Collins Korwuta

Detail-oriented Computer Science graduate from Kwame Nkrumah University of Science and Technology with First Class Honours and Valedictorian recognition. Proficient in software engineering, full-stack development, system design, and applied artificial intelligence, with a focus on creating scalable digital products in health tech, edtech, and business automation. Skilled in Java, JavaScript, SQL, Spring Boot, React, PostgreSQL, and Docker, bringing a pragmatic approach to software development. Currently leading the Research and Development Unit at Spagad Technologies Ltd, driving innovative product design and fostering collaboration in dynamic environments.

• Samuel, Owusu, CEO, samowusu2@gmail.com, +233 20 359 0887, Spagad Technologies LTD
• Charles, Giwa, Audit Head, LTO, charles.giwa@gra.gov.gh, +233 24 297 5535, Ghana Revenue Authority (GRA)
• Michael, Nokrah, CEO, nokrahdev@gmail.com, +233 24 749 3826, Church Mouse App, Hostel Gig
• Emmanuel, Ahene, Lecturer, Department of Computer Science, aheneemmanuel@knust.edu.gh, +233 20 343 4503, KNUST

Ultifix Ghana – Chief Technology Officer (CTO) and Lead Developer Mini Mart POS System – Lead Developer Nexus Asset Management – Lead Backend Developer AI-Powered Coding Platform – Lead Developer Ledger Cleansing Model – Ghana Revenue Authority (GRA) Banking app (personal project) – GCB Bank clone and UX overhaul Blood Donation System – Co-Developer Crop Yield Prediction System – Co-Developer Social Media App – Full Stack Developer

Jan 2024 – present

Ultifix Ghana is a mobile-first service platform designed to connect clients with qualified artisans across Ghana, aiming to reduce youth unemployment by digitally transforming skilled labor markets.

• Spearheaded the entire technical architecture and product vision as CTO, leading a cross-functional development team
• Built the backend system using Node.js (ExpressJS) and PostgreSQL, implementing robust RESTful APIs and dynamic business logic.
• Integrated Google Maps API to match clients with artisans based on geolocation, availability, and trade specialization.
• Designed and deployed multi-role access for artisans, admins, and customers, incorporating secure login and profile management with Firebase Authentication.
• Implemented Firebase Cloud Messaging (FCM) for real-time push notifications.
• Integrated mobile money payment gateway for secure in-app transactions.
• Developed the admin dashboard with analytics, and real-time service tracking
• Scaled backend services to support over 10,000 concurrent users with high availability and fault tolerance

2024 – Present
A custom-built Point-of-Sale (POS) system designed for retail mini-marts and pharmaceutical outlets, developed to streamline sales, track inventory, and support cashier operations in environments with intermittent internet and electricity.

• Built the core application using JavaScript and VBScript, providing a seamless desktop-based user experience without reliance on external frameworks.
• Implemented key features such as product scanning, dynamic price calculations, cart handling, discounts, and transaction history tracking.
• Integrated batch tracking logic into the inventory system, enabling precise monitoring of product expiry dates—especially for pharmaceuticals.
• Designed and coded vendor management and supply restocking modules, enabling store managers to track supply sources and automate replenishment notifications.
• Developed user authentication and session management features to control cashier access and log sensitive operations (e.g., price overrides, refunds).
• Built printable receipt generation and cash drawer logging for accountability.
• Ensured offline compatibility, so store operations could continue during network outages with automatic data syncing once restored.
• Optimized performance for low-resource systems, ensuring smooth usage even on older hardware commonly found in local Ghanaian mini-marts.

2024 – Present 

An enterprise-grade system that helps institutions manage and monitor physical assets.

• Developed backend services using Spring Boot and PostgreSQL, implementing core modules like asset tracking, depreciation computation, and maintenance logs.
• Integrated Role-Based Access Control (RBAC) and scheduled maintenance alerts via email.
• Engineered REST APIs for both web and mobile access, supporting hundreds of users across institutions.

2024

An interactive, gamified platform for teaching programming to beginners using AI-generated hints and live feedback.

• Implemented a live code editor and challenge system with Node.js backend and JavaScript frontend.
• Integrated TensorFlow.js for personalized hint suggestions and adaptive difficulty.
• Designed user progress tracking and gamified elements like achievements and leaderboards.

2023

A system designed to identify and resolve inconsistencies in tax ledgers.

• Developed with a team using Python and SQL, focusing on cross-ledger validation, anomaly detection, and data merging.
• Resulted in significant time savings for tax auditors and improved filing accuracy.

2023

A complete re-imagining of the GCB mobile app, built as a portfolio project to enhance user experience and reliability.

• Created using Java (Android) and Firebase, supporting login, transfers, bill payment, and statements.
• Focused on modern UI/UX, intuitive navigation, and improved user engagement.

2022

A system connecting hospitals and registered blood donors in real time.

• Developed using Node.js and EJS, with real-time notifications and blood-type filtering.
• Enabled emergency requests and SMS alerts to available, nearby donors.

2022

A machine learning application that forecasts expected crop yields based on soil, weather, and planting data.

• Used Python (scikit-learn) and Flask, integrating real agricultural datasets and user-friendly web interface.
• Achieved prediction accuracy of 85%+ in test datasets.

2021

A lightweight social platform for university students to connect and share updates.

• Built using Node.js, MongoDB, ReactJS, and Socket.io for real-time features like chat and notifications.
• Included profile management, media uploads, and privacy settings.

• Lead Developer for Ultifix Ghana
• Lead Backend Developer for Nexus Asset Management.
• Lead Developer for Research and Development department, Development Unit at Spagad Technologies Ltd

• Class Valedictorian (2024)