About
Building reliable systems,
and the practices that keep them that way.
David Elí Martínez García
Software Engineer
Software engineer with 8+ years designing, developing, and operating scalable, highly available systems. I care about clear architecture, pragmatic trade-offs, and shipping software that holds up in production — not just in demos.
At Rankmi I've focused on performance and platform work: making queries dramatically faster, raising operational stability through async processing, and leading a notification microservice the organization standardized on. Earlier at Asymm I owned features end-to-end and lifted quality through higher coverage and less technical debt. Lately I've also been deepening AI-assisted development, agents, and MCP to accelerate engineering workflows.
Technical expertise
Backend & Architecture
Ruby on Rails
Node.js
NestJS
REST APIs
GraphQL
Microservices
Event-Driven Architecture
Databases
PostgreSQL
MongoDB
Redis
Data Modeling
Query Optimization
Front-End
React
TypeScript
JavaScript (ES6+)
Redux
React Native
Cloud & DevOps
AWS
GCP
Docker
Kubernetes
CI/CD
Performance & Observability
Async Processing
Message Queues
Caching
New Relic
Datadog
Sentry
AI Engineering
AI-Assisted Development
AI Agents
MCP
Agentic Workflows
Engineering practices
System Design
SOLID
Design Patterns
TDD
Technical Leadership