Senior Security Engineer
Muon SpaceEarth Observation company
San Jose, United States$184,000 - $208,000Senior
Costanoa Ventures
Radical Ventures
Activate Capital
Acme Capital
ArcTern Ventures
Congruent Ventures
Software Engineering
About the role
TL;DR
Senior Security Engineer to protect Muon's infrastructure, data, and people.
- •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.
- •Key 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 Drive cloud security posture management across AWS environments including IAM policies, S3 bucket security, security group reviews, and CloudTrail/GuardDuty monitoring Requirements 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)
Required skills
IAMAWSSOC 2
Nice-to-have skills
TerraformCloudFormation
Domain expertise
aerospacedefense
Benefits & perks
equity, medical insurance, dental insurance, vision insurance, 401k, disability insurance, life insurance, paid vacation, paid holidays, sick time, parental leave
Tech stack
AWSElasticsearchSOC 2TerraformCloudFormation