Senior Systems Administrator
Tecolote Research
Join to apply for the Senior Systems Administrator role at Tecolote Research Overview We are seeking a skilled and motivated Systems Administrator to join our IT team. The ideal candidate will be responsible for managing, maintaining, and optimizing our enterprise systems and cloud infrastructure. This position requires a proactive individual with deep technical expertise across various platforms and a passion for problem-solving and innovation. Responsibilities Design, implement, and maintain secure and scalable cloud infrastructure using AWS services (EC2, S3, WatchTower, and Terraform for Infrastructure as Code). Administer Office 365 and Exchange Online environments. Administer and optimize Zscaler services, including ZIA, ZPA, and ZDX. Deploy, configure, and manage Intune for device and application management (including Windows Defender). Maintain and optimize VMware vSphere 8 environments, including vCenter, ESXi, and Horizon View. Administer Windows Server roles and services, including Active Directory, DNS, DHCP, IIS, and BitLocker. Maintain and monitor hardware systems, including Dell PowerEdge servers, PureStorage SANs, and Ubiquiti Edge/Unifi devices. Collaborate with cross-functional teams to troubleshoot and resolve technical issues. Implement and enforce IT policies and security measures to protect organizational assets. Document system configurations, processes, and procedures. Skills Required Required: Proven experience as a Systems Administrator or similar role. Hands-on experience with AWS (EC2, S3, WatchTower, Terraform). Strong knowledge of Office 365, Exchange Online, and Intune. Expertise in managing Zscaler services (ZIA, ZPA, ZDX). Experience managing VMware vSphere 8 environments (vCenter, ESXi, Horizon View). Solid understanding of Windows Server roles and services, including Active Directory, DNS, DHCP, IIS, and BitLocker. Knowledge of enterprise hardware (Dell PowerEdge servers, PureStorage SANs, Ubiquiti Edge/Unifi). Strong problem-solving skills and ability to work independently. Excellent communication and documentation skills. Preferred: Relevant certifications such as AWS Certified Solutions Architect, Microsoft Certified: Azure Administrator, VMware Certified Professional, or Zscaler certifications. Experience in scripting and automation using PowerShell, Python, or similar. Familiarity with compliance and regulatory frameworks relevant to IT (e.g., CMMC, NIST, C-SCRM). Education Bachelors degree preferred, preferably in management information systems, math or engineering. Additional degrees or certifications may substitute for years of experience. We offer competitive salaries commensurate with education and experience. Our benefits include: Comprehensive health, dental, life, long and short-term disability insurance 100% Company funded Retirement Plans Generous vacation, holiday and sick pay plans Tuition assistance About Tecolote Research Tecolote Research is a private, employee-owned corporation where people are our primary resource. Our investments in technology and training give our employees the tools to succeed, and our high employee retention rate adds value to our clients. Apply now to connect with a company that invests in you. View all career opportunities: Follow us on social media: LinkedIn | X @TecoloteInc | Facebook [EOE/M/F/Disability/Veterans] Seniority level Mid-Senior level Employment type Full-time Job function Information Technology Industries Business Consulting and Services Space Research and Technology #J-18808-Ljbffr Tecolote Research
- ...Senior Systems Administrator Everforth ECS Federal is seeking a Senior Systems Administrator to support a mission-focused federal IT program in Washington DC. Please Note: This position is contingent upon contract award. Join Everforth ECS Federal to keep secure...SeniorContract work
- ...Summary Senior Systems Administrator Arlington, VA Are you ready to enhance your skills and build your career in a rapidly evolving business climate? Are you looking for a career where professional development is embedded in your employer’s core culture? If so, Chenega...Senior
- ...Employment Type Full Time, Senior-level Department Legal/IT Overview CGS is seeking a Senior Systems Administrator to join our team supporting a wide-ranging technical support initiative for a large Federal agency. CGS brings motivated, highly skilled, and creative people...SeniorFull timeContract workFor contractorsWork at office
- ...Employment Type Full Time, Senior-level Department Legal/IT Overview CGS is seeking a Senior Systems Administrator to join our team supporting a wide-ranging technical support initiative for a large Federal agency. CGS brings motivated, highly skilled, and creative people...SeniorFull timeContract workFor contractorsWork at office
$92.3k - $166.85k
...faster, better‑informed decisions using trusted data at scale. Leidos Digital Modernization sector is seeking an experienced Senior System Administrator to support the delivery, enhancement, and adoption of enterprise data and analytics products used across multiple DoD...Senior- ...Education: HS/GED Required Experience: 7–10+ years of experience in system administration, with advanced experience in enterprise environments.... ...technical support and mentoring to junior staff. The Senior System Administrator collaborates with IT leadership and cross...SeniorTemporary workFlexible hours
- ...Modern Technology Solutions, Inc. (MTSI) is seeking a highly-skilled Senior Systems Administrator to join our team. This individual will be responsible for developing, maintaining, and securing enterprise systems, applications, and infrastructure. The role will lead efforts...SeniorWork at office
$80.52k - $161k
...Specialist Job Type Experienced Seniority Level Mid-Senior Level Currency... ...Overview Xerox is seeking a highly skilled Senior System Administrator to support the United States Air Force (USAF) Managed Print...SeniorFull timeTemporary workInterim roleWork at officeLocal areaMonday to Friday- ...Overview Employment Type: Full Time Department: Legal/IT We are seeking a Relativity Sr. Systems Administrator to join our team! You will handle a variety of projects to support and improve the organization’s network systems. CGS brings motivated, highly skilled, and creative...SeniorFull timeWork at officeFlexible hours
- ...Senior Systems Administrator II Employment Type: Full Time, Senior-level CGS is seeking a Senior Systems Administrator to join our team supporting a wide-ranging technical support initiative for a large Federal agency. CGS brings motivated, highly skilled, and...SeniorFull timeContract workFor contractorsWork at officeFlexible hours
