Farensa Fernanda Setiawan

At BNI, I build and maintain C#/.NET Core REST APIs and Razor/ASP.NET features for Branch Navigation, supporting shared web and mobile backend flows. I publish Swagger/OpenAPI documentation and deliver maintenance across backend and frontend web applications.

I work closely with cybersecurity and QA teams to remediate DAST/SAST findings, validate fixes through OWASP ZAP rescans, configure security headers, and support controlled releases through UAT, SIT, PTR, and production. I’ve also expanded structured logging across more than 50 backend web and mobile modules to improve traceability.

Previously at Care Technologies, I reduced a SQL query from approximately one hour to under 10 seconds through temporary tables and targeted indexing. I also optimized updates on a billion-plus-row table with controlled batch processing, reducing work from roughly three days to 3–4 hours per 200–400 million rows.

I bring hands-on experience across .NET delivery, SQL performance analysis, database workflows, IIS deployments, and SFTP integrations.