Mwenja Robert Rwara

Results-driven Full-Stack Software Developer with 4+ years of experience designing, building, and maintaining ERP systems, business applications, and REST APIs using Laravel, PHP, MySQL, and JavaScript. Proven track record delivering end-to-end solutions across sales, inventory, HRM, payroll, procurement, and finance modules, with hands-on expertise in M-Pesa payment integration, biometric integrations, third-party API integration, and database design. Skilled in debugging, problem solving, and Agile development, with strong experience in Git version control, cloud and shared hosting deployment, and client training and support.

1. Full-Stack Developer / ERP Systems Lead

   May 2024 – Present

   Powel Jea Enterprise Limited (incl. Project Management ERP consultancy)

   • Design, develop, and maintain ERP modules — CRM, Sales, Inventory, Procurement, Banking, HRM, and Payroll — using Laravel, PHP, MySQL, JavaScript, jQuery, and Bootstrap.
   • Build and consume REST APIs for module-to-module and third-party integrations, including M-Pesa payments and SMS/email notifications.
   • Manage the codebase with Git/GitHub, including branching, code reviews, and release management within an Agile workflow.
   • Deploy and administer systems on shared and cloud hosting; handle system maintenance, debugging, bug fixing, and client support.
   • Developed new products end-to-end, including a Water Delivery System and a Biohazard Collection System, from database design to deployment.
   • Train sales and client teams on system usage, improving adoption and reducing support tickets.

2. Full-Stack Developer

   Apr 2024 – May 2024

   PJEA Stock & Sales System (Version 2)

   • Designed and implemented stock, sales, CRM, and reporting modules with role-based access control (roles, permissions, user management).
   • Handled hosting, system administration, and post-launch support and debugging.

3. Full-Stack Developer

   Oct 2023 – Dec 2023

   Petrol Station Stock Management System (Project)

   • Designed sales and admin portals; implemented stock adjustment, product management, and shift management modules.
   • Built sales and reporting modules with MySQL-backed database design for accurate reconciliation.

4. Backend & ERP Developer

   Oct 2023 – Dec 2023

   Hanspaul Company (Project)

   • Developed the ERP backend and company website covering Production, Procurement, HRM, Sales, Finance, Inventory, and CRM modules.
   • Developed REST APIs and handled third-party API integrations.

5. Full-Stack Developer

   Dec 2022 – Oct 2023

   Spine Business Systems

   • Developed and customized ERP SPINE modules to client requirements as a full-stack developer (PHP, MySQL, JavaScript, jQuery, HTML/CSS).
   • Diagnosed and resolved production issues through systematic debugging; delivered customer training and technical support.

6. Technical Support & Hosting Manager

   Oct 2022 – Dec 2022

   Web Hosting Services

   • Managed shared hosting servers and cPanel module creation and allocation; supported hosting customers.
   • Implemented WHMCS payment integrations and delivered website development and modifications.

7. Full-Stack Developer

   Aug 2022 – Oct 2022

   Stock Management System (Laravel)

   • Designed and developed a multi-shop stock management system in Laravel with stock transfer modules.
   • Implemented M-Pesa payment integration and multi-user authentication and authorization.

8. ICT Officer (ICT Support)

   Feb 2022 – May 2022

   Ministry of Water, Irrigation and Sanitation

   • Installed and configured software, hardware, VPNs, and financial systems; maintained and troubleshot networks.
   • Supported web design, updates, and internal system development.

9. Backend / API Developer

   Sep 2021 – Nov 2021

   SCIT Management System (Timetabling Module), Technical University of Kenya

   • Designed and developed backend REST APIs and endpoints; integrated a Neo4j graph database.
   • Created Docker files for containerization; mentored junior backend developers on API design and collaborated with frontend teams in an Agile setup.

10. IoT Associate Course Facilitator

    Apr 2021 – May 2021

    Technical University of Kenya

    • Delivered practical IoT training (microcontrollers, sensors) covering Arduino C and Python for Raspberry Pi.

Open to full-stack, backend, and ERP engineering opportunities. Reach out by email or phone, or connect on LinkedIn / GitHub.