About
Who am I
I’m Alejandro Lázaro Chueca, a Cloud Solutions Architect, AWS Community Builder, AWS Ambassador in my company, and leader of the AWS Zaragoza User Group. I’m passionate about cloud technology, continuous learning, and sharing knowledge with the community.
On this blog, I publish articles in English and Spanish about the AWS ecosystem: best practices, cloud architectures, automation, and real-world experiences from my work as a cloud architect.
I dedicate much of my free time to creating content, projects, and resources that I hope bring value to the community.
👉 For more details about my professional background, you can visit my LinkedIn profile.
My Principles
I believe in keeping things simple and practical. Here are some principles that guide my work:
- Simplicity First: I’m a big fan of the
KISS(Keep It Simple, Stupid) design principle. Simple solutions are often the best solutions. - Serverless by Default: I love serverless architectures for their scalability, cost-effectiveness, and reduced operational overhead.
- Hands-on Learning: Theory is important, but nothing beats getting your hands dirty with real implementations. I don’t believe in getting certified just to collect medals; I prefer applied knowledge and practical experience.
- Community First: I believe in sharing knowledge openly and helping others grow. The tech community thrives when we collaborate rather than compete.
- Continuous Improvement: Technology evolves rapidly, so continuous learning and adaptation are essential.
I’m passionate about serverless architectures, event-driven systems, DevOps practices, Infrastructure as Code, and tackling new technology challenges.
Public AWS Community Contributions
Beyond this blog, I actively contribute to the AWS community through various public initiatives. I also build open-source projects in my free time — see the full list on my projects page.
Filter Contributions
🎤 Public Speaking Engagements
AWS Zaragoza User Group – Zaragoza, Spain
After +6 months using Amazon Kiro across many AWS projects, I shared what worked, what didn't, and the lessons learned the hard way. We reviewed several personal projects with their architectures, discussing the key takeaways from each - from initial problems to their resolution and deployment to production. Not theory: real technical decisions, mistakes, and solutions found along the way.
Check out the event page on Meetup if you want to see the agenda or join future sessions.
AWS Ambassador Japan Meetup with NTT DATA – Tokyo, Japan
Presentation about the activities we've developed in Spain to strengthen the local AWS community and foster collaboration.
AWS Community Day Spain 2023 – Barcelona
Collaborative talk about AWS security best practices, explaining why it's crucial to apply security from the project's inception and how to implement security quick wins rapidly and effectively. One of my most important talks so far, covering best practices for securing AWS workloads by design.
Visit the official event site for the full agenda and speaker lineup.
AWS Summit Madrid 2022 - IA & Data Analytics Corner
Practical demonstration of how we integrated Amazon Lex and Alexa with a Formula Student racing car, showcasing the possibilities of conversational AI in innovative applications.
AWS User Group Barcelona – Amazon Recap re:Invent
Real-world use case explaining how we applied AWS Glue and Amazon Athena to solve a data processing challenge for a client, showcasing the architecture and benefits achieved.
🏗️ Public Event Organization
AWS Zaragoza User Group – Zaragoza, Spain
Leading the main AWS community for professionals, students, and enthusiasts in Zaragoza. In 2026, I took on the role of community lead and have already organized 3 events, with ~9 planned for the year. Events are announced on Meetup.
I manage the group's events using events.playingaws.com, a serverless platform I built for community organizers.
AWS Community Day Spain 2026 – Pending to be confirmed
Fourth AWS Community Day in Spain. Location and date pending confirmation, expanding the event reach and consolidating the Spanish AWS community.
AWS Community Day Spain 2025 – Zaragoza
Third AWS Community Day in Spain. Organized in Zaragoza, expanding the event reach and consolidating the Spanish AWS community.
AWS Community Day Spain 2024 – Gijón
Second AWS Community Day in Spain. Organized at La Laboral in Gijón, consolidating the event as a national reference for the AWS community.
AWS Community Day Spain 2023 – Barcelona
First AWS Community Day in Spain. Organized in Barcelona, marking the beginning of a series of community events.
The Blog
This is a personal blog with a clear mission:
- Primary goal: Create periodic, high-quality AWS content and share it publicly
- Secondary goal: Maintain a learning mindset and stay current with AWS innovations
- Open philosophy: Knowledge should be accessible to everyone in the community
The technology stack and architecture decisions behind this blog are detailed in this technical deep-dive.
Disclaimer: Everything published here — articles, opinions, projects, and content — has been created entirely in my free time. All views are my own and do not represent, reflect, or relate to my employer in any way.
Playing with AWS means experimenting with new ideas and building real solutions.