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Juan Rincón

@arrietadev

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System Engineer with 12+ years building .NET web/mobile apps and optimizing secure software

Venezuela

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What I'm looking for

I’m looking to build and improve secure .NET web and mobile applications, optimize APIs for performance, and work in a proactive team where I can apply my backend/frontend skills, security standards, and process optimization to achieve clear objectives.

I’m a System Engineer with 12 years of experience delivering backend and frontend work across web and mobile projects. I develop applications using modern .NET technologies, and I focus on optimizing web APIs while applying security standards to improve software quality and customer satisfaction.

I’ve contributed as a Semi Senior Xamarin Developer, designing and implementing APIs that consume lists from different sources and sorting them according to requirements, and building new system functionality to serve hundreds of customers. Earlier, as a Junior Software Engineer, I improved the efficiency of database work (stored procedures & SQL queries) and increased the speed of a .NET MVC application by migrating from .NET Framework to .NET Core.

Experience

Work history, roles, and key accomplishments

Software Engineer Intern

Unefa

Jun 2015 - Dec 2015 (6 months)

Created a university scholarship management system so administrative staff could track scholarship recipients' hours. Supported delivery of internal tools to improve scholarship administration processes.

Application Development Data Management System Design

Software Engineer (Freelance)

KayienSoft

Dec 2010 - Apr 2015 (4 years 4 months)

Designed, created, and implemented hybrid desktop and web systems to modernize infrastructure and meet customer needs. Built a cloud-connected database to store manual records in an integrated system and improve data management.

System Modernization Database Design Cloud Data Storage System Integration Requirements Gathering