John Tasie
Front-End Developer
Overview
4
4
years of professional experience
5
5
Certificates
Work History
Senior Front-End Developer
UPWORK
02.2023 - Current
- Deliver scalable web applications for international clients with Figma, React, Next.js, and REST APIs, while working independently with CMS platforms (Strapi, Payload with MongoDB) to manage content and data, or with UI/UX designers and backend engineers to accelerate delivery and improve user experience.
- Collaborated with engineers from Turing to build an AI-powered chart generation system using React, TypeScript, Recharts, and Chart.js, enabling dynamic visualizations such as scatter plots, bump charts, and choropleth maps.
- Integrated Supabase authentication and APIs into React/Next.js applications, streamlining user login and data handling while improving delivery speed for clients.
- Virtual/Remote.
Front-End Developer (AI Enhanced)
ROCKET Z1
01.2024 - 02.2025
- Contributed to the development of a complex Data Studio for analyzing 400+ trading pairs, enabling users to monitor forex pairs and cryptocurrency trends, which boosted customer retention by 10%.
- Leveraged prompt engineering with ChatGPT and Claude to generate test data and streamline documentation, while strengthening code quality through testing and cross-team collaboration across 13 countries.
- Collaborated closely with designers to achieve pixel-perfect interfaces, enhancing user satisfaction by 15%.
- Seattle, USA (Remote).
React Developer
SPLITCASH
11.2023 - 05.2024
- Built and maintained scalable SPAs in React with Redux, improving performance and reliability for end-users.
- Refactored legacy React class components into modern ES6 functional components for improved performance, readability, and maintainability, while utilizing Git for version control and Docker for consistent development environments.
- Integrated third-party APIs to expand web app functionality and enhance customer experience.
- Virtual/Remote.
Mid-level Front-End Developer
TRADING VIEW
10.2022 - 09.2023
- Built scalable real-time trading UIs with React, TypeScript, and Redux, leveraging custom hooks to streamline logic and reduce latency.
- Enhanced code quality through refactoring and code reviews, enforcing consistent frontend standards.
- Partnered with quant analysts and backend engineers to integrate RESTful APIs, enhancing UX and data accuracy.
- Tbilisi, Georgia (Remote).
Junior Developer (Intern)
MAK ARTISTRY
01.2022 - 07.2022
- Assisted senior developers in building and testing React components.
- Built reusable UI components, improving consistency and reducing development time for future features.
- Integrated RESTful APIs with React interfaces, strengthening frontend–backend communication.
- Lagos, Nigeria.
Education
B.Sc. - Geology
University of Lagos
01.2021
Skills
Programming Language: JavaScript (ES6), Typescript
Front-End: React, Nextjs, Redux, Tailwind CSS, Material UI, GraphQL
Back-End: Supabase, CMS Platforms (Payload with MongoDB, Strapi), REST APIs
Architecture & Patterns: MVC, SPA, SSR
AI Tools: OpenAI (GPT), Claude
Dev tools: Git, Docker, Postman, Figma, Netlify/Vercel, Jest
Certification
Meta Front-End Developer Professional Certificate
Work Availability
monday
tuesday
wednesday
thursday
friday
saturday
sunday
morning
afternoon
evening
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Quote
Fortune favors the brave
Tasie
Timeline
Front-End Developer (AI Enhanced)
ROCKET Z1
01.2024 - 02.2025
React Developer
SPLITCASH
11.2023 - 05.2024
Senior Front-End Developer
UPWORK
02.2023 - Current
Mid-level Front-End Developer
TRADING VIEW
10.2022 - 09.2023
Junior Developer (Intern)
MAK ARTISTRY
01.2022 - 07.2022
B.Sc. - Geology
University of Lagos