Open to opportunities

Oscar Villamarin

@oscarvillamarin

Message

Backend Developer experienced in building secure RESTful APIs.

Panama

Message

What I'm looking for

I am looking for opportunities that allow me to work on impactful backend projects, collaborate in Agile teams, and further develop my skills in a supportive and innovative environment.

I'm a passionate Backend Developer with a strong focus on building secure RESTful APIs using Java Spring Boot. My experience includes integrating with core banking systems and applying industry best practices in performance and API security. I am currently completing my B.Sc. in Software Development at Universidad Tecnológica de Panamá, where I have honed my skills in programming, data structures, and database systems.

In my current role as an Interface Developer at Ladonware Inc, I have successfully developed and maintained over 10 secure RESTful APIs, achieving a 20% reduction in core system response time through asynchronous processing. I take pride in my ability to implement Microsoft Entra ID authentication, which has decreased API vulnerabilities significantly. My commitment to process optimization and Agile development has allowed me to collaborate effectively with teams, enhancing QA efficiency by 40% through thorough documentation and testing.

With a solid foundation in various programming languages such as Java, Python, and C#, along with proficiency in frameworks like Spring Boot and .NET MAUI, I am eager to contribute to high-impact backend projects that challenge my skills and foster my growth in the tech industry.

Experience

Work history, roles, and key accomplishments

Current

Interface Developer

Current

Ladonware Inc

Dec 2023 - Present (1 year 5 months)

Developed and maintained over 10 secure RESTful APIs, optimizing core system response time by 20% through asynchronous processing and implementing Microsoft Entra ID authentication to reduce API vulnerabilities by 30%. Documented and tested APIs using Swagger and Postman, which improved QA efficiency by 40%, and utilized Docker for service containerization and smooth deployment within Agile teams.

Java Spring Boot RESTful APIs Docker Swagger Postman Entra ID Agile Jira

API & App Developer

BG Novus

Jul 2023 - Present (1 year 10 months)

Contributed to the development of a mobile application utilizing .NET MAUI, including comprehensive backend integration. Designed and deployed a stable MySQL database to support mobile backend functionality and participated in sprint discussions, contributing to architectural decisions.

.NET MAUI MySQL Mobile Development Backend Database Design Agile

E-commerce Developer

Chinagangapty

Feb 2021 - Present (4 years 3 months)

Managed the product catalog and implemented online sales strategies, automating tasks to significantly improve operational efficiency. Enhanced customer experience by streamlining digital communication channels and optimizing e-commerce processes.

Process Automation Customer Service Digital Communication