and ID card printers.

Contributed to the creation of a Windows application for secure, custom card printing.

Gained hands-on experience with device SDKs and real-time data interactions.

EDUCATION

BSc, Computer Science — ISCOM University, Cotonou October 2017 – July 2020

PROJECTS

Sport Turf Booking App – Developed frontend architecture and booking workflow with React + Firebase Group Forum Application – Built role-based forum with real-time discussion features using WebSockets

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