MANTECH seeks a motivated, career and customer-oriented Systems Engineer III to join our team in Annapolis Junction, Maryland.

ManTech is currently seeking Systems Engineer III to join our team at Annapolis Junction, MD. We are seeking a Senior Systems Engineer who is a seasoned IT professional responsible for designing, implementing, and a top-level trouble shooter supporting a high-level architecture of an organization's backend infrastructure. You will communicate with other project personnel, Government stakeholders, and senior executives.

Responsibilities include but are not limited to:

• Administer and maintain IT infrastructure by utilizing expert-level knowledge of the Linux operating system, along with deep expertise in server administration, virtualization, and cloud platforms like AWS or Azure, to manage the organization's backend systems.
• Develop and implement automation solutions through creating scalable automation services using strong scripting and orchestration skills, with proficiency in tools like Python, Bash, and Ansible.
• Design and manage system architecture by applying systems engineering principles to design, implement, and manage the high-level architecture of the organization's backend infrastructure.
• Ensure network and system security through a strong understanding of networking and security fundamentals, including TCP/IP, firewalls, and VPNs, to protect the organization's infrastructure.
• Communicate with stakeholders - Interact directly with government personnel, senior executives, and other project members to discuss technical issues and project status.
• Provide technical guidance and troubleshooting as a top-level troubleshooter, addressing technical considerations, problems, and issues for both internal teams and government stakeholders.

Minimum Qualifications:

• Bachelor's degree in STEM field or Highschool and 13 years of experience; Associates and 11 years of experience in lieu of degree, a candidate holding a relevant master’s degree may be granted 2 years’ experience credit for that extra education, a candidate holding a relevant PhD degree may be granted 4 years’ experience credit for that extra education.
• 5 years of position-relevant work experience.
• DoD 8570.01-m IAT Level II.
• Strong proficiency in scripting and automation, with hands-on experience in Python, Bash, and an infrastructure orchestration tool like Ansible.
• Experience in front-end web development to create internal tools and solutions.
• Proven background as an Orchestration Engineer or in a similar role focused on building scalable automation services.
• Solid grasp of TCP/IP networking, firewalls, VLANs, and VPNs.
• Expert-level knowledge of the Linux operating system.

Preferred Qualifications:

• Experience with full-stack development, including creating and interacting with databases and APIs.
• Knowledge of Infrastructure as Code (IaC) principles, preferably with experience using Terraform.
• Familiarity with public cloud platforms (AWS, Azure, GCP) and container technologies (Docker, Kubernetes).
• Proficiency with virtualization platforms such as VMware vSphere or Microsoft Hyper-V.
• Exceptional troubleshooting and problem-solving skills, with a talent for systematically diagnosing and resolving complex technical issues.
• A foundational understanding of traditional Systems Administration principles
  

Clearance Requirements:

• Must have a current/active TS/SCI
  

Physical Requirements:

• The person in this position must have the ability to perform tasks while stationary 50% of the time at a computer, with specific emphasis on visual acuity for close-range work. Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers, via email, phone, and or virtual communication, which may involve delivering presentations