Linux Systems Administrator

Business Integra; Fairfax (VA); On-site; USD 90,000 - 130,000; Full time

Job summary

Business Integra (BI) is a global IT services provider delivering end-to-end solutions in development, deployment, integration and support. This full-time in-person role focuses on admin of large-scale Linux-based systems and related technologies.

You will support 100+ developers, manage virtualization platforms, back up critical services, and stay current with evolving tech to enhance enterprise systems.

Qualifications

• Experience with Linux (Red Hat desired).
• HP Proliant servers experience.
• HP/IBM SAN products experience.
• Knowledge of clustered or parallel file systems (GPFS, GFS, OCFS2).
• System security, hardening, and accreditation (e.g. DCID 6/3, ICD-503).
• Automated OS installation.
• Virtualization: VMware, Red Hat Xen, AWS.
• Oracle DB servers (single node and RAC).
• System performance monitoring and tuning.
• Creating, debugging, and enhancing scripts (bash, csh, Perl, Python, expect).
• Source control systems (CVS, SVN, Git).
• Networking basics: NAT, DNS, LDAP, NIS, NFS, iptables.

Responsibilities

• Support development and deployment of large-scale systems across multiple locations.
• Provide second-tier OS support to the operating system and 100+ developers.
• Maintain 99.9% Linux availability with some Windows Server systems.
• Understand IP networks, routing, switching, VLANs, and multicast.
• Adapt to changing requirements and implement new technologies.

Skills

IP networks understanding

Linux administration

Team training

Education

Bachelor's degree in computer-related discipline

Tools

VMware

Red Hat Xen

Amazon Web Services

CVS

Subversion (SVN)

Git

Oracle database

Job description

Business Integra (BI) is an award-winning global provider of information technology (IT) services and solutions infused with leading-edge technologies; and has been recognized by Inc. magazine as one of the fastest growing 500 companies across both government and commercial sectors. Located just outside of our Nation’s Capital in suburban Maryland - BI provides end-to-end solutions in application development, consulting, and re-engineering across all major technologies. Our solutions and services help build enduring relationships with our clients.

Job Description

Interview: In-Person

Duration: Full-time

Key Responsibilities

• Support the development and deployment of large-scale systems. These systems are running tens to thousands of servers per site, installed at dozens of locations worldwide. The candidate must be able to operate under general guidance with limited direct supervision.
• You will be part of a development, deployment, integration, and support team. This position will provide second tier support to the operating system and primary support to all other users, including 100+ software developers.
• The systems are 99.9% Linux (RedHat 5/6/7), with some (< 10) Windows Server 2008/2012 Systems.
• The system administrator must have a general understanding of IP networks, routing, switching, VLANs, and multicast.
• Candidate must readily adapt to changing requirements; keep up-to-date on emerging technologies and be ready to help implement these new products and technologies to enhance the system.

Technical Requirements

• Experience with Linux (Red Hat desired)
• HP Proliant series servers
• HP and IBM SAN products
• Clustered or parallel file systems (e.g., GPFS, GFS, OCFS2)
• System security, hardening, and accreditation (e.g. DCID 6/3, ICD-503)
• Automated OS installation
• Virtualization – Vmware, Red Hat Xen, Amazon Web Services
• Oracle database servers (single node, and RAC)
• System performance monitoring, and tuning
• Performing, monitoring, and designing system backup plans
• Create, debug, and enhance scripts (e.g. bash, csh, Perl, ruby, python, expect)
• Basic knowledge of switching, routing, IP addressing, and networks
• Experience with multicast
• Train others on system operation and maintenance duties
• Source code control systems, both use, and administration (cvs, subversion, git)
• Configuration and use of - nat, dns, ldap, nis, nfs, iptables

Education

• A Bachelor’s degree in computer related discipline is desired but not mandatory.
• A candidate may substitute relevant work experience.