System Administrator
$60k - $85kCredit Control, LLC.
Build Your Future with an Award-Winning Team at Credit Control! What if you could grow your career with a company that’s been recognized seven consecutive years (2019-2026) as a Best Place to Work in Collections? At Credit Control, our success starts with our people. We believe driven, dedicated team members are the foundation of everything we achieve—and we’re committed to rewarding that dedication with competitive pay, outstanding benefits, and meaningful growth opportunities. About the Role We are seeking a highly skilled and motivated System Administrator to join our IT Operations team at our Earth City, MO headquarters. This is a 100% on-premise position, ideal for a hands-on professional with strong system administration experience, particularly in on-site infrastructure and enterprise systems. You’ll play a key role in managing our internal systems, supporting users, and contributing to infrastructure and security initiatives. The right candidate will be comfortable in a dynamic environment with varied responsibilities—from server management to application support. This is an in-office position: Location: 3300 Riders Trail South, Suite 500, Earth City, Missouri63045 Key Responsibilities Maintain, monitor, and optimize physical and virtual server infrastructure (Windows/Linux). Administer Active Directory, DNS, DHCP, Group Policy, and related core services. Support and improve virtualization environments (VMware, Hyper‑V). Perform routine patching, backups, and system health monitoring. Provide Tier 2/3 support for service desk escalations. Create and maintain system documentation and SOPs. Assist with endpoint management and software deployment. Coordinate with security teams on vulnerability remediation and incident response. Participate in after-hours upgrades, maintenance windows, and on-call rotations. Requirements 5+ years of experience in system administration roles in enterprise environments. Bachelor’s degree in Computer Science or related field, OR relevant certifications in lieu of a degree. Preferred Certifications (One or more): CompTIA Server+, Network+ Microsoft Certified: Windows Server Hybrid Administrator Associate Cisco CCNA VMware Certified Professional (VCP) Red Hat Certified System Administrator (RHCSA) Technical Skills Required: Windows Server & Linux administration Virtualization (VMware, Hyper‑V) Networking fundamentals (VLANs, TCP/IP, Firewalls) Backup and disaster recovery systems Scripting (PowerShell, Bash) Preferred/Bonus Experience With Appgate SDP (or similar ZTNA solutions) Microsoft 365 administration Azure AD Sync / Hybrid identity ConnectWise Service Manager or other RMM platforms Endpoint protection (SentinelOne) Vulnerability management (Rapid7) Cisco Umbrella PAM tools like CyberArk or similar Schedule Monday–Friday, standard 8-hour shifts Availability for occasional nights/weekends for after-hours support, upgrades, or project work Salary: $60,000 – $85,000 annually Benefits Flexible Schedule Medical/Dental/Vision Life Insurance Paid Time Off Paid Vacation Time Paid Holidays Paid Bereavement Paid Training 401k with company match Annual Retention Bonus Professional Development Grant Program Employee Assistance Program Ongoing Contests & Prizes Annual Company Events Company Referral Program ADP Lifemart Employee Discounts Work Environment This is a fully on-premise role located at: 3300 Rider Trail South, Suite 500, Earth City, MO 63045 You’ll be working in a secure, team-oriented, and fast-paced environment that values reliability, accountability, and innovation. Equal Opportunity Employer Credit Control is an Equal Opportunity Employer. We value diversity and are committed to creating an inclusive workplace for all employees. #J-18808-Ljbffr Credit Control, LLC.
