Skip to content
FRANCESC CASTELL
— ABOUT

I build infrastructure that disappears.

DevOps engineer specialising in automation, security, and scalable AWS architecture. My work makes complex systems feel quiet — predictable, observable, and self-healing.

— Background

I'm a DevOps engineer and cloud architect based in Barcelona. My principle is simple: efficiency through automation — repetitive processes are opportunities for systematisation.

At IThinkUPC, I design and operate mission-critical AWS infrastructures for public sector and enterprise clients. Terraform enforces Infrastructure as Code; Centreon and Grafana give us proactive observability; GitHub Actions ship safely with security scans and automated rollouts.

Beyond operations, I'm deeply invested in the infrastructure layer of LLMOps — self-hosted RAG ecosystems with Proxmox, Ollama, and Qdrant, and the integration of autonomous agents into infrastructure operations to create systems that diagnose and heal themselves.

— Operating principles
01

Automate the boring path

If you run it twice, script it. If three times, ship it as a tool. Homer, my Terraform CLI, started as a 3-line alias and grew into a 400+ line internal tool.

02

Infrastructure as Code, always

No console clicks in production. Terraform codebases are modular, version-controlled, and reproducible across environments — pre, pro, anywhere.

03

Security as a design constraint

Not a bolt-on. ENS compliance, least-privilege IAM, audit trails by default. I hold the AWS Certified Security – Specialty credential.

04

Observability before features

If you can't see it, you can't fix it. End-to-end monitoring with Centreon, Grafana, and CloudWatch — real-time visibility into health and business metrics.

— Certifications
SAA-C03
Active

AWS Certified Solutions Architect — Associate

Amazon Web Services
Valid through Jan 2028
CLF-C02
Active

AWS Certified Cloud Practitioner

Amazon Web Services
Valid through Jan 2028
SCS-C03
In progress

AWS Certified Security — Specialty

Amazon Web Services
Currently studying
AZ-104
In progress

Microsoft Certified: Azure Administrator Associate

Microsoft
Currently studying
— Education
Salesians Sarrià
CFGS · Higher Vocational Training in Renewable Energies · Sep 2022 – Sep 2024

Acquired deep knowledge in clean and sustainable energy technologies. Learned planning, design, installation, and maintenance of solar, wind, hydroelectric, and biomass systems. Participated in practical projects implementing sustainable energy solutions in real environments.

IES Emili Darder
CFGS · Higher Vocational Training in IT Systems Administration · Sep 2019 – Jun 2021

Solid training in the design, implementation, and maintenance of networks, cybersecurity, server configuration, operating system administration, and resource optimisation.

🏆 Balears Skills 2021 — Competitor · Skill 39 (IT Network Systems Administration)
IES Biel Martí
CFGM · Vocational Training in Microinformatics Systems and Networks · Sep 2017 – Jun 2019

Developed key skills in design, configuration, and maintenance of systems, network management, and technical problem solving. Practical projects applied in real environments, building the foundation for a career in computing and networking.

— Languages
Català Native
Español Native
English Professional