David Sánchez

Senior Backend Engineer · Full-stack · Mobile · DevOps

México · Remote · GMT-6·Email (JS required)·(JS required)·dav.mx

Summary

Software engineer with 10+ years shipping production systems. End-to-end experience: backend (Laravel, Node.js, Spring Boot, Go, Rust), frontend (React, Vue, Svelte), mobile (React Native, Flutter), and Kubernetes infrastructure on AWS, GCP and Proxmox. Payment-gateway integrations (STP, Stripe, Conekta, OpenPay, Mattilda, OXXO) and CFDI 4.0 fiscal invoicing. Full product cycle: product, architecture, implementation, deployment and operations.

Technical skills

Backend:: Laravel, PHP, Node.js, NestJS, Spring Boot, Go, Rust
Frontend:: React, Vue, Svelte, JavaScript, TypeScript, HTML5, CSS3, Tailwind
Mobile:: React Native, Flutter, Dart
Infrastructure & DevOps:: Kubernetes, Docker, Proxmox, CI/CD, GitHub Actions, Nginx, Linux
Cloud:: AWS (EC2, S3, RDS, Lambda), Google Cloud Platform
Data:: PostgreSQL, MySQL, MariaDB, Redis
Domain & integrations:: CFDI 4.0, Nómina México, NOM-035, STP, Stripe, Conekta, OpenPay, Mattilda, OXXO/Femsa

Experience

Senior Backend Engineer — Elaniin

2025 – Present

Remote · Full-time · Primary role

Design and develop services and APIs for international clients.
Scalable architectures, third-party integrations and code review with the product team.
Collaboration with stakeholders to translate business requirements into technical components.

Technologies: Laravel, Node.js, AWS, PostgreSQL

Senior Full-stack Engineer — Universidad Eurohispanoamericana

2026 – Present

México (Remote · Freelance) · Freelance

Lead development of Eurocontrol: integrated platform unifying academic ERP, admissions CRM and iOS/Android mobile apps.
Responsible for backend, frontend, data architecture and Kubernetes deployment.
Payment-gateway integrations (STP, Stripe) for enrollment and tuition billing.

Technologies: Laravel, React, React Native, NestJS, Spring Boot, Kubernetes, PostgreSQL

Senior Full-stack Consultant — IUV Universidad

2026 – Present

México (Remote · Freelance) · Freelance · Consulting

Consulting role after six years as full-time employee.
Support tech team on architecture decisions and technical reviews.
Maintain SIGE and SAE CRM in production; knowledge transfer.

Technologies: Laravel, Vue, NestJS, Spring Boot, Kubernetes, Proxmox, MariaDB

Lead Engineer — Rhinus

2021 – Present

México (Remote · Freelance) · Freelance · Long-term

End-to-end design of HR and payroll ERP.
Digital employee records, NOM-035 compliance, payroll calculation and disbursement.
CFDI 4.0 invoicing, accounting reconciliation; integrations with STP, Stripe and OXXO/Femsa.
Responsible for product, backend, frontend, deployment and ongoing support.

Technologies: Laravel, React, PostgreSQL, AWS, CFDI 4.0

Senior Full-stack Engineer — IUV Universidad

2019 – 2025

México · Full-time · 6 years

Six years building and scaling SIGE (academic ERP) and SAE CRM (admissions).
Critical modules: academic records, enrollment, fiscal invoicing, payment gateways, migrations.
Integration of multiple gateways (STP, Stripe, Mattilda, Conekta, OpenPay, OXXO/Femsa).
Work from UI design through deployment and release management.

Technologies: Laravel, Vue, React, NestJS, Spring Boot, Kubernetes, Proxmox, MariaDB, PostgreSQL

Backend Engineer — Universidad Eurohispanoamericana

2015 – 2017

México · Full-time · First role

First formal position as backend engineer.
Development and maintenance of internal systems — academic management, administrative processes and integrations.
Linux server operations.

Technologies: Laravel, PHP, MySQL, Linux

Additional projects

Appbonados — Freelance

2022

Food-delivery SaaS for restaurants. Laravel backend, React admin, Flutter mobile app. Stripe integration for payments, catalog and real-time orders.

Technologies: Laravel, React, Flutter, Stripe

Caja Yanga — Freelance

2022

Mobile-app enhancement: branch-locator module with Google Maps, routing and filters. Built in Flutter.

Technologies: Flutter, Google Maps

EnCorto MX (propia) — Fundador

2025 – presente

Digital agency that guides companies and founders through digital transformation: social, advertising, software development, infrastructure, marketing and consulting.

Technologies: Dirección técnica, Arquitectura, Consultoría

Education

Bachelor's in Communication and Digital Media — IUV Universidad

2022 – 2025

México

Certifications

Flutter Developer — Platzi

Languages

Spanish — native
English — professional