[Remote] Linux Middleware Systems Administrator (Remote - Occasional Office Visits Required)
Note: The job is a remote job and is open to candidates in USA. Unison is a company that powers the business of government by providing AI-infused software and deep domain expertise. They are seeking a Linux Middleware Systems Administrator to support Linux servers, middleware platforms, and database-connected applications in hosted SaaS environments, ensuring stable and secure systems through administration, monitoring, and troubleshooting.
Responsibilities
- Administer, configure, patch, troubleshoot, and maintain Linux servers, primarily Red Hat Enterprise Linux and similar distributions
- Support Linux server builds, system baselines, hardening, vulnerability remediation, documentation, and operational procedures
- Support middleware platforms for application integration, SOA services, APIs, web services, data movement, and batch processing
- Support Talend components including TAC, JobServers, Runtime, ESB, Tomcat, and Karaf
- Monitor, troubleshoot, patch, upgrade, deploy, restart, and validate Talend jobs, routes, schedules, logs, runtime services, and middleware components
- Troubleshoot issues involving connectivity, credentials, permissions, APIs, databases, Java, memory, certificates, and configuration settings
- Respond to production alerts, outages, Talend failures, Linux issues, middleware incidents, and database connectivity problems
- Support middleware, Talend, and application connectivity to PostgreSQL, Oracle, and MySQL
- Troubleshoot database issues involving JDBC drivers, connection strings, ports, credentials, certificates, firewalls, DNS, and service accounts
- Work with DBA, Hosting, Development, Security, and Support teams to resolve incidents, performance, access, patching, backups, and maintenance
- Participate in on-call and after-hours production support as needed
- Follow change management procedures for changes, patches, deployments, configuration updates, and emergency fixes
Skills
- 5+ years of Linux systems administration experience in a production, SaaS, hosting, or enterprise environment
- Strong hands-on experience with Red Hat Enterprise Linux or similar enterprise Linux platforms
- Experience supporting middleware, Talend, SOA services, APIs, web services, or application integration platforms
- Experience with Apache Tomcat, Apache Karaf, Java runtime services, or similar middleware components
- Experience troubleshooting PostgreSQL, Oracle, and MySQL database connectivity
- Working knowledge of TCP/IP, DNS, firewalls, ports, load balancers, VPN, and basic network troubleshooting
- Experience with patching, vulnerability remediation, system hardening, and operational maintenance
- Ability to use logs and monitoring tools to investigate system, middleware, Talend, and database connectivity issues
- Strong troubleshooting, documentation, and communication skills
- Ability to work independently and with cross-functional technical teams
- Willingness to participate in on-call rotation and production support
- Bachelor's degree in Information Technology, Computer Science, Engineering, or a related field preferred. Equivalent hands-on experience may be considered
- Experience supporting FedRAMP, NIST, federal, or regulated environments
- Experience with Bash, Python, Ansible, PowerShell, or similar scripting tools
- Experience with AWS, Azure, VMware, or hosted infrastructure environments
- Experience with SSL/TLS certificates and secure service communication
- Linux, Red Hat, AWS, Tenable, Security+, or ITIL certifications are a plus
Benefits
- Travel and accommodations will be provided for the in-person interview.
Company Overview