IT Systems Administrator III
$100k - $135kInnoflight Inc
Join Innoflight As An It Systems Administrator Iii
Launch your career to new heights with Innoflight—one of San Diego's fastest-growing aerospace and defense innovators. Here, visionary minds engineer the future of space technology through pioneering, compact, and cyber-secure solutions. From software-defined radios to cutting-edge cryptographic systems and avionics, everything we build powers the next era of new space. Join our small, agile, and mission-driven team where your work has real impact and your growth has no limits. We're not just reaching for the stars—we're engineering them. Let's innovate the infinite, together.
A DAY IN THE LIFE: As an IT Systems Administrator III, you'll lead advanced system administration, security enforcement, and infrastructure operations across the organization. You'll be responsible for maintaining highly secure and reliable IT environments, including servers, virtualization platforms, networks, and cloud systems. You'll troubleshoot complex technical issues, strengthen cybersecurity posture, and drive system and process improvements. You'll play a key role in compliance efforts (including CMMC and NIST), support audits, and operate within secure or classified environments when required. You'll also mentor junior team members, contribute to IT policies and procedures, and collaborate across teams to ensure systems align with business and security objectives.
WHAT YOU'LL DO:
- Administer systems & infrastructure: Design, configure, optimize, and maintain enterprise servers, virtualization platforms, storage systems, and network infrastructure.
- Enforce security & compliance: Implement cybersecurity controls including patching, endpoint protection, vulnerability remediation, and compliance with frameworks such as CMMC and NIST.
- Resolve advanced technical issues: Troubleshoot and resolve escalated system, network, and application issues to maintain performance and uptime.
- Support secure environments: Manage systems within access-controlled or classified environments, ensuring adherence to strict security protocols and clearance requirements.
- Lead IT projects: Plan and execute infrastructure upgrades, system migrations, automation initiatives, and performance improvements.
- Manage system performance: Monitor systems, analyze performance metrics, and implement proactive optimizations.
- Support disaster recovery: Participate in backup management, restoration testing, and disaster recovery planning and execution.
- Maintain system operations: Oversee patching, maintenance windows, firmware updates, and configuration management.
- Administer network & security services: Support firewalls, VPNs, intrusion detection/prevention systems, DNS, DHCP, and other core network services.
- Manage software licensing: Track, maintain, and ensure compliance with software licensing agreements.
- Document systems & policies: Develop and maintain system configurations, diagrams, procedures, and security documentation.
- Support audits & compliance: Assist with audits and continuous improvement efforts related to security and regulatory standards.
- Provide on-call support: Participate in on-call rotations, scheduled outages, and incident response activities.
- Mentor junior staff: Provide technical leadership, training, and guidance to junior IT team members.
- Research & recommend improvements: Evaluate new technologies and best practices to enhance system efficiency, reliability, and security.
- Collaborate across teams: Partner with engineering, cybersecurity, and business teams to align IT operations with organizational goals.
- Report project status: Provide updates on ongoing IT projects and operational initiatives.
- Perform other duties: Complete additional responsibilities as assigned.
YOU'RE AWESOME AT:
- Advanced infrastructure management: You excel at managing complex enterprise environments including servers, networks, virtualization, and cloud platforms.
- Cybersecurity & compliance: You have strong expertise in system hardening, vulnerability management, and compliance frameworks like NIST and CMMC.
- Complex troubleshooting: You can quickly diagnose and resolve high-level technical issues across infrastructure and applications.
- Operating in secure environments: You understand and adhere to strict security protocols required in controlled or classified environments.
- Process improvement: You identify inefficiencies and implement scalable, secure solutions.
- Documentation & communication: You produce clear, thorough documentation and communicate effectively with technical and non-technical stakeholders.
WHAT YOU'LL NEED:
- Bachelor's degree in computer science, information technology, or a related field (preferred).
- 5 or more years of experience in system administration, networking, and security operations.
- Strong experience with Windows/Linux server environments, active directory, virtualization platforms (VMware, Hyper-V), and enterprise networking.
- Solid understanding of network security, including firewalls, VPNs, intrusion detection/prevention systems, and secure configuration practices.
- Experience with cloud platforms such as Azure and AWS, along with identity and access management systems.
- Working knowledge of security frameworks such as NIST, CMMC, ISO, or similar compliance standards.
- Ability to troubleshoot complex infrastructure, application, and network issues and implement effective long-term solutions.
- Experience with scripting and automation tools such as PowerShell or Python (preferred).
- Familiarity with IT monitoring tools, ticketing systems, and remote support platforms.
- Strong communication skills with the ability to document systems, procedures, and technical processes clearly.
- Relevant certifications such as Security+, Azure administrator, CCNA, or equivalent (preferred).
- Ability to obtain and maintain a U.S. security clearance and work in secure or classified environments.
- Ability to obtain a U.S. security clearance.
COMPENSATION & BENEFITS The starting base salary for this position ranges from $100,000 to $135,000 per year, depending on the candidate's job-related knowledge, skills, and experience. In addition to a competitive base salary, Innoflight offers a well-rounded compensation package that includes a profit-sharing bonus and a cash performance bonus to reward both individual and company performance. Additional benefits include:
- 401(k) with 3% company match (automatic enrollment)
- Comprehensive medical, dental, vision, HSA & life insurance
- 10 paid holidays + 120 hours PTO (starting in year one)
- Access to ancillary benefits such as critical illness, accident, disability, legal and pet insurance.
WHY YOU'LL LOVE WORKING HERE
- Flexible work-life balance: Enjoy a 9/80 work schedule with every other Friday off—whether you use it to recharge, work on a passion project, or spend time with family, the choice is yours.
- Continuous learning & development: We're serious about professional development. From tuition reimbursement to internal "ask me anything" sessions and weekly "lunch & learns," we make learning a core part of the job.
- Mission-driven culture: We aren't just building tech—we're enabling the next era of space exploration. Our culture ambassadors help lead initiatives around inclusion, positivity, recognition, and transparency. Here, your voice is heard, your work is respected, and your individuality is celebrated.
BE YOU, WITH US At Innoflight, we are committed to fostering an inclusive and equitable workplace where everyone belongs. We recognize that great talent comes in many forms, and you don't need to meet every requirement to bring value to our team. If this role excites you, we encourage you to apply—even if you don't check every box. YOU SHOULD KNOW: Potential new employees must successfully complete a background check which includes criminal search, education certification and employment verification prior to hire. Applicants must be authorized to work for any employer in the U.S as you must have the ability to obtain a security clearance. We are unable to sponsor or take over sponsorship of an employment visa. A note to staffing agencies: Innoflight does not accept unsolicited resumes from agencies, recruiters, or any third-party sources. Any such submissions will be considered property of Innoflight, and no fees will be paid in the event a candidate is hired from an unsolicited referral. To California residents applying for this job, please read Innoflight's CCPA notice: #LI-Onsite
$100k - $170k
Saalex Corporation Saalex Corporation is seeking multiple System Administrator III in Tidewater, VA and San Diego, CA . Saalex Corp., is an Engineering... ...Navy by administering, maintaining, and securing enterprise IT systems across global Live Virtual Constructive (LVC)...SuggestedContract workTemporary workLocal areaFlexible hours$120k - $155.4k
Overview Resource Management Concepts, Inc. (RMC) is looking for a talented Systems Administrator III to support the Naval Information Warfare Center (NIWC) Pacific Service Centers in Point Loma, CA. This role is critical in ensuring seamless operations within the Data...SuggestedContract work$110k - $180k
...Saalex Corporation is seeking multiple Systems Engineer III positions in Tidewater, VA and San Diego, CA . Saalex Corp. is an Engineering and... ...the Navy by designing, engineering, and integrating enterprise IT systems and architectures across global Live Virtual Constructive...SuggestedContract workTemporary workLocal areaFlexible hours$115k - $160k
Saalex Corporation is seeking multiple Database Administrator III inTidewater, VA and San Diego, CA. Saalex Corp., is an Engineering and Information... ...designing, implementing, and maintaining enterprise database systems supporting global Live Virtual Constructive (LVC)...SuggestedContract workTemporary workLocal areaFlexible hours$130k - $165k
Sigma Defense is seeking a Systems Engineer II-III to join our team in San Diego, CA. Equal Opportunity Employer/Veterans/Disabled: Sigma Defense Systems is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard...Suggested$135k - $180k
...Saalex Corporation is seeking multiple Cybersecurity Engineer III in Tidewater, VA and San Diego, CA. Saalex Corp., is an... ...the Navy by designing, implementing, and securing enterprise IT and network systems in support of global Live Virtual Constructive (LVC)...Full timeContract workTemporary workLocal areaFlexible hours- ...Linux Administrator HonorVet Technologies is a veteran-owned IT staffing firm, ISO 9001 and ISO 27001 certified, working with federal agencies, state... ...believe there's a fit worth exploring. Title: Systems Engineer – III (Linux Administrator) Location: San Diego, CA...
$61.9k - $141k
IT Systems Administrator, MidThe Opportunity:Your combination of people skills and system administrator knowledge makes you the team hero, solving one problem after another. What if you could use those skills to improve the technology supporting the U.S. Navy? We’re looking...Full timeContract workPart timeWork at officeLocal areaRemote work- .... For more information, visit . Job summaryThe Quality Engineer III provides quality engineering leadership and technical support for... ...preventive actions, supplier quality, change control, quality-system documentation, inspection methods, and continuous improvement initiatives...Contract workWork at office
$86.74k - $152.43k
Engineer III - Senior Electrical Engineer - HealthcareWatch your work come to life in... ...designer, to develop specifications, system narratives and system layouts for a variety... ..., owners, etc. Supervising construction administrative duties such as field reports, responses...For contractorsWork at officeWork from homeFlexible hours- ...RequiredSecretJob DescriptionPrescient Edge is seeking a Test Engineer III to support a federal government client.Please note that the... ...analyze the impact of the products they develop or the systems they design on the environment and on the people using them. In...
- ...States. At PMAT, we work on mission critical systems that directly support the warfighter, designing,... ...role: PMAT is seeking a CyberSecurity Engineer III to support the design, deployment, security, administration, and sustainment of Secret and Top Secret mission...Remote work
$121k - $150k
...industrial motion control solutions is hiring an Electrical Engineer III to support the subsea technology industry. In this role, you... ...for motion control products, including underwater propulsion systems, electric rotary and linear actuators, and electro-hydraulic systems...Permanent employmentFull time- ...Engineer to support our TACNET program onsite in San Diego, CA Or Norfolk, VA. This role requires up to 25% travel.JOB DUTIES:Provide system life cycle systems engineering support for our NAVWAR and NIWC customers. Focused primarily on ACS but will include software and...Remote work
$120k - $145k
...CA. Remote is not offeredAxos is seeking an experienced Senior Systems Engineer to join our team. You will be responsible for managing... ...will also act as an L2/L3 System Engineer resource, working across IT Infrastructure teams in a regulated banking environment....Full timeWork at officeLocal areaRemote work$106.8k - $120.15k
...responsible for designing, specifying, and maintaining control systems supporting biopharmaceutical manufacturing facilities and processes... ...of GMP-related documentation. The Automation Engineer III will lead technical assessments and upgrade projects for automated...Full timeWork at officeFlexible hours$43 - $48.5 per hour
...range $43.00/hr - $48.50/hr Recruiter III at Balance Staffing Company At Balance Staffing... ...achieve your career dreams. Job Title: System Administrator Type of Role: Contract to Hire Hourly... ..., documentation, and adherence to IT standards. The System Administrator works...Hourly payContract work$130k - $150k
...solutions. From software-defined radios to cutting-edge cryptographic systems and avionics, everything we build powers the next era of New... ..., together. A DAY IN THE LIFE: As a Project Engineer III , you will spearhead the development of space-capable products...Hourly payFull timeTemporary workWork experience placementLive inWork visaWeekend work$96k - $120k
Bowman has an opportunity for a Civil Engineer III to join our team in San Diego, CA. Purpose Carry out complex or novel assignments requiring the development of new or improved civil engineering techniques or procedures to create new or refined equipment, materials, processes...Contract workFor subcontractorWork at officeLocal areaRemote work$125k - $175k
...Systems Engineer III - Border and Coastal SurveillanceLyntris is a defense technology company that connects sensing to action across the connected battlespace. Lyntris brings together the talents of Accelint and Vitesse teams under one mission, with each contributing...- ...Systems Engineer IIIXSITE LLC is looking for a Systems Engineer III to join our team in San Diego, CA to support the PMW/A 170 office/contract.We are a Service-Disabled Veteran-Owned company headquartered in San Diego. We provide full spectrum systems and systems-of-systems...Long term contractContract workWork at office
$90k - $120k
...Systems EngineerThis position is onsite in San Diego.Mainstay Medical is a medical device company focused on marketing an innovative implantable... ...Product Development projects.Experience working with FDA Class III or EU MDR Class III devices.Previous experience with the...$115k - $155k
...Role: Senior IT Systems Administrator Location: San Diego, CA (in-office) Salary: $115,000 - $155,000 / yr + stock options, 401k matching, and other benefits Role Overview: Seasats is growing rapidly, and we're looking for a Senior IT Systems Administrator...Permanent employmentFull timeWork at officeLocal areaImmediate startVisa sponsorshipWork visaFlexible hours- ...Employment Type: W-2 (No C2C) Position Overview: We are seeking a Systems Engineer III to support cross-functional R&D teams in the development... ..., CA $110,000.00-$140,000.00 10 hours ago Lenel System Administrator II (Job ID: 3798) Information System Security Engineer (...Contract work
- ...Linux Systems AdministratorBridge Defense is redefining how modern defense technology is... ...the design and implementation of advanced IT and cybersecurity capabilities ranging... ...Summary: Bridge Defense seeks a Linux Systems Administrator to support the N6 IT Fleet Weather...RelocationFlexible hours
$115.58k - $173.37k
...solutions. From software-defined radios to cutting-edge cryptographic systems and avionics, everything we build powers the next era of New... ..., together. A DAY IN THE LIFE: As a Hardware Engineer III , you’ll take technical ownership of complex electronic hardware...Full timeWork visaFlexible hours$121.6k - $125k
...IT SYSTEMS ADMINISTRATOR Dunham & Associates Investment Counsel is a San Diego-based asset management and trust services firm serving independent financial advisors and RIAs across the country, operating through three entities: Dunham, Dunham Trust, and Dunham Private...Full timeTemporary workWork at officeLocal areaVisa sponsorshipFlexible hoursWeekend work$125.3k - $187.9k
...employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for... ...accordance with DoDI 8570/8140Preferred QualificationsIASAE level III certified (ISSEP, ISSAP) in accordance with DoDI 8570/8140Top Secret...Full timeRelocation packageShift work$98k - $140k
...members and civilians with intelligent systems. Its products include Hivemind autonomy... ...YouTube. Job Description:The Senior Systems Administrator is responsible for the administration,... ...continuous improvement of the enterprise IT infrastructure supporting Shield AI's...Full timeTemporary workPart timeWorldwide$91.42k - $146.26k
OverviewThe Institute of Defense Analyses (IDA) in La Jolla, CA has an immediate career opening for a Systems Administrator II. This opening is located at IDA’s Center for Communications Research in La Jolla, California (CCR-L).We are seeking a Systems Administrator II...Immediate start
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to IT Systems Administrator III. Be the first to apply!
- IT infrastructure administrator San Diego, CA
- application system administrator San Diego, CA
- enterprise administrator San Diego, CA
- computer systems administrator San Diego, CA
- remote systems administrator San Diego, CA
- IT administrator San Diego, CA
- system admin San Diego, CA
- server administrator San Diego, CA
- systems administrator San Diego, CA
- microsoft systems administrator San Diego, CA




