>_ Hi, my name is
José Kupeka Muhlanga.
|
Full Stack Software Engineer with 3+ years of experience building scalable web platforms and distributed backend systems across the health, finance, media, and government sectors. Proven track record delivering mission-critical systems including payment gateways, tax compliance integrations, and cloud-deployed platforms supporting national-scale operations.
~ $ ./deploy.sh --env prod
▸ Building containers...
✓Health checks passed
✓API gateway online
✓3 microservices running
~ $ ▋
01. About Me
/**
*Hello! I'm José — a Full Stack Engineer who enjoys creating efficient software solutions. With over 3+ years of experience, I've honed skills in monolithic and microservice architectures, with a strong foundation in API security and DevOps practices.
*My work spans Healthcare (HMIS), Fintech, Media, and Government infrastructure. Passionate about performance optimisation, clean architecture, and end-to-end delivery.
*@languages "English · Swahili · French · Portuguese"
*/
export const engineer = {
location: "Nairobi, Kenya",
openTo: "remote & on-site opportunities",
};
Education
Bsc. Computer Science
Africa Nazarene University
2017 - 2022
Certifications
- DevOps CI/CD (Moringa School)
- Software Engineering (Moringa)
- Java (Vanderbilt/Coursera)
- CCNA (2019)
02. Tech Stack
Backend
Languages
DevOps & Cloud
Frontend
Data & Messaging
AI Tools
Technologies & Tools
03. Where I've Worked
Software Engineer
Sep 2023 - PresentChristian Health Association of Kenya (CHAK)
- +Maintained and extended HMIS modules using Laravel, JavaScript, and Node.js, improving data accuracy and system reliability by 23%.
- +Engineered Java- and Go-based microservices for authentication, reporting, and synchronisation, reducing cross-system integration failures by 31%.
- +Optimised hybrid monolithic and microservice architecture under bandwidth constraints, improving average response performance by 41%.
- +Delivered secure financial and statutory integrations including M-Pesa mobile payments and eTIMS tax compliance, supporting real-time billing workflows.
- +Coordinated feature delivery with distributed developers and healthcare stakeholders across multiple counties using asynchronous sprint workflows.
- +Trained healthcare workers across regions, accelerating user adoption and reducing support dependency.
Software Engineer (Consultant)
Nov 2024 - Sep 2025Africa Road Maintenance Fund (ARMFA)
- +Developed and deployed a Next.js corporate website with CMS integration, increasing content update efficiency by 43%.
- +Built and launched a Spring Boot learning management system on AWS, reducing internal training delivery time by 37%.
- +Migrated organisational email and identity services to Microsoft 365, enabling standardised collaboration across departments.
- +Conducted infrastructure audits and supported device refresh initiatives, improving baseline system reliability by 27%.
- +Ensured infrastructure alignment with NGO IT and security standards, strengthening compliance posture.
Software Engineer
Jan 2023 - July 2023Africom Media LTD
- +Developed secure peer-to-peer transaction APIs using Java and Spring Boot, improving transaction processing reliability by 38%.
- +Standardised API schemas and mock services, cutting integration testing rework by 33%.
- +Implemented JWT-based authentication and access control mechanisms to secure financial operations.
- +Supported reporting and reconciliation features essential to transaction visibility.
Software Engineer - Intern
Sep 2021 - Feb 2022Alliance Française
- +Provided technical support for office infrastructure.
- +Designed digital feedback surveys and analyzed data for insights.
Software Engineer - Attaché
May 2021 - Aug 2021Kenya Revenue Authority
- +Built batch data processing models using Apache NiFi (JS/MongoDB).
- +Contributed to Apache Kafka streaming pipelines.
- +delivered live demos of open-source data pipelines.
04. Featured Projects
DukaFlowPOS
A full-featured Point of Sale system built for small and medium retail businesses, supporting product management, sales tracking, and transaction reporting with an intuitive interface.
NiaJasiri Website
Corporate website for NiaJasiri, built with a modern stack and optimised for content management, performance, and accessibility.
Mpesa Integration – CHAK HMIS
Developed a secure mobile payment module enabling real-time M-Pesa transactions for patient billing, implementing STK Push workflows and callback handling with seamless integration into existing hospital financial and clinical systems.
eTIMS Integration
Implemented statutory eTIMS integration to support tax compliance through digital signature configuration, secure invoice submission, and real-time callback processing aligned with Kenya Revenue Authority requirements.
AfyaLink (SHA) Gateway
Designed and delivered an integration gateway connecting HMIS and SHA platforms, enabling automated invoice posting, real-time pre-authorisations, and eligibility verification through secure API orchestration.
Financial Transaction Gateway
Built a secure full-stack financial transaction system supporting peer-to-peer transfers, user authentication, and transaction reporting, ensuring data integrity and controlled access across payment workflows.
05. What's Next?
Get In Touch
I'm currently open to new opportunities in Full Stack Engineering and DevOps. Whether you have a question or just want to say hi, I'll try my best to get back to you!