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@heroseloi
Senior Linux System Administrator
With over 20 years of technology experience, I specialize in Linux servers, TCP/IP protocols, and script coding. My ability to deploy and maintain high-availability servers across bare-metal, virtual, and cloud environments has been a cornerstone of my career. I have a proven track record of improving systems and utilizing automation to enhance operational efficiency.
Throughout my career, I have successfully managed and maintained Linux-based systems, ensuring peak performance, security, and scalability. My experience includes working with various technologies such as Ansible, Docker, and AWS, and I have been instrumental in implementing solutions that enhance performance and reliability. I pride myself on my strong communication skills in both English and Portuguese and my adaptability to work in multicultural environments.
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Work history, roles, and key accomplishments
EUDA
Jan 2025 - Present (10 months)
Upgraded Matomo web analytics server, running on Linux, Apache, PHP, MariaDB, and Memcached. Installed an observability stack using Grafana and Prometheus to collect metrics from various hosts.
Symplicity
Aug 2021 - Present (4 years 3 months)
Managed and set up cloud environments to provide system access for employees and customers. Led a project to migrate the MS SQL Server production database to AWS RDS, enhancing scalability and performance.
Self-employed
Jul 2020 - Present (5 years 4 months)
Provided consulting services as a system administrator for various freelance projects. Deployed a comprehensive telephony system based on Asterisk for a call center client, including call billing and IVR systems.
HE Soluções
Jan 2006 - Present (19 years 10 months)
Founded and managed an IT startup, overseeing all business operations and developing print management software. Provided consultancy services for IT infrastructure setup and maintenance using Linux.
Degrees, certifications, and relevant coursework
Functional Training, Chef Automation Tool
Completed a 30-hour functional training program in the Chef automation tool at Leaseweb, enhancing skills in configuration management and infrastructure automation.
Online Courses, Kubernetes and Terraform
Completed online courses in Kubernetes and Terraform, gaining expertise in container orchestration and infrastructure as code.
Training, AWS Web Services
Underwent 40 hours of AWS Web Services training at MMTI Cloud Solutions, focusing on cloud computing and AWS platform services.
English Certificate, International and Intercultural Communication
Grade: C1
Attained a C1 level English Certificate, evaluated by IELTS in October 2020. Studied International and Intercultural Communication at the Third Level.
Bachelor Degree, Computer Science
Completed a Bachelor Degree of Computer Science, focusing on Software Engineering, Computer Networks, and Business Management. Gained foundational knowledge in various aspects of computer science.
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