Ángel Chávez
Ángel Chávez

Senior Systems Administrator and IT Coordinator

Open to offers · Member since 24 Sep 2026
Location
Sangolquí, Ecuador
Desired salary
Unspecified
Work preference
Hybrid / Full Time
Experience level
Senior

About

Professional summary

I am a results-driven Senior Systems Administrator and Acting IT Director with more than 11 years of experience leading end-to-end IT operations across public institutions, ISPs, and private enterprises.

I combine hands-on infrastructure expertise with strategic IT leadership. My work includes administering Windows and Linux environments, virtualizing physical infrastructure, managing networks, databases, email platforms, web services, and enterprise security controls.

I have delivered measurable operational improvements, including 99% uptime for mission-critical services, an 80% reduction in institutional email spam, and a 30% improvement in database response times through SQL tuning and infrastructure optimization.

I have led help desk and ITSM standardization initiatives, managed Level 1 through Level 3 support operations, supervised IT budgets, coordinated vendors, and supported procurement processes. I am comfortable translating technical priorities into clear plans for leadership.

I work with technologies including VMware, Docker, Ansible, Active Directory, PostgreSQL, Grafana, Fortinet, Sophos, PfSense, Zimbra, Nginx, and Cloudflare. I also bring experience in high-availability services, monitoring, cybersecurity, hybrid cloud environments, and automation.

I am a native Spanish speaker with upper-intermediate professional English. I am currently based in Sangolquí, Ecuador, and am open to relocating anywhere in the world with company support.

Skills

42 capabilities

Tech stack & tools

Working toolkit

Analytics

Application Utilities

Collaboration

Experience

Career history

Infrastructure Analyst 3 Asociación de Municipalidades Ecuatorianas (AME)

I administer network and IT infrastructure for the organization, including Active Directory services and core operational environments.

I also manage procurement processes and support the planning, administration, and continuity of institutional technology infrastructure.

Software Operations Engineer Telconet S.A.

I maintained more than 50 Linux virtual servers and over 60 production containers through preventive and corrective operations. My work supported 99% operational uptime for critical services using proactive Grafana monitoring dashboards.

I managed PostgreSQL availability and corporate application stability, including Nginx and HAProxy web and proxy environments. I deployed, administered, and monitored servers and services to ensure continuity of the corporate virtual infrastructure.

Systems Administrator Cajamarca Protective Services

I led corporate technical support operations and resolved complex Level 2 and Level 3 incidents while meeting SLA and ticket-closure targets. I optimized PostgreSQL, MariaDB, and MySQL databases through SQL tuning and query optimization, improving response times by 30%.

I administered more than 50 Linux servers, container environments, and microservice deployments using Java, PHP, and Node.js. I also managed Sophos and ManageEngine security consoles, Zimbra email services, Apache and WildFly web servers, and Nginx proxy services.

Technology Analyst II / Acting IT Director / Support & Infrastructure Lead Junta Nacional de Defensa del Artesano (JNDA)

I led infrastructure, support, and IT management activities, including periods serving as Acting IT Director. I migrated more than 20 physical servers to virtual environments, improving system performance by 25%.

I configured perimeter security policies and PfSense firewalls, reducing institutional email spam by 80%. I implemented a nationwide OSTicket help desk, standardized ITSM support processes, administered ESET ERA, Bitdefender GravityZone, Zimbra, Windows and Linux servers, and managed the IT budget.

I also configured Cloudflare to improve web security, institutional domain performance, and service availability.

Technician / Support and Administration SENATEL – ARCOTEL

I provided Level 1 and Level 2 technical support to institutional users and ensured the operational continuity of workstations and user services.

I administered Active Directory domain controllers, Exchange Server email accounts, antivirus platforms, and NAS storage systems to support critical organizational operations.

Education

Learning history

Newman Graduate School

Master's, Information Technology Management

Master's degree in Information Technology Management.

Escuela Politécnica Nacional (EPN)

Bachelor of Science, Computer Systems Engineering

Bachelor's degree in Computer Systems Engineering.

Colegio Militar N.º 10 Abdón Calderón

Technical High School Diploma, Commerce and Administration, IT Specialization

Technical high school diploma with an IT specialization.

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