Available for freelance & consulting
Crafting modern healthtech products for impact
I’m Comfort, a software engineer focused on Android and digital health. I design and build accessible, performant experiences that scale in the real world.

Skills & toolkit
A focused stack across Android and backend to ship end‑to‑end.
Mobile & Backend Development
Android Development • FHIR • KtorAndroid Development
Native Android apps with focus on healthcare solutions
FHIR
Healthcare data standards and interoperability
Ktor
Kotlin framework for building connected applications
Programming Languages
Kotlin • SQLKotlin
Primary language for Android development and backend services
SQL
Database design, queries, and data management
Tooling & Practices
Git & Collaboration • CI/CD • Auth & IAM (Keycloak) • TestingGit & Collaboration
Branching strategies, code reviews, and release workflows
CI/CD
Automated builds, tests, and deployments
Auth & IAM (Keycloak)
Identity brokering, SSO, and OAuth2/OIDC flows
Testing
Robust test strategy across layers
Featured Projects
Healthcare-focused mobile and web applications that make a real impact on people's lives
FHIRCORE
FHIRCORE
Software Engineer • 2022-2024
FHIRCORE
Software Engineer • 2022-2024
Open-source Android application framework for building FHIR-based healthcare applications. Collaborated with ONA team from Kenya to create scalable digital health solutions.
HYMN BOOK
HYMN BOOK
Android Developer • 2020-2022
HYMN BOOK
Android Developer • 2020-2022
Digital hymn book application providing easy access to religious songs and worship materials for mobile users.
Georgia TB Reference Guide
Georgia TB Reference Guide
Android Developer • 2020-2022
Georgia TB Reference Guide
Android Developer • 2020-2022
Healthcare reference application for tuberculosis treatment guidelines, supporting healthcare workers in Georgia.
TypeU
TypeU
Android Developer • 2020-2022
TypeU
Android Developer • 2020-2022
Educational mobile application focused on diabetes management and patient education.
OpenAMR
OpenAMR
Software Engineer • 2020-2022
OpenAMR
Software Engineer • 2020-2022
Open-source antimicrobial resistance surveillance system for tracking and managing drug-resistant infections.
MAMALOVE
MAMALOVE
Full-Stack Developer • 2020-2022
MAMALOVE
Full-Stack Developer • 2020-2022
Maternal health platform providing resources and support for expecting mothers and healthcare providers.
Professional Journey
Building healthcare technology solutions that make a real difference in people's lives across Africa
Software Engineer
D-Tree International
Served as a Software Engineer developing Android-based FHIR projects in collaboration with the ONA team from Kenya, driving healthcare technology solutions for digital health interventions.
Key Achievements:
- Collaborated with international teams to deliver scalable healthcare solutions
- Implemented FHIR standards for healthcare data interoperability
Lead Application Developer
Global Health Informatics Institute (AppHatchery)
Developed Android applications for digital health interventions, focusing on healthcare technology solutions that improve patient outcomes and healthcare delivery across Africa.
Key Achievements:
- Led development of insulin management and trauma patient care applications
- Engineered Android applications for tuberculosis (TB) treatment and patient care
- Built multiple healthcare mobile applications published on Google Play Store
- Developed TypeU diabetes education app for Emory University
- Created Georgia TB Reference Guide for healthcare workers
- Contributed to OpenAMR antimicrobial resistance surveillance system
Education & Skill Development
Formal education and certifications that shaped my engineering foundations
Education & Skill Development
Daeyang University
Completed Bachelor of Science in Information & Communication Technology while building foundational programming skills and earning industry certifications.
Key Achievements:
- Graduated with BSc in Information & Communication Technology
- Earned Google Certified Associate Android Developer certification
- Completed Developing Android App with Kotlin certification
- Built strong foundation in mobile development and software engineering
Let's Build Something Amazing
Ready to create healthcare technology that makes a difference? Let's collaborate on your next digital health project.
Get In Touch
Phone
Location
Lilongwe, Area 18, Malawi
GitHub
github.com/calmwalijaInterests
When I'm not coding, you'll find me playing volleyball or listening to music.
I'm passionate about building healthcare technology that improves lives. Let's discuss how we can work together to create meaningful digital health solutions.