CO

Chike Okenyi Kosisochukwu

Available to hire

I’m Chike Okenyi Kosi, a front-end developer with 3+ years of experience building responsive, accessible, and user-friendly web applications.

About

I’m Chike Okenyi Kosi, a front-end developer with 3+ years of experience building responsive, accessible, and user-friendly web applications. I work mainly with React and modern JavaScript (ES6+), turning Figma designs into clean interfaces using SCSS, Flexbox, and CSS Grid—while paying close attention to performance and accessibility (Lighthouse scores above 90). I also enjoy investigating and fixing front-end issues by reproducing bugs and using browser developer tools to get to root cause quickly.

  • 1 year's experience
  • Joined September 2026

Languages

  • EnglishAdvanced

Industry experience

  • Software & Internet
  • Computers & Electronics
  • Professional Services
  • Education

Work experience

Frontend Developer (Remote) · FreelanceNov 2024 – May 2025 · 7 mos

Developed and maintained responsive web applications using React.js and Tailwind CSS. Diagnosed and resolved client-reported website issues, integrating REST APIs and debugging front-end integration problems. Customized and maintained CMS-based solutions based on client requirements. Worked directly with clients to gather needs, explain technical solutions, and provide post-deployment support. Iteratively improved usability, responsiveness, and overall user experience through troubleshooting and optimization.

Frontend Developer (Freelance) · FreelanceNov 2024 – May 2025 · 7 mos

Developed and maintained responsive web applications using React.js and Tailwind CSS. Diagnosed and resolved client-reported website issues and integrated REST APIs, debugging and testing to fix front-end integration problems. Customized and maintained CMS-based solutions based on client needs. Worked closely with clients to gather requirements, explain technical solutions, and provide post-deployment support, improving usability, responsiveness, and overall user experience through iterative troubleshooting.

Frontend Intern · Genesys Tech HubAug 2023 – Apr 2024 · 9 mos

Collaborated with developers to build, test, and debug React-based web applications. Investigated UI bugs, reproduced customer-reported issues, and implemented fixes to improve stability and usability. Translated Figma designs into responsive interfaces using React, SCSS, Flexbox, and CSS Grid, while working in Git/GitHub Projects and Agile workflows with remote team coordination via Slack. Optimized for performance, responsiveness, and accessibility, consistently targeting Lighthouse scores above 90. Supported cross-browser testing and communicated technical findings during standups and code reviews.

Education

B.Eng. in Mechatronics Engineering (Final Year Project) · University of Nigeria, Nsukka2030 – 2026
B.Eng. in Mechatronics Engineering · University of Nigeria, Nsukka2030 – 2026

Certifications and awards· 6

Responsive Web Design (freeCodeCamp)2023 – 2026
JavaScript Algorithms & Data Structures (freeCodeCamp)2023 – 2026
Frontend Developer Track (Learnable Africa)2024 – 2026
Responsive Web Design2023 – 2026

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