Open to opportunities

williams Sandra

@williamssandra

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Junior .NET developer focused on backend fintech systems.

Nigeria

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What I'm looking for

I seek a collaborative, growth-oriented fintech or software team where I can build scalable backend systems, expand into full-stack .NET responsibilities, and advance my cloud/DevOps skills.

I am a Junior .NET Developer with two years of hands-on experience building and optimizing backend financial systems using C#, .NET Core, ASP.NET, and SQL. At ErrandPay I designed and maintained RESTful APIs, implemented CI/CD pipelines with Azure DevOps, integrated AWS services for secure data storage and background processing, and contributed to a microservices-based fintech platform that improved system performance and transaction reliability.

I progressed from backend intern to developer, delivered production-ready features, wrote unit tests (xUnit/NUnit), and improved reconciliation and reporting efficiency while collaborating in Agile teams. I am eager to contribute my backend expertise, grow into a stronger full-stack .NET engineer, and help build scalable, secure financial applications.

Experience

Work history, roles, and key accomplishments

Current

Backend Developer

Current

ErrandPay Ltd

May 2024 - Present (2 years 2 months)

Progressed from Backend Intern to Backend Developer and delivered production-ready fintech backend features, improving system performance by 30% and ensuring reliable multi-currency transaction processing.

C++.NET Core ASP.NET Entity Framework Dapper PostgreSQL Azure DevOps xUnit S3

Education

Degrees, certifications, and relevant coursework

University of Benin

Bachelor of Science, Economics

Grade: Second Class Upper Division (GPA: 4.19)

Activities and societies: Secretary General, National Economics Student Association (UNIBEN Chapter, 2022); Head, Child Abuse Response Team, Living Your Dreams Initiative (2019–2022)

Completed a Bachelor of Science in Economics with Second Class Upper Division, achieving a GPA of 4.19.