John M
@johnm2
Full-stack engineer building scalable web apps with measurable performance improvements.
KenyaWhat I'm looking for
I’m a Full-Stack Engineer with 4+ years of experience building high-performance, scalable web applications using React, Angular, .NET Core, Node.js, and TypeScript. I design and deliver production-grade systems that improve performance, reliability, and user experience.
I’ve architected RESTful APIs and data-driven platforms with PostgreSQL and MSSQL, optimizing query handling and caching to improve API response times by 30–40%. I also strengthen frontend performance through lazy loading, code splitting, and efficient state management (reducing initial load time by 45%), while using Docker, Azure DevOps, and CI/CD to cut deployment time by 50% and eliminate environment inconsistencies.
Experience
Work history, roles, and key accomplishments
Full-Stack Engineer
Griffin Global Technologies
Oct 2023 - Present (2 years 8 months)
Led the design and delivery of scalable web applications, improving API response times by 30–40% and reducing initial load time by 45%. Architected RESTful services and database solutions, cut deployment time by 50% with Docker and Azure DevOps CI/CD, and reduced production bugs by 20% through testing and code reviews.
Full-Stack Engineer
Thejitu
Apr 2023 - Sep 2023 (5 months)
Developed and deployed enterprise-grade customer-facing and internal applications using React, Angular, Node.js, and .NET Core, improving uptime to 99.9%. Built scalable APIs and optimized frontend architecture and data fetching to reduce development time by 30% and unnecessary API calls by 35%.
Full-Stack Engineer
Freelance
Apr 2022 - Mar 2023 (11 months)
Delivered 10+ full-stack applications for startups and small businesses using React, Angular, Node.js, and .NET Core, improving clients’ operational efficiency and digital presence. Designed scalable APIs and responsive, SEO-optimized UIs, increasing traffic and engagement by 20–35% while reducing future maintenance effort by 30% through modular architectures.
Education
Degrees, certifications, and relevant coursework
Karatina University
Bachelor of Science, Computer Science
2018 - 2022
Earned a Bachelor of Science in Computer Science at Karatina University from 2018 to 2022.
Tech stack
Software and tools used professionally
Availability
Location
KenyaAuthorized to work in
Social media
Job categories
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