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Available · Remote · Nuevo León, MX

Edgar Humberto Carrillo Pech

Professional name · Edgar H. Carrillo

I connect systems that never talked to each other.

Senior Full-Stack Engineer and Technical Lead. 23 years making enterprise platforms, legacy systems and cloud services work as one — across retail, telecom, government and industry.

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Edgar Humberto Carrillo Pech (Edgar H. Carrillo) — Senior Full-Stack Engineer / Technical Lead
Monterrey · 2026
Role
Senior Full-Stack / Tech Lead
Based in
Nuevo León, MX · GMT-6
Mode
Remote · Full-time
Focus
Integrations · Event-driven
Response
< 24 h

23years

Building enterprise software in production

4

Industries: retail, telecom, government, IoT

3

Clouds in production: AWS, Azure, GCP

2003

First system of my own in production

Selected work

04 cases · 2013—2025
Workia / HCWork · 2021—2024

Fault-tolerant enterprise payroll

Mass payroll engine with document persistence on S3, real-time state synchronization over WebSockets and audit streaming on Apache Kafka. Includes a parametric incentive engine.

No manual reprocessingOperation
Replayable audit trailTraceability
KafkaAWS S3WebSocketsAngularNode.jsJava
RRHH · CSVbatchPortal webAngularPayroll engineidempotenteNode · JavaAWS S3recibosWebSocketestado liveAuditoríaconsumersevent bus · Kafkaat-least-once · replay desde offset

Medox — Marketplace, analytics and batch

Analytics engine with a rolling window and multi-country catalog ingestion (MX · ES · AR) with structural validation.

3 countries

Lumations — Parking and loyalty

Automated parking-meter billing backend and a loyalty ecosystem with a self-service back-office.

24/7

Vikkon — Industrial IoT telemetry

Real-time temperature and power telemetry, with asset provisioning and geographic traceability.

5 years in operation

Experience

Employment and contracts

Salaried roles

Responsibilities

  • Leading the integration of enterprise corporate platforms using MuleSoft and multi-cloud architectures (AWS, GCP, Azure).
  • Design and implementation of high-availability solutions and asynchronous backend processing, optimizing microservices and serverless flows.
  • Development of modern frontend architectures using advanced Angular, ensuring modularity, reactivity, and high performance.
  • Integration of AI-assisted engineering workflows (Claude Code, OpenAI APIs) for delivery optimization and static code analysis.

Achievements

  • Design of enterprise solutions focused on high-volume integrations and real-time transactional processing.
  • Optimization of performance and structural stability in critical frontend and backend applications.
  • Advanced automation of complex operational tasks through decoupled cloud services.
AngularMuleSoftAWSAzureNode.jsNestJSClaude CodeJava

Freelance contracts

Stack

Production, not tutorials
Frontend
Angular v6—v22, Signals, RxJS · TypeScript
Backend
Node.js, NestJS, Java · Spring Boot
Events
Apache Kafka, MuleSoft · event-driven
Cloud
AWS, Azure, GCP · Docker, K8s
Data
PostgreSQL, Oracle, MongoDB · Redis
AI
Claude Code, OpenAI APIs · MCP, RAG

Education

Selection
Degree
BSc in Computer Systems EngineeringInstituto Tecnológico de Mérida · 1999 — 2003
Anthropic
Claude 101 ↗Claude Code in Action ↗Agent Skills ↗Subagents ↗
Verifiable credentials · 2025 — 2026
Ongoing
+25 technical courses in architecture, Angular, NestJS, RxJS and AI automation.

Let us talk

Employment · Consulting
Fast track

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Available

Let us build something that scales.

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