Dario Almiñana

Professional Summary

Results-driven Senior Site Reliability Engineer (SRE) and DevOps Architect with over 15 years of experience engineering, automating, and scaling mission-critical Enterprise infrastructure with 99.99% availability. Proven track record in reducing infrastructure expenditure by 30% through FinOps, accelerating deployment cycles by 60% with automated CI/CD pipelines, and leading zero-downtime cloud migrations on AWS and OpenShift.

Accomplished in automating multi-node deployments across 400+ servers using Ansible and Bash (20+ yrs experience), enforcing strict PCI-DSS security compliance, and developing custom microservices in Python. Expert in Cloud-Native Architecture, Infrastructure as Code (Terraform), Container Orchestration (Kubernetes), and full Observability stacks (Prometheus, Grafana, Loki).

Professional Experience

1. Senior SRE / DevOps Lead SwissMedical

   2025 – Present
   • Architect and maintain enterprise-grade hybrid cloud infrastructure on AWS and RedHat OpenShift, sustaining 99.99% SLA uptime for healthcare critical systems.
   • Spearhead FinOps cloud optimization initiatives, restructuring resource allocation and reserved instances to achieve a 25% drop in monthly AWS expenditure.
   • Automate 100% of core cloud provisioning using modular Terraform scripts and implement CloudFlare WAF to block over 100k malicious requests daily.
   • RedHat
   • OpenShift
   • AWS
   • Terraform
   • CloudFlare
   • FinOps
   • IaC

2. SRE DevOps Consultant ALESIA

   2025
   • Consulted on enterprise CI/CD modernization, reducing deployment cycle times from days to under 30 minutes through automated continuous integration workflows.
   • Designed and implemented high-throughput GitHub Actions and Jenkins pipelines fully integrated with SonarQube, JFrog Artifactory, and N8n orchestration.
   • Optimized middleware performance and thread pools across WebLogic and JBoss application servers, boosting transaction throughput by 35%.
   • Ubuntu
   • RedHat
   • GitHub Actions
   • Jenkins
   • JFrog
   • SonarQube
   • N8n
   • WebLogic
   • JBoss
   • Salesforce

3. SRE DevOps Engineer Paramedics

   2024
   • Engineered automated backup and disaster recovery (DR) protocols, reducing Recovery Time Objective (RTO) by 70% during incident simulations.
   • Diagnosed and resolved critical AWS server bottlenecks and database locks, restoring seamless customer product update deployments.
   • AWS
   • PHP
   • WordPress
   • Linux SysAdmin
   • Disaster Recovery
   • Backup Automation

4. Python Backend Developer & SRE DevOps Engineer Matic

   2019 – 2024
   • Architected and deployed production Kubernetes clusters and Docker container pipelines, scaling system capacity to handle 5x user traffic growth.
   • Built a centralized observability stack utilizing Prometheus, Grafana, and Loki, decreasing Mean Time to Detect (MTTD) incidents by 45%.
   • Executed security hardening and audit remediations to achieve official PCI-DSS Compliance certification for payment processing infrastructure.
   • Engineered enterprise Python (Flask, SQLAlchemy) and NestJS backend microservices processing thousands of daily API calls.
   • Kubernetes
   • Docker
   • AWS
   • Jenkins
   • GitHub Actions
   • Grafana
   • Loki
   • Prometheus
   • Python (Flask)
   • NestJS
   • OpenVPN
   • PCI-DSS

5. SRE DevOps Engineer HVAC

   2022 – 2025
   • Maintained 99.9% server infrastructure uptime across DigitalOcean cloud environments and scheduled automated snapshot backups.
   • Executed OS kernel upgrades, vulnerability patching, and security baselining across Linux node pools without service disruption.
   • Ubuntu
   • DigitalOcean
   • Linux Systems Engineering
   • Patch Management

6. SRE DevOps Engineer Lumina

   2023
   • Automated development, staging, and production environment provisioning using containerized Docker baselines, reducing setup time by 80%.
   • Established automated GitHub repository branch management and CI/CD deployment pipelines to AWS and DigitalOcean hosting.
   • PHP
   • AWS
   • DigitalOcean
   • GitHub Actions
   • CI/CD Automation

7. SRE DevOps Consultant CloudMasters

   2019 – 2021
   • Executed zero-downtime database and Elastic Beanstalk infrastructure migrations on AWS to eliminate legacy technical debt.
   • Designed automated vulnerability scanning workflows and patched AWS Lambda function security headers to reach 100% compliance in security audits.
   • AWS Elastic Beanstalk
   • AWS Lambda
   • Database Migration
   • Security Hardening
   • Vulnerability Analysis

8. Senior Linux Systems Administrator Financial Entity / Enterprise Banking

   2007 – 2024
   • Administered mission-critical banking Linux infrastructure (RedHat, CentOS, SUSE, Debian) serving thousands of daily financial transactions over 17 years.
   • Managed Ansible automation playbooks to push software upgrades, configurations, and patch management across 400+ remote Linux servers in minutes.
   • Enforced rigorous data retention, daily backups, and led physical/virtual disaster recovery drills to ensure compliance with financial regulations.
   • RHEL
   • SUSE
   • Ubuntu
   • Debian
   • CentOS
   • Ansible
   • Bash Scripting
   • Network Troubleshooting
   • Disaster Recovery