Senior Systems Engineer - Top-Secret (TS) clearance

Company Overview:

Join a fast-growing company highly experienced in cyber security, cloud computing, virtualization, big data analytics, and project management! IMTS offers competitive compensation, excellent benefits including tuition reimbursement and employer-contributed 401K, and referral bonuses. We work with the best customers on-site at top government agencies.

Job Title: Senior Systems Engineer

Primary Location: Reston, VA or Washington, DC

Clearance: Top-Secret (TS) Clearance

Position Summary:

We are seeking a Senior Systems Engineer with a minimum of 8 years of experience to lead and support complex IT infrastructure projects, with emphasis on network systems, virtualization, cloud platforms, cybersecurity, and systems integration. This role requires deep technical expertise, problem-solving skills, and the ability to work across multiple domains in a fast-paced environment. The ideal candidate will be well-versed in designing, managing, and optimizing both on-premises and cloud-based infrastructure, while also mentoring junior staff and coordinating with cross-functional teams.

Responsibilities:

• Design, implement, and maintain complex network infrastructure, including server environments and attached devices.

• Provide direct operational support for network hardware and operating systems, including performance monitoring and troubleshooting.

• Lead the design and integration of network operating systems and infrastructure for voice and data communications.

• Configure, install, test, and support network hardware/software and ensure compatibility across all components.

• Perform system management and integration functions including