Be an Infrastructure Engineer on one of the most high profile and significant cybersecurity systems in the US ECS seeks an experienced Infrastructure Engineer to support the operations and maintenance for the network and system environment of the Department of Homeland Security's Continuous Diagnostics Mitigation (CDM) project, which is being used by every Federal agency. This is an important project for our company and will be a resume builder for you. In this role you will support hands-on administration including semi-annual product upgrades, systems patching, and proactively monitor system components to assess and improve system performance, including the ingest of large datasets on a daily basis. US Citizens Only - This is a mandatory requirement of our contract. Candidate must be able to obtain TS/SCI Clearance and DHS Suitability. Position Responsibilities: Working alongside a dynamic operations team that includes technical engineers, DevOps engineers, development teams and technical leadership, the Infrastructure engineer will support the existing windows-based COTS application and ultimately will need to be comfortable with transitioning to a completely new Linux platform environment. The position will focus on managing all systems administration duties including troubleshooting and resolving issues at the operating system or server level. The successful candidate will bring experience troubleshooting network connections, performance degradation, and diagnosing system issues to provide rapid remediation. The team will routinely interact with government stakeholders to communicate status, issues and progress. You'll be working with a talented team onsite in Fairfax, VA developing a leading-edge enterprise system that will protect Federal IT systems across the US It's an exciting project that will help many people. You must be able to achieve an active TS/SCI and be able to pass a government background check to achieve DHS Suitability. The successful candidates will have the following experience and required skills: Bachelor's Degree (IT or relevant STEM degree) 2+ years administering and troubleshooting 'N' tier web applications to include database servers, services servers, and web servers in Windows and Linux environments 2+ years managing the deployment, maintenance and operations of web-based systems in Windows and Linux environments 2+ years basic network administration and troubleshooting Proven expertise in at least one infrastructure application such as: Active Directory, monitoring systems, DR/BC software, log aggregation, etc Experience supporting web-based systems performance analysis and optimization Firm understanding of Public Key Infrastructure (PKI) concepts Knowledge of Security Technical Implementation Guides (STIGs) and how to configure them Knowledge of general automation practices Understanding of patch automation concepts and capabilities (eg WSUS) Demonstrated ability to apply an understanding of systems administration and operations to proactively identify and remediate day-to-day technical and operational challenges Experience troubleshooting connectivity issues across all layers of the TCP/IP stack Excellent written and verbal communication skills Proven ability to interact with customer stakeholders, including senior leadership It's a plus if you have: Powershell automation experience Experience working with RSA Archer GRC Experience troubleshooting messaging queuing technologies, especially RabbitMQ Database Management (SQL Server, PostgreSQL, ElasticSearch, etc ) Experience working as a Cyber Security professional Experience with CI/CD environments Experience supporting routing troubleshooting and analysis, as a helpdesk engineer for a web-based Windows and/or Linux applications Solid understanding of Systems Architecture and component integration concepts Microsoft Certified Solutions Expert (MCSE) Linux Professional Institute (LPI): LPIC System Administrator CISSP Certification DHS Suitability Location Requirements: Willing to work full-time onsite in Fairfax, VA Job Type: Full-time Start Date: Immediate About Tellenger: Tellenger, Inc. is a is a CMMI Level 3 software design and IT strategy firm that specializes in developing complex, custom software to help Government agencies achieve their objectives. We craft custom web-based software apps ranging from complex, enterprise-level builds to traditional websites and mobile technology. Our strength is aligning an organization's objectives to the right technology, then building the solution. Founded in July 2007, we have multiple long-term government contracts as well as private sector clients making for interesting and diverse work. An outcome of the quality of our work has resulted in the company achieving significant growth each year in business.