Prior to working at this company, I earned four AWS certifications and participated in several projects that required AWS knowledge, but nothing compared to what I achieved during my time here.

You might be wondering how I ended up collaborating on architecture and infrastructure, given that I was originally hired as a backend engineer. The truth is, I was extremely lucky. There were managerial changes within the company, and a few months after I started, a new CTO joined the team. We were also a pretty small team and always needed an extra pair of hands.

During a 1-on-1 with the CTO, we discussed hiring someone to help us with DevOps. I’m glad I had the courage to ask if I could assist with some related tasks. At that point, he didn’t know what I was capable of, but he took a chance and gave me the opportunity to work on something.

I remember initially offering to migrate our main application from EC2 servers to containers, as I had worked on dockerizing the app during my first months. Deploying our EC2 servers was a mess, and moving to containers would also improve scalability and availability. So, I got the green light and started working on it.

I’m really grateful that the CTO trusted me with the task of working on architecture and infrastructure. This was a real game-changer for my professional career. Below, you’ll find a list of contributions I made to the company in different areas like Observability, Cost Savings, Security, and DevOps, among others. They are not listed in any particular order, but the cost-saving initiatives are grouped at the bottom for easier reference.

The following posts tell the story of how I completed these challenges and significantly reduced billing.

Index⌗

[!attention] Not all posts are written yet, and my goal is to publish them as quickly as possible.

Observability⌗

  • Grafana Implementation.
  • Datadog Frontend Implementation.
  • Datadog Backend Implementation.
  • Uptime Kuma Implementation.

Security⌗

  • Fraud Mitigation.
  • CSRF Tokens implementation.
  • Google reCaptcha Enterprise.
  • WAF Implementation.
  • Bot Control with Captcha.
  • SQL Injection rules.
  • Block requests based on Regex Patterns.
  • Block Requests based on IP.
  • Fraud Detection Panel on Grafana.
  • Content Security Policies.
  • Security - SSH Access from external Big Data Apps

DevOps & CI/CD⌗

Cost Savings - Saving over 191k yearly.⌗

These are a few of the remarkable stories I have collected during my time with the company, and they are proof of what we can achieve when willing to improve.