
brian muigai
@brianmuigai
I build scalable mobile, backend, and AI-assisted engineering systems.
What I'm looking for
I've built mobile and backend systems across fintech, logistics, commerce, and operations platforms for Paycloud, LipaLater, SparePap, Hava, ZUMI, and the Ministry of Livestock.
At LipaLater, I led a Flutter banking service application that increased merchant engagement by 30% and improved app performance by 15% through Spring Boot integrations.
At Hava, I led Android and backend delivery for logistics and mobility products, integrated Google Turn-by-Turn Navigation, and built an AI-powered onboarding validation system using OCR and computer vision workflows.
I'm focused on Kotlin, Flutter, Spring Boot, distributed systems, and AI-assisted development workflows that accelerate delivery while maintaining architectural consistency across large-scale projects and microservices.
Experience
Work history, roles, and key accomplishments
Software Engineer
Paycloud
Jan 2025 - Jun 2026 (1 year 5 months)
- Build and maintain native Android Apps
- Assist in building and maintaining associated Java springboot backend services
- Migrate Android apps from Java to Kotlin
- Migrate android UI from XML to Jetpack compose
- Prepare project for KMP
Lead Technician
Yaay365
Feb 2025 - Nov 2025 (9 months)
Led QA workflows, testing strategy, technical coordination, and engineering communications.
Consulting Technical Lead
Yaay365
Feb 2025 - Nov 2025 (9 months)
- Blending hands-on technical support with team leadership to keep our platform running smoothly
- Led product testing and QA: designed and executed comprehensive test plans and checklists
- Coordinated technical training and communications across engineering and product teams
Senior Software Engineer
SparePap Limited
Jul 2024 - Dec 2024 (5 months)
- Lead the development of Android and IOS applications using flutter from scratch
- Lay down the design paradigms for the projects
- Handle the consumer and merchant projects development
- Lay down github actions for CI/CD
- Secure the project's secret properties during CI/CD
Senior Software Engineer
LipaLater
Sep 2023 - Dec 2024 (1 year 3 months)
Led development of a banking service application using Flutter, increasing merchant engagement by 30%. Integrated mobile applications with Spring Boot backend services, improving app performance by 15%.
Senior Software Engineer
Lipa Later Group
Sep 2023 - Nov 2024 (1 year 2 months)
Generally maintain and update Android apps built by Flutter, Java and kotlin, and also handle a few of the backend microservices built by Spring Boot
Mobile Engineer
SparePap Limited
Jan 2023 - Oct 2024 (1 year 9 months)
Head the creation of Android and IOS apps from scratch. Define the design paradigms for the projects. Handle both the consumer and merchant applications development.
Senior Android software engineer
SparePap Limited
Jan 2023 - Dec 2023 (11 months)
Senior Android software engineer responsible for application development and software design.
Android Software Engineer | Tech Lead
Hava
Oct 2021 - Oct 2023 (2 years)
Led Android development and technical leadership for logistics and mobility platforms.
Lead Technician
Hava
Oct 2021 - Oct 2023 (2 years)
Led end-to-end delivery of Android and backend features for logistics and mobility platforms. Integrated Google Turn-by-Turn Navigation, becoming one of the first companies in Africa to adopt the feature. Analyzed real-time usage data to troubleshoot production issues and improve application performance. Built an AI-powered onboarding validation system using OCR and computer vision workflows. Coor
Software Developer
Freelance
Jun 2019 - Sep 2023 (4 years 3 months)
Freelance software developer working on various projects.
Software Engineer
ZUMI
Jul 2022 - Dec 2022 (5 months)
Built scalable Node.js and TypeScript backend services and API integrations using AWS and GCP.
Back End Developer
ZUMI
Jul 2022 - Nov 2022 (4 months)
Back end developer responsible for backend development and system architecture.
Software Engineer
IVANSIL
Apr 2022 - Jun 2022 (2 months)
Developed a Flutter-based POS and operations platform for car wash businesses.
Software Engineer
Ministry of Livestock
Jun 2019 - Dec 2021 (2 years 6 months)
Designed and implemented Android and backend systems from scratch.
Education
Degrees, certifications, and relevant coursework
Jomo Kenyatta University of Agriculture and Technology (JKUAT)
Bachelor of Science, Mathematics and Computer Science
Jomo Kenyatta University of Agriculture and Technology (JKUAT)
Bachelor's degree, Mathematics and Computer Science
2014 - 2020
Jomo Kenyatta University of Agriculture and Technology
Bachelor of Science, Mathematics and Computer Science
2014 - 2020
Pursued a Bachelor of Science in Mathematics and Computer Science at Jomo Kenyatta University of Agriculture and Technology from 2014 to 2020.
Tech stack
Software and tools used professionally
Availability
Location
Authorized to work in
Salary expectations
Job categories
Skills
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