Job Description TMC Technologies is in search of a Principal Systems Engineer with a specific focus on Unix/Linux engineering. The Principal System Engineer (Unix/Linux) will be responsible for the design, deployment, testing, certification, patching, addressing interoperability issues, not only of the base operating system, but for all support libraries, components and application dependencies. The candidate must be a US Citizen and possess an active Top Secret clearance to start due to federal contract requirements. Specific responsibilities of the Principal System Engineer (Unix/Linux) include the following: - Serve as the advanced knowledge expert for all Linux environments. - Create and maintain bare-metal and virtual machines with the appropriate distribution of Linux and network configuration, using tools that include Satellite Server, Puppet and BigFix. - Provision/configure the required software onto servers, such as web servers and databases. - Evaluate, improve, and maintain the information security throughout the Linux infrastructure. - Monitor and correct critical server issues and process for failures and performance bottlenecks. - Manage and monitor all installed systems and infrastructure. - Possess excellent knowledge base in DNS, DHCP, LDAP, SMTP, and integration with Windows to solve technical and functional issues. - Install, configure, test and maintain operating systems, application software and system management tools. - Proactively ensure the highest levels of systems and infrastructure availability - Maintain security, backup, and redundancy strategies - Write and maintain custom scripts to increase system efficiency and lower the human intervention time on any tasks. - Participate in the design of information and operational support systems - Provide 4th level support. - Build new baselines with the appropriate security and access controls to include DISA STIGS and required security controls. Updated baselines will be required quarterly and new versions within 90 days of the manufacturer’s release to production and full DISA STIGS. - Engineer multi factor authentication between Linux environments and the enterprise Windows infrastructure components. - Engineer solutions for baselines to operate in full standalone mode, domain mode, and fully integrated mode for all classification levels and enclaves. - Work with the developers to transition applications from one platform to another to include from physical to virtual and virtual to cloud. - Work with security components to resolve any security findings or vulnerabilities and apply fixes or updates as well as solutions to achieve closure. - Liaise with vendors and other IT personnel for problem resolution - Ensure technical documentation exists for all systems and is kept up to date to include inventory and patch levels of all systems to include hostnames, property numbers, IP addresses, enclave, number of cores, number of processors, admin passwords, certificates, and service accounts on a monthly interval. - Integrate systems with Windows as it applies to authentication and core services dependencies such single sign-on and Active Directory. Engineer and implement solutions for multi factor authentication with FBI standardized software and hardware. - Document system configurations to include passwords, access controls, version number, and revision numbers, patch levels, and inventory to include hostnames, TCP/IP addresses, number of processors, and number of cores, memory, and license keys. - Continually transition knowledge to the government staff through training and assistance on how to use the technology using industry best practices. Job Requirements Active Top Secret security clearance Systems Engineer skill set with focus on Unix/Linux based systems such as Red Hat Linux, Solaris, SuSE, and CentOS Minimum of Red Hat Certified Engineer (RHCE), a bachelor’s degree, and 6+ years of experience or Red Hat Certified Administrator (RHCA) and, a bachelor’s degree preferred and 8 years required We are equal opportunity/affirmative action employers, committed to diversity in the workplace. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, gender identity, sexual orientation, national origin, disability, or protected veteran status, or any other protected characteristic under state or local law.