Senior UNIX System Engineer

Senior UNIX System Engineer at OSC Edge Senior UNIX System Engineer at OSC Edge in Radford, Virginia Posted in 10 days ago.

Job Description:

This position is expected to start late Q3- early Q4 of 2026. Qualified candidates are encouraged to review the full job description. Applicants are strongly encouraged to apply even if they do not meet 100% of the listed qualifications. Final position requirements including education, training, certifications, etc., will be defined by the Government at solicitation release and may differ from what is listed here. As the Senior UNIX System Engineer, the candidate will support, administer, maintain, and sustain the server platforms hosted in enterprise IT environments. In this role, the Senior UNIX System Engineer will support the patching, compiling, securing, and troubleshooting of servers in a heterogeneous environment. In addition, the Senior UNIX System Engineer will perform system updates and server configurations as well as be responsible for implementing changes in multiple environments from development to production.

Responsibilities:

Installs, protects, recovers, and modernizes the application hosting systems and capabilities (including servers, storage, databases, and other essential infrastructure) needed to provision enterprise IT applications to the user community Builds, sustains, patches, backs-up, and recovers a fleet of physical servers, virtual hosts, and virtual machines in multiple network environments Executes performance testing and optimization to meet performance specifications, monitor and report on system utilization rates, and service capacities Builds and provisions physical Linux servers, using a mix of appliances, stand-alone, clustered, and/or high-availability designs; configure and sustain all necessary hardware and software configurations to meet design goals, support includes configuring server parameters, configuring network services, requesting, and applying IP addresses, troubleshooting, and service verification Builds and sustains global policies in support of systems and users across all network enclaves Archives and decommissions physical and virtual servers Plans, executes, and documents mission-application baseline specification changes, to include changes to high-availability, fault-tolerant system designs, cluster-aware applications, client-server applications, web-enabled applications, and other n-tier application architectures Supports and executes migrations of server-hosted applications to a mix of Public and Private Cloud environments; verifies before and after services; and maps, builds, sustains, and validates interfaces between data systems Provides verification of data owners, authorized submitters, and logon identifications (IDs), existing level of privileges, and system security configurations for specific systems identified by the Government Installs, secures, and troubleshoots website-hosting servers, web-application servers, and websites by identifying system requirements, building systems, installing updates, deploying applications, securing the systems from cyber security attacks, deploying application and website content updates, and configuring authentication and authorization to meet cyber security mandates Performs other tasks as required by OSC and the Government contracting office

Required Qualifications/Education and Experience:

High School Diploma or GED Must have and maintain a Secret Clearance Must possess an active Security+ certification Must have or be willing to obtain a Computing Environment (CE) Certification, specifically RedHat (RHCE) or equivalent Five or more years' experience with UNIX SysAdmin/IT Engineer (task automation) Three or more years' experience with patching; VLAN networks; SOPs, and

DNS/SFTP/SMTP/NTP

Five or more years' experience as a Unix Systems Administrator or IT Engineer with experience in automating assigned tasks Three or more years' experience in patch management with understanding how to apply security updates to systems via YUM or RPM Three or more years' experience working in an environment with complex networks while demonstrating experience using VLANs, troubleshooting tools such as ifconfig, netstat, ssh and telnet as well as how to harden a system using firewalld/iptables and hosts Three or more years' experience creating, maintaining, following Standard Operating Procedures for repeatable processes, disaster recovery, and common problem resolution Three or more years' experience configuring and maintaining key services such as DNS, SFTP, SMTP, and NTP - Strong interpersonal skills and willingness to be a team player Strong interpersonal skills and willingness to be a team player Experience in Computer Science or IT Preferred Qualifications/Education and Experience. Bachelor's degree in computer science or equivalent years of experience Three or more years' experience with SELinux - understand the basic and advanced management and configuration of SELinux Experience supporting Cybersecurity patch management and Security Technical Implementation Guides (STIG), Security Requirements Guides (SRG), RMF, Security Control Assessor-Validator (SCA-V), and Cyber Operational Readiness Assessments (CORA) Experience deploying large scale HW and SW systems enhancements and/or upgrades for an organization with widely distributed geographic sites Experience with current and emerging network and infrastructure management technologies and business practices OSC Edge delivers a total rewards package that we know will attract, engage and retain top talent. Key elements of our package include a competitive base pay and a comprehensive benefits package: We offer eligible employees with an opportunity to enroll in a variety of benefits offerings. Here are just some of our benefits for our US based positions: Medical/ Dental/ Vision Life insurance and AD&D Flexible Spending Accident, Critical Illness and Hospital Indemnity coverage 401(k) and ROTH retirement options and company match Pet Insurance Identify Theft and Fraud Protection coverage

About OSC Edge:

Founded in 2008, what started as a small business has grown into a diverse and innovative global team owned by Cook Inlet Region, Inc. an Alaska Native Regional Corporation. As a US Federal contractor, we are a dedicated IT Service Provider supporting the Departments of the Army, Navy, Air Force, DoD Educational Institutions, and large corporate entities. Our expertise is in Cloud Computing, Cyber Security, Compliance Management, Enterprise Architecture, IT Support, and CSfC. If you are passionate about making a difference and thrive in a dynamic and collaborative environment, we invite you to apply to join our team. Equal Opportunity Employer/Veterans/Disabled Equal employment opportunity, including veterans and individuals with disabilities. PI284243033