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Karlken AlvarezKA

Karlken Alvarez

DevOps & Cloud Engineer | Scalable Infrastructure

€350/day
Milan, IT
3-7 years

Average response time: 1 hour

About Karlken

I help companies build, deploy, and maintain reliable infrastructure using Docker and modern DevOps practices.

I specialize in containerized environments (Docker, Docker Swarm), reverse proxy setup with Traefik, and cloud-based infrastructures designed for scalability and stability.

In my daily work, I manage production systems, implement monitoring (Grafana, Prometheus, Loki), and automate backups and deployments to ensure reliability and performance.

I focus on practical solutions: from setting up infrastructures from scratch to fixing deployment issues and improving existing systems.

If you need a solid, production-ready environment or help with DevOps challenges, feel free to reach out.
  • Italian

    Native or bilingual

  • English

    Fluent

  • Filipino

    Conversational

Can work on-site
Milan (up to 50km)

Experience

  • Zerouno srl
    SysAdmin | DevOps Engineer Consultant
    DIGITAL AND IT
    April 2024 - Today (2 years and 2 months)
    Milan, Metropolitan City of Milan, Italy
    • Designed, built, and managed infrastructure based on Docker Swarm and Docker Compose, covering production, test, and development environments.
    • Implemented Traefik v3 for secure routing, reverse proxy, and TLS certificate management.
    • Set up full monitoring and observability stacks with Grafana, Prometheus, Loki, and Alertmanager, integrating automated alerts (Telegram, email).
    • Automated PostgreSQL and volume backups on Wasabi S3 with retention policies and tested disaster recovery plans.
    • Optimized resources, decommissioned obsolete services, and improved system reliability. System Administration & Security
    • Configured and maintained FortiGate firewalls: access rules, SSL/IPsec VPNs, DNS management, and network segmentation.
    • Managed domains, SSL/TLS certificates, and hardened Nginx, Apache2, and Tomcat servers.
    • Implemented high availability and disaster recovery strategies, including PostgreSQL replication and WAL archiving. IT Support & Operations
    • Maintained and troubleshot Linux and Windows servers, ensuring secure updates and uptime.
    • Provided tailored IT solutions and technical documentation for internal and client infrastructures.
    Docker Swarm Traefik Docker Linux Cloud Infrastructure
  • Expandi Group
    Technical Project Manager - Full Stack Developer - DevOps - IT Manager
    October 2021 - April 2024 (2 years and 6 months)
    Milan, Metropolitan City of Milan, Italy
    • Planned and coordinated projects, defining the technical roadmap and priorities.
    • Led and supported developers across front-end and back-end, ensuring on-time feature delivery.
    • Built and maintained internal Java web applications (Spring, Thymeleaf, HTML, JavaScript, CSS).
    • Managed and customized the Salesforce CRM platform to optimize internal processes.
    • Integrated Docker and Jenkins for continuous integration and deployment pipelines.
    • Maintained Linux servers and handled IT infrastructure for stability and security.
    Spring boot Docker CI/CD Jenkins Technical project management
  • Expandi Group
    Full Stack Developer
    September 2019 - October 2021 (2 years and 1 month)
    Milan, Metropolitan City of Milan, Italy
    • Developed and tested internal Java web applications with Spring, Thymeleaf, HTML, CSS, and JavaScript.
    • Administered and customized the Salesforce CRM, ensuring smooth business workflows.
    • Provided internal technical support and maintenance for company tools.
    Java Spring boot JavaScript HTML/CSS Salesforce

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