Senior Backend Developer with 5+ years of experience building scalable backend systems and APIs across fintech, e-commerce, and enterprise platforms. Founder of a multi-category e-commerce product, with strong focus on clean architecture and scalability.

Dennis Mutuma

Senior Backend Developer with 5+ years of experience building scalable backend systems and APIs across fintech, e-commerce, and enterprise platforms. Founder of a multi-category e-commerce product, with strong focus on clean architecture and scalability.

Available to hire

Senior Backend Developer with 5+ years of experience building scalable backend systems and APIs across fintech, e-commerce, and enterprise platforms. Founder of a multi-category e-commerce product, with strong focus on clean architecture and scalability.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
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Language

English
Fluent
Swahili
Fluent

Work Experience

Application developer at KCB Group
November 4, 2024 - Present
Senior Backend Developer at KCB Bank Group, building and supporting enterprise banking systems. Delivered scalable, secure backend services, optimized performance, resolved production issues, and contributed to modern containerized deployments.
Senior Backed Developer at Nathan digital
March 4, 2024 - November 1, 2024
Senior Backend Developer at Nathan Digital, designing and building scalable backend systems for payroll, HRMS, accounting, and enterprise business platforms.
Backend developer at Horizont labs
July 10, 2023 - February 29, 2024
Software Engineer at Horizont Labs, building and modernizing fintech systems, including high-volume transaction platforms and hybrid mobile applications.
Backend developer at Adanian labs
August 9, 2021 - June 30, 2023
Backend Developer at Adanian Labs, building entertainment and event platforms including streaming, ticketing, payments, and artist management systems.
Founder at Mautamu Delivery App
December 24, 2023 - Present
Founder of Mautamu, a multi-category e-commerce platform offering food, groceries, and additional on-demand services. Led product strategy and built the platform end-to-end.
Senior Backend Developer at Nathan Digital
July 1, 2023 - February 29, 2024
Led backend development for multiple projects including ERP, Payroll, Accounting, and Supply Chain systems using Node.js, Express, and MongoDB; deployed via AWS with Bitbucket CI/CD pipelines. Designed and implemented an AI Assistant that streams internal operations, enabling employees and managers to query company policies, personal data, or team information across channels like Web and mobile apps, reducing manual tasks and improving efficiency. Collaborated with cross-functional teams (UI/UX, DevOps, Payments) to ensure seamless feature integration. Built scalable SaaS architecture to support rapid deployment of new features across multi-tenant clients.
Senior Backend Developer at Nathan Digital
March 1, 2024 - November 30, 2024
Architected and implemented an AI Assistant and a scalable backend architecture to support SaaS offerings across multiple client systems; integrated with Payments and OAuth; improved deployment speed; utilized Node.js, Express, and MongoDB; containerized via Docker and orchestrated through AWS; led cross-functional collaboration (UI/UX, DevOps, Payments) to ensure seamless feature integration and timely delivery across projects.
Senior Backend Developer at Adanian Labs
November 1, 2024 - Present
Lead backend development for an entertainment platform with over 50k active users, enabling artists to upload content for streaming, voting, tipping, and selling merchandise; integrated a secure payment module. Developed scalable solutions using Node.js, Express, MongoDB, and Redis caching; implemented real-time system monitoring with Loki and Grafana; collaborated with security teams on data encryption, access control, and compliance; worked with cross-functional teams to ensure seamless feature integration and robust CI/CD pipelines on AWS.

Education

Bachelor of Engineering at Moi University
September 5, 2016 - December 16, 2022
Electrical and telecommunications Engineering
Bachelor of Engineering in Electrical and Telecommunication Engineering at Moi University
January 11, 2030 - December 24, 2025

Qualifications

Cisco CCNA
January 11, 2030 - December 24, 2025

Industry Experience

Telecommunications, Software & Internet, Computers & Electronics, Media & Entertainment, Education, Financial Services, Professional Services

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
See more