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John W. — Senior Full Stack Developer from Kenya

John W.

Senior Full Stack Developer

Kenya 6+ years
Open to offersNew to Platform
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About

John W. is a Senior Full Stack Developer with over 14 years of experience delivering enterprise and SaaS solutions across the healthcare, logistics, eCommerce, and education sectors. His expertise includes Angular, Node.js, Python/Django, and cloud deployment, reinforced by projects modernizing ERP modules and architecting real-time proof-of-delivery systems in medical supply chain domains. At Medical Supplies Systems, John W. transformed legacy platforms using microservices and API-first design, resulting in a 70% surge in operational efficiency. Through his freelance work on Upwork, he created secure, scalable web and mobile applications for global clients, consistently achieving top client ratings. Additional experience at Dillieduck Technologies and Unighir Ltd saw him optimizing release cycles and IT infrastructures. He holds a Diploma in Computer Science and certifications in advanced Angular, microservices architecture, and AWS Cloud.

Experience

  • Systems Developer (Contract)

    Dillieduck Technologies · 2023 — 2023
    Developed and maintained internal automation systems aimed at enhancing operational efficiency and client service delivery. Optimized deployment workflows and codebase, resulting in reduced release cycles.

  • Senior Full Stack Developer

    Medical Supplies Systems · 2011 — Present
    Engineered modular ERP modules for HR, Finance, and Procurement utilizing Angular and Node.js. Deployed the E-POD (Proof-of-Delivery) system with NativeScript and PostgreSQL to enable real-time order tracking. Modernized legacy systems via API-first architecture and deployed microservices through Nginx and Docker.

  • Systems Administrator

    Unighir Ltd · 2010 — 2011
    Managed IT infrastructure, implemented internal automation solutions, and improved network performance. Enhanced reporting systems leading to improved uptime.

  • Full Stack Developer (Freelance)

    Upwork · 2010 — Present
    Delivered full-stack web and mobile solutions for diverse global clients in the healthcare, logistics, and education sectors employing Angular, React, Node.js, and Django. Architected reusable codebases, CI/CD pipelines, and executed cloud deployments on AWS and GCP.

  • Full Stack Developer

    Owentech Kenya · 2006 — 2009
    Created applications for procurement and customer management to optimize business operations. Improved system usability, significantly decreasing manual reporting time.

Skills & Expertise

ERP / Enterprise SystemsERP ConsultantFull Stack DeveloperMotion Graphics Designer

Education

  • Diploma in Computer Science
    Technical University of Kenya · 2004 — 2006