Keith Botelho
Lisbon,CT
Summary
Experienced Systems Administrator with 20 years of expertise in designing, developing, and maintaining complex software and managing server infrastructures and data center operations across various operating system platforms. Highly proficient in implementing enterprise solutions for business applications in broad-scale, web-delivered environments. Committed to delivering the best technical solutions that meet functional and business requirements. A diligent troubleshooter, adept at effectively interacting with employees and departments in diverse IT environments. Possessing a flexible and positive work attitude, focused on producing results under tight deadlines. Demonstrating a comprehensive understanding of the Software Development Life Cycle.
Overview
11
11
years of professional experience
Work History
Systems Administrator II
Chelsea Groton Bank
07.2023 - Current
- Administer Active Directory, Group Policy, and user access, ensuring PoLP (Principle of The Least Privilege) while coordinating with MSPs for seamless access control.
- Migrating Horizon VDI to v8, while optimizing remote user experience and security.
- Patch software and install new versions to eliminate security problems and protect data.
- Configured and tested Windows Server operating systems with roles features.
- Mentored employees and offered constructive feedback for performance improvement.
- Contributed to development, administration and testing of disaster recovery plans.
- Delivered Tier 2 and Tier 3 support for problem identification, diagnosis and issue resolution.
Senior Systems Administrator
Collette Travel Services Inc.
04.2021 - 07.2023
- Aligned infrastructure to comply with NIST standards, while improving organizational resilience.
- Developed a comprehensive patch management strategy for Windows and Linux environments, significantly enhancing security posture.
- Led VDI GPU upgrade and Azure migration projects, ensuring high availability and scalability of critical systems.
- Collaborated with stakeholders to define requirements for new IT initiatives, ensuring alignment with organizational objectives.
- Troubleshot complex technical issues, providing timely resolution to minimize impact on stakeholders.
- Improved overall system performance by optimizing hardware and software configurations.
- Reduced security incidents with proactive monitoring and timely patching of systems.
Systems Administrator II
Collette Travel Services Inc.
01.2019 - 04.2021
- VMware administration and PRTG/Auvik deployment, maximizing system uptime and network transparency.
- Maintained AD and group policies, removing redundant configurations and enhancing system performance.
- Managed cloud-to-on-prem migration in response to COVID-19, stabilizing critical systems during workforce adjustments.
- Performed software installations and upgrades to Linux and Windows operating systems.
- Configured and tested Windows Server operating systems with roles features.
- Mentored employees and offered constructive feedback for performance improvement.
- Attended meetings to deliver status reports to key stakeholders.
Field Engineer
Integra Network Services
11.2015 - 01.2019
- Delivered onsite/remote support, deploying and maintaining network solutions (Unifi Controller, Veeam, Auvik).
- Automated key daily tasks with Kaseya, increasing operational efficiency and reducing response times.
- Provided tier-2 support, facilitating complex troubleshooting and escalation resolution.
- Enhanced client satisfaction by providing timely and accurate technical support for complex issues.
- Mentored junior engineers, fostering a positive learning environment that promoted professional growth.
- Identified major issues that could arise and provided solutions for these problems.
System Engineer
Corporate IT Solutions
05.2014 - 11.2015
- Resolved issues and escalated problems with knowledgeable support and quality service.
- Resolved complex technical issues through effective problem-solving techniques and root cause analysis.
- Improved system efficiency by implementing and optimizing hardware and software components.
- Created comprehensive documentation for system configurations, procedures, and best practices to facilitate knowledge sharing among team members.
- Led various projects in SonicWall and KACE deployment, enhancing network security and operational efficiency.
- Onboarded new clients, developed documentation, and conducted training, ensuring smooth transitions and knowledge transfer.
Education
Associate of Applied Science - Computer Network System
ITT Technical Institute
Norwood, MA03.2012
Associate of Applied Science - Networking And Security Management
ECPI College of Technology
Virginia Beach, VA09.2005
Skills
- Desktop support
- Data backup and retrieval
- Remote access technology
- Technical issues analysis
- Data entry
- Bug tracking
- Customer service
- G-Suite
- Active Directory management
- Windows administration
- Patch management
Timeline
Systems Administrator II
Chelsea Groton Bank
07.2023 - Current
Senior Systems Administrator
Collette Travel Services Inc.
04.2021 - 07.2023
Systems Administrator II
Collette Travel Services Inc.
01.2019 - 04.2021
Field Engineer
Integra Network Services
11.2015 - 01.2019
System Engineer
Corporate IT Solutions
05.2014 - 11.2015
Associate of Applied Science - Computer Network System
ITT Technical Institute
Associate of Applied Science - Networking And Security Management
ECPI College of Technology
Work Availability
monday
tuesday
wednesday
thursday
friday
saturday
sunday
morning
afternoon
evening
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Relevant Skills
- Administer Active Directory, Group Policy, and user access, ensuring PoLP (Principle of The Least Privilege) while coordinating with MSPs for seamless access control.
- Aligned infrastructure to comply with NIST standards, while improving organizational resilience.
- Mentored junior Systems Administrators, fostering skill growth and system reliability.
- VMware administration and PRTG/Auvik deployment, maximizing system uptime and network transparency.
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