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OTEE ZIREGBE

@oteeziregbe

Lead Software Engineer at Zipa Digital Solutions Limited; built and launched Zipa’s delivery platform and a Nigerian tax research assistant.

Nigeria

Message

What I'm looking for

Seeking a remote senior backend role with C# and .NET at the core. I design APIs, data models, and distributed systems built for real load. I own architecture, performance, and Azure/AWS infrastructure, and I mentor engineers. Solid React and Next.js when needed. Experience spans fintech, healthtech, edtech, recruitment, logistics, and LLM/RAG

At Zipa Digital Solutions Limited, I architected and built Zipa’s customer, business and rider PWAs, plus its admin dashboard, as the sole engineer. I launched the platform commercially, and it onboarded 10+ merchants and 50+ users within its first six weeks.

I also built and deployed NaijaTax AI, a RAG-based Nigerian tax research assistant. Earlier, at Urvin Finance, I restructured portfolio data storage to improve backend response time by 20%, and at Vatebra Limited, I reduced WAEC result processing from 12 hours to 5 minutes.

Experience

Work history, roles, and key accomplishments

Current

Lead Software Engineer

Current

Zipa Digital Solutions Limited

Feb 2026 - Present (7 months)

Architected and built the full platform from scratch, including customer, business, and rider PWAs and an admin dashboard. Designed a multi-role REST API handling order management, delivery assignment, real-time notifications, and payment processing.

.NET9 C#Next.js TypeScript PostgreSQL Entity Framework Core Hangfire Railway Vercel Paystack Termii Cloudinary

Lead Software Engineer

Urvin Finance

Oct 2021 - Feb 2026 (4 years 4 months)

Designed and led development of a financial social platform, including backend APIs, frontend components, and cloud infrastructure. Restructured portfolio data store, improving backend response time by 20%.

Net 7 C#ABP.Io ASP.NET Core Blazor Clean Architecture PostgreSQL EF Core MediatR Identity Server Azure Cache for Redis Elasticsearch Azure App Service Azure Blob Storage Azure Key Vault Azure DevOps

Fullstack Developer

PlateauMed

Oct 2024 - May 2025 (7 months)

Led full-stack architecture and codebase setup for a nationwide inventory management system. Built high-throughput API endpoints with query optimisation and integrated Metabase for analytics reporting.

Net 7 C#ASP.NET Zero ASP.NET React PostgreSQL EF Core MediatR Azure Cache for Redis Azure Blob Storage Azure Key Vault Azure DevOps

Team Lead / Senior Software Engineer

MVP-Soft

Dec 2022 - Oct 2023 (10 months)

Led a team of 3 developers delivering a full CRM product from API design to React UI components. Built a billing module with bulk SQL insert, cutting bill upload time by 50%.

.NET 6 C#ASP.NET Core React Material UI MS SQL Server EF Core MediatR Clean Architecture DDD

Deputy Chief Software Architect

Cyberspace Limited

Jan 2019 - Oct 2021 (2 years 9 months)

Led a team of 7 as Unit Head of Fintech Division, architecting CyberPay's asynchronous settlement engine and non-blocking payout pipeline. Extended the gateway with USSD, bank transfer, and additional card channels, driving a 50% increase in transactions.

.NET C#ASP.NET Core Azure Service Bus Azure Queue Storage Akka React NodeJS Azure Identity Server Entity Framework Core SQL Server Azure DevOps

Senior Software Engineer

Vatebra Limited

Apr 2015 - Dec 2019 (4 years 8 months)

Team Lead for Government & Educational Solutions, reducing WAEC result processing time from 12 hours to 5 minutes. Designed and implemented Edo State Lottery Tax System, WAEC Sierra Leone Result Verification & PIN Vending, and WAEC Ghana Item Banking solution.

.NET C#ASP.NET MVC ASP.NET Core ASP.NET Web API 2.0 Entity Framework SQL Server Telerik Kendo UI

Senior Software Engineer

Zitech Information Systems

Apr 2012 - Apr 2015 (3 years)

Designed and built a job board, personality portal, and test management system (TMS).

.NET C#ASP.NET Web Forms Entity Framework SQL Server Telerik

Software Engineer

Dragnet Solutions

Jan 2009 - Apr 2012 (3 years 3 months)

Built computer-based testing solutions including a Keirsey temperament sorter, SQL Server backup utility, and customisable job application portals.

.NET C#ASP.NET Web Forms Entity Framework SQL Server Telerik JavaScript

Software Engineer

Kerildbert Holdings Limited

Jan 2008 - Jan 2009 (1 year)

Handled design, development, and maintenance of a logistics solution and company website. Generated custom reports for management and provided desktop/network support.

.NET C#ASP.NET Web Forms SQL Server Telerik JavaScript