Available for new roles · Remote

Martín Campos

Software Engineer · Backend & Full Stack

I design and operate payment systems that process 100M+ transactions a year. PHP/Laravel and AWS at the core; Vue and React where the product requires them.

Download Resume Get in touch LinkedIn GitHub

PHP
Laravel
Vue.js
React
Node.js
AWS
Docker
REST APIs
TDD

Based in: Mexico · UTC-6
Works: Remote, across time zones
Languages: English (B2) · Spanish (native)
Now at: Evertec · PlacetoPay

100M+

annual transactions processed by the platform I engineer

years of production backend engineering in Fintech

+70%

traffic growth on a public-sector portal I redesigned

AWS

Certified Cloud Practitioner

What I bring

I keep high-volume systems reliable

Over 5 years building and maintaining backend services for platforms that cannot afford downtime.

Reliability at scale
Core services for a payment gateway processing 100M+ transactions a year, deployed with Docker and AWS and tuned for high-traffic events.
Quality as a habit
Test-driven development and rigorous code review that cut technical debt and critical production bugs.
APIs and people
Secure, documented REST APIs for Mobile teams and financial partners, plus an internal PHP Bootcamp I designed and led.

Experience

Professional experience

Production systems, from public-sector platforms to a payment gateway serving Latin America.

May 2021 – Present · Remote

Software Engineer · Evertec · PlacetoPay

Backend engineer for PlacetoPay, a leading Fintech payment gateway in LATAM. I architect and maintain the critical backend services that keep financial operations highly available.

High-scale engineering
Core backend solutions processing over 100 million annual transactions.
Quality & TDD
Reduced technical debt and critical production bugs by championing TDD and rigorous code review.
Cloud & infrastructure
Optimized deployment workflows with Docker and AWS (CI/CD), improving scalability during high-traffic events.
Technical leadership
Designed and led the internal PHP Bootcamp, training junior developers in Clean Code and SOLID.
API strategy
Designed secure, documented RESTful APIs for Mobile teams and third-party financial institutions.
Collaboration
Work in Agile/Scrum with QA, Product and Mobile teams to deliver and maintain high-availability backend services.

Jan 2020 – Sep 2020 · Hybrid

Full Stack PHP Developer (Internship) · Public sector · Aguascalientes

Digital transformation of public-sector services.

Web performance
Revamped the official public portal, achieving a 70% increase in web traffic through UI/UX and SEO improvements.
Internal tools
Built a custom Intranet/CMS from scratch with Laravel and Vue.js, streamlining content management for internal staff.

Jan 2019 – Aug 2019 · On-site

Web Developer (Social service) · Instituto Tecnológico de Aguascalientes

Led a student team that built a digital product for an innovation project.

Leadership
Managed the full lifecycle from requirement gathering to the deployment of the MVP.
Cloud architecture
Implemented a serverless backend on Firebase with real-time data synchronization.

Skills

Technical skills

The technologies I use in production, and what I have built with them in personal projects.

Backend

PHP 8LaravelNode.jsNestJSPythonFastAPI

APIs & Data

REST APIsGraphQLOpenAPI/SwaggerMySQLRedisMongoDBPostman

Cloud & DevOps

AWSDockerCI/CDLinuxGitBitbucket

Testing & Practices

TDDPHPUnitPHPStanXdebugAgile/ScrumCode ReviewClean CodeSOLID

Frontend

JavaScriptTypeScriptVue.jsReactTailwind CSS

AI-assisted development

GitHub CopilotClaude

Selected work

Featured projects

Open-source contributions and personal projects, built with automated tests and documentation.

Open-source contributor

PlacetoPay Docs

Public API documentation for a payments platform serving Latin America. Contributed endpoint documentation, request examples, changelogs and tooling fixes through 30+ merged pull requests.

API docs
MDX
Open source
Payments

PHP Backend Developer

Laravel API Quotes

Progressive Laravel project with authentication, Redis queues, task scheduling, and GraphQL. Focused on code quality with PHPStan, Rector, and PHP Insights, achieving 95% test coverage.

Laravel
Redis
GraphQL
PHPStan
95% coverage

Full Stack Developer

This portfolio

The source of this site: Nuxt 4, Nuxt UI and Tailwind CSS, with SEO metadata, structured data and a responsive light and dark design.

Nuxt 4
Vue
Tailwind CSS
SEO

Credentials

Certifications

Verifiable credentials backing my experience.

AWS Cloud Practitioner English B2 Laravel PHP Docker Git MySQL

Let's build something that scales.

Backend and full stack engineering for Fintech, payments and SaaS teams. Share the role and the problem you need solved.

Download Resume Get in touch LinkedIn