Top 69 System administrator Jobs in O'fallon, Il

Systems Administrator
TWM Engineering & Geospatial Services —Swansea, IL
- $65,000 - $80,000 a year
- Overtime
- System design
- Mid-level
- Office
- Health savings account
- Paid holidays
Systems Administrator / Systems Infrastructure Lead
Computer World Services —Scott AFB, IL
- $115,000 - $130,000 a year
- Full-time
- Residential
- Senior level
Information Technology/Assurance (IT/IA) Specialist II
General Dynamics Information Technology —Mascoutah, IL
- $97,968 - $127,880 a year
- Ability to lift 50 pounds
- Travel
- Experience equivalent to degree accepted
Mobile Device Systems Administrator Senior
General Dynamics Information Technology —St. Louis, MO
- $129,813 - $138,000 a year
- System design
- Bachelor's degree
- Experience equivalent to degree accepted
- Paid time off
- 401(k) matching
Cloud System Admin 1 (Junior)
UNCOMN —Scott AFB, IL
- $62,000 - $71,000 a year
- Azure
- Java
- Databases
- Paid holidays
- Health insurance
IT Specialist (PLCYPLN)
US Defense Information Systems Agency —Scott AFB, IL
- $115,475 - $157,818 a year
- Part-time
- Background check
- Computer Science
- Customer service
3d
IT CYBERSECURITY SPECIALIST (INFOSEC)
US Defense Information Systems Agency —Scott AFB, IL
- $100,931 - $141,078 a year
- Part-time
- Hybrid work
- Background check
- Pass drug screening
- Residential
8d
System Administrator
SogoTrade —St. Louis, MO
- On call
- Azure
- Mid-level
- Office
IT Systems Administrator
River City Casino & Hotel —St. Louis, MO
- From $60,000 a year
- Full-time
- Computer Science
- Customer service
- Bachelor of Science
- Health insurance
- Paid time off
14d
SENIOR SYSTEMS ENGINEER - INFORMATION TECHNOLOGY - FT DAYS
ANDERSON HOSPITAL —Maryville, IL
- Weekends as needed
- Computer Science
- Hospital
- Mid-level
Systems Administrator
General Dynamics Information Technology —St. Louis, MO
- $97,968 - $132,250 a year
- Weekends as needed
- 5 years
- Bachelor of Science
- Bachelor's degree
- Paid time off
- 401(k) matching
RHEL/Windows System Administrator - Fulltime/Permanent
Fabergent —Belleville, IL
- Full-time
- Management
- Bachelor of Science
- 3 years
Quick Apply
IT Support Specialist - Travel
iSuite —Granite City, IL
- $70,000 - $80,000 a year
- Computer science
- Computer Science
- Mid-level
- Paid parental leave
- Paid holidays
Quick Apply
1d
Administrator, Server
Spire Inc —St. Louis, MO
- Overtime
- Computer science
- Computer Science
- Mid-level
System Administrator
Chenega Security International, LLC —St. Louis, MO
- Full-time
- Microsoft Access
- Microsoft Outlook
- Computer Science
Cybersecurity and Network Admin I
TOUCHETTE —Collinsville, IL
- $32.00 - $43.27 an hour
- Weekends as needed
- Computer Science
- Research
- Ability to climb stairs
Quick Apply
AWS System Administrator
CACI —St. Louis, MO
- $75,200 - $158,100 a year
- Full-time
- Computer science
- Computer Science
- 5 years
- Health insurance
Systems Administrator
Weissman —St. Louis, MO
- Weekends as needed
- Mid-level
- Analysis skills
- Bachelor's degree
- Paid parental leave
- Disability insurance
Network Administrator (SATCOM)
C3EL —Scott AFB, IL
- Weekends as needed
- Mid-level
- High school diploma or GED
- 2 years
Senior Technical Analyst & System Administrator - Wealth Management
Commerce Bank —Clayton, MO
- $93,000 - $109,000 a year
- Full-time
- 5 years
- Salesforce
- Office
- Health insurance
- Dental insurance
4d

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system administrator jobs near o'fallon, il

Systems Administrator

TWM Engineering & Geospatial Services -
Swansea, IL

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Job Details

Full-time
$65,000 - $80,000 a year

Benefits

Health savings account
Paid holidays
Health insurance
Dental insurance
401(k)
Flexible spending account
Tuition reimbursement
Paid time off
Employee assistance program
Vision insurance
401(k) matching
Employee stock ownership plan
Professional development assistance
Flexible schedule
Life insurance
Referral program
Retirement plan

Qualifications

Technical documentation
CCNA
Computer management
Mentoring
Desktop administration
IT department experience

Full Job Description

TWM is seeking an experienced IT professional to maintain, administer, and enhance information technology infrastructure and services across all TWM locations. This position will have a primary focus on network infrastructure while also administering systems, virtualization, storage, backup, security, and overall infrastructure operations.

