About the author
Hello! My name is Oscar Medina, I am a SRE or DevOps engineer based in Barcelona. I'm passionate about my job and I dont fear challenges and I am capable of learning and adapt to the situations that the job requires and explore new areas or tools that can have benefits the project and me as a professional. I'm currently learning DevSecOps to improve the security and reliability of the software.
Oscar Medina
Site Reliability Engineer
Skills
I don’t believe that proficiency can be measured, you can always learn new things or face new problems withing this field that evolves continuously. So, here is the list of tech where I feel comfortable.
I have also knowledge on managing AWS resources, various CI/CD platforms like Gitlab and Jenkins. I also used Ansible to automatize service installation and various tasks.
Courses and certifications
In this section, we will review the most important courses and certifications I have taken.
LFS261: DevOps and SRE Fundamentals - Implementing Continuous Delivery
Personal impressions
I learned a lot about using Jenkins as a CI-CD tool, previously I've worked with other cloud tools like Gitlab or Github actions, this helped me go deeper into Jenkins than the course suggested.
As I had a deeper knowledge of other agents I needed to learn how to work with Jenkins in the same way, if I wanted to move them to Jenkins, just knowing the basics about Jenkins was not enough.
LFD259: Kubernetes for Developers
Personal impressions
This course was quite complicated for some reasons, among them, the complexity of having a Kubernetes cluster, I ended deploying several virtual machines on my primary computer for that.
Another reason was the structure of the course itself, there were exercises and workshops I needed to complete, but no one reviews your job, I always had a feeling that I did them wrong.
After completing the course I took two months to work on my own projects to deploy them into my cluster, this helped me settling all the knowledge I had.
CKAD: Certified Kubernetes Application Developer
Personal impressions
The preparation for this certification was hard, the exam lasts 2 hours and in that time you needed to complete a series of exercises, for that you need to learn and understand all the configurations for any situation, this allows to complete tasks the fastest possible way.
The exam was taken in a plain terminal, for that reason I lost the possibility to use my favourite IDE to get completion suggestions. I had to learn and memorize all the things that I knew already in order to be autonomous and efficient, at the present time I'm really glad I appreciate it because I'm more efficient and I don't need to read documentation or examples with the same frecuency.
Experience
Promofarma
(NOV 2022 - PRESENT)
DevOps Engineer
Proppos
(JUN 2020 - NOV 2022)
Site Reliability Engineer
I was responsible for managing part of the cloud infrastructure and creating CI/CD pipelines.
Later on, added SCA and OSS license scanning as part of the existing pipelines to improve software security.
Another of my responsibilities was the automatization of OS configuration and software installation and update on edge devices.
Proppos
(OCT 2019 - NOV 2022)
Full-stack developerr
I worked on developing web applications designed to run both in the cloud and at the edge.
I was involved in building new projects from the ground, implementing new features, refactoring, and bug fixing
Fluttr
(FEB 2018 - AUG 2019)
React Front-end developer.
As the lead front-end developer of the company, I worked on maintaining and renewing the code and creating new projects and functionalities.I Also worked on leveling up the front-end architecture with Docker and Kubernetes.
Skylab
(SEPT 2017 - DEC 2017)
Full-stack Javascript Developer.
In this three month Bootcamp, I learned modern technologies for development and modern architecture.
I worked with Javascript and ES6 to build web applications, and I also learned ReactJS to build SPA.
For the server-side, I learned NodeJS and ExpressJS,
for the database MongoDB and for the serverside rendering PUG.