Software Engineer III

Reflexive Concepts is seeking a skilled Software Engineer III to join our team!

The Software Engineer will implement access controls and permission mechanisms that secure critical High-Performance Computing (HPC) system resources, building RBAC/ABAC, identity federation and SSO, and secrets-management integrations with tools such as Keycloak and HashiCorp Vault in a Linux environment, while ensuring compliance with the Agency's security policies and industry standards.

• Active TS/SCI + FS Polygraph
• Master's degree in Computer Science or related discipline from an accredited college or university, plus five (5) years of experience as a Software Engineer, in programs and contracts of similar scope, type, and complexity OR
• Bachelor's degree in Computer Science or related discipline from an accredited college or university, plus seven (7) years of experience as a Software Engineer, in programs and contracts of similar scope, type, and complexity OR
• Nine (9) years of experience as a Software Engineer, in programs and contracts of similar scope, type, and complexity.

Required Skills + Experience:

• Experience using the Linux CLI
• Proficiency in scripting (Bash) to automate tasks and processes
• Experience developing software solutions using the Python programming language
• Experience implementing RBAC/ABAC for HPC systems
• Experience with advanced Linux security administration including PAM, SELinux, file permissions, ACLs, and audit logging.
• Experience developing IAM solutions using Keycloak
• Experience implementing identity federation and SSO (SAML, OIDC, OAuth2)
• Experience developing and maintaining secret management integrations using HashiCorp Vault
• Experience developing Ansible playbooks to orchestrate the automation of provisioning HPC hardware and software components
• Experience with containerization technologies such as Docker, PodMan, containerd
• Experience with CI/CD principles, methodologies, and tools including GitLab CI
• Experience with Git Source Control System

• Experience with the Atlassian Tool Suite (JIRA, Confluence)
• Familiar with Agile, Scrum, or Scaled Agile Framework (SAFe) methodologies