Open to opportunities

Rene Puentes

@renepuentes1

Message

Senior Lead C#/.NET Architect specializing in cloud-native microservices and enterprise system modernization.

United States

Message

What I'm looking for

I seek a senior technical role leading cloud-native, microservices-focused teams where I can modernize legacy platforms, drive performance, and mentor engineers in an Agile, DevSecOps culture.

I am a Senior Lead C#/.NET Architect with 10+ years designing, modernizing, and operating high-availability enterprise systems across Fintech, Healthcare, and SaaS. I lead end-to-end solution delivery, upgrade legacy platforms to modern .NET stacks, and build secure scalable systems supporting 500K+ users.

My technical leadership spans microservices, event-driven architectures, micro-frontends, REST/SOAP APIs, SQL Server and Oracle performance tuning, ETL/SSIS pipelines, and multi-cloud infrastructure (Azure, AWS, GCP exposure). I drive measurable performance gains (up to 40%+), implement containerization and IaC, and strengthen observability and automated testing practices.

I mentor onshore/offshore teams, lead Agile/Scrum ceremonies, and promote DevSecOps and Clean Architecture principles to ensure predictable, high-quality releases and sustainable platform growth.

Experience

Work history, roles, and key accomplishments

Current

Lead Senior Software Engineer

Current

Infosys

Mar 2021 - Present (5 years 3 months)

Led end-to-end architecture and delivery of cloud-native microservices and distributed systems for Fintech and Healthcare, modernizing legacy .NET platforms to .NET 8 and improving performance ~40% while supporting 500K+ users.

C#.NET 8+ASP.NET Core Microservices Azure Docker Kubernetes SQL Server Kafka Redis

Senior C#/.NET Software Engineer

SoftServe

Jun 2018 - Feb 2021 (2 years 8 months)

Designed and delivered scalable backend microservices and containerized deployments for distributed SaaS, optimizing T-SQL and caching to achieve sustained 35–40% performance gains.

C#ASP.NET Core Microservices SQL Server Redis Docker Azure CI CD SSIS

Software Engineer

ScienceSoft

Jan 2016 - May 2018 (2 years 4 months)

Developed enterprise web applications and REST/SOAP integrations for healthcare and financial clients, performing legacy modernization and SQL tuning to improve throughput and latency.

C#.NET Framework ASP.NET SQL Server IIS REST SOAP Windows Server Automated Testing

Education

Degrees, certifications, and relevant coursework

Georgia Institute of Technology

Bachelor of Science, Computer Science

2011 - 2015

Completed a Bachelor’s degree in Computer Science with coursework and projects focused on software engineering, distributed systems, and database technologies.