Hi, I'm Sergio Muriana Cobo

Platform / DevOps Engineer

Specialized in operating and evolving core production infrastructure with a focus on Kubernetes, CI/CD, observability, and automation.

About Me

Who I Am

I'm a Platform / DevOps Engineer currently working at PhoenixNAP (since 2020), where I focus on operating and evolving core production infrastructure. My work spans authentication platforms, CI/CD pipelines, Kubernetes-based workloads, and comprehensive observability solutions.

Previously at Glownet (2016-2019), I wore multiple hats as an Android Developer building NFC-based payment systems for 2M+ users, Info Security Manager leading security audits and GDPR compliance, and Site Reliability Engineer implementing AWS autoscaling solutions.

I act as a cross-team technical reference, supporting multiple engineering teams and mentoring teammates, with a strong focus on reliability, automation, and best practices.

Skills & Technologies

Kubernetes Docker GitOps (Flux CD) CI/CD GitLab Prometheus Grafana Kibana OpenSearch Keycloak Apigee AWS Java Python Android RxJava Dagger2 Git ELK/Wazuh Security & GDPR

Areas of Expertise

  • Platform Engineering & SRE
  • Kubernetes & Container Orchestration
  • Observability & Monitoring
  • CI/CD & GitOps
  • Security & Compliance
  • Team Mentoring & Technical Leadership

Professional Experience

Platform / DevOps Engineer

PhoenixNAP

Remote

Jan 2020 - Present

Platform-focused software engineer responsible for operating and evolving core production infrastructure. Working on authentication platforms (Keycloak), CI/CD infrastructure, and Kubernetes-based workloads, with a strong focus on reliability, automation, and observability.

Keycloak CI/CD Kubernetes Prometheus Grafana Kibana OpenSearch Apigee Flux CD GitLab

Software Developer

Glownet

Madrid, Spain

Feb 2016 - Dec 2019

Android Developer

Developed NFC-based payment app for events with 2M+ unique users. Built from greenfield using MVP architecture, Clean Code principles, Dagger2, RxJava, and Retrofit. Optimized performance using Android Profiler and Canary Leak.

Info Security Manager

Led security audits, implemented static code analysis, deployed ELK/Wazuh HIDS, and ensured GDPR compliance.

Site Reliability Engineer

Implemented AWS autoscaling systems to ensure server reliability and availability.

Android MVP RxJava Dagger2 NFC Security GDPR ELK/Wazuh AWS

Freelance Developer

Self-Employed

Jun 2013 - Aug 2016

Worked on diverse projects using Java, PHP, HTML, JavaScript, and CSS. Built Android applications and web solutions with frameworks like SlimPHP, Joomla, and WordPress.

Notable Project: Developed a prototype for RENFE (Spain's national train company) providing real-time train arrival estimates using geolocation, alarms, and customizable UI.

Java PHP Android Joomla WordPress

Software Developer

Enala

Jaén, Spain

Apr 2014 - Oct 2014

Developed Android applications for Spanish car insurance companies focused on roadside assistance. Also worked on frontend and backend development using Java Spring, HTML, and CSS.

Android Java Spring HTML/CSS

Web Developer

Biestable S.L

Jaén, Spain

Apr 2009 - Jun 2009

Worked with Joomla CMS using PHP, HTML, and CSS to build and maintain web applications.

Joomla PHP HTML/CSS

Education

Degree in Computer Engineering

Universidad de Jaén

Jaén, Spain • 2011 - 2015

Expert in IT with special mention in Business Informatics

EQF Level 6

Senior Technician in Computer Systems Administration

I.E.S Virgen del Carmen

Jaén, Spain • 2007 - 2009

Networks maintenance, Linux, relational databases, C, HTML, PHP, JavaScript, and CSS

EQF Level 5

Get In Touch

Feel free to connect with me on GitHub or LinkedIn for collaborations, opportunities, or tech discussions!