Douglas Sabwa Indumwa

Full-Stack Developer & a Digital Health Strategist. Developing high-impact, offline-first web, mobile and USSD solutions across healthcare, fintech, academia, tourism, agritech, faith-based and NGOs

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Project Portfolio

Healthcare Systems

Digital Health Solutions

Expertise in building HMIS systems, staff portals, and custom web applications for CBM Low Vision initiatives.

Biometric Systems

Identity & Attendance

Building secure authentication layers using biometric hardware integration for staff attendance tracking.

Finance

Loan & SACCO Systems

Development of scalable loan management platforms including Ufanisi and enterprise financial systems.

M-PESA Integrations

Daraja G2 API Specialist

Implementing C2B/B2C automated payment workflows and instant transaction confirmations.

USSD Applications

Menu-Driven Solutions

Developing offline-accessible mobile menus for wallets, ordering systems, and status tracking.

SMS Integrations

Messaging & OTPs

Integrated automated notification systems for alerts and marketing using Kenyan SMS gateways.

Faith / Ministry

AI & Internal Systems

Developing AI-powered libraries and internal management systems for digital discipleship operations.

Education Portfolio

Websites & Assessment

Building institutional websites and student portals with integrated randomized CAT generators.

Tourism Portfolio

Travel & Booking Sites

Scalable professional websites for travel agencies featuring automated booking flows.

Volunteering & Leadership

Volunteer Staff
Fellowship of Christian Unions (FOCUS) Kenya
Nov 2024 - Present

Empowering campus students in Kenyan universities and colleges around leadership development, discipleship, and social action.

M-PESA Africa Ambassador
Kenyan Developer Communities
June 2025 - Present

Helping to onboard developers to integrate the new M-PESA Africa APIs.

Lead Programming Instructor
Expert Bytes Session
Jan 2024 - Present

Mentoring a community of over 1000+ learners in programming concepts.

Mentor
Young Scientists Kenya
June 2020 - June 2023

Guided multiple high school students in innovation for national competitions.