$70k - $90k
...technology that supports our manufacturing, engineering, and R&D operations matters to every one of them. Position Summary The Systems Administrator is a hands‑on generalist responsible for the day-to-day health of Natoli’s servers, network, endpoints, and cloud services,...SuggestedWork at officeRemote workWorldwide- Sr. Linux Systems EngineerJob#: 3046574Job Description:Sr. Linux Systems EngineerPosition Summary:We are seeking a Sr. Linux Systems Engineer to support the migration of a Windows-based system to a Linux desktop environment supporting a connected/edge device platform. This...Suggested
- Natoli Engineering Company, Inc. is seeking a Systems Administrator to manage servers, network, endpoints, and cloud services. You will support office, shop floor, and remote sites, partnering with the IT Manager on projects while handling day-to-day operations. This role...SuggestedWork at officeRemote work
- Credit Control, LLC. seeks a seasoned System Administrator for our Earth City, MO headquarters. This 100% on‑premise role focuses on hands‑on server, AD, and security initiatives within an enterprise IT landscape. You will manage Windows/Linux servers, virtualization,...Suggested
- Description Solerity is seeking a ISDDC System Administrator (Tester). Verification & validation of software via automated & manual functional & non-functional testing Test case configuration, creation, maintenance, and execution Defect reporting, triage, and confirmation...SuggestedFor contractorsFlexible hours
- Solerity is seeking an ISDDC System Administrator (Tester) to lead verification and validation across multi-environment systems. You will configure and execute test cases, report defects, and plan test cycles for software releases, while communicating status to stakeholders...
$80k - $104k
System Administrator Company: Tapestry - G0G Tapestry Solutions, A Boeing Company, brings over 30 years of industry experience designing, implementing, training, and supporting high-quality, cost-effective information technology and business intelligence solutions...WorldwideRelocationVisa sponsorshipWork visaRelocation packageFlexible hoursShift work$80k - $104k
...System AdministratorTapestry Solutions, a Boeing Company, is seeking a System Administrator in Hazelwood, MO for the Department of Navy Tomahawk Land-Attack Missile program. The Tomahawk program is expanding to include additional US and foreign customers and will remain...Visa sponsorshipWork visaFlexible hours- We are looking for a Systems Administrator to join our team! ON-SITE Role, not a remote position WE OFFER GREAT BENEFITS! A trimester (four-month period) monetary incentive based on meeting standard operating margin and inventory turn goals while meeting delivery and...Permanent employmentTemporary workWork experience placement
$75k - $90k
System Administrator II The University of Alabama at Birmingham General Responsibilities The Office of Research is seeking a System Administrator II to support institutional research reporting, analytics, and data management initiatives. This position serves a key role...Work experience placementWork at officeRemote workShift workDay shift$164.9k - $223.1k
Senior Systems EngineerCompany:The Boeing CompanyBoeing, Defense, Space, and Security (BDS) is seeking motivated, talented Senior Systems Engineer to join our Systems Engineering team located in Saint Charles, Missouri. Due to expanding business, we are looking for Engineers...Permanent employmentFull timeContract workWork experience placementInterim roleRelocationVisa sponsorshipWork visaFlexible hoursShift work$52 - $55 per hour
...Job Title: Sr. Systems Integration Engineer Job Description This role focuses on software-centric systems engineering for complex electrical and software-controlled systems. You will translate system needs into code-based requirements and software requirement specifications...Permanent employmentTemporary workWork at officeRemote work- Leidos is seeking a Junior System Administrator to support the DISA GSM-O contract at Scott AFB, IL. The role focuses on protecting information systems and maintaining secure, reliable multi-user computer environments. The candidate will work with customers, document procedures...Contract work
- Leidos is seeking a Junior System Administrator to support DISA's GSM-O contract at Scott AFB, Illinois. The role requires independent work to maintain multi-user systems and coordination with customers and other admins. Responsibilities include policy communication, ticket...Contract workInterim roleWeekend work
$50.7k - $91.65k
Description Leidos is seeking a candidate to fill a Junior System Administration position supporting DISA's GSM-O contract at Scott AFB, IL. The System Administrator is responsible for protecting DISA’s information and information systems from unauthorized access, use,...Contract workLocal areaImmediate startWeekend work- Systems Engineer (Experienced or Lead)Company:The Boeing Company is seeking a Systems Engineers to join one of our St. Louis, MO (Berkeley, Hazelwood, Saint Charles) based teams. Our St. Louis based teams are responsible for development, production, trainers, and sustainment...Full timeWork experience placementInterim roleCurrently hiringImmediate startRemote workRelocationVisa sponsorshipWork visaFlexible hoursShift work
