JEM
Empowering ideas through code
Welcome to My Portfolio
I am dedicated to building impactful digital solutions that empower businesses and individuals. Explore my work, skills, and journey below.
Hello, I'm John Emil Modzaka
I'm a passionate mobile app and backend developer with over 5 years of experience building seamless, efficient, and user-friendly applications. My journey began with a curiosity for how technology can solve real-world problems, and has grown into a career where I've led and contributed to impactful projects across education, finance, and property management sectors.
- Developed and launched Oyeh, a school management platform now used by over 5 institutions.
- Architected scalable cloud solutions for fintech and property management startups.
- Integrated advanced LLMs and AI features into mobile and web applications.
My philosophy: "Technology should empower people and simplify lives." I thrive on collaboration, continuous learning, and turning ideas into reality.
When I'm not coding, you'll find me exploring new tech trends, mentoring junior developers, playing basketball or enjoying a good anime.
Projects
Oyeh
A school management application for school management, app for both parent, school admin and teachers.
Electron.js, Node.js, PostgreSql, Flutter, Cloud Architecture, Socket.io
Role: CTO & Lead Developer
Impact: Led the end-to-end development, resulting in adoption by 5+ schools and improved communication between parents, teachers, and admins.
Challenge: Designed a real-time notification system for multiple user roles.
Leveraged Electron for cross-platform desktop support and Socket.io for real-time updates.
Petite Elise Mobile App
A mobile app for a daycare center.
Flutter, Cloud Architecture, Firebase, MySql
Role: Mobile App Developer
Impact: Delivered a user-friendly app for parents to track their children's activities and communicate with staff.
Challenge: Integrated secure photo sharing and real-time updates.
Flutter enabled rapid cross-platform development; Firebase for real-time data sync.
Resolut Finance
Backend development for an online banking system.
Asp.net, Sql Server, Cloud Architecture
Role: Backend Engineer
Impact: Built robust APIs and ensured high security standards for financial transactions.
Challenge: Implemented multi-factor authentication and transaction auditing.
Chose ASP.NET for enterprise-grade security and scalability.
PMC
A property management software for property owners and tenants.
Flutter, LLM integration, Google Maps API, Cloud Architecture
Role: Full Stack Developer
Impact: Enabled seamless property listings, tenant management, and AI-powered support.
Challenge: Integrated LLMs for smart tenant support and automated responses.
Used Google Maps API for geolocation and LLMs for AI-driven features.
Mempay
A payment collection platform for organizations and groups.
React, Cloud Architecture, MySql, Node.js, Nest.js
Role: Backend & Cloud Architect
Impact: Streamlined payment processes for multiple organizations, handling thousands of transactions.
Challenge: Ensured PCI compliance and high availability.
Nest.js provided a modular backend; cloud infra for scalability.
Grandmaster Technologies
A platform for managing and tracking sales and inventory from agents across the country.
React, Flutter, Cloud Architecture, MySql, Nest.js
Role: Lead Developer
Impact: Built a scalable system supporting hundreds of agents and real-time inventory tracking.
Challenge: Handled offline data sync and real-time reporting.
Combined React and Flutter for web/mobile reach; cloud for reliability.
Skills
Frontend
Backend
Mobile
Cloud & DevOps
Other
Soft Skills
Contact
I'm always open to new opportunities and collaborations. Let's build something great together! Whether you have a project in mind, want to discuss tech, or just want to connect, feel free to reach out.
Typical response time: Within 24 hours
Thank you for visiting my portfolio!
Portfolio source code here:https://github.com/MawuliKing/dev
Best regards, John Emil Modzaka