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Carlos Vargas

@carlosvargas

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Senior Software Engineer with expertise in scalable full-stack systems.

United States

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What I'm looking for

I am looking for a role that fosters innovation, encourages collaboration, and offers opportunities for professional growth.

I'm Carlos Vargas, a Senior Software Engineer with over 10 years of experience in building scalable full-stack systems and integrating AI tools. My journey has been marked by a proven track record in workflow automation and developing LLM-powered assistants, all while focusing on clean architecture and fast delivery. I thrive in environments where I can leverage modern web stacks, particularly with TypeScript, Node.js, React, and AWS, to create impactful solutions.

Throughout my career, I have spearheaded numerous projects, including the development of internal tools that reduced manual effort by 38% and designed cloud-first architectures that doubled system scalability. My experience spans various roles, from leading the end-to-end development of multi-tenant dashboards to optimizing CI/CD workflows for zero-downtime deployments. I am passionate about utilizing technology to enhance user experiences and drive measurable results.

Experience

Work history, roles, and key accomplishments

Senior Full-Stack Engineer

Softech Consulting

Jan 2024 - Jul 2025 (1 year 6 months)

Spearheaded the development of LLM-powered internal tools and AI assistants for client operations automation, reducing manual effort by 38%. Designed cloud-first architecture using NestJS, PostgreSQL, and Docker on AWS, boosting system scalability by 2x.

LLM NestJS PostgreSQL Docker AWS OpenAI Assistants API React TypeScript GraphQL GitHub Actions)CI CD

Senior Full-Stack Engineer

Upstart13

Oct 2023 - Jan 2024 (3 months)

Developed React + Node.js features for HomeStory’s real estate recommendation engine. Refactored data sync layer using TanStack Query and caching, reducing API latency by 37%.

React Node Tanstack Query Caching Docker CI CD

Full Stack Engineer

4D Pipeline

Oct 2018 - Mar 2023 (4 years 5 months)

Delivered full-stack web solutions for Fortune 500 clients in architecture, design, and 3D visualization domains. Built 3D asset manager using Vue.js and Express.js to support real-time collaboration on architectural models.

Vue.Js WebSockets Redis AWS CodePipeline GraphQL TypeScript 3D Visualization

Software Developer

Clio – Legal Practice Management Software

Mar 2017 - Jun 2018 (1 year 3 months)

Developed Clio’s first mobile app using React Native and Redux, enabling thousands of lawyers to manage cases on the go. Contributed to a secure Angular admin panel integrated with Ruby on Rails backend.

React Native Redux Angular Ruby on Rails AWS S3 Elasticsearch

Software Development Engineer

Amazon Music

Feb 2012 - Apr 2016 (4 years 2 months)

Developed Android UI components for Amazon MP3 store and playback features used by 1M+ users. Collaborated with product and design teams to launch offline music mode and in-app search.

Android UI Mobile Development Performance Optimization Cross Platform Development

Cloud Technologies Intern

Symantec

Jun 2012 - Nov 2012 (5 months)

Prototyped security monitoring tools using AWS and OpenStack APIs. Delivered internal demos showcasing secure cloud architecture for enterprise antivirus platforms.

AWS OpenStack Security Monitoring Cloud Architecture Prototyping

Education

Degrees, certifications, and relevant coursework

San José State University

B.S. in Computer Science, Computer Science

2008 - 2012

Completed a Bachelor of Science degree focusing on Computer Science. Gained foundational knowledge and practical skills in various aspects of computing.