$41.01k - $53.32k
...Systems Engineer InternLeonardo DRS Land Systems is seeking multiple Summer Systems Engineer Interns for our Bridgeton, MO facility. These interns will help our systems engineering (SE) team meet the technical performance requirements on complex system development programs...Contract workWork experience placementInternshipSummer internshipWork at officeLocal areaFlexible hours$164.9k - $223.1k
...Senior Systems Engineer Company: The Boeing Company Boeing Defense, Space & Security (BDS) is seeking a Senior Systems Engineer (Level 5) to join the System Engineering Integration & Test (SEIT) Team in Saint Charles, MO . Boeing Phantom Works is building...Permanent employmentInterim roleImmediate startRelocationVisa sponsorshipWork visaFlexible hoursShift work$93.12k - $125.71k
...Senior Systems EngineerLocation: Bridgeton, MO, US, 63044 Job ID: The Leonardo DRS Land Systems business is a recognized leader in the design and integration of complex technologies into new and legacy systems and platforms for global military and commercial customers....Contract workWork experience placementFor subcontractorLocal areaFlexible hours$93 per hour
Must be able to obtain a Secret Clearance. US Citizenship Required. 100% on-site. Company is seeking motivated, talented Systems Engineers to join our Systems Engineering team located in Saint Charles, Missouri. Due to expanding business, we are looking for Engineers-...Contract workWork experience placementShift work$19 - $21 per hour
...3 + years Desktop Break/Fix Experience - 3 years + exp Imaging Experience and 3 + years Windows 10 Certification/Experience - and 3 + years Operating Systems - Microsoft Windows exp of 3 + years Productivity Software - Imaging Software with 3 years exp...Contract work$19 - $21 per hour
...Support Experience - and 3 + yearsDesktop Break/Fix Experience - 3 years + expImaging Experience and 3 + yearsWindows 10 Certification/Experience - and 3 + yearsOperating Systems - Microsoft Windows exp of 3 + yearsProductivity Software - Imaging Software with 3 years exp...- ...of tomorrow and encouraging them to contribute to an ever more responsible approach to our business. Process Engineer- Production Systems Oral Solid DoseVirbac Animal Health is seeking a Process Engineer for our Industrial Operations teams. Must have experience in Oral...Full time
$93k - $125k
...Systems Test EngineerThe Systems Test Engineer is responsible for designing, planning, and executing systems-level testing for complex products, systems, and subsystems that may include electrical, mechanical, hydraulic, and software components. This role involves leading...Permanent employmentContract workRemote workWeekend work- A leading technology solutions provider seeks a Reliability, Maintainability & System Health (RM&SH) Engineer for a Weapons Program in Saint Charles, Missouri. This role requires a Bachelor's degree in Engineering and 9+ years of experience. Responsibilities include analyzing...Work at office
$93 per hour
A technology solutions provider is seeking motivated Systems Engineers to join their team in Saint Charles, Missouri. This on-site role involves applying interdisciplinary approaches to develop and verify system solutions for military aircraft. Candidates must possess a...Hourly pay- Leonardo DRS Land Systems in Bridgeton, MO is seeking multiple Summer Systems Engineer Interns to assist the systems engineering team in meeting performance requirements for complex development programs. Interns gain meaningful hands-on experience and exposure to an interdisciplinary...Summer internshipFlexible hours
$46.7k - $58.7k
...including maintenance of hardware and software inventory Delivers administration and support of telecommunications (corporate VoIP/Contact... ...mobile devices, etc.) Meets corporate SLA’s for IT Helpdesk ticket system and projects Works directly with all levels of employees to...Full timeTemporary workRemote workFlexible hours- ...meters, light sources, fiber certification equipment, and visual fault locators Understanding of single-mode and multi-mode fiber optic systems Familiarity with structured cabling standards and best practices Ability to read network diagrams, splice schematics, blueprints,...Hourly payFull timeFor contractorsFlexible hours
- Boeing is seeking a Senior Systems Engineer in Saint Charles, Missouri for an onsite role within the Defense, Space, and Security division. The team leads a cross-disciplinary effort across engineering disciplines to solve complex problems and deliver high-tech weapon systems...
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