Senior Systems Administrator
$158k - $190kTekSynap
Overview We are seeking a Senior Systems Administrator to join our Task Order proposal on the Defense Intelligence Agency’s Solutions for the Information Technology Enterprise III (SITE III). The Senior Systems Administrator maintains smooth operation of multi‑user computer systems, including coordination with network engineers. TekSynap is a fast‑growing high‑tech company that understands the pace of technology today and the need for a comprehensive, well‑planned information management environment. “Technology moving at the speed of thought” embodies these principles – the ability to nimbly utilize the best that information technology offers to meet the business needs of our Federal Government customers. We offer full‑time employees a competitive benefits package that includes health, dental, vision, 401(k), life insurance, short‑term and long‑term disability plans, vacation time, and holidays. Responsibilities Monitors and manages system resources, including CPU usage, disk usage, and response times to maintain operating efficiency. Performs systems security administration functions, including creating user profiles and accounts. Sets up administrator accounts, maintains system documentation, tunes system performance, installs system‑wide software, and allocates mass storage space. Interacts with users and evaluates vendor products. Recommends purchase of hardware and software, coordinates installation, and provides backup recovery. Develops and monitors policies and standards for allocation related to the use of computing resources. Might be assigned responsibility for less experienced staff. Required Qualifications Active TS/SCI + CI Poly clearance Active CompTIA Security+ At least one advanced platform certification: RHCSA RHCE or equivalent Windows certification Minimum 8–12 years of progressively responsible systems administration experience. Bachelor’s degree in Computer Science, Information Systems, Engineering, or related technical discipline (or equivalent experience). Demonstrated experience supporting enterprise, multi‑user environments in DoD or Intelligence Community settings preferred. Experience operating in classified environments. Work Environment and Physical Demands Location: Aurora, CO with occasional travel to Colorado Springs, CO Type of environment: Varies Noise level: Low Work schedule: Normal work hours (average 8 hours a day, 40 hours per week) within standard operational hours 0600‑1800, Monday‑Friday, excluding Federal holidays. May be requested to work evenings and weekends to meet program and contract needs. Amount of travel: 20% Physical Demands The employee is regularly required to use hands to grip, handle, or feel; reach with hands and arms; and talk or hear. The employee is regularly required to stand; walk; sit; climb or balance; and stoop, kneel, crouch, or crawl. The employee is regularly required to lift up to 10 pounds. The employee is frequently required to lift up to 25 pounds and up to 50 pounds. Vision requirements include close sight, distance sight, peripheral vision, depth perception, and the ability to adjust focus. Work Authorization / Security Clearance U.S. Citizenship Active TS/SCI + CI Poly clearance Wage Information Target salary range: $158,000.00 – $190,000.00. The salary range displayed is an estimate and will be determined on several factors regarding the individual’s particular combination of education, knowledge, skills, competencies and experience, as well as contract parameters and organizational requirements. Equal Employment Opportunity In order to provide equal employment and advancement opportunities to all individuals, employment decisions will be based on merit, qualifications, and abilities. TekSynap does not discriminate against any person because of race, color, creed, religion, sex, sexual orientation, gender identity, protected veteran status, national origin, disability, age, genetic information or any other characteristic protected by law (referred to as “protected status”). This nondiscrimination policy extends to all terms, conditions, and privileges of employment as well as the use of all company facilities, participation in all company‑sponsored activities, and all employment actions such as promotions, compensation, benefits, and termination of employment. TekSynap is committed to ensuring that our online application process provides an equal employment opportunity to all job seekers, including individuals with disabilities. If you believe you need a reasonable accommodation in order to search for a job opening or to submit an application, please contact View email address on click.appcast.io for assistance. #J-18808-Ljbffr
$60k - $90k
...The Senior Systems Administrator acts as the second tier of support for Meriplex’s Technical Assistance Center (TAC) and reports to a TAC Manager. In addition to working within the TAC’s ticketing system to resolve Level 2 end user issues, this role acts as the escalation...Senior- ...Leidos is seeking an IT Engineer with Microsoft Enterprise Systems Administrator experience to join our team in support of a Federal Intelligence Agency contract located in Alice Springs, AUS. Responsibilities Provide Tier 2 support maintaining multiple large enterprise...SeniorContract workTemporary workRemote work
