Óscar Rivera

Available to hire

Hi, I’m Óscar Rivera. I’m a software developer with 4+ years of full-stack experience specializing in Angular and .NET.

About

Hi, I’m Óscar Rivera. I’m a software developer with 4+ years of full-stack experience specializing in Angular and .NET. I enjoy building interactive dashboards and data-driven applications that help teams make better decisions.

I’ve migrated legacy components to modern frameworks, implemented unit and automation testing, and collaborated in Agile teams to deliver high-quality features. I’m passionate about creating scalable solutions that balance performance, usability, and business impact.

  • 4 years' experience
  • Joined March 2026

Languages

  • Spanish; CastilianFluent
  • EnglishAdvanced

Industry experience

  • Software & Internet
  • Education
  • Professional Services
  • Computers & Electronics

Work experience· 6 roles

Software Engineer · Focus Services (NiCE)Jan 2025 – Jan 2026 · 1 yr 1 mo

Developed and migrated multiple components in Angular to reduce load times. Designed and maintained .NET backend controllers to support reporting modules and data-driven analytics. Improved system performance and maintainability through code optimization and best practices. Contributed to higher test coverage by implementing unit tests in Angular.

Software Developer · Focus ServicesMay 2022 – Dec 2024 · 2 yrs 8 mos

Built reporting modules and dashboards in Angular and .NET to support 500+ employees in performance tracking; improved KPI visibility by creating custom reporting tools for call-center operations; delivered features in Agile sprints with on-time delivery and low defect rate.

Software Developer · Focus Services (Clearview)May 2022 – Dec 2024 · 2 yrs 8 mos

Built reporting modules and dashboards in Angular and .NET to support 500+ employees in performance tracking. Improved KPI visibility by creating custom reporting tools for call-center operations. Delivered features in Agile sprints with consistent on-time delivery and low defect rate.

Software Developer · Instituto Nacional de NahuizalcoJul 2021 – Nov 2021 · 5 mos
Instructor · Universidad de SonsonateJan 2021 – Dec 2021 · 1 yr
Software Developer · CEADSVOct 2020 – May 2021 · 8 mos

Education

Bachelor of Science in Computer Systems Engineering · Universidad de Sonsonate, El Salvador2018 – 2023
Bachelor of Science in Computer Systems Engineering · Universidad de Sonsonate, El Salvador2018 – 2023

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