Senior IT / System Administrator jobs in United States
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Thinix ยท 1 day ago

Senior IT / System Administrator

Thinix is a technology corporation specializing in managed technology solutions. The Senior IT / System Administrator will be responsible for maintaining and supporting complex LAN and WAN networks, providing top-tier customer service, and leading infrastructure projects to enhance productivity and security for clients.

Cloud ComputingInternetNetwork SecuritySoftwareWeb Apps

Responsibilities

Identify, propose, design, and deliver appropriate infrastructure upgrades/projects for customers to enable a more productive, secure, and stable environment in line with best-in-class IT practices
Meet with new customers to discuss their challenges and goals, and work with them to develop plans to address those challenges and to reach their goals, while still maintaining secure baselines and adhering to best practices
Design complex LAN and WAN infrastructure
Install, configure, repair, maintain, troubleshoot, and diagnose PCs, servers, virtualization infrastructure, network switches, routers, firewalls, wireless access points, network software, VLANs, VPNs, and nearly any high-level issue that may occur in the enterprise
Respond to network alerts and customer issues to remediate issues in an efficient manner
Expeditiously answer customer calls, diagnose issues, respond quickly, and complete the service loop
Work with Level 2 Computer Network Technician to determine server and other equipment specifications for customer projects
Specify accurate time and material requirements for large-scale customer projects such as facility expansions and virtualization implementations
Design and implementation of new Windows Server-based infrastructure
Management, deployment, and troubleshooting of Active Directory and Group Policies
Management, deployment, and troubleshooting of varied email systems, such as Office 365
Detailed troubleshooting of email flow issues, where a strong knowledge of DNS is required
Carefully organize customer documentation through project lifecycles
Service auditing, for example:
Periodically validating backups are configured to back up all data on all volumes, at specified intervals, and to all appropriate media
Periodically validating firewall rules do not allow unnecessary traffic inbound or outbound
Periodically validating that all machines on the network meet the specified baseline security settings
Test and implement new technologies for in-house as well as customer facilities
Implement monitoring and automation for various systems using in-house and third-party platforms
LAN and WAN design, including implementation of VLANs and VPNs

Qualification

LANWAN designWindows Server 2025Microsoft Active DirectoryServer virtualizationDNSProtocolsNetwork securityEmail systems managementScripting for automationCustomer serviceTeam leadership

Required

Communicate effectively with customers on both a technical and non-technical level
Work as part of a team as well as work unsupervised
Strive to constantly learn new technology and devices
Be motivated and self-managed
Often travel to customer locations to directly work with customers and resolve issues on-site
Identify, propose, design, and deliver appropriate infrastructure upgrades/projects for customers to enable a more productive, secure, and stable environment in line with best-in-class IT practices
Meet with new customers to discuss their challenges and goals, and work with them to develop plans to address those challenges and to reach their goals, while still maintaining secure baselines and adhering to best practices
Design complex LAN and WAN infrastructure
Install, configure, repair, maintain, troubleshoot, and diagnose PCs, servers, virtualization infrastructure, network switches, routers, firewalls, wireless access points, network software, VLANs, VPNs, and nearly any high-level issue that may occur in the enterprise
Respond to network alerts and customer issues to remediate issues in an efficient manner
Expediently answer customer calls, diagnose issues, respond quickly, and complete the service loop
Work with Level 2 Computer Network Technician to determine server and other equipment specifications for customer projects
Specify accurate time and material requirements for large-scale customer projects such as facility expansions and virtualization implementations
Design and implementation of new Windows Server-based infrastructure
Management, deployment, and troubleshooting of Active Directory and Group Policies
Management, deployment, and troubleshooting of varied email systems, such as Office 365
Detailed troubleshooting of email flow issues, where a strong knowledge of DNS is required
Carefully organize customer documentation through project lifecycles
Service auditing, for example: Periodically validating backups are configured to back up all data on all volumes, at specified intervals, and to all appropriate media. Periodically validating firewall rules do not allow unnecessary traffic inbound or outbound. Periodically validating that all machines on the network meet the specified baseline security settings
Test and implement new technologies for in-house as well as customer facilities
Implement monitoring and automation for various systems using in-house and third-party platforms
LAN and WAN design, including implementation of VLANs and VPNs
Server operating systems, up to Windows Server 2025
Microsoft Active Directory, including group policies
DNS, HTTP, HTTPS, SNMP, SMTP, POP3, IMAP, as well as other protocols
DNSSEC, SPF, DMARC, DKIM
Ethernet, VLANs, VPNs, switching, and routing
Wireless networking 802.11ac/ax/be
Server virtualization using VMWare, vCenter, and ESXi
NAS devices, security, and configuration
Physical network infrastructure, including cabling standards

Preferred

Thorough understanding of Microsoft SQL, Microsoft Exchange / Office 365, Microsoft Teams
SAN (Storage Area Networks), iSCSI, SAN management, LUN configuration & management (Dell PowerStore / HPE Alletra)
Scripting for the purposes of automation, such as through PowerShell, batch files, VBScript
Knowledge of RMM products such as ConnectWise and Kaseya
Exposure to containerization Docker, Portainer, Kubernetes, or LXC
Other tier-1 hypervisors such as Hyper-V, Proxmox, etc
Backup platforms such as Veeam or Datto

Benefits

Employer-paid health insurance contribution
Medical (cafeteria) plan
Paid Individual Life, Dental, Vision, and Long-Term Disability coverage
Paid Vacation time
Paid Holidays
Paid Time Off (PTO) sick days and personal days
Jury duty and bereavement benefits
Allowance for use of personal cell phone.
Performance-based bonuses
401K Match
Health savings and flexing spending options
Voluntary Short-Term Disability Coverage
Voluntary Life Insurance (Additional Coverage Options)
Additional coverage options to include spouses and families

Company

Thinix

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Thinix was to create an easy-to-use guest PC to allow hotel guests to connect to the Internet safely and reliably.

Funding

Current Stage
Early Stage
Company data provided by crunchbase