Lead Systems Engineer

MANTECH•Laurel, MD

1d•$128,000 - $214,400•Onsite

About The Position

MANTECH seeks a motivated, career- and customer-oriented Lead System Engineer to join its team in Laurel, Maryland. The role oversees, maintains, and modernizes enterprise server infrastructure across on-premises and AWS cloud environments. It delivers mission-critical administration, systems integration, automation, and security compliance in support of program objectives.

Requirements

Bachelor’s degree in Systems Engineering, Computer Science, or a related discipline and 14+ years of experience as a Systems Administrator or Cloud Engineer on programs of similar scope; alternatively, 19+ years of total systems engineering experience in lieu of a degree.
Active DoD IAT Level II certification, such as Security+ CE, or ability to obtain certification within 60 days of the program start date.
Demonstrated hands-on expertise administering Linux operating systems.
Experience administering and supporting Windows Server environments, including Active Directory, DNS, or Group Policy management.
Extensive technical experience managing, deploying, and supporting enterprise infrastructure in AWS cloud environments.
Proficiency in infrastructure automation and scripting using Salt, BASH, Python, or Ansible.
Strong technical background in IAVA remediation, security controls, and enterprise monitoring tools such as Splunk or HCL BigFix.
Active TS/SCI with Polygraph clearance.

Nice To Haves

Hands-on experience with AWS Infrastructure as Code tools, specifically AWS CloudFormation and AWS Packer.
Experience configuring and managing GitLab and GitLab CI/CD automation pipelines.
Familiarity with enterprise data flow architectures and pipeline integration using Apache NiFi.
Working knowledge of advanced Windows enterprise services, including IIS, Active Directory Certificate Services (AD CS), and Active Directory Federation Services (AD FS).

Responsibilities

Oversee and maintain enterprise server infrastructure across hybrid environments, including on-premises hardware and AWS cloud environments.
Administer, troubleshoot, and maintain Linux operating systems (Amazon Linux 2023 and RHEL 8/9) and Windows Server (2016/2022), as well as Active Directory, DNS, and Group Policy.
Design and execute automation scripts and infrastructure workflows using Salt, BASH, Python, and Ansible to improve system efficiency and reduce operational overhead.
Maintain system security compliance through IAVA remediation, vulnerability management, and alignment with enterprise security baselines.
Resolve complex, interconnected systems issues and collaborate with cross-functional engineering teams.
Support DevOps and enterprise services by maintaining GitLab CI/CD pipelines, Windows enterprise services (IIS, AD CS, AD FS), and Apache NiFi data flows.
Manage concurrent priorities independently in a fast-paced mission environment and produce clear technical documentation and communication.