Udemy
Terraform: De principiante a certificado 2025
May 2025
UC-7e862626-3fb5-47b7-8934-3a3852c91ba3
TerraformIaCDevOps
Scalable Backend Engineering
I help teams build reliable software through scalable backend engineering.
Designing APIs, distributed systems and cloud-native solutions built to perform, scale and last.
Engineering Focus
Capabilities that apply across products, teams and industries.
API Design
Clean, secure and scalable APIs designed for production.
Distributed Systems
Reliable backend services working across multiple components.
Authentication
Secure identity, authorization and session-based access.
Cloud Services
Cloud-ready applications designed for modern infrastructure.
Integrations
Payment providers, notifications and third-party APIs.
Performance
Optimized queries, services and backend workflows.
Built with technologies I trust
- NestJS
- TypeScript
- GraphQL
- PostgreSQL
- Redis
- AWS
- Docker
- Stripe
- Next.js
- Node
Featured Projects
Backend systems shipped end to end.
A selection of production APIs and services, from payment processing to realtime delivery.
POST/v1/billing/invoices
{uuid: '6f1c2a9e-4b7d-4c1e-9a52-0d8e3b7f5a10',status: 'STAMPED',total: 1160,emailed: true}CFDI 4.0 E-Invoicing SaaS
efactura-lo
A multi-issuer SaaS that stamps CFDI 4.0 invoices through a PAC, handles series and folios, PDF/XML generation, cancellations and email delivery, sells prepaid stamps with Stripe and automatically invoices every purchase. Runs on AWS with Terraform.
CFDI 4.0
SAT standard
52k
SAT product keys
1,003
Automated tests
NestJSNext.jsPostgreSQLStripeAWS
GET/api/v1/notifications/status
{queued: 42,delivered: 11980,channel: 'push',healthy: true}Realtime Delivery Service
Pulse Notifications
A distributed notification service fanning out email, push and SMS through Redis-backed queues, with retry policies tuned per channel.
12k
Messages/min
99.4%
Delivery rate
1.2
Avg retry
NestJSRedisDockerAWS
GET/api/v1/ledger/reconciliation
{runId: 'run_8841',mismatches: 3,resolved: true}stack.ts
1const stack = {2 backend: [3 'NestJS',4 'TypeScript',5 'Laravel',6 'GraphQL',7 'REST APIs',8 ],9};Tech Stack
Tools I reach for to ship reliable products.
Select a category to see how each piece fits into the stack.
NestJS
Structured, testable services with modules, guards and pipes.
TypeScript
Type-safe code across the entire request lifecycle.
Laravel
Fast API and web delivery with Eloquent, queues and migrations.
GraphQL
Schema-first APIs shaped around what each client actually needs.
Experience
Where I've built and shipped.
A track record spanning systems infrastructure, IT leadership and modern backend engineering.
Oct 2022 — Present
PresentBackend Developer · King Tide
Building and maintaining backend platforms and services for production digital products, across architecture, APIs and infrastructure.
- Designed and developed scalable APIs using NestJS, TypeScript, GraphQL and REST.
- Implemented complex payment flows, refunds, wallets and payouts through Stripe.
- Built real-time systems using Redis, BullMQ, WebSockets and Firebase notifications.
- Designed and maintained PostgreSQL/TypeORM architecture, including entities, relations, migrations and query optimization.
- Developed backend features for queues, chat, credit-based payments, notifications, deep links and third-party integrations.
- Worked with infrastructure and deployments on AWS, Docker and Railway, including CI/CD and production troubleshooting.
NestJSTypeScriptPostgreSQLTypeORMGraphQLRedisBullMQStripeFirebaseAWSDocker
Courses & Certifications
Courses and certifications that back the stack.
Ongoing learning across cloud infrastructure, backend frameworks and system design.
Contact
Let's Build Something Great
Have an API to design, a system to scale, or an integration to ship? Tell me about it — I read every message myself.
efren@spyrocode.techAvailable for new projects