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Summary

Expertise

Project Highlights

Education

Agency

CS

English:

Advanced

Cesar S.

vetted by Youteam

Vetted by YouTeam

Mexico

UTC -06:00

America/Cancun

English:

Advanced

Software Engineer with over 10 years of experience

Software Engineer with over 10 years of experience in web development, specializing in building scalable, high-performance applications. Expertise includes React.js, Next.js, Nest.js, and backend development with Python, Express.js, Node.js, and Twilio. Proficient in React Native for hybrid mobile development and experience in integrating payment systems like Stripe. Proven track record as a Tech Lead, managing scrum teams and translating complex client requirements into successful engineering solutions. Strong background in cloud platforms, including AWS, GCP, and Azure, and hands-on experience with SMS and RCS projects.

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Expertise

Years of commercial development experience

10 years of experience

Core technologies

React.js 5 years
Node.js 8 years
Express.js 7 years
Nest.js 4 years
AWS 7 years
Next.js 5 years

Other technologies

Azure
JavaScript
MongoDB
MySQL
PostgreSQL
Python
Stripe
Twilio
TypeScript
WebSockets
Docker
Redux
GraphQL
Google Cloud Platform
AWS Lambda
Firestore
Firebase
REST Api

Project Highlights

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React Developer

Web applications projects

Mar `22 - Aug `24

2 years

ARTERIA

Web applications projects.

Responsibilities & achievements

• Enhanced web applications to automate document processing. • Refactored codebase and added new features, adhering to best practices. • Developed API endpoints using Node.js for handling document automation processes. • Improved the performance of Node.js applications for high concurrency. • Enhanced and maintained React.js components for document processing automation tools. • Refactored React.js code to improve performance and code maintainability. • Integrated Nest.js microservices for backend business logic. • Utilized Nest.js to structure scalable solutions for document processing. • Built RESTful APIs using Express.js to automate document handling workflows. • Managed error-handling middleware in Express.js to improve API reliability. • Deployed document automation solutions on AWS for scalability. • Leveraged AWS services like S3 and Lambda for storing and processing documents.

AWS
Express.js
Node.js
React.js
Twilio
TypeScript
Redux
Nest.js
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Software Architect

General Motors OnStar project

Nov `20 - Present

4 years

ACCENTURE

GM OnStar project, powering electric vehicles and providing real-time data.

Responsibilities & achievements

• Built and maintained features for GM OnStar, powering electric vehicles and providing real-time data with WebSockets & Firestore. • Led development of Next.js headless applications, deploying via AWS & Vercel. • Developed AI-powered health content suggestions for Pfizer using AWS Python Powertools & React. • Developed backend services using Node.js to handle data ingestion from electric vehicle sensors. • Integrated Twilio for SMS functionality, developing communication flows for notifications and alerts. • Managed CRM data pipelines, optimizing customer interaction processes and integrating CRM solutions with backend services. • Automated customer relationship processes by enhancing CRM integrations with backend services built with Node.js and Express.js. • Led efforts to optimize SMS delivery and CRM data synchronization using AWS services, ensuring high availability and performance for real-time communication features. • Built React.js components for monitoring electric vehicle status and usage. • Created microservices architecture using Nest.js to handle different modules of GM OnStar. • Managed Nest.js services for better modularity and scalability. • Designed RESTful services using Express.js to interface with AWS backend. • Managed deployments on AWS and optimized performance using AWS services like Lambda, S3, and API Gateway. • Integrated AWS Python Powertools to handle large-scale data processing.

AWS
CRM
Express.js
Node.js
Python
React.js
Twilio
WebSockets
Firestore
Next.js
Nest.js
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Software Engineer

Ford HMI applications

Feb `17 - Nov `20

4 years

ALTRAN

Ford HMI applications.

Responsibilities & achievements

• Tech Lead for Ford HMI applications. Led onboarding and mentoring. Integrated real-time data with Socket.IO. • Developed UI for IBM Storage Mainframes. • Developed backend services with Node.js to manage real-time data integration for Ford HMI applications. • Integrated real-time data processing with Socket.IO and Node.js. • Built user interfaces for Ford HMI using React.js. • Optimized rendering performance in React.js for Ford applications. • Implemented Nest.js services to decouple business logic in real-time applications. • Managed modular Nest.js architecture to improve the maintainability of backend services. • Developed RESTful APIs using Express.js to connect front-end applications with real-time backend services. • Implemented WebSocket communication through Express.js for real-time updates. • Deployed backend services on AWS to ensure scalability and fault tolerance. • Utilized AWS Lambda for real-time data ingestion and processing.

AWS
Express.js
Node.js
Python
React.js
Socket.IO
Nest.js
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Software Engineer

SaaS booking engine for major airlines and travel agencies

Jan `15 - Feb `17

2 years

PRICE TRAVEL

SaaS booking engine for major airlines and travel agencies.

Responsibilities & achievements

• Developed and maintained a SaaS booking engine for major airlines and travel agencies. • Built and maintained a Node.js-based SaaS booking engine. • Created scalable microservices using Node.js for processing bookings and managing user accounts. • Deployed booking services on AWS to ensure high availability. • Utilized AWS RDS for MySQL databases and S3 for storing travel-related data. • Designed and implemented React.js components for the user interface of the booking engine. • Optimized React.js components to enhance user experience on multiple devices. • Developed backend services using Nest.js to handle complex business logic for travel bookings. • Utilized Nest.js to modularize the backend and improve performance. • Implemented RESTful APIs using Express.js to integrate third-party travel services. • Managed session handling and authentication in Express.js.

Express.js
MongoDB
MySQL
Node.js
PostgreSQL
Python
React.js
Twilio
Nest.js
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Web Developer

Custom apps for clients, including Facebook and Google API integrations

Nov `11 - Jan `15

3 years

PUNK

Custom apps for clients, including Facebook and Google API integrations.

Responsibilities & achievements

• Built custom apps for clients, including Facebook and Google API integrations. • Developed dynamic web applications using React.js for integrating with Facebook and Google APIs. • Optimized front-end performance with React.js for real-time social media interactions. • Created Node.js backend services for custom Facebook and Google API integrations. • Built Node.js microservices to handle large-scale user interactions through social media platforms. • Created Express.js-based middleware to handle OAuth integrations for Facebook and Google. • Built Express.js services for custom social media data management. • Built Nest.js services to manage API integrations with external social platforms. • Implemented scalable business logic using Nest.js to streamline data flow. • Deployed social media applications on AWS for scalability and uptime. • Utilized AWS Lambda to handle API calls to Facebook and Google, ensuring efficient processing.

AWS
Express.js
Facebook API
Google API
Node.js
Python
React.js
Nest.js

Education

Higher education in Computer Science

Agency

Development agency #31

400+

GMT-11

Remote

Want to hire this engineer?

Check if Cesar is available