Sergio Barrera Email & Phone Number

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UI Software Engineer @ (February 2026 - Present)
Full Stack Software Engineer @ West AI Engineering (February 2026 - May 2026)
Software Engineer @ (February 2025 - February 2026)
Full Stack Engineer @ Concord AI Tech Hub (February 2024 - March 2025)
Full Stack Developer @ (October 2021 - February 2024)
Software Developer Bootcamp Teaching Assistance @ (November 2017 - February 2023)
Web Development CEO @ SDBWEBS (February 2010 - November 2021)
Full Stack Developer @ Freelance, self-employed (June 2017 - September 2021)
Full Stack Engineer @ (August 2020 - October 2020)
Site Tech @ MDUSD (September 2015 - August 2020)
Technology Consultant @ (January 2002 - October 2010)
Tech Support Engineer @ Microtrol Group (February 1999 - July 2001)
IT Tech and Network Support @ STAC @ CITIBANK (May 1996 - January 1999)

KodeKloud
AWS (DevOps certification)
2025-2026
Educative 2023-2024
Udacity
Full Stack Web Developer Nanodregree (, Server side, data driven web apps, Python back end, supports any front end)
2019-2020
Free Code Camp
Full Stack Web Development Certification (Computer Software Engineering)
2015-2016
University of Illinois Urbana-Champaign
Unix Administrator - Web Developer (PHP Javascript Mysql CSS HTML Ruby on Rails SQL)
2009-2012
San José State University
Advanced American English (English conversational and Grammar)
2001-2002
University of Buenos Aires
Radiocomunicacions (Telecommunications)
1994-1995
Universidad Tecnológica Nacional
BS in Electronics (Computer Science)
1988-1995
Universidad Technologica National
Ingeniero en Electronica (Electronica)
1987-1995
San Jose K12
High School (Mathematics and Language)
1980-1984

API Development
Amazon Bedrock
Amazon EC2
Amazon Web Services (AWS)
Amplify
Apollo GraphQL
Argocd
Artificial Intelligence (AI)
Bootstrap
Chrome Debug Tools
Cloud Development
Code Coverage
Communication
Confluence
Constructive Feedback
Data Storage
Database Administration
Debugging
Designless workflows
Digital Ocean Ubuntu Linux nginx devops
Django
Django REST Framework
Docker
Documentation
Early-Stage Startups
FastAPI
Flask
Full-Stack Development
Git
Github
Gitlab
GraphQL
Groovy
H2
HTML5
IntelliJ IDEA
Java
JavaScript
Jenkins
Jira
Leadership
Linux
MVP application design
Material-UI
Microservices
Mobile Applications
MongoDB
MySQL
NestJS
Next.js
NoSQL
Node.js
Object-Oriented Programming (OOP)
Open Source
PostgreSQL
Prettier, Axios, mui flexbox layouts, material react table and functional decomposition
Python
REST APIs
React Hooks
React Native
React-Native
React.js
ReactJS
Redux
Redux.js
Restful API with express.js
Retrieval-Augmented Generation (RAG)
Ruby on Rails
SQLAlchemy
SSL lets encrypt Server certificates
Semantic UI
Server Side
Server Side Programming
Shell Scripting
Software Design
Software Development
Software Development Life Cycle (SDLC)
Sonarqube
Spring Boot
Spring Cloud
Spring Data
Spring Security
SwiftUI
Tailwind css
Tanstack React Query
Test Driven Development
Thymeleaf
Timelines
TypeScript
Unit Testing
User Requirements
Web Content Accessibility Guidelines (WCAG)
ag-grid-react
assistant instructor
iOS Development
monorepo environments

Sergio Barrera, based in Concord, CA, US, is currently a UI Software Engineer at Systalex Corp. Sergio Barrera brings experience from previous roles at West AI Engineering, Clarity, Concord AI Tech Hub and ERP International. Sergio Barrera holds a 2025 - 2026 AWS in DevOps certification @ KodeKloud. With a robust skill set that includes API Development, Amazon Bedrock, Amazon EC2, Amazon Web Services (AWS), Amplify and more. Sergio Barrera has 2 emails and 1 mobile phone numbers on RocketReach.