Senior System Administrator

Make sure to read the full description below, and please apply immediately if you are confident you meet all the requirements.

Technijian has proudly provided Managed IT Services for over 25 years. With locations in Irvine (USA) and India serving clients across the USA, we deliver 24 / 7 support in cloud computing, cybersecurity, and comprehensive server / networking consultation and implementation.

We are an employee-focused company that values upward mobility, continuous learning, and a supportive, growth-oriented environment.

Role Overview

We are seeking a

• Senior System Administrator
• to take ownership of critical infrastructure and managed services for our US-based clients. This is a senior, hands-on technical role for someone who is highly disciplined, detail-oriented, and committed to delivering
• accurate, high-quality results at a fast pace

You will be responsible for maintaining and improving Windows server environments, virtualized infrastructure, core applications, and network services, while also guiding junior team members when required.

Ideal Candidate Profile

You are someone who :

• Is Detail-Oriented & Analytical

You carefully analyze issues, validate assumptions, and ensure nothing is missed before implementing changes.

• Is Self-Disciplined & Results-Driven

You manage multiple tickets and projects simultaneously without sacrificing quality or documentation.

• Makes Decisive, Quality-Focused Decisions

You can make quick technical decisions within established standards, policies, and procedures.

• Is Structured & Process-Oriented

You follow and enforce best practices, SOPs, and security controls, and help improve them where needed.

• Leads Through Expertise

You are comfortable coaching and training others, providing clear direction and close follow-up when delegating.

As part of our interview process, candidates will complete a

• behavior and skills assessment
• to ensure strong alignment with the expectations and standards for this role.

Key Responsibilities

• Provide
• specialized technical support and managed services
• across Windows servers, virtualization, cloud services, and core applications for US-based clients.
• Administer and maintain
• Windows Server environments (2012, 2016, 2019 and above)
• , Active Directory, Group Policy, DNS, DHCP, file / print services, and related infrastructure.
• Support and manage
• Microsoft 365 / Office 365
• and
• G-Suite
• environments, including email, security, policies, and user provisioning.
• Manage and troubleshoot
• VMware
• environments, including virtual machines, resource allocation, and performance optimization.
• Administer
• Microsoft SQL Server
• and
• Exchange
• (on-prem and / or hybrid), including basic maintenance, backup, and troubleshooting.
• Support and maintain
• network infrastructure
• , including switches, firewalls, and routers (e.g., Cisco Meraki, Sophos), working closely with the networking team where required.
• Perform
• incident resolution, root-cause analysis, and problem management
• within defined SLAs and quality standards.
• Plan and execute
• patching, upgrades, and migrations
• , including server upgrades, OS hardening, and cloud or on-prem transitions (AWS / Azure).
• Implement and monitor
• backup, disaster recovery, and security controls
• , ensuring systems meet availability, integrity, and confidentiality requirements.
• Create and maintain
• accurate documentation
• , including runbooks, SOPs, network diagrams, and configuration records.
• When required,
• provide oversight, mentoring, and structured guidance
• to team members to ensure adherence to company policies, procedures, and timelines.
• Collaborate with US stakeholders and internal teams, communicating clearly on
• technical status, risks, and action plans

Technical Requirements

• 5+ years of hands-on experience
• as a System Administrator / Senior System Administrator / System Engineer in a managed services or enterprise environment.
• Strong experience with :
• Microsoft Windows Server
• (2012 / 2016 / 2019+) administration – 5+ years (Required)
• VMware
• administration – 5+ years (Required)
• Microsoft Exchange
• (on-prem / hybrid) – 5+ years (Required)
• Microsoft SQL Server
• – 5+ years (Required)
• IP networking
• (Routing, TCP / IP, VLANs, VPNs) – 5+ years (Required)
• Solid understanding of
• Microsoft 365 / Office 365
• , including Exchange Online, SharePoint, Teams, and security / compliance features.
• Experience with
• cloud platforms
• such as
• AWS and / or Azure
• , including migration or hybrid setups.
• Strong troubleshooting skills across servers, networks, and applications with a
• methodical, root-cause-driven approach
• Experience with
• monitoring tools
• , log analysis, and performance tuning preferred.

Behavioral & Leadership Requirements

• Highly
• organized, structured, and accurate
• in all aspects of work, including documentation and communication.
• Able to
• balance multiple simultaneous projects
• in a fast-paced, service-driven environment while maintaining high standards.
• Comfortable making
• quick, well-judged decisions
• within a clearly defined span of control.
• Strong sense of
• ownership and accountability
• for systems and outcomes.
• Willing and able to
• coach and train
• others, providing clear expectations, feedback, and follow-up.
• Willing to complete a
• behavior and skills assessment
• as part of the hiring process. xklufbp

Education & Certifications

• Bachelor’s degree
• in Computer Science, Information Technology, or a related field (Preferred).
• Relevant certifications are a plus and strongly preferred, such as :
• MCSE / MCSA / Microsoft 365 / Azure
• VMware (VCP)
• CCNA / CCNP / equivalent networking certifications
• – 5 years of networking experience (Required)

Pay : $60,000.00 - $100,000.00 per year

Benefits :
• 401(k)
• 401(k) matching
• Dental insurance
• Flexible schedule
• Flexible spending account
• Health insurance
• Health savings account
• Life insurance
• Paid time off
• Professional development assistance
• Retirement plan
• Vision insurance

Work Location : In person