Oscar B.
Senior Full Stack Developer
Open to offersNew to PlatformAbout
Oscar B. is a seasoned Senior Full Stack Developer based in San José, Costa Rica, known for a decade of expertise in designing, building, and delivering modern web applications. At Publicis Re:Sources, he enhanced enterprise-level applications using .NET Core and React, emphasizing API performance and cloud readiness with Microsoft Azure. His career at Fortem Dev Services involved delivering integrated services and applications for network devices, while ensuring quality through rigorous unit testing and CI/CD improvements in Azure DevOps. At Datasys Group, he expanded SAP Business One extensions and optimized web applications for enterprise clients. Previously, Oscar demonstrated leadership as a .NET Developer for MDG Developers Group and Exceltec Business Solutions, where he implemented robust solutions for Walmart Central America and the Central Bank of Costa Rica. His broad skill set spans technologies such as C#, TypeScript, Docker, Kubernetes, and RESTful API design, underpinned by a commitment to Agile methodologies and continuous learning of emerging technologies like GraphQL.
Experience
Senior .NET Developer
Publicis Re:Sources · 2022 — 2026Designed and developed features in enterprise-level web applications using .NET Core and React. Built and optimized RESTful APIs with ASP.NET Core and EF Core, enhancing maintainability and response times. Worked alongside UI/UX and QA teams to deliver quality software within agile sprints. Produced technical documentation and conducted peer code reviews to align with architecture standards. Assisted in migrating legacy .NET Framework services to modern cloud-ready APIs in Azure.Senior .NET Developer
Fortem Dev Services Ltda. · 2019 — 2022Delivered embedded service integrations and applications for network devices and servers utilizing C# and .NET Core. Maintained software quality through unit testing and code review processes. Directed the maintenance and enhancement of critical internal applications featuring continuous deployment in Azure.Senior .NET Developer
Datasys Group · 2019 — 2019Developed SAP Business One extensions with .NET Framework while optimizing existing web applications. Improved database procedures and performed performance tuning to support enterprise client needs..NET Developer
MDG Developers Group · 2018 — 2019Designed and implemented new features for Walmart Central America applications using ASP.NET MVC. Acted as a technical lead for a small team, coordinating QA efforts during release cycles..NET Developer
Exceltec Business Solutions · 2017 — 2018Oversaw end-to-end development for the Central Bank of Costa Rica (BCCR), providing significant architectural system enhancements. Participated in Agile/Scrum sprints to design, test, and deploy effective solutions for critical financial applications. Developed test strategies and cases to ensure product quality and compliance with regulations.Analyst & .NET Developer
Crux Consultores · 2016 — 2017Developed and maintained client applications employing WinForms and ASP.NET. Transitioned legacy VB Script solutions to modern .NET Framework versions to improve security and stability. Created custom plugins for SAP Business One to expand functionality and integrate workflows.Developer
Logical Data · 2012 — 2015Constructed and supported enterprise applications using ASP.NET and SQL Server. Engaged in all phases of the SDLC, from requirements analysis through to deployment and support.
Skills & Expertise
Education
- Bachelor's Degree in Software EngineeringFidélitas University · 2011 — 2013