Freelancer profile translated to English.
Back to original languageAbout Juanjo
I help companies build, maintain, and secure scalable and cost-efficient infrastructures.
What do I bring to your project? A cross-functional and highly effective SRE/DevOps profile. I combine the robustness of a classic "bare-metal" Systems Administrator with the agility of modern Cloud operations. I understand infrastructure end-to-end: from network and Linux Kernel behavior to advanced microservices orchestration. This global vision allows me to diagnose and solve complex problems that more specialized profiles often overlook.
Specialties and services I manage:
- Cloud Architecture and Operations: Daily administration and deployment of Kubernetes clusters, both on managed providers (Google's GKE, Azure's AKS) and on high-performance bare-metal environments (k0s).
- Communications and Microservices: Complex traffic management, Ingress Controllers (Traefik), eBPF-based networking (Cilium), and low-latency gRPC service deployment.
- SysAdmin: Advanced administration and hardening of Linux (AlmaLinux/RHEL, Debian), Windows Server environments, and virtualization ecosystems (VMware, Proxmox).
- Technical Mentoring and Leadership: Training, coaching, and pair programming for technical teams or junior profiles. I translate complex system architectures and concepts into practical, documented knowledge to elevate your team's technical level.
- Observability and Continuity: Absolute cluster visibility through Grafana/Prometheus and architectural design of Backup and Disaster Recovery (DR) plans.
- Automation and FinOps: Auditing and optimizing resources to drastically reduce the cloud bill. Efficient maintenance without manual intervention using Bash, Python, Ansible, and Infrastructure as Code (IaC).
If you are looking for a pragmatic engineer to strengthen your systems' stability or accelerate your team's technical maturity, let's talk.
Spanish
Native or bilingual
English
Fluent
Catalan
Native or bilingual
Can work on-site
Murcia (up to 50km)
Experience
- FreelanceDevOps & SRE ConsultantDecember 2024 - Today (1 year and 8 months)Murcia, SpainDevelopment of personal projects to explore new technologies in the cloud ecosystem. Continuous learning and preparation for advanced certifications in Google Cloud and Kubernetes Administrator. Providing technical training and mentoring to IT students and junior professionals.
- NDATechnology ConsultancyJune 2024 - November 2024 (5 months)Designed and implemented CI/CD pipelines using GitHub Actions. Managed Infrastructure as Code (IaC) using Terraform and Bicep. Created and managed deployment packages with Helm for applications in Azure Kubernetes Service (AKS).
- Smarting EngineeringSystems EngineerJanuary 2024 - June 2024 (5 months)Cornellà de Llobregat, CT, SpainLed the migration of virtualized workloads and the container platform to OpenShift. Improved infrastructure observability by implementing a stack with Grafana, Loki, and Prometheus.
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Education
- Technician in Microcomputer Systems & NetworksIES Francisco de2017Technician in Microcomputer Systems & Networks