Available to hire
Hi, I’m Onwuka Peter Emeka, a Senior Full-Stack Engineer with over a decade of experience designing, building, and maintaining scalable backend and full-stack systems across government, education, fintech/SME enablement, healthcare, e-commerce, and real estate. I specialize in .NET technologies (ASP.NET Core, C#, MSSQL) and the MERN stack (MongoDB, Express, React, Node.js), with a focus on platform reliability, data integrity, and long-term scalability. I’ve led technical teams, served in CTO roles, and architected multi-year production systems used by national institutions and large marketplaces.
I thrive on solving complex problems, driving architectural decisions, and delivering maintainable software while mentoring engineers and shaping engineering culture. My work spans multi-tenant platforms, training ecosystems, and cloud-enabled services, always prioritizing quality, security, and measurable impact.
Skills
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Language
English
Fluent
Igbo
Fluent
Hausa
Fluent
Work Experience
Chief Technology Officer / Senior Full-Stack Engineer (.NET Focus) at Juray Smart Solutions
January 1, 2023 - PresentLead architect delivering national-scale digital platforms for federal agencies and enterprise clients; responsible for backend engineering, multi-tenant architecture, database design, MERN/.NET full-stack development, and DevOps.
Software Developer at Exwhyzee Technologies Ltd
January 1, 2015 - January 1, 2018Developed backend modules in C# and .NET Framework for MIS, portals, and business applications; assisted in system design, debugging, and database management.
Lead Developer at Exwhyzee Technologies Ltd
January 1, 2018 - January 1, 2021Designed and built iSkools, a SaaS school management platform used by 100+ schools; modernized and scaled the Ahioma Marketplace to 6,000 vendors and 36,000+ products; led development teams and introduced engineering best practices.
Senior Developer / Consultant at Exwhyzee Technologies Ltd
January 1, 2021 - PresentBuilt and deployed multiple MERN-based business websites; led development for large-scale e-learning and automation projects; mentored 50+ developers and contributed to training initiatives.
Personal Assistant (Technical) at NIPSS National Institute for Policy and Strategic Studies
March 1, 2022 - December 1, 2022Led the development of the SEC44 Program Management Portal for academic, administrative, and event operations; supported senior executives with technical operations and workflow optimization.
Freelance Full-Stack Engineer (.NET + MERN) at Freelance / Independent Contractor
January 1, 2022 - PresentDelivered projects including FinADs Fintech Platform (ASP.NET Core + MSSQL with AI-powered modules), Chosen Health UK (Shift/Rota Management), and Imo State Revenue Automation (MAUI + .NET API).
CTO / Senior Full-Stack Engineer (.NET Focus) at Juray Smart Solutions
January 1, 2023 - November 1, 2025Led technology strategy and hands-on engineering for government and enterprise platforms. Designed and maintained a multi-tenant web engine powering 100+ government and corporate websites with isolated databases and RBAC, architected the IMAM & MIYCN National Training Platform supporting 12,000+ users and 9,000+ certifications, developed Koboview (advertising/rewards) with analytics dashboards and payments, and introduced CI/CD automation, improving production reliability by ~60%.
Chief Technology Officer (CTO) at Exwhyzee Technologies Ltd
December 1, 2025 - PresentStrategic technology direction, platform architecture, and engineering leadership across products and client systems; focus on long-term scalability, security, modernization, and operational stability.
Freelance Full-Stack Software Engineer (.NET & MERN) at Self-employed / Freelance
January 1, 2022 - PresentDelivered independent consulting and development for clients including FinADs fintech platform (ASP.NET Core & MSSQL), Chosen Health UK shift/rota system (ASP.NET Core & MSSQL), and Imo State Revenue Automation (.NET MAUI & APIs).
Personal Assistant (Technical) at National Institute for Policy and Strategic Studies (NIPSS)
March 1, 2022 - December 1, 2022Led development of the SEC44 Program Management Portal for the Senior Executive Course 44; supported executive operations and digital coordination; contributed to design and deployment that informed subsequent portal project.
Education
B.Sc. in Computer Science at Michael Okpara University of Agriculture, Umudike
January 1, 2013 - January 1, 2017B.Sc. Computer Science at Michael Okpara University of Agriculture, Umudike
January 1, 2013 - January 1, 2017Qualifications
Productivity & Engineering Training
January 11, 2030 - December 10, 2025Software Development (VB.NET, HTML, PHP, Java)
January 11, 2030 - December 10, 2025JCI Leadership Training
January 11, 2030 - December 10, 2025Productivity & Engineering Training
January 11, 2030 - January 14, 2026Software Development (VB.NET, HTML, PHP, Java)
January 11, 2030 - January 14, 2026JCI Leadership Training
January 11, 2030 - January 14, 2026Industry Experience
Government, Financial Services, Healthcare, Education, Software & Internet, Real Estate & Construction, Retail, Media & Entertainment, Professional Services
Skills
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