Senior Middleware Engineer — Remote, Secure Integrations

Polarits; Arlington (VA); On-site; USD 120,000 - 150,000; Full time

Job summary

Polarits is seeking a Senior Middleware Administrator for Arlington, VA. This 12+ month contract offers 100% remote work and requires U.S. citizenship.

The role focuses on administering middleware platforms across development, test, and production, with responsibilities spanning configuration, troubleshooting, and security compliance. You will collaborate with application developers, security, and infrastructure teams to ensure reliable performance, manage SSL certs, apply patches, and

Qualifications

• Bachelor's degree or equivalent experience in a related field.
• 5–7 years of middleware administration experience.
• U.S. citizenship and ability to obtain 6C Public Trust.
• Currently residing in the U.S. and able to pass a background check.
• Experience with AWS and enterprise security standards.

Responsibilities

• Administer, configure, and maintain middleware platforms across environments.
• Lead troubleshooting and root cause analysis for middleware issues.
• Collaborate with security, application developers and infrastructure teams.
• Monitor performance and tune for reliability and throughput.
• Manage SSL certificates and security configurations.
• Assist patching, upgrades, and vulnerability remediation.
• Document architecture and operational procedures.
• Contribute to project planning, R&D and deployment.
• Support environment refresh projects.
• Participate in disaster recovery planning and execution.

Skills

Middleware administration

Education

Bachelor's degree

Tools

AWS

ETL scripting

SSO

Two-Factor Authentication

Federal security standards

PII masking

Job description

Polarits is seeking a Senior Middleware Administrator for Arlington, VA. This 12+ month contract offers 100% remote work and requires U.S. citizenship.

The role focuses on administering middleware platforms across development, test, and production, with responsibilities spanning configuration, troubleshooting, and security compliance. You will collaborate with application developers, security, and infrastructure teams to ensure reliable performance, manage SSL certs, apply patches, and