GP
gaelperez.mx
Get a Quote!

Senior Backend Engineer
available for remote contracts.

AWS · Node.js · Python · Microservices & Legacy Migration

6+ years building and migrating production backend systems. Most recently at IBM: Lambda migrations, CI/CD improvements, and React/TypeScript modernization at enterprise scale.
Based in Mexico City (GMT-6), C1 English. Available immediately for full-time or part-time remote contracts with US and EU companies.

📅 Book a discovery call →Portfolio →Blog →

Currently available · GMT-6 · C1 English · Payoneer & Deel ready

Hi, I'm Gael.

Senior Backend Engineer based in Mexico City with 6+ years building production systems — from early-stage startups to IBM-scale enterprises. I specialize in AWS cloud-native architecture and migrating legacy systems to microservices.

At IBM, I led the migration of Java legacy modules to AWS Lambda — 30% lower maintenance costs, 50% faster CI/CD. At Gendra, I built critical auth and async messaging components for an Oracle-to-AWS migration using Lambda, SQS, and SES.

I work in your timezone (GMT-6 overlaps fully with EST and PST), in English, and I'm available to start immediately. Contracts via Deel or Payoneer — no friction on either side.

📅 Book a discovery call →View my background →

How I can help your team

From a technical audit to a full-time engagement — I adapt to what your project needs.

Discovery Call

Free · 30 min

Video call · No commitment

  • ✓I understand your technical problem or project
  • ✓We assess if there's a strong technical fit
  • ✓I propose a concrete engagement model
  • ✓You leave with clarity, regardless of what we decide next

The right starting point if you want to see how I think before committing to anything.

Book a call →

Remote Contract

$60 USD/hr

Full-time or part-time · Remote

  • ✓Dedicated backend and cloud engineering
  • ✓Node.js, Python, AWS Lambda, SQS, SES, API Gateway
  • ✓Legacy Java/Oracle → AWS cloud-native migrations
  • ✓CI/CD, Docker, TypeScript, PostgreSQL
  • ✓GMT-6 timezone — full overlap with EST and PST
  • ✓Contract via Deel or Payoneer — zero paperwork friction

For teams that need a senior backend engineer now — without the overhead of a full-time hire.

Let's talk →

Cloud Architecture Audit

From $500 USD

One-time · 1–2 weeks

  • ✓Full review of your current AWS infrastructure
  • ✓Identify bottlenecks, cost leaks, and reliability risks
  • ✓Concrete written recommendations with priority order
  • ✓Migration or optimization roadmap
  • ✓1-hour debrief call included

If you want an outside expert to pressure-test your infrastructure before scaling — or before something breaks.

Request audit →

How do we work together?


1. Discovery call →

30 minutes. I understand your technical problem, your stack, and your timeline. You get a straight answer on whether I'm the right fit.

2. Scope and engagement model →

We agree on scope, hours, and rate — full-time, part-time, or project-based. Contract via Deel or direct. No surprises.

3. I integrate with your team →

I work in your timezone, in your tools, with your stack. Regular check-ins and full transparency on what's getting done.

4. Delivery with documentation →

Every piece of work is documented and handed over cleanly. Your team can pick it up and evolve it independently.

Training and certifications:


CENEVAL Award for Excellence in Academic Performance EGEL

CENEVAL Award for Excellence in Academic Performance EGEL

Awarded: 23/11/2025

AWS Certified Cloud Practitioner

AWS Certified Cloud Practitioner

Awarded: 18/09/2023

Advanced Artificial Intelligence for Data Science

Advanced Artificial Intelligence for Data Science

Awarded: 07/04/2025

Need a senior backend engineer?

Get my technical profile: stack, key metrics from IBM and Gendra, rate, and availability — one page, no filler.

Let's work together

Have a backend or cloud problem? A migration coming up? Or just want to see if I'm a good fit for your team? Book a 30-minute call — no commitment, just a conversation.

Book a discovery callingeniero@gaelperez.mx
Message me on WhatsApp