The ideal candidate is a hands-on IT professional with experience administering production network and server infrastructure who enjoys solving technical challenges, improving infrastructure reliability, and maintaining secure and reliable technology systems. This role works closely with the IT Manager while independently managing day-to-day infrastructure operations, collaborating with external technology partners, and helping develop the IT Specialist's infrastructure skills and knowledge.

Experience Level: 4+ years of progressive IT experience, including hands-on administration of production network and/or server infrastructure in a business environment

Schedule: Full-time, 40 hours/week, with the possibility of overtime

Location: Based in Swansea, IL

Salary: $65,000-$80,000 annually – salary is commensurate with experience

This position is intended for an experienced infrastructure professional or an advanced IT technician who is ready to transition into a Network & Systems Administrator role. Candidates should have experience administering production network or server environments and be comfortable independently managing assigned infrastructure responsibilities while collaborating with the IT Manager.

Essential Job Functions:

Maintain, troubleshoot, administer, and improve enterprise network infrastructure across multiple office locations, including switching, firewalls, wireless connectivity, VPNs, and related technologies.
Configure and troubleshoot network services including TCP/IP, VLANs, DHCP, DNS, and connectivity issues.
Monitor network and system performance and proactively identify and resolve issues.
Maintain network documentation, diagrams, standards, and procedures.
Administer and maintain Windows server infrastructure, Active Directory, directory services, operating systems, and cloud-based technologies.
Administer virtualization platforms, storage environments, backup solutions, and disaster recovery processes.
Plan and perform infrastructure maintenance including server patching, upgrades, monitoring, and lifecycle management.
Serve as the primary escalation resource for Tier 2/3 infrastructure-related issues involving servers, networking, virtualization, and enterprise systems.
Administer endpoint management, software deployment, and device administration processes.
Collaborate with the IT Manager, IT Specialist, and external technology partners to design, implement, and improve infrastructure solutions.
Execute infrastructure projects and technology improvements while collaborating with the IT Manager on future planning initiatives.
Develop and maintain technical documentation and operational procedures.
Provide technical guidance and knowledge sharing with the IT Specialist to support continued infrastructure skill development.

Qualifications Desired:

Proven experience as a Network Administrator, Systems Administrator, Infrastructure Administrator, or similar role
Strong understanding of enterprise networking concepts, including:
TCP/IP
VLANs
Routing and switching
DHCP and DNS
Wireless networking
VPN technologies
Experience administering enterprise network infrastructure and Microsoft-based server environments.
Hands-on experience administering virtualization platforms, storage, backup solutions, and disaster recovery processes.
Strong troubleshooting and problem-solving skills.
Ability to prioritize tasks, manage projects, and work independently with minimal supervision.
Excellent written and verbal communication skills.
CCNA certification or equivalent networking experience preferred.
Experience with enterprise networking, firewall, virtualization, backup, disaster recovery, and cloud-based technologies preferred.
Demonstrated ability to independently troubleshoot and resolve production network and server infrastructure issues.
Experience supporting business-critical production environments with responsibility for maintaining and troubleshooting infrastructure services.

Benefits Summary:

Competitive salary and benefits are offered, including exceptional bonus incentives. Starting salary is dependent upon the candidate’s knowledge, skills, and abilities. Regular salary reviews and non-contributory Employee Stock Ownership Plan, insurance, 401K, holidays, Paid Time Off, flexible schedules, and more. For a comprehensive list of benefits, please visit our benefits page.

TWM is an established, growth-oriented consulting firm offering civil and structural engineering, land surveying, and other geospatial services. A 100% ESOP-owned company and Top Workplace award recipient, TWM’s structure allows you to reap the rewards of your hard work. Each employee becomes an owner through a gift of company stock and has a vested interest in seeing the company succeed. We are different from most employers—and from other ESOP companies. Come experience what makes TWM unique!

Pay: $65,000.00 - $80,000.00 per year

Benefits:

401(k)
401(k) matching
Dental insurance
Employee assistance program
Flexible schedule
Flexible spending account
Health insurance
Health savings account
Life insurance
Paid time off
Professional development assistance
Referral program
Retirement plan
Tuition reimbursement
Vision insurance

Work Location: In person

Apply Now

Refine Your Search

system administrator jobs in o'fallon, il

Systems Administrator

Systems Administrator / Systems Infrastructure Lead

Information Technology/Assurance (IT/IA) Specialist II

Mobile Device Systems Administrator Senior

Cloud System Admin 1 (Junior)

IT Specialist (PLCYPLN)

IT CYBERSECURITY SPECIALIST (INFOSEC)

System Administrator

IT Systems Administrator

SENIOR SYSTEMS ENGINEER - INFORMATION TECHNOLOGY - FT DAYS

Systems Administrator

RHEL/Windows System Administrator - Fulltime/Permanent

IT Support Specialist - Travel

Administrator, Server

System Administrator

Cybersecurity and Network Admin I

AWS System Administrator

Systems Administrator

Network Administrator (SATCOM)

Senior Technical Analyst & System Administrator - Wealth Management

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