valentine michael
@valentinemichael
Backend developer at Harmony Kloud building secure authentication and real-time workflows for an ABA therapy platform.
NigeriaWhat I'm looking for
At Harmony Kloud, I build secure authentication and authorization flows for a production ABA therapy management platform, following healthcare compliance standards. I also developed backend logic for nested file uploads, validation, and real-time transactional workflows used by mobile apps.
At Maliroso Digital, I built Node.js APIs and server-side systems for government waste collection dashboards and municipal tracking operations. I reviewed pull requests, maintained technical documentation, and mentored junior engineers.
At Digital Dreams Ltd, I designed backend services, RESTful APIs, and transactional database workflows for SMEs in healthcare, finance, and logistics. I structured Express.js applications with MVC patterns and mentored over 200 aspiring developers in JavaScript, Node.js, and REST API development.
My projects include the Kingsway Diagnostics Platform, where I built backend features for a multi-department diagnostics operation, and QuestUnit Services Marketplace, with real-time job updates and in-app chat. I’m immediately available for full-time remote Backend Developer roles.
Experience
Work history, roles, and key accomplishments
Full-Stack Engineer (Mobile & Backend)
Harmony Kloud
Mar 2025 - Present (1 year 7 months)
Built and integrated secure authentication and authorization flows for a production ABA therapy management platform, adhering to healthcare compliance standards. Implemented real-time data synchronization and scalable transactional workflows for Android and iOS apps.
Fullstack Engineer
Maliroso Digital
Jul 2023 - Feb 2025 (1 year 7 months)
Built and integrated Node.js APIs and server-side logic powering high-throughput dashboards and workflow systems for government waste collection and municipal tracking operations. Conducted rigorous pull request reviews and mentored junior engineers.
Full-Stack Software Engineer
Digital Dreams Ltd
Oct 2020 - Jun 2023 (2 years 8 months)
Designed and built backend services, RESTful APIs and transactional database workflows with Node.js, Express.js, PostgreSQL and MySQL for SMEs in healthcare, finance and logistics. Mentored over 200 aspiring developers through a structured 6-month training program.
Education
Degrees, certifications, and relevant coursework
Nnamdi Azikiwe University
Bachelor of Science, Computer Science
2011 - 2015
Bachelor of Science in Computer Science from Nnamdi Azikiwe University, Nigeria, completed in 2015.
Tech stack
Software and tools used professionally
Availability
Location
NigeriaAuthorized to work in
Portfolio
chionye.github.io/my-portfolioSalary expectations
Job categories
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