Carlos Millán Chico

Platform and DevOps Engineer with 14+ years in tech — last 5 years operating distributed AWS infrastructure at scale (40+ accounts, 3 EKS clusters, 100+ microservices) in fintech, insurtech, and regulated financial environments. Strong background in IaC (Terraform), GitOps (ArgoCD), CI/CD, and observability (Datadog, OpenTelemetry). 10 years as a software developer before infrastructure — strongest across the full SDLC, from architecture and code to delivery and production measurement. An AI-augmented engineer: integrates AI tooling (Claude Code, Cursor, n8n) into daily workflows to accelerate IaC generation, troubleshooting, and automation.

Platform Engineer at Bitso (2025-04 – Present)

Latam's largest crypto exchange · Platform–Infra squad (8 engineers) · 8+ dev teams · 40+ AWS accounts

• Operated and supported workloads on 3 production EKS clusters (Karpenter, KEDA, HA) serving 100+ microservices at thousands of req/min — troubleshooting, configuration changes, and deployments via Terraform, ArgoCD, and Helm.
• Automated legacy on-prem operations (VMware/RHEL/WebLogic) with AWX/Ansible, cutting manual tasks from ~1 hr to minutes (>90%); contributed to the architecture and planning to migrate this stack to EKS on AWS México region — accelerated with Claude Code.
• Resolved PostgreSQL lock contention from 5–10 blocks/min to <3 (reaching 0 at peak); migrated 10+ Splunk indexes on-prem → cloud (>30 GB/day).
• Migrated 2 high-demand workloads + 2 databases to new servers within a 2-hour maintenance window

DevOps Engineer at SoftServe (2024-07 – 2025-04)

Global IT consultancy · Healthcare platform for US client · HIPAA-regulated environment

• Designed 4–5 CI/CD pipelines (dev / stg / prod) delivering the first production release of a HIPAA-regulated healthcare platform.
• Provisioned AWS infrastructure with Terraform across 3 environments — including EventBridge rules and Step Functions state machines; first engagement fully conducted in English.

Senior DevOps Engineer at GBM (Grupo Bursátil Mexicano) (2022-09 – 2024-06)

Mexican brokerage · 7-person DevOps/Cloud team · 10+ dev teams · regulated financial environment

• Architected AWS multi-account organization from scratch (0 → ~40 accounts) using Control Tower, with SCPs and permission boundaries for governance — still operational 2+ years later.
• Reached ~80–85% IaC coverage with CloudFormation across 10+ teams; resolved 10–30 Security Hub findings and enforced SSM Patch Manager for 20–50 EC2 instances.

Senior DevOps Engineer at Guros (2021-06 – 2022-06)

Mexican insurtech · Founding 3-person DevOps team · First DevOps role post software-dev career

• Cut CI/CD pipeline time by ~83% (30 min → 5 min) and AWS monthly spend by ~10% via Spot instances and cleanup.
• Reduced incident detection from ~1 hr to ~20 min by instrumenting 5–10 services with Sentry + X-Ray.

Tech Lead / Senior.NET Developer at Best Day Travel Group (2018-07 – 2021-05)

Mexican OTA · Promoted to Tech Lead · Led 4-person payments domain team

• Led decoupling of payments service monolith → microservices on GCP (VB →.NET Core); thousands of transactions/day.
• Team of 4 engineers recognized company-wide for Kanban adoption; containerized services with Docker, Helm on GKE, CI/CD on Azure DevOps..NET Developer at Gestionix (2014-06 – 2018-01)

SaaS ERP startup; end-to-end ownership of POS module (thousands of users)..NET Developer at TV Azteca (2013-08 – 2014-06)

Automated invoice pipeline (→ SAP), reducing processing time by 90%.

B.S. in Computer Systems Engineering – Instituto Tecnológico de Zacatepec, Morelos, México (2006 – 2010)