Arturo Esteva Castillo — Cloud & Systems Engineer

01 — About

Building the infrastructure
the internet runs on.

Systems Engineer with experience in cloud infrastructure, multi-cloud environments, networking, automation, CI/CD, and production operations, with a strong telecommunications background.

Skilled in designing and supporting scalable, secure, and highly available cloud and hybrid infrastructures across AWS, Azure, and Google Cloud. Experienced with Infrastructure as Code, scripting, Kubernetes, observability, monitoring, incident response, and network connectivity.

Focused on reliability, performance optimization, and operational excellence. Currently pursuing a Master's degree in Data Science to strengthen data-driven decision-making in modern technology environments.

AWS Certified Terraform Certified SRE Mindset IaC First Multi-Cloud Production-Grade

02 — Stats

0 +

Years of experience

0

Companies

0

Active certifications

0 .9%

Service availability achieved

03 — Skills

Core competencies

☁

Cloud Architecture & SRE

AWS, Azure, GCP — Multi-Cloud
VPC, EC2, ALB/NLB, Auto Scaling
High availability & disaster recovery
SLI / SLO / SLA
Incident management & RCA

⚙

Infrastructure as Code

Terraform & CloudFormation
Python & Bash automation
CI/CD — GitHub Actions, Jenkins
Scalable, repeatable deployments

◈

Containers & Orchestration

Kubernetes & OpenShift
Docker & Rancher
Microservices architecture
~24k pods managed in production

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Observability & Monitoring

Prometheus & Grafana
Datadog & CloudWatch
Centralized logging & tracing
Metrics, alerting & dashboards

⬡

Networking & Security

AWS VPC, subnets, VPN, Transit Gateway
Route 53, CloudFront, DNS
IAM policies, NACLs, Zero Trust
OSI / TCP-IP, LAN/WAN, MPLS

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Leadership & Soft Skills

Cross-functional collaboration
Technical mentorship & training
ServiceNow & Jira operations
High-pressure production environments

04 — Certifications

Credentials

TF

05 — Experience

Where I've worked

DISH Wireless — EchoStar

Cloud Engineer II

Denver, Colorado, USA · Apr 2023 – Dec 2025

Operated and optimized AWS cloud services and Kubernetes clusters (~24k pods), improving system reliability by 30%, reducing incident response time by 40%, and achieving 99.9% service availability. Built monitoring platforms for 5G infrastructure using Prometheus and Grafana, managed CI/CD pipelines with Jenkins, and led incident response and RCA processes.

AT&T USA

Senior Wireless Network Engineer

Walnut Creek, California, USA · Dec 2018 – Feb 2023

Testing, validation, and troubleshooting of 4G LTE and 5G small cell services. Developed automation scripts in Python and Bash, managed Kubernetes and OpenShift clusters on Rocky Linux, and performed deep network analysis across LAN/WAN environments.

Ericsson México

Deployment Manager

Azcapotzalco, CDMX · Feb 2014 – Nov 2018

Deployment and integration of 3G/4G sites across the US and North America. RAN KPI analysis, call-trace troubleshooting, and network performance optimization across GSM, WCDMA, and LTE technologies.

06 — Projects