Mauricio Casas
Mauricio Casas

Senior Linux / Unix System Administrator

Open to offers · Member since 25 Sep 2026
Location
Oro Verde, Argentina
Desired salary
Unspecified
Work preference
Remote Only
Experience level
Senior

About

Professional summary

I am a Senior Linux / Unix System Administrator with more than four years of progressive experience supporting enterprise Linux infrastructure in mission-critical production, disaster recovery, and user acceptance testing environments.

I specialize in Red Hat Enterprise Linux administration, patch management, system readiness validation, LVM and filesystem administration, monitoring, troubleshooting, incident response, and formal change management. I have supported 24x7 follow-the-sun operations while maintaining strict service-level commitments.

I am automation-oriented and use Bash and Python to reduce operational toil. My scripting work for filesystem validation and identity management has saved approximately 8–10 hours of manual work per week.

I have hands-on experience with Datadog, Microsoft SCOM, UIM, BladeLogic, Remedy Smart ITSM, VMware, CA PAM, and enterprise access-management practices. I work with users, groups, sudoers, permissions, systemd, cron, fstab, SSH, and virtual machine lifecycle activities.

I collaborate effectively with application, database, middleware, monitoring, and SRE teams to coordinate maintenance, resolve incidents, improve observability, and strengthen service reliability. I am continuing to develop my DevOps and cloud skills through Git, Docker, and AWS Solutions Architect exam preparation.

I am also pursuing studies in Data Science and Information Systems Analysis, combining infrastructure operations expertise with interests in automation, data analysis, cloud infrastructure, DevOps, and SRE.

Skills

38 capabilities

Tech stack & tools

Working toolkit

Application Hosting

Development

Monitoring

Experience

Career history

Senior Unix System Administrator Kyndryl

Administer Red Hat Enterprise Linux 7, 8, and 9 systems in business-critical Production, Disaster Recovery, and UAT environments under a 24x7 follow-the-sun operating model. Coordinate monthly operating-system patching for approximately 40 servers using BladeLogic and perform readiness validations across more than 100 servers.

Manage LVM, filesystems, storage layouts, users, groups, sudoers, permissions, systemd, cron, fstab, SSH, and VMware virtual machine operations. Monitor infrastructure with Datadog, Microsoft SCOM, and UIM; resolve Sev1–Sev4 incidents; prepare implementation and rollback procedures in Remedy Smart ITSM; and co-develop Bash and Python automation that saves 8–10 manual hours per week.

Research Scholar FIUNER

Contributed to technological and social development projects connecting technology, research, and healthcare. Participated in applied research activities within FIUNER.

Designed and built a cross-platform application for field-data collection and the generation of heatmaps representing communication structures.

Public Health Intern FIUNER and Municipality of Oro Verde

Participated in the Aedes aegypti Monitoring and Prevention Program in public health and entomological surveillance. Supported preventive healthcare field activities in collaboration with FIUNER and the Municipality of Oro Verde.

Received recognition from Argentina’s Ministry of Health and the Pan American Health Organization for preventive healthcare field work.

Education

Learning history

Universidad Nacional de Entre Ríos (UNER)

Bachelor's Degree, Data Science

In progress. Core areas include databases, algorithms, data mining, statistics, data processing, and analysis.

Universidad Autónoma de Entre Ríos (UADER)

Information Systems Analyst, Information Systems Analysis

In progress. Core areas include systems design, networking, programming logic, and functional analysis.

Universidad Nacional de Entre Ríos (UNER)

Undergraduate Studies, Bioengineering

Completed coursework through the upper-level stage. Relevant coursework included programming fundamentals, advanced programming, vector calculus, differential equations, probability, and statistics. Participated in technology, research, and healthcare projects.

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