Jr Linux Engineer

Fantom Corporation is a mission-focused organization supporting critical programs across the defense and intelligence community. We partner with our customers to deliver high-impact technical solutions while fostering a culture built on trust, expertise, and long-term career growth.

We are seeking a Linux Systems Engineer to support a mission-critical enterprise Identity and Access Management (IAM) environment. This position provides lifecycle systems engineering and operational support across Linux and AWS infrastructure while troubleshooting complex system, network, and access-related issues.

The ideal candidate will have a strong Linux background, hands-on AWS experience, and the ability to work across development, operations, and customer-facing technical teams.

Responsibilities

• Provide technical support for Tier II personnel and resolve customer-facing system and access issues


• Perform root cause analysis (RCA), troubleshoot operational issues, and implement mitigation strategies


• Monitor system health, user metrics, performance, and operational availability


• Develop scripts and playbook-based automation to support recurring operational tasks


• Manage and maintain COTS and GOTS software across multiple environments


• Partner with enterprise services teams to maintain security and application compliance


• Troubleshoot network and identity/access issues across complex environments


• Analyze system workflows and identify performance bottlenecks and opportunities for improvement


• Document technical findings and communicate issues and resolutions to development and operational teams

Required Qualifications

• Must posses an active Top Secret Clearance


• Must be willing and able to obtain a polygraph


• Bachelor’s degree with 2–4 years of relevant experience, or Master’s degree with less than 2 years of relevant experience


• Strong Linux systems administration and infrastructure management experience


• Two (2) or more years of AWS experience, including services such as EC2 and S3


• Experience troubleshooting network issues across OSI Layers 4–7


• Familiarity with systems engineering documentation, including network diagrams and data flows


• Experience with Agile collaboration tools such as Jira, Confluence, and Bitbucket


• Strong troubleshooting, communication, and problem-solving skills


• Current Security+ certification prior to start

Desired Qualifications

• Experience with identity federation, Single Sign-On (SSO), SAML, OIDC, OAuth, Kerberos, and CAC/smart card authentication


• Experience with Oracle Access Manager, Oracle Unified Directory, Oracle WebLogic, or similar enterprise products


• Experience with Kubernetes


• Bash and Python scripting experience


• Experience with LDAP


• Experience with Elasticsearch, Logstash, and Kibana (ELK)


• Experience with AWS and cloud-based architectures


• Familiarity with cross-domain architectures


• Experience with automated testing and monitoring


• Experience supporting Engineering Review Boards and Change Management processes


• #CJ