Ronny Pacheco
@ronnypacheco1
Senior Software Engineer specializing in C#, Java, and scalable web applications.
United StatesWhat I'm looking for
I am a Senior Software Engineer with deep experience building enterprise-grade web and backend systems for the financial sector, specializing in C#, Java, and Angular. I focus on scalable, maintainable, high-performance solutions, integrating microservices, optimizing databases, and modernizing legacy architectures to cloud-hosted deployments.
I have delivered measurable performance improvements—reducing response times and latency through SQL optimization, caching, and frontend enhancements—and implemented robust testing and DevOps practices using NUnit, JUnit, Docker, Kubernetes, and CI/CD pipelines. I collaborate closely with cross-functional teams to design secure, reliable systems and accelerate delivery through reusable components and automated testing.
Experience
Work history, roles, and key accomplishments
Senior Software Engineer
Citi
Apr 2025 - Present (11 months)
Designed and implemented enterprise-grade web applications using C# and Angular, developed ASP.NET Core RESTful APIs, and integrated Java microservices with core banking systems, reducing SQL response times by 30% and improving scalability.
Senior Software Engineer
JPMorgan Chase & Co.
Jan 2024 - Apr 2025 (1 year 3 months)
Developed full-stack features with Angular frontends and Spring Boot microservices, implemented authentication with Spring Security/ASP.NET Core, and optimized backend and DB queries to reduce page load and query latency by 25%.
Software Engineer
JPMorgan Chase & Co.
May 2022 - Jan 2024 (1 year 8 months)
Built Angular components and backend services in C# and Java for dashboards and reporting, designed relational data models and optimized SQL queries, improving API throughput and reducing latency by 22%.
Software Engineer
JPMorgan Chase & Co.
Jul 2019 - May 2022 (2 years 10 months)
Developed backend services in C# and Java for core financial transactions, migrated legacy web apps to Angular and ASP.NET Core, and improved transaction processing efficiency by 18% through backend optimizations.
Education
Degrees, certifications, and relevant coursework
Florida International University
Bachelor of Science, Computer Science
2015 - 2018
Completed a Bachelor's degree in Computer Science with coursework focused on software development, databases, and web technologies from 2015 to 2018.
Availability
Location
United StatesAuthorized to work in
Job categories
Skills
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