Principal Software Engineer - DevSecOps

Principal Software Engineer – DevSecOps (Applied Signal Technology – San Jose, CA) This is an onsite position. U.S. citizenship required; TS/SCI security clearance with polygraph required after start. What You Will Do Drive and manage AST’s DevSecOps development environment, tooling, and process workflows. Coach, mentor, and enable engineering teams to adopt and utilize the DevSecOps ecosystem and workflows. Oversee installation, configuration, and maintenance of enterprise DevSecOps applications, including application and plugin deployments, upgrades, patches, and configurations. Handle system migrations, cross‑application integrations, user provisioning, access management, and permissions. Provide project and technical user support: project onboarding, custom support requests, day‑to‑day troubleshooting, documentation of best practices, and template creation. Collaborate closely with project managers, engineering leadership, and development teams within the Engineering organization. Travel up to 25% to other AST locations and customer sites within the U.S. Qualifications – Must Have Degree in Science, Technology, Engineering, or Mathematics (STEM) and a minimum of 8 years of relevant experience. Experience managing and/or supporting enterprise applications such as Atlassian Jira/Confluence, Gitlab, Cloudbees CI (Jenkins), artifact repositories (JFrog Artifactory, Sonatype Nexus, Pulp), software supply chain security tools (JFrog Xray, Sonatype Lifecycle, Black Duck), container and orchestration tools (Docker, Podman, Kubernetes, Helm), and secrets management tools (AWS Secrets Manager, GitGuardian). Experience with managing and developing CI/CD pipelines. Proficiency in scripting languages (Python, Go, Groovy, Bash, Perl, etc.). Experience with Linux System Administration on RedHat‑based distributions (RHEL, Fedora, CentOS, Rocky). Experience with virtualization technologies (KVM, VMWare, Hyper‑V). Ability to work collaboratively within multi‑disciplinary teams. Must obtain a U.S. government‑issued Top Secret SCI (TS/SCI) security clearance with polygraph after start. Qualifications – Prefer Experience with Infrastructure as Code tools (Terraform, Ansible, Puppet, Salt). Experience with observability dashboard tools (Datadog, Splunk, Grafana, Kibana). Professional certifications in DevOps/DevSecOps or CI/CD (e.g., CKS, CKA, CKAD, DCA, AWS Certified DevOps Engineer – Professional, AWS Certified Security Specialty, RHCE, LFCE, CompTIA Security+, GitLab Certified CI/CD Associate, GitLab Certified Security Specialist). Strong foundation in Agile software development. Cross‑platform development experience focusing on RHEL/CentOS/Rocky 8+ and Windows. Familiarity with key U.S. government cybersecurity regulations and standards such as NIST SP800‑171, FIPS, and DFARS/CMMC. Basic understanding of telecommunications systems or signal processing concepts. Active, transferable TS/SCI clearance with polygraph (if previously held). RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified individuals with a disability and protected veterans in compliance with Section503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act. #J-18808-Ljbffr