$92.3k - $166.85k
Leidos Inc is looking for a Senior Systems Administrator to join their IT operations team. You will manage, support, secure, and optimize high-performance systems critical to our defense clients. The position requires technical expertise and the ability to mentor junior...Senior- Syneren Technologies Corporation is looking to hire a Sr. Azure Systems Administrator in Alexandria, Virginia. This pivotal role requires managing Azure cloud and On-Prem infrastructure to ensure system security and resilience. Candidates must possess extensive experience...Senior
$500 per month
...services to its customers in the following areas: Business Systems Services; Business Intelligence; Data Analytics and... ...Enterprise Horizon Consulting Group is seeking a highly skilled Senior Okta Systems Administrator to ensure the stable, secure, and optimized operation of...SeniorFull timeContract workTemporary workLocal areaRemote work- RAND is seeking a Classified Systems Administrator, III to manage classified servers and networks in Washington D.C. This role involves ensuring the operational effectiveness of various IT systems and requires a strong technical background in either Windows or Linux environments...Senior
- Integrated Computer Solutions, Inc. is seeking a Senior System Administrator in Arlington, Virginia. This position involves providing Tier I/II/III support within classified environments, ensuring operational performance and security of critical systems. The ideal candidate...Senior
- E-logic is seeking a Senior Systems Administrator to provide critical web infrastructure and application server support for active federal web applications. You will be responsible for the continuous availability (24/7 operational target) of systems hosted on secure Internet...Senior
- ...Ensures the stable operation of the in-house computer software systems and network connections. This includes planning, developing,... ...resolving issues with various software. Applicable application administrator certifications per the DLA Approved Cybersecurity Computing Environment...SeniorLocal areaRemote work
$143k - $161k
Position Senior Systems Administrator Requisition/Position Number SSA Summary We are looking for a skilled Systems Administrator to support day‑to‑day operations across server, storage, network, client/server, and virtualized systems, troubleshoot complex technical issues...SeniorFull timeContract work$120k - $135k
Job Description Everforth ECS is seeking a cleared Senior Systems Administrator (Top Secret Cleared) for our Washington, DC office. The role involves secure system administration, endpoint management, user support, patching, monitoring, documentation, and operational sustainment...SeniorWork at officeLocal area- Position Overview JDEIS databases and systems must stay current, backed up, and available to support doctrine and education work. The Senior Systems Administrator provides database and systems administration across JDEIS applications, including backups after major updates...SeniorTemporary workFlexible hours
- ...landscape and succeed in their pursuit to protect people and critical assets. The Chinook Program is currently seeking a Senior Systems Administrator. As a senior member of our IT operations team, you will play a key role in managing, supporting, securing, and...SeniorContract work
$130k - $175k
...than the organization, leveraging staff and institutional resources in service to our country. About You You are a Senior‑Level Systems Administrator with experience designing, implementing, securing, and supporting enterprise IT infrastructure in commercial, government...SeniorFor contractors$65k - $85k
We are seeking a skilled and self-driven Systems Administrator with strong expertise in cloud services, Microsoft enterprise technologies, virtualization, and modern security platforms. The ideal candidate will have hands‑on experience with AWS, Microsoft 365/Intune, VMware...SeniorFull timeTemporary workFlexible hours- ...Overview Senior Discovery IT System Administrator — Employment Type: Full-Time, Executive-Level. Department: Legal. CGS is seeking a dedicated Senior Discovery IT System Administrator to join a fast-paced and hard-working team to assist with any legal accounts. As a Senior...SeniorFull timeFor contractorsFlexible hours
$116k - $134k
TekSynap is hiring a Systems Administrator, Labs based in Washington, D.C. The role involves managing multi-user computer systems and ensuring operational efficiency. Key qualifications include an active TS/SCI + CI Poly clearance and significant experience in system security...Senior- UIC Arctic Response Services, LLC is looking for a Systems Administrator to support our Nautical contract in Arlington, VA. The candidate will oversee cloud infrastructure maintenance and optimization and ensure compliance with DoD standards. The role requires 10 years...SeniorContract work
$164.73k - $174.4k
DLH Corporation is seeking a Cloud Systems Administrator in Washington, DC to support the design, administration, and optimization of cloud-based infrastructure environments. You will ensure the reliability, security, and performance of cloud systems while managing virtual...Senior- Njvc LLC is seeking a Senior Systems Administrator located in Arlington, VA. The ideal candidate will lead the administration and optimization of Windows and Linux environments while ensuring compliance with security standards and protocols. The role requires a Bachelor...Senior
- A government solutions provider based in Arlington, Virginia, is seeking a Senior Systems Administrator. The successful candidate will manage Relativity databases and collaborate with federal agencies to ensure technical support. Applicants should have significant experience...Senior
- E-Logic, Inc. is seeking a Senior Systems Administrator in Washington, D.C. to provide crucial web infrastructure support for federal applications. Responsibilities include the administration of IIS and Windows Server environments, ensuring compliance with government protocols...Senior
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Systems Administrator. Be the first to apply!
- server administrator Arlington, VA
- IT administrator Arlington, VA
- systems administrator Arlington, VA
- microsoft systems administrator Arlington, VA
- remote systems administrator Arlington, VA
- enterprise administrator Arlington, VA
- computer systems administrator Arlington, VA
- system admin Arlington, VA
- application system administrator Arlington, VA
- IT infrastructure administrator Arlington, VA

