Mauricio Casas
Mauricio Casas

Senior Unix System Administrator

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

About

Professional summary

I am a Linux and Unix System Administrator with more than four years of experience supporting enterprise Red Hat Enterprise Linux environments in production, disaster recovery, and user acceptance testing environments.

I administer RHEL 7, 8, and 9 systems, with hands-on expertise in patch management, LVM, filesystems, users and groups, sudoers, systemd, cron, fstab, SSH, storage management, and troubleshooting.

I work in 24x7 follow-the-sun operations and manage incidents, production changes, readiness validations, implementation plans, rollback procedures, and root cause analysis in ITIL-driven environments.

I use Bash and Python automation to reduce repetitive work and improve operational consistency. I also have experience with enterprise monitoring platforms, VMware virtualization, access management, and cross-functional collaboration with application, database, middleware, monitoring, and SRE teams.

I am continuing to develop my skills in Git, Docker, cloud architecture, data science, and software development while pursuing university studies in Data Science and Information Systems.

Skills

27 capabilities

Tech stack & tools

Working toolkit

Application Hosting

Development

Languages & Frameworks

Monitoring

Experience

Career history

Senior Unix System Administrator Kyndryl

Administered RHEL 7, 8, and 9 systems supporting business-critical Production, Disaster Recovery, and User Acceptance Testing environments within a 24x7 follow-the-sun operating model across Argentina and India.

Coordinated monthly operating-system patching with BladeLogic and performed pre-maintenance readiness checks covering filesystem capacity, mounts, services, fstab consistency, backup agents, monitoring agents, and implementation prerequisites. Created implementation and rollback plans and executed controlled changes through Remedy Smart ITSM.

Managed LVM, filesystems, storage layouts, users, groups, sudoers, permissions, systemd, cron, fstab, SSH, and VMware virtual-machine operations. Monitored infrastructure with Datadog, Microsoft SCOM, and UIM; resolved Sev1-Sev4 incidents; produced RCA reports; and collaborated with application, database, middleware, monitoring, and SRE teams.

Co-developed Bash and Python automation for filesystem validation and identity management. Led Solaris monitoring activities, including Microsoft SCOM deployment and migration to UIM, and addressed vulnerabilities, false alerts, storage issues, and log-management problems.

Research Scholar FIUNER

Contributed to technological and social development projects connecting technology, research, and healthcare.

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

Public Health Intern FIUNER and Municipality of Oro Verde

Participated in the Aedes aegypti Monitoring and Prevention Program within public health and entomological surveillance activities.

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. Coursework includes databases, algorithms, data mining, statistics, data processing, and analysis. Technologies include Python, R, Oracle DB, SQL, and Git.

Universidad Autónoma de Entre Ríos (UADER)

Information Systems Analyst, Information Systems

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 includes programming fundamentals, advanced programming, vector calculus, differential equations, probability, and statistics. Participated in technology, research, and healthcare projects.

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