Software Engineer 3 - Linux/Bash/Python/Keycloak/Ansible/Docker/CI/CD

Captivation Software

Annapolis Junction, MDunknown$130,000–$270,000Posted Nov 4, 2026

About the role

Build to something to be proud of.

Captivation has built a reputation on providing customers exactly what is needed in a timely manner. Our team of engineers take pride in what they develop and constantly innovate to provide the best solution. Captivation is looking for software developers who can get stuff done while making a difference in support of the mission to protect our country.

Description

Captivation Software is looking for a senior level software engineer who shall be responsible for implementing access controls and permission mechanisms for securing access to critical HPC system resources through robust permission management, ensuring compliance with the Agency’s security policies and industry standards.

Requirements

Security Clearance:

Must currently hold a Top Secret/SCI U.S. Government security clearance with a favorable Polygraph, therefore all candidates must be a U.S. citizen

Minimum Qualifications:

Master's degree in Computer Science or related discipline from an accredited college or university, plus five (5) years of experience as a SWE, in programs and contracts of similar scope, type, and complexity.

Bachelor's degree in Computer Science or related discipline from an accredited college or university, plus seven (7) years of experience as a SWE, in programs and contracts of similar scope, type, and complexity

Nine (9) years of experience as a SWE, in programs and contracts of similar scope, type, and complexity.

Required Skills:

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, containers

Experience with CI/CD principles, methodologies, and tools including GitLab CI

Experience with Git Source Control System

Desired Skills:

Experience with the Atlassian Tool Suite (JIRA, Confluence)

Familiar with Agile, Scrum, or Scaled Agile Framework (SAFe) methodologies

This position is open for direct hires only. We will not consider candidates from third party staffing/recruiting firms.

Benefits

Annual Salary: $130,000 - $270,000 (Depends on the Years of Experience)

Up to 20% 401k contribution (No Matching Required and Vested from Day 1)

Above Market Hourly Rates

$3,600 HSA Contribution

6 Weeks Paid Time Off

Company Paid Employee Medical/Dental/Vision Insurance/Life Insurance/Short-Term & Long-Term Disability/AD&D

Responsibilities

  • Implement access controls and permission mechanisms for critical HPC system resources.
  • Manage permissions to support compliance with agency security policies and industry standards.

Qualifications

  • Hold an active Top Secret/SCI U.S. government security clearance with a favorable polygraph; U.S. citizenship required.
  • Have a master's degree in computer science or a related discipline and at least 5 years of relevant software engineering experience; alternatively, a bachelor's degree and 7 years, or 9 years of experience.
  • Use the Linux command-line interface and Bash scripting.
  • Develop software with Python and implement RBAC/ABAC for HPC systems.
  • Administer Linux security, including PAM, SELinux, file permissions, ACLs, and audit logging.
  • Develop IAM solutions using Keycloak and implement identity federation and SSO with SAML, OIDC, or OAuth2.
  • Integrate HashiCorp Vault for secret management.
  • Develop Ansible playbooks to automate provisioning of HPC hardware and software.

Benefits

  • 401(k) contribution of up to 20%, vested from day one
  • $3,600 HSA contribution
  • Six weeks of paid time off
  • Company-paid medical, dental, vision, life, short-term disability, long-term disability, and AD&D insurance

Skills mentioned

PythonLinuxShell ScriptingAnsibleDockerCI/CDGitIdentity and Access ManagementSAMLOpenID Connect

About Captivation Software

Build something to be proud of. Captivation is focused on engineering digital solutions for mission makers. We deliver software engineering expertise across a broad spectrum of disciplines, collaborating to solve problems with the agility and efficiency of a small business. Captivation has built a reputation on providing customers exactly what is needed in a timely manner. Our team of engineers take pride in what they develop and constantly innovate to provide the best solution. Captivation is a small, developer-oriented company that embraces the progressive attitude you would expect at a tech startup. We value transparency in the employer-employee relationship, and aim to empower our team through a flattened company structure. We actively pursue the most interesting work the Intelligence Community has to offer. Our team works with leading software technologies to create awesome solutions for happy clients.

Software Development11-50 employeesHanover, Maryland