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.

Contact Me Download CV

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.

Learn about DevCrafters

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

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.

View Demo GitHub

⭐

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.

View Demo GitHub

⭐

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.