I'm a full stack developer with over 4 years of experience building scalable, user-focused web applications. I'm proficient in the MERN stack (MongoDB, Express.js, React, Node.js) and modern development workflows, with a track record of delivering e-commerce platforms, real estate listings, and responsive websites. I enjoy solving complex problems, writing clean, efficient code, and taking projects from concept to deployment. I excel at collaborating with cross-functional teams, migrating legacy code to modern architectures, and prioritizing performance, accessibility, and mobile-first design.

Olisah C. Kelvin

I'm a full stack developer with over 4 years of experience building scalable, user-focused web applications. I'm proficient in the MERN stack (MongoDB, Express.js, React, Node.js) and modern development workflows, with a track record of delivering e-commerce platforms, real estate listings, and responsive websites. I enjoy solving complex problems, writing clean, efficient code, and taking projects from concept to deployment. I excel at collaborating with cross-functional teams, migrating legacy code to modern architectures, and prioritizing performance, accessibility, and mobile-first design.

Available to hire

I’m a full stack developer with over 4 years of experience building scalable, user-focused web applications. I’m proficient in the MERN stack (MongoDB, Express.js, React, Node.js) and modern development workflows, with a track record of delivering e-commerce platforms, real estate listings, and responsive websites.

I enjoy solving complex problems, writing clean, efficient code, and taking projects from concept to deployment. I excel at collaborating with cross-functional teams, migrating legacy code to modern architectures, and prioritizing performance, accessibility, and mobile-first design.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
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Work Experience

Freelance Full Stack Developer at Self-Employed / Freelance
September 1, 2019 - Present
Developed full-stack e-commerce solutions using React, Node.js, and MongoDB, integrating secure payment gateways like Paystack and reducing transaction setbacks by 20%. Engineered a responsive real estate platform with advanced search, filtering, and location-based queries, showcasing over 100+ properties. Built and deployed dynamic websites for clients in various sectors, including NGOs, record labels, and creative professionals, ensuring mobile-first design and brand cohesion. Migrated legacy codebases from Vanilla JavaScript to React, improving code maintainability, readability, and performance by up to 50% through micro-service architecture.
Frontend Developer (Bootcamp) at HNG Foundation
June 1, 2024 - August 1, 2024
Wrote efficient, reusable, and testable code in React.js for various projects. Integrated third-party APIs and libraries following industry best practices and coding standards. Collaborated with UI/UX designers to translate design mockups into fully functional, responsive web applications

Education

B.Eng in Mechanical Engineering at Nnamdi Azikiwe University, Awka Nigeria
November 1, 2018 - April 1, 2023

Qualifications

Responsive Web Design Certification (FreeCodeCamp)
May 13, 2022 - March 20, 2026
Front End Development Libraries Certification (FreeCodeCamp)
January 11, 2030 - March 20, 2026
Diploma in Web Development (Digital Dreams ICT Academy)
September 12, 2020 - March 20, 2026
Certified Web Developer (Udacity)
January 11, 2030 - March 20, 2026
NYSC Certification (Batch 24A)
January 31, 2025 - March 20, 2026

Industry Experience

Software & Internet, Media & Entertainment, Real Estate & Construction, Non-Profit Organization, Retail