Hi, I'm Tumusiime
Alaphati
Full Stack Developer & UI/UX Designer
Dynamic Full Stack Developer & Product Designer with 5+ years delivering scalable enterprise solutions at MTN MoMo. Expert in React, Node.js, Java, and cloud-native systems with strong UI/UX, DevOps, and agile expertise.
Building digital experiences that matter
I'm a passionate developer and designer based in Kampala, Uganda. Currently at MTN MoMo Uganda as a Product Designer, I bridge the gap between engineering and design to create elegant fintech solutions that serve millions of users across Africa.
Full Stack Development
Building end-to-end solutions with React, Node.js, and Java Spring Boot.
UI/UX Design
Crafting intuitive interfaces using Figma and Adobe XD with user-centered design principles.
Team Leadership
Mentoring 10+ junior developers and leading cross-functional teams to deliver excellence.
Performance Expert
Optimizing systems for 200K+ users with 35% improved development efficiency.
Where I've worked
Product Designer
MTN MoMo Uganda
- ▹Partner with engineering, research, and business units to translate user needs into elegant fintech solutions
- ▹Support technical implementation discussions ensuring UI systems align with backend architecture
- ▹Contribute to designing and improving digital finance products through close collaboration across MoMo's cross-functional teams
Front End Developer & UI/UX Designer
7eleven Technologies
Kampala
- ▹Developed and maintained responsive enterprise systems using React.js, Node.js, and Next.js
- ▹Designed reusable component libraries and front-end frameworks that improved development efficiency by 35%
- ▹Mentored junior designers and developers in agile delivery and user-centered design
- ▹Contributed to architecture design for e-commerce dashboards and payment platforms serving 50K+ users
Technical Lead
Chil Group
United States (Contract)
- ▹Led a cross-functional team of developers and designers in building enterprise-grade systems
- ▹Defined technical architecture and development standards, ensuring clean, maintainable, and scalable codebases
- ▹Supervised CI/CD pipelines and code reviews to ensure timely and high-quality delivery
- ▹Conducted mentoring sessions, boosting team productivity and code quality
Full Stack Developer
Nanomax Technologies
Kampala
- ▹Built and deployed end-to-end web applications with Node.js, React, and Java Spring Boot
- ▹Integrated APIs for payments, authentication, and analytics
- ▹Worked in agile sprints delivering features for health and fintech clients
- ▹Enhanced backend efficiency and server performance by 25%
Key Achievements
200K+ Active Users
Led development of multiple e-commerce products now serving over 200,000 active users
30% Faster Time-to-Market
Designed and implemented design systems that reduced time-to-market by 30%
Engineering-Design Bridge
Recognized for bridging engineering and design disciplines to drive product excellence
10+ Developers Mentored
Guided 10+ junior developers to become mid-level engineers in active fintech roles
Technical Proficiencies
A comprehensive toolkit built over 5+ years of professional experience in full-stack development and UI/UX design.
Languages
Frameworks & Libraries
DevOps & CI/CD
Databases
Design Tools
Core Competencies
Technologies I work with daily
Let's Work Together
I'm always open to discussing new projects, creative ideas, or opportunities to be part of your vision. Feel free to reach out!
Get in Touch
Available for new projects
Currently accepting freelance & full-time opportunities