Jobs in the United States

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Added 18 mins ago
Antenna and Microwave Engineer II
RTX
United States
Qualifications You Must Have
Added 26 mins ago
Sr. Analyst/Engineer I (II)
PJM Interconnection, L.L.C.
Audubon, PA
…transmission projects to the PJM system and the installation of network upgrades to ensure the long-term reliability and adequacy of the PJM system. The department coordinates, with the…
Added 1 hour ago
Network Operations Engineer II
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Network Operations Engineer II - Client Onsite
Added 1 hour ago
A
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Added 2 hours ago
Data Center Technician II (Weekend Shift)
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Added 5 hours ago
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Microsoft
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- $102,100 to $219,200 USD / year
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Added 5 hours ago
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Eliassen Group
Aberdeen Proving Ground, MD
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Added 6 hours ago
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Infrastructure Engineer II
American Express
Phoenix, AZ
- $89,250 to $150,250 USD / year
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Added 7 hours ago
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Added 7 hours ago
Data Center Technician II
Google
Stillwater, OK
Must have the ability to work non-standard hours, including working weekends, night shifts, holidays and on shift-based schedules as required
Added 7 hours ago
Data Center Technician II
Google
Pryor, OK
Must have the ability to work non-standard hours, including working weekends, night shifts, holidays and on shift-based schedules as required
Added 9 hours ago
Security Engineer II, AVMS Orchestration
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Added 10 hours ago
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Mid-level Cloud Infrastructure Engineer
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Added 11 hours ago
RF Device Engineer
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El Segundo, CA
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Added 12 hours ago
Embedded Software Engineer II
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Qualifications You Must Have:
Added 13 hours ago
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Network Engineer II
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Added 14 hours ago
Northrop Grumman (SkillBridge) - Principal Network Cloud Communications
Northrop Grumman
Redondo Beach · Melbourne · Linthicum Heights · Rolling Meadows
IMPORTANT – Please complete a SkillBridge Prescreen by Joining the Military / Veteran Talent Network.
Added 14 hours ago
System Engineer II
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Added 15 hours ago
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Senior Model Integration & Correlation Engineer
Rivian and Volkswagen Group Technologies
Irvine, CA
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…educational, professional, employment, social media/website, network/device, recruiting system usage/interaction, security and preference information. Rivian and Volkswagen Group…

Muon Space

Senior Security Engineer - General

San Jose, CA, United States

Apply on job-boards.greenhouse.io About employer

Applications open in a new tab.

Job details

Experience: 5+ years of experience in information security or security engineering roles
Posting language: English
Posted: Jul 31, 2026

Original job description

About the Role

Muon seeks a Senior Security Engineer to join our Security Engineering & IT team. The ideal candidate brings deep expertise across multiple security domains and can operate independently to protect Muon’s infrastructure, data, and people. You will own and advance our security posture across endpoints, networks, cloud environments, and identity systems while contributing to compliance efforts including NIST 800-171 and ITAR/EAR requirements.

This position is hybrid and requires working on-site in our San Jose, CA office three days per week or fully remote from an approved U.S. location.

Responsibilities

Design, deploy, and manage endpoint security solutions (EDR/XDR) across macOS and Windows fleets, including policy tuning, alert triage, and incident response
Own network security architecture including firewall rule management, IDS/IPS tuning, network segmentation, and VPN infrastructure
Lead vulnerability management program - run scans, prioritize findings, coordinate remediation with engineering teams, and track closure metrics
Administer and harden IAM systems (Okta, AWS IAM) including SSO integrations, conditional access policies, privilege access reviews, and lifecycle automation
Develop and maintain security monitoring and alerting using SIEM platforms, building detection rules and response playbooks
Conduct security assessments of new tools, vendors, and architectural changes before deployment
Drive cloud security posture management across AWS environments including IAM policies, S3 bucket security, security group reviews, and CloudTrail/GuardDuty monitoring
Support CMMC Level 2 and NIST SP 800-171 compliance - maintain SSP control narratives, collect evidence, and prepare for assessments
Develop and deliver security awareness training and phishing simulation campaigns
Lead or support incident response activities including containment, forensic analysis, root cause determination, and post-incident reporting
Maintain and improve data loss prevention (DLP) controls for CUI and sensitive data
Contribute to security policy development and keep documentation current as the environment evolves

Qualifications

5+ years of experience in information security or security engineering roles
Strong hands-on experience with endpoint detection and response platforms (CrowdStrike, SentinelOne, or similar)
Demonstrated experience managing enterprise vulnerability scanning tools (Tenable, Qualys, Rapid7, or similar)
Deep understanding of identity and access management principles and hands-on Okta or Azure AD administration
Proficiency with cloud security in AWS (IAM, VPC, Security Groups, CloudTrail, GuardDuty, Config)
Experience with SIEM platforms (Splunk, Sentinel, Elastic, or similar) for log analysis and detection engineering
Solid networking knowledge - firewalls, proxies, DNS security, network segmentation, packet analysis
Familiarity with compliance frameworks such as NIST 800-171, CMMC, SOC 2, or ISO 27001
Excellent written and verbal communication skills - able to convey risk and technical findings to both engineers and leadership

Nice-to-Have Skills

Relevant certifications (CISSP, GIAC, CEH, AWS Security Specialty, or similar)
Experience with infrastructure-as-code security (Terraform, CloudFormation) and CI/CD pipeline security
Background in environments subject to ITAR/EAR export control requirements

Salary

The salary range for this role is $193,000 - $218,000, plus a competitive equity grant and comprehensive benefits package. Final compensation will be determined based on skills, qualifications, experience, and geographic location as assessed during the interview process. About Muon Space

Founded in 2021, Muon Space is an end-to-end Space Systems Provider that designs, builds, and operates LEO satellite constellations delivering mission-critical data. Our revolutionary, integrated technology stack enables customers to optimize every dimension of their missions for faster time-to-orbit and superior constellation remote sensing performance. Our state-of-the-art facility in the heart of Silicon Valley is optimized for manufacturing spacecraft and rapid, flexible payload integration at scale. From climate monitoring to national security, Muon Space is dedicated to delivering Earth Intelligence for a safer and more resilient world.

Taking Care of Our Team

At Muon salary is only part of our total compensation package. In addition to salary, full-time employees receive equity compensation as well as benefits including medical, dental, and vision insurance, a 401k retirement plan, short & long term disability and life insurance. We also offer three weeks paid vacation for new employees, along with 12 paid holidays, unlimited sick time and paid parental leave.

Our mission embraces the entire planet and we believe our team should too. Muon is dedicated to creating a diverse and dynamic company and workforce. We believe in equal employment opportunity regardless of race, color, ancestry, religion, sex, age, national origin, citizenship, sexual orientation, marital status, disability, or gender identity. We value diversity in the workplace, and that starts with our applicants. We encourage you to apply, even if you don't check all the boxes, and we look forward to reviewing your application! In addition, if you need a reasonable accommodation as part of your application for employment or interviews with us, please let us know.

Muon is currently registered and able to hire in the following states:

AL, AZ, CA, CO, CT, DC, FL, GA, IL, IA, ID, MD, MA, MI, MN, MO, NJ, NY, NC, OH, OR, PA, TN, TX, VT, VA, WA

ITAR/EAR Requirements

This position requires access to export controlled information. To conform to U.S. Government export regulations applicable to that information, applicant must either be (A) a U.S. person, defined as a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (green card holder), (iii) refugee under 8 U.S.C. § 1157, or (iv) asylee under 8 U.S.C. § 1158, (B) eligible to access the export controlled information without a required export authorization, or (C) eligible and reasonably likely to obtain the required export authorization from the applicable U.S. government agency. The Company may, for legitimate business reasons, decline to pursue any export licensing process.

Apply on job-boards.greenhouse.io About employer

More about this job

Skills

Regulatory compliance
Apple macOS
Microsoft Windows
Incident response
IDS
IPS
VPN
Identity and access management
AWS
SSP
Reporting
Loss prevention
Policy development
Documentation
Cybersecurity
Rapid7
Microsoft Azure
Splunk
DNS
Communication skills
Leadership
CISSP
Infrastructure as code
IBM Terraform
CI/CD

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Jobs in the United States