$155k - $175k
...agility of a small company with the impact of a big mission. Riverstone is seeking a motivated, career, and customer‑oriented Systems Administrator Level 2 to join our team in Aurora, CO. This position is onsite. Primary Responsibilities: Provide support for...SeniorHourly payContract workWork experience placement$115k - $120k
...Senior System Administrator Job Locations: US-AZ-Phoenix | US-CO-Lakewood | US-Loveland, CO | US-CA-Folsom. Overview Edgewater Federal Solutions is seeking a Senior Systems Administrator to join our team. The Senior Systems Administrator will play a pivotal role in our...SeniorContract workFlexible hours$100k - $115k
...technical planning, testing, and execution of complex system upgrades, including operating systems,... ...advisories) and ensure timely remediation. Provide senior‑level technical support and guidance to system administrators, serving as an escalation point for complex patching...Senior$125k - $155k
...Job Description Job Description Overview We are seeking a Senior Systems Administrator to join our Task Order proposal on the Defense Intelligence Agency’s Solutions for the Information Technology Enterprise III (SITE III). The Senior Systems Administrator maintains...SeniorFull timeContract workTemporary workLocal areaMonday to FridayWeekend workAfternoon shift- ...Are you ready to be the technical backbone of a mission that matters? Leidos is seeking a highly motivated Senior Systems Administrator/Help Desk Engineer to support a cutting‑edge Agile software development program, Chinook, for an Intelligence Community customer. In...SeniorContract workShift workDay shiftAfternoon shift
- ...excellence. Position Requirements: Provides support for implementation, troubleshooting, and maintenance of Information Technology (IT) systems. Manages IT system infrastructure and any processes related to these systems. Provides support to IT systems, including day-to-day...Flexible hours
$7.5k
...Job Brief Implementation support, IT systems maintenance and troubleshooting, optimizing system operations Job Description We are searching for talented individuals who provide intelligence, engineering, and mission management expertise for the Government. This program...Work experience placementImmediate startFlexible hours$100k - $110k
...Job Summary The Denver Broncos are seeking an experienced Senior Network Administrator to lead the delivery of secure, resilient, and high-performing... ..., and sound judgment. You will partner closely with Systems Administration, Cybersecurity, and Game Technology teams to...SeniorFull timeRemote work- ...established and growing organisation is seeking an experienced Senior Salesforce Administrator to take ownership of a complex Salesforce environment and... ...transformation initiatives, platform integrations, and system enhancements. Participate in requirements gathering,...SeniorFlexible hours
$95k - $116k
A government contractor is hiring a Linux Applications Administrator in Denver, Colorado. The role involves supporting Linux-hosted applications and overseeing lifecycle management, including setup, deployment, and troubleshooting. Ideal candidates will have 5+ years of...SeniorFor contractors$104k - $111k
...Overview We are seeking a Systems Administrator to join our Task Order proposal on the Defense Intelligence Agency’s Solutions for the Information Technology Enterprise III (SITE III). The Systems Administrator maintains smooth operation of multi‑user computer systems,...Contract workTemporary workMonday to FridayWeekend workAfternoon shift$80.75k - $109.25k
...safety, quality, and professional growth, offering career advancement opportunities for employees. Position Summary The IT Systems Administrator manages and supports IME’s IT infrastructure across on‑premises and cloud environments, ensuring system reliability, security...Full timeFor contractorsWork at officeLocal areaRemote workVisa sponsorshipWork visa$99.3k - $158.69k
The Patch Management Specialist, Senior oversees enterprise patch management strategy and execution for desktops, laptops, and remote endpoints... ..., and risk reduction, using them to drive accountability with system owners. Required Qualifications Bachelor’s degree in IT,...SeniorContract workWork at officeRemote work$120k - $150k
...- $150,000 / year TL;DR: Kharon is seeking a full‑time Senior Salesforce Administrator based in Denver. This role requires you to be in office at... ...optimization of our CRM data architecture, ensuring our core systems are refined and primed to support our next phase of...SeniorFull timeWork at officeImmediate startFlexible hours3 days per week- ...Job Summary and Responsibilities As an IT PACS Systems Administrator, you will be a lead technical expert, responsible for advanced management, maintenance, troubleshooting, and optimization of our PACS and enterprise imaging infrastructure. You will oversee system health...
$94.43k - $202.75k
...recent experience managing and maintaining large, enterprise systems in complex, matrixed organizations, with at least three years... ...ServiceNow and hold current certifications in ServiceNow System Administration (CSA) and at least one of the following is preferred: CIS -IT...SeniorFull timeWork experience placementH1bLocal area$80.75k - $109.25k
...strengthen the partnerships that move our work forward. Join a team where your expertise fuels the systems that keep communities running! Position Summary The IT Systems Administrator manages and supports the organization’s IT infrastructure across on-premises and cloud...Full timeFor contractorsWork at officeLocal areaImmediate startRemote workWork visa$125k - $150k
...technologies that unleash the power of genomics at scale and empower the future of human health. We are looking for a highly motivated Senior Linux Systems Engineer to join our Computing Team! You will work on high-performance computing (HPC) systems that are part of our...SeniorFull timeFlexible hours$90 - $131.5 per hour
Position Senior Principal Systems Engineer - on site in Aurora, CO. Location & Terms W2 hourly contract. Salary ranges from $90 to $131.50 per hour, depending on experience and benefits package. Clearance TS/SCI Clearance required. Responsibilities Elaborate capabilities...SeniorHourly payContract work$90 - $131.5 per hour
...Senior Principal Systems Engineer Location: Aurora, CO Job ID: 16254 Posted: 6/24/2026 Position Type: Contract to Hire Shift: 5x40 Contract: W2 Hourly only Pay: $90 - $131.50 per hour (based on experience and benefits package) Security Clearance: TS/SCI required (Active...SeniorHourly payContract workShift work- ...Senior Director, Principal Gifts About the Company Philanthropic organization supporting Indigenous culture & individuals Industry Non-Profit Organization Management Type Non Profit Founded 2017 Employees 11-50 Categories...Senior
- ...Kärcher in Aurora, CO seeks a senior e-commerce leader to drive our Amazon presence and other key marketplaces. You will lead strategic planning, set ambitious sales goals, and work with content teams to optimize product descriptions and search rankings. You will manage...Senior
$172.5k - $215.5k
...security Clearance. Candidates who do not hold this clearance are not eligible for hire. Solidus is seeking a highly skilled Senior Principal Systems Engineer to join a flagship program within our Space Intelligence, Surveillance, and Reconnaissance (SISR) business unit....SeniorContract workLocal area$132.4k - $251.6k
Location: US-MA-TEWKSBURY-TB1 ~ 50 Apple Hill Dr ~ ASSABET BLDG Date Posted: 2026-07-02 Position: Model-Based Systems Engineer (MBSE) Engagements Subject Matter Expert (SME) U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government...SeniorContract workTemporary workRelocation packageFlexible hours- ...thinkers fueled by curiosity, team players energized by collaboration, and creators inspired by imagination. Job Summary The Systems Administrator (SA) is responsible for providing advanced support for desktop, server, and network infrastructure. The SA is also...Temporary workLocal area
- ...updates as new positions become available. Position Title: System Administrator III Reports To: Director – Technology Services Direct Reports... ...cloud platforms across both IT and OT environments. Serve as a senior technical resource for complex systems issues, incidents and...Full timeWork at office
$99.3k - $208.6k
...Job Title: Systems Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: None Employee Type: Regular Percentage of Travel Required: None Type of Travel: Local Anticipated Posting End: 10/31/2026 The Opportunity CACi...Full timeContract workWork experience placementLocal areaImmediate startRemote work$85k - $95k
...Overview We are seeking an experienced Windows Systems & Infrastructure Administrator to lead and support our on‑premises and hybrid infrastructure environments. This role focuses on Windows Server administration, virtualization, enterprise storage, data protection, and...Full timeWork at officeRemote work
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