Senior Systems Security Engineer - RMF/ATO & SIEM Lead
Sierra Nevada Corporation
Sierra Nevada Corporation is looking for a Principal Systems Security Engineer in Lone Tree, CO. This role involves overseeing the cybersecurity posture, compliance governance, and system accreditation in a multi-classification defense program environment. The ideal candidate will possess deep expertise in cybersecurity principles, vulnerability management, NIST standards, and hands-on experience with SIEM tools. A current Top Secret U.S. Security Clearance is mandatory. #J-18808-Ljbffr Sierra Nevada Corporation
$165.01k - $226.89k
## Principal Systems Security Engineer / Senior ISSMApplyremote type: In officelocations... ...aviation, it is a leading prime manned and... ...scanning, SIEM operations, STIG hardening... ...ISSO team development, ATO lifecycle management,... ...they own the program's RMF/ATO strategy, develop...SeniorWork experience placementWork at office- ...currently seeking aMission System Cybersecurity... ...Cybersecurity Engineer will play a key role... ...responsible for ensuring the security, resilience, and... ...They will take the lead on ensuring... ...monitoring (e.g., SIEM), DLP, and secure configurations... ...(e.g., NIST, RMF, ISO) and mission...SeniorPermanent employmentContract work
- A leading developer in advanced electronics is seeking a Senior Systems Engineer to provide leadership across R&D and product development. This role requires a Bachelor’s degree in a STEM field, 6+ years of relevant experience, and proven project leadership capabilities...Senior
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$148k - $235.75k
...A leading technology company is looking for a Senior Systems Software Security Engineer in Denver, Colorado. This role involves delivering essential security features for Data Center systems, engaging with teams to drive implementations, and innovating security solutions...Senior$135k - $190k
...build the technology that secures it.OUR MISSIONTrue... ...MISSIONWe are seeking a Senior Systems Engineer to join our team in... ...risk assessments, and leading design reviews.RESPONSIBILITIESThe... ..., integration, and ATO support in accordance... ...Management Framework (RMF) and NIST SP 800-53...SeniorPermanent employmentFor subcontractorWork at officeFlexible hours- Lunar Outpost is seeking a Senior Test Systems Engineer to support the Lunar Terrain Vehicle Services (LTVS) program. You will help plan and execute test campaigns, develop and operate vehicle testbed platforms, and contribute to IPT testing efforts within a dynamic startup...Senior
$141.6k - $212.4k
...own destiny.Klaviyo is looking for a Senior Security Engineer to add to our growing Detection and Response... ..., and scalable detection and response systems to enhance our security observability... ...centralized logging, data lakes, and SIEM solutionsFamiliarity with large-scale...Senior$92k - $120k
...TechnologyJob Description Summary: The Senior IT Security Engineer is responsible for planning, deploying... ...security and IT teams, and ensuring systems are optimized and compliant. Key responsibilities... ...of security tools (e.g., firewalls, SIEM, PAM, ZTN, IdP, IAM, CSPM, DLP,...SeniorFull timeWork at officeWork from homeFlexible hours2 days per week$100k - $130k
...Come shape the future with us. SPACE SYSTEMS At Rocket Lab, we're not just... ..., in-space manufacturing to national security and defense initiatives. The team has... ...and most ambitious space missions. SENIOR SYSTEM TEST ENGINEER I Based out of Rocket Lab's office...SeniorPermanent employmentWork at officeLocal area- ...the technology that secures it.OUR MISSIONTrue... ...a Mission Security Engineer III, you will be a... ...national security space systems, classified ground-... ...Operations Center (SIEM/SOC) deploymentYou... ..., minimizing RMF findings through strong... ...to maintain ATO postureSupport all...Permanent employment
$95.9k - $178.1k
...critical domain, connecting our technologies, our security and our humanity. While others view space as a destination... ...complianceSupport and generate products for formal system design reviewsCollaborate with other engineering disciplines across a small, compartmentalized, and...SeniorFull timeTemporary workWork experience placementCasual workFlexible hours$95.9k - $178.1k
...DescriptionSpace is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination,... ....Lockheed Martin (LM) is looking for an resourceful Systems Engineer, Senior to become a member of the Systems Engineering and...SeniorFull timeTemporary workWork experience placementCasual workFlexible hours$95.9k - $178.1k
...DescriptionSpace is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination... ...a career that's built for you. We are currently seeking a System Simulation Engineer.As a System Simulation Engineer you will work with a team...SeniorFull timeTemporary workWork experience placementCasual workWork at officeFlexible hours- Shannon & Wilson Inc. seeks an senior Geotechnical/Civil Engineer to lead the underground services practice and expand capabilities across roadways, rail, water, and utilities. You will coordinate design, cost estimates, and standards, while mentoring engineers and driving...Senior
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...collaboratively with members from other Security Operations teams to drive... ...across multiple operating systems as requiredServes as a Subject... ....Serves as the technical lead during Incident Response engagements... ...processes.Expert with SIEM, EDR, and other event correlation...SeniorFull timeTemporary workWork at officeVisa sponsorshipWork visa3 days per week$105.4k - $207.8k
...Summary Cisco Network Security Engineer/ Senior Consultant, Strategy, Growth... .... Delivering our industry leading services requires fresh thinking... ...intrusion prevention system (IPS), malware protection, URL... ...information and event management (SIEM) tools and automation...SeniorWork experience placementLocal areaVisa sponsorship$65 - $85 per hour
...Technologies Red Oak Technologies is a leading provider of comprehensive... ..., Manufacturing and Engineering. Our client is an aerospace and... .... They are looking for a Sr. Systems Engineer to join their team.... ...highly skilled and innovative Senior Systems Engineer to join our...SeniorContract work- Lockheed Martin Space is seeking a Systems Engineer to join the SEIT team. You will support interface definition and documentation for intersegment boundaries and work to ensure end-to-end mission performance across space/ground SATCOM systems. You will coordinate system...Senior
- Lockheed Martin Space is seeking a Senior Systems Engineer to join the Systems Engineering and Integration Team. You will develop subsystem requirements, model-based systems engineering artifacts, and support verification planning to deliver end-to-end integrated solutions...SeniorFlexible hours
- Lockheed Martin Space in Colorado is seeking a Systems Engineer to develop MBSE artifacts, derive interfaces, and support requirements across CONOPs and design reviews. You will work with software, avionics, and mechanical teams to ensure traceability and parameter verification...Senior
$110k - $155k
Stellar Solutions in Littleton, Colorado, is looking for a Systems Engineer (Sr/Staff) to support the Artemis program within the Mission Integration Team. Key responsibilities include spacecraft mission design, test campaign execution, and troubleshooting hardware/software...Senior- Lockheed Martin Space is seeking a Senior Systems Engineer for the Embedded System Engineering Team... ...for major reviews. The role requires leading teams, strong cross‑functional collaboration... ...the ability to obtain and maintain security clearances. This is a full-time on-...SeniorFull time
$50 per hour
...domain, connecting our technologies, our security and our humanity. While others view... ...design and analysis on thermal protection systems (TPS), as well as performing comprehensive... ...design and analysis data to the design/engineering team, customer technical representatives...SeniorFull timeTemporary workWork experience placementCasual workWork at officeFlexible hours- Sierra Nevada Corporation is looking for a Systems Engineer III in Lone Tree, CO, where you will handle advanced systems engineering tasks in... ...systems integration, and more. You will guide junior engineers and lead project responsibilities, demonstrating expertise in...
- Lockheed Martin Space in Littleton, Colorado seeks a Senior Systems Engineer to join a team focused on simulation and modeling for FBM programs... ...in flight dynamics, C++, and CM tools is essential, with security clearances required. The role is on-site at the Littleton location...Senior
- Lockheed Martin Space in Colorado is seeking a Senior Systems Engineer - Simulation to develop a 6DOF missile trajectory simulation and support analysis across the FBM program. You will write or modify software in C++, perform verification with legacy simulations and post...SeniorWork at office
- ...LE2 program. You will interact with the Chief Engineer’s Office, Program Management, and the FBM Mission Success Lead to balance development and production issues across... .... The role requires a STEM degree, active security clearance or ability to obtain Top Secret, travel...SeniorWork at office
- Lockheed Martin in Littleton, CO, seeks a Senior Systems Engineer for Missile Performance Simulation/Analysis. You will analyze missile trajectories... ...in MATLAB, Fortran, C/C++, Python, or Java, plus an active security clearance. A TS clearance is highly valued for...Senior
$100k - $130k
...Senior System Test Engineer IBased out of Rocket Lab's office in Littleton, CO, the Senior System Test Engineer I is responsible for the development... ...equipment (DMMs, Oscilloscopes etc.)Ability to obtain a Security clearance and maintain oneU.S citizenship is required, due...SeniorWork at office
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