Senior System Administrator/ Developer (DISA)

Description

Senior System Administrator and Developer role in a Key Personnel position that owns administration of the contract writing system, a DISA application built on Appian.

The system runs in the Impact Level 5 Appian Government Cloud, with a Data Integration layer in DISA's Stratus cloud.

You will keep the environments patched, secure, and compliant.

The company is an IT and management consulting firm in the Washington, DC area, founded in 1996, serving private and public sector clients.

Responsibilities

• Take ownership of system administration for the contract writing system as Key Personnel, lead System Administrator support, and coordinate with the Database Administrator and the ISSO.
• Build, decommission, and manage RHEL, Apache HTTP, Oracle Java, and Oracle WebLogic for the Development, Staging, and Performance environments, including user accounts, security groups, and file permissions.
• In Staging and Production, administer Appian, Oracle applications, and WebLogic, and file Enterprise Change Requests with the Change Advisory Board and the DISA OS, database, and web administration groups.
• Test and document security patches for RHEL, Apache, Appian, Java, WebLogic, Oracle Service Bus, Tomcat, and ANT in lower environments using automated scripts, then schedule production deployment through the hosting provider's Application Service Interruption process.
• Act as the ISSO's alternate for STIG checklist reviews, ACAS and HBSS findings, IAVA remediation, and POA&M inputs.
• Handle the DoD PKI certificate lifecycle: signing requests, installation, expiry tracking, Certificate Revocation List updates, and removal of expired or revoked certificates.
• Automate log inspection with shell scripts and Splunk, and produce ranked worst actor risk and trend reports.
• Hold server application components no more than two releases behind the vendor's baseline.
• Write and maintain System Administration documentation, SOPs, System Security Plan inputs, system diagrams, administration and troubleshooting guides, and lists of critical services.
• Help the team achieve and keep the Authority to Operate during the base year.

Requirements

• Required: 10+ years in IT, with 5+ years administering Red Hat Enterprise Linux in production.
• Required: 5+ years administering Oracle WebLogic Server.
• Required: a track record of patching, tuning, and hardening Apache HTTP servers and Java applications.
• Required: you have implemented DISA STIGs yourself, remediated ACAS findings, and kept IAVA compliance within a DoD Risk Management Framework setting.
• Required: you manage DoD PKI and SSL/TLS certificates.
• Required: you script automation in Bash and use Splunk or a similar log analysis tool.
• Required: you have worked through formal change control in a government-hosted setting.
• Required: you have spent time on at least two projects at a large organization, running and securing a large-scale application.
• Preferred: Oracle Service Bus and Apache Tomcat administration.
• Preferred: prior DISA experience, including Stratus cloud or DISA hosting coordination.
• Preferred: prior support for the contract writing system.
• Preferred: eMASS, HBSS/ENS, and IAVA workflow experience.
• Preferred: familiarity with Appian Cloud administration.
• Preferred: RHCSA or RHCE certification.

Conditions

Listed as a future opportunity at the proposal stage.

An active Secret clearance is required.

Equal opportunity employer, including veterans and people with disabilities.

Benefits

• Health coverage: medical, dental, vision, and disability.
• 401k, 100% vested from day one, with an employer match after 90 days.
• Educational assistance.
• Student loan repayment.
• Gym reimbursement.
• Paid time off.
• Training and certification in current technologies and development practices.