JTJohn Tasie
@johntasie
Front-End Developer focused on scalable React and Next.js apps.
NigeriaWhat I'm looking for
I am a Senior Front-End Developer with extensive experience building scalable, high-performance React and Next.js applications for international clients. I have delivered production-grade SPAs and real-time trading UIs, integrated authentication and CMS solutions, and collaborated across distributed teams to improve UX and retention.
I specialize in modern JavaScript/TypeScript stacks, refactoring legacy code, and applying AI tools to streamline testing and documentation. I consistently drive measurable improvements—such as increased customer retention and enhanced user satisfaction—while ensuring pixel-perfect interfaces and maintainable code.
Experience
Work history, roles, and key accomplishments
UPDeliver scalable web applications for international clients using React, Next.js, Figma, and CMS platforms, integrating Supabase authentication and REST APIs to accelerate delivery and improve UX.
Front-End Developer
Rocket 21
Jan 2024 - Feb 2025 (1 year 1 month)
Contributed to a Data Studio analyzing 400+ trading pairs, improving customer retention by 10% through data-driven interfaces and pixel-perfect UI collaboration with designers.
React Developer
Splitcash
Nov 2023 - May 2024 (6 months)
Built and maintained scalable single-page React applications, refactoring class components to modern functional components and integrating third-party APIs to enhance functionality.
TRBuilt real-time trading UIs with React, TypeScript, and Redux, reducing latency with custom hooks and improving data accuracy by integrating RESTful APIs with quant teams.
Junior Developer
Mak Artistry
Jan 2022 - Jul 2022 (6 months)
Assisted in building and testing React components and reusable UI elements, and integrated RESTful APIs to strengthen frontend–backend communication.
Education
Degrees, certifications, and relevant coursework
ULUniversity of Lagos
Bachelor of Science, Geology
2015 - 2021
Completed a Bachelor of Science in Geology at the University of Lagos from 2015 to 2021.
Tech stack
Software and tools used professionally
Availability
Location
NigeriaAuthorized to work in
Website
tasie.devPortfolio
tasie.devSalary expectations
Job categories
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