(Full-Stack Developer)
Production Systems · SaaS · APIs · Payments · Automation
I design, build, integrate, and deploy production software for businesses, institutions, and real-world operations. My work spans backend engineering, SaaS architecture, databases, payment systems, automation, APIs, infrastructure, and connected systems.
Engineering production systems across software, data, payments, automation, and connected operations
Python, Django, Flask, REST APIs, JWT authentication, RBAC, business logic, secure integrations.
Multi-tenant applications, dashboards, role-based portals, workflow systems, reporting platforms, institutional software.
M-Pesa Daraja, STK Push, webhook processing, transaction reconciliation, idempotency, payment workflows.
SMS automation, API integrations, background processing, webhooks, notifications, operational workflows.
Docker, Docker Compose, Nginx, Gunicorn, Git, CI/CD, cloud deployment, production configuration.
RFID, GPS, sensors, microcontrollers, and software systems that connect physical operations to digital platforms.
I'm a Software Engineer and Technical Founder building production systems end to end - from architecture and backend development through database design, API development, authentication and authorization, payment integration, webhook processing, automation, and deployment. My focus is on shipping systems that hold up in production, not just in a demo.
My flagship project is the School Management SaaS System - a live production platform on Render serving 1,000+ student records across 4 role-based portals (Admin, Staff, Student, Parent).
In plain terms: it replaces a school's entire paper-based back office - fee receipts, report cards, attendance registers, library records, and SMS reminders to parents - with one secure online system. A parent gets an M-Pesa payment prompt on their phone and pays a school fee in seconds; a teacher generates a full term's report cards in one click instead of days of manual grading.
Under the hood, it's built as a multi-tenant Django and PostgreSQL platform - one codebase, many schools, each one's data fully isolated. Every login runs through JWT-based authentication with role-based access control, so a parent only ever sees their own child's records and a teacher never touches admin-only financial data. Payments go through the M-Pesa Daraja API with webhook-driven reconciliation engineered to cut payment disputes - which it did, by 70% in production. Report cards generate as server-rendered PDFs (500+ a term), and Africa's Talking handles bulk SMS to parents. The whole platform is containerized with Docker and deployed on production infrastructure (Gunicorn, Nginx, Render) - the same class of setup larger engineering teams run, not a tutorial project.
Full architecture and implementation details are available on request during interviews.
Supported digital workflow implementation and ICT system monitoring during attachment at Survey of Kenya, Ministry of Lands, with exposure to:
Production systems and technical implementations.
Multi-tenant Django/PostgreSQL SaaS platform integrating school administration, academic workflows, payments, communication, and automated reporting.
Technology
Mobile-first poultry commerce platform with product catalogue, quantity-based cart, M-Pesa ordering, and WhatsApp order handoff.
Technology
Company website for Adalyn Technologies, the software engineering company founded by Mercy Mbaka, presenting its software platforms, automation systems, and payment integrations.
Technology
Business website for a KPSRA-licensed security firm covering CCTV, access control, electric fencing, alarms, biometrics, and networking services.
E-commerce storefront for a luxury human-hair wig boutique with product browsing, WhatsApp ordering, and M-Pesa payment integration.
Tailored deployment of the School Management SaaS platform for student records, fees, administration, and operational workflows.
Screenshots - scroll to see more
Visual designs and creative content crafted with Canva
Eye-catching flyers, posters, and promotional graphics for events and product launches. Designed for both digital and print distribution.
Made with Canva
Bold promotional posters for product launches, sales events, and brand campaigns - built for both print and digital use.
Made with Canva
Vibrant travel and tour package graphics - itineraries, destination highlights, and booking promotions.
Made with Canva
Branding and promotional materials for photography businesses - price lists, portfolio showcases, and social templates.
Made with CanvaTransparent pricing across web, business systems, and hardware-integrated solutions. All figures are estimates - final quotes depend on project scope.
A clean, mobile-responsive site to establish an online presence quickly.
Multi-page business site with branding, content management, and contact tools.
Full online store with product catalog, cart, checkout, and payment integration.
Captive portal billing system for WiFi hotspots with voucher and M-Pesa payment support.
Point-of-sale system for retail or hospitality with sales, stock, and receipt management.
Full school management: fees, exams, attendance, timetabling, and reporting.
Centralized system for operations, inventory, and staff management.
Employee records, payroll processing, leave tracking, and statutory deductions.
Accounting, budgeting, and financial reporting tailored to your business.
Track company assets, locations, assignments, and maintenance history.
Includes
Combining software, hardware, payments, and automation - solutions most developers can't deliver end-to-end.
School ERP combined with RFID card-based attendance tracking.
Asset system paired with RFID tags for real-time location and status tracking.
Fleet management system integrated with GPS tracking devices.
Real-time dashboard powered by water-flow and quality sensors.
Farm dashboard integrated with soil, moisture, and climate sensors.
Ongoing services for predictable, recurring income beyond one-off project builds.
Reliable hosting, uptime monitoring, and SSL for your website.
Managed hosting for business systems and SaaS deployments.
Ongoing troubleshooting, updates, and support for your system.
Scheduled maintenance, bug fixes, and feature improvements.
Bulk SMS notifications billed per message sent via Africa's Talking.
Domain registration, renewal, and DNS management.
All prices are estimates based on typical project scope and may vary depending on specific requirements, integrations, and timelines. Get in touch for a tailored quote.
What drives me outside of software development
Exploring land opportunities, rental models, and long-term property investment strategies.
Studying market trends, analyzing companies, and growing my investment portfolio with discipline.
Training for strength, aesthetics, and an hourglass figure through consistent, intentional workouts.
Experimenting with new frameworks, backend architectures, and scalable systems to stay ahead in engineering.
Building digital ideas, designing luxury arrangements through Ginger Bouquets, and developing elegant, modern brand experiences.
Always expanding my knowledge in software engineering, design, and business development.
Sharing my learning journey and technical discoveries
The biggest lesson I learned integrating M-Pesa wasn't about APIs - it was a distributed systems concept called idempotency. Here's the story of how it changed the way I design every backend system.
Have a project in mind? I'd love to hear about it. Let's create something amazing.
I'm currently available for backend development projects, SaaS work, and technical consulting. Whether you need a Django developer, database architect, or someone to help build your next platform, let's discuss how I can contribute to your team.
Available for projects