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Senior Software Developer

I build full stack applications that ship reliably and scale cleanly.

From Next.js and TypeScript frontends to Node APIs and the integrations around them, I take products from idea to a fully working application, in enterprise e-commerce and for independent clients.

  • 8+ yrs

    Collaboratively building for the web and mobile ecosystems

  • End to end

    From UI to APIs and integrations

  • Worldwide

    Available across time zones

Portrait of Edwin BarrientosOpen to new projects

Currently

Senior Software Developer at TELUS Digital

Shipping features and releases across a 10+ application e-commerce ecosystem of MFEs and APIs, while building full stack projects for independent clients.

I live a culture of continuous self-development, always learning and expanding my knowledge to bring better ideas to every team.

  • React
  • Next.js
  • TypeScript
  • Node

Product-minded engineering

I build with a designer's eye and a maintainer's discipline, shipping features that feel intentional and fast.

Scalable architecture

From greenfield to refactor, I create systems that stay legible as teams and traffic grow.

Collaborative delivery

I partner with product, design, and data to keep scope crisp and outcomes measurable.

Selected Work

Projects with real impact

A mix of product builds, platform upgrades, and UX tooling where I owned the engineering execution.

Casa El Tabernáculo preview

Lodging and hospitality business landing page with API, email automation system when contact form is filled, friendly content management through Headless CMS, and map visualization tool.

  • Cloudflare
  • Vercel
  • Next.js
  • TypeScript
  • Express.js
  • Google Analytics
  • Google Maps Embedding
  • Mailersend
  • Contentful
Servicios Jurídicos Integrados preview

Law firm platform in Guatemala integrating SEO and accessibility best practices, through SSG, dynamic slug generation and ISR for cache validation, levaraging a headless CMS for friendly content and blog management.

  • Vercel
  • Next.js
  • TypeScript
  • Express.js
  • Google Analytics
  • Google Maps Embedding
  • Mailersend
  • Contentful
Arrevi preview

Real estate portal for all, buyers, tenants and brokers, integrating email automation through contact forms, friendly content management through Headless CMS, CRM for users, properties and agencies management, data and assets management through cloud services and databases, dynamic maps set-up, etc.

  • Cloudflare
  • Vercel
  • Next.js
  • TypeScript
  • Express.js
  • Node
  • Google Analytics
  • Leaflet Map Tool
  • Mailersend
  • Contentful

Toolbox & Skills

Technical and leadership focus

I focus on clean interfaces, resilient infrastructure, and data-aware experiences.

Programming Languages:
Javascript, Typescript, PHP, Python
Frontend:
React, Next.js, Redux, React Nattive, Tailwind, Motion, Storybook
Backend:
Node, Express, Fastify, REST
Platform:
Vercel, GCP, AWS, Cloudflare, GitHub, CI/CD, Canary Deployment, Monitoring
Workflow:
Kanban, SCRUM, Docker, Kubernetes, Figma, Notion, Pairing, Mentorship, Project Planning
Languages:
Spanish, English, German (Intermediate)
Other tools:
HTML5, CSS, MySQL, MongoDB, PostreSQL, Git, GitHub, GraphQL, Jest, Cypress, Dynatrace, MailerSend, SendGrid, etc...

Experience

Teams I have shipped with

  1. Senior Software Developer

    2021 — Present

    Telus Digital - Digital Solutions

    Exercising a Tech Lead role throughout multiple important releases in a multiple application (+10 Applications, MFEs and APIs) e-commerce ecosystem.

  2. Frontend Developer

    2020 — 2021

    P-LAO

    Built interactive design systems used across different induestries and product / services lines, while also seamlessly integrating backend systems.

  3. Freelance Software Developer

    2018 — Present

    Independent Contractor

    Full stack developer delivering complete, production-ready applications for small businesses, from the Next.js and TypeScript frontend to Express.js APIs and the integrations around them.

Let’s build

Tell me about the product you want to ship next.

Open to freelance collaborations, product sprints, and long-term roles. Based in the Guatemala, available worldwide.