Architecture & migration
Independent senior review and hands-on delivery across AWS, GCP, and Azure.
Cloud / DevOps / SRE
Senior cloud infrastructure contractor.
19 years in IT. I design, automate, and operate cloud platforms — architecture and migration, Infrastructure as Code, cost optimization, and delivery pipelines — as bounded, remote B2B engagements for European engineering teams, delivered from Spain (CET) and handed over when done.
What I do
Infrastructure that works, plainly.
Automation & IaC
Terraform-based infrastructure and pipelines that remove manual steps and stay maintainable.
Cost & delivery security
FinOps cost reviews and DevSecOps pipelines with controls auditors accept and engineers keep.
Experience
Where I've worked.
mrexojo.com · B2B Contractor
Freelance Cloud & DevSecOps Engineer
Remote engagements for Orange Bank, SantaLucía, and Jefferson Frank IT Consulting: DevSecOps pipelines, FinOps cost control, and AI infrastructure operations.
Copado (US)
Cloud Infrastructure Engineer
Custom Terraform modules for a Salesforce DevOps platform on GKE; observability (Sumo Logic, Prometheus) sustaining 98% uptime across a team spanning US, India, and Europe.
Sngular (Spain)
Cloud & DevOps Engineer
Client engagements at Decathlon Spain (AWS EKS to GCP GKE migration) and Telefónica Foundation (IaC for a global high-availability platform).
Nokia Spain
Site Reliability Engineer
OpenStack and bare-metal operations for telecom OTT streaming infrastructure; automated provisioning with MAAS.
IIC / ZeppelinTV
Linux Systems Administrator
Foundational systems administration: Linux, virtualization, databases, backups, and network infrastructure.
Certifications
Always learning.
- NVIDIA NCA-AIIO — AI Infrastructure and Operations
- Google Cloud Certified Engineer (Renewed)
- AWS Solutions Architect Associate
- FinOps Certified Practitioner (FOCP)
- AWS Security Specialty
- HashiCorp Terraform Certified Associate
- Linux LPIC-3 (Virtualization & HA)
- OpenStack Certified Administrator (COA)
DevSecOps and Delivery Pipelines
CI/CD pipelines with security controls built in: fewer manual steps, auditable releases, and scanning that engineers actually keep.
Cloud Cost Optimization and FinOps
Structured cost reviews and FinOps practices that reduce cloud spend without degrading reliability or slowing delivery.
Infrastructure as Code and Automation
Terraform-based infrastructure and deployment automation that removes manual steps and stays maintainable after handover.
What a One-Week Cloud Cost Review Actually Finds
The typical findings of a short, structured cloud cost review — idle spend, mis-sized capacity, wrong service tiers — what each is worth, and why the durable savings come from process, not deletion.
When to Bring In a Cloud Infrastructure Contractor — and When Not To
A build-vs-borrow framework for engineering leaders: which infrastructure work justifies external senior capacity, what it should cost relative to hiring, and the three signs you are about to buy the wrong thing.
Managed Kubernetes for Mid-Size Companies: Decision Criteria
EKS, GKE, or AKS — or none of them. How to decide whether managed Kubernetes fits your organization, what it really costs to operate, and the simpler alternatives that are often the right answer.
Organized by the decision it helps you make, not by upload date — pick the topic that matches what you're deciding, not the week I recorded it.
Cloud Architecture & Migration
Decision-making behind cloud moves — what to check before committing budget.
Videos coming soon.
Automation & Infrastructure as Code
Terraform and pipeline patterns, and the over-engineering failure modes to avoid.
Videos coming soon.
FinOps & Cost Optimization
Where cloud spend actually goes, and what is worth fixing first.
Videos coming soon.
DevSecOps & Delivery
Security controls that survive daily engineering, not just an audit.
Videos coming soon.
Contact
Get in touch.
For scoping a cloud architecture review, a Terraform build, a cost audit, or a DevSecOps pipeline — book a call or write directly.