Available for new projects

Hi, I'm Sergio Barreras

Full Stack Developer

Specialized in building scalable web applications with Angular, NestJS, and TypeScript. Passionate about clean architecture, user experience, and automation.

Sergio Barreras

5+ years exp.

About Me

I'm a Full Stack Developer with over 5 years of experience building scalable web applications. My focus is on creating efficient, maintainable, and user-centered solutions.

I specialize in modern architectures using Angular, NestJS, and TypeScript, always applying SOLID principles and Clean Architecture to ensure quality code.

Co-founder of DevCrafters, where we help companies create web, mobile, and cloud solutions that transform their business processes.

5+

Years of experience

15+

Completed projects

30+

Certifications

100%

Commitment

Experience

Angular Frontend Developer

Capgemini

May 2026 - Present

Aguascalientes, Ags.

Full Stack Developer

Creative Software International

Jul 2025 - Oct 2025

Remote from Aguascalientes, Ags.

  • Designed and improved database schemas for granular permissions
  • Implemented advanced rules for delegated workflows
  • Resolved Work Orders deadlocks by refactoring transactional logic
  • Automated email segmentation and fixed CRUD inconsistencies

Full Stack Developer

Taruks Soluciones S.A. de C.V.

Dec 2022 - Aug 2024

Ciudad Obregón, Sonora

  • Developed Angular applications with Clean Architecture principles
  • Integrated REST APIs and implemented reactive forms with RxJS
  • Participated in Scrum ceremonies and code reviews
  • Delivered responsive interfaces aligned with UX best practices

Projects

BotBite
BotBite Logo

BotBite

AI Waiter Assistant for Restaurants

SaaS platform that allows customers to order food via WhatsApp using conversational AI. Multi-restaurant architecture with dynamic QR codes.

Tech Stack
Diocese of Cd. Obregón
Diocese of Cd. Obregón Logo

Diocese of Cd. Obregón

Digital infrastructure for ecclesiastical administration

Multi-entity management platform with role-based access control, modular architecture, adaptive forms, and integrated public-facing interface.

Tech Stack
Magnolias Bakery
Magnolias Bakery Logo

Magnolias Bakery

Multi-branch management for custom order workflows

Administrative and public platform for pastry businesses with role-based access, structured multi-step order flow, dynamic product configuration, and landing synchronization with internal catalogs.

Tech Stack
La Focacha Restaurant
La Focacha Restaurant Logo

La Focacha Restaurant

Multi-branch management for reservations

Administrative platform for restaurant businesses with role-based access, structured reservation flow

Tech Stack

Tech Stack

Technologies and tools I use to build robust and scalable solutions

💡

Languages

Languages
💻

Frontend

Frontend
📱

Mobile

Mobile
🧠

Backend & APIs

Backend & APIs
🔄

Background Jobs & Messaging

Background Jobs & Messaging
🗄️

Databases

Databases
⚙️

DevOps & Cloud

DevOps & Cloud
☁️

Cloud Platforms & BaaS

 Cloud Platforms & BaaS
🧪

Testing & Tools

Testing & Tools
📦

Package & State Management

Package & State Management
🛠️

Others

Others
DevCrafters Logo

Co-founder of DevCrafters

Modern solutions in web, mobile and cloud to boost your business

Visit DevCrafters

Let's Work Together

Have a project in mind? I'd love to hear from you.