Senior DevSecOps Engineer

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Senior DevSecOps Engineer in USA

Momentus Space LLC
Full time
Email

USA
10/10/2026
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San Jose, CA

Responsibilities

Operate and improve AWS environments, Kubernetes clusters, and CI platforms while migrating workloads into a new AWS GovCloud organization.
Build a multi-account AWS GovCloud organization and segmented network planes using Transit Gateway, firewalls, IPAM, PrivateLink, and VPNs.
Deliver secure environment ingress and egress and troubleshoot cross-account cloud networking.
Own the software supply chain from commit to cluster, including CI/CD runner fleets, FIPS-validated images, signed artifacts, replicated registries, and private PKI.
Translate NIST SP 800-171 and CMMC controls into automated guardrails and evidence while triaging and reducing security findings.
Write design notes, merge request reviews, and runbooks and improve shared AI-assisted engineering workflows.
Roll out and support AI developer tooling and operate MCP servers and agent runtimes.

Requirements

7+ years of experience in infrastructure, platform, security, or site reliability engineering, including 3+ years building on AWS with infrastructure as code.
Bachelor's degree in Computer Science, Computer Engineering, or a related field, or equivalent practical experience.
Production experience with Terraform or OpenTofu, including reusable modules, state management, imports, refactors, and plan review.
Proficiency in Python and/or Go plus shell scripting and strong technical writing skills.
Deep hands-on AWS multi-account experience with IAM policy evaluation, Organizations, service control policies, and Identity Center or equivalent federation.
Hands-on cloud networking experience with VPCs, Transit Gateway routing and segmentation, firewalls, DNS, PrivateLink, and site-to-site VPN with BGP.
CI/CD and container supply-chain experience covering image builds, signing and verification, secrets management, and vulnerability scanning.
Experience operating access to hosted model services or an LLM gateway and working with AI coding agents and their security risks.
Preferred qualifications include AWS GovCloud, FedRAMP, NIST SP 800-171, CMMC, ITAR-controlled environments, greenfield landing zones, private PKI, HSM-backed key management, mTLS, service mesh, GitOps, LLM gateway operations, MCP security, production Kubernetes, FIPS 140-3 cryptography, aerospace or defense programs, DoD or USG deployment programs, and the ability to hold and maintain a USG Security Clearance.

Benefits

Medical, dental, and vision insurance.
401k retirement plan, short- and long-term disability insurance, and life insurance.
Flexible PTO, 11 paid holidays, sick time, and paid parental leave.
Full-time position in San Jose, California, with preference for onsite work while considering hybrid and remote candidates.

Salary: $190k - $225k/yr

Momentus Space LLC

Momentus provides in-space transportation and infrastructure services for satellite operators. It builds and operates Vigoride orbital transfer vehicles to deliver small satellites to precise orbits, perform orbit-raising, and host payloads for on-orbit experiments. The company sells mission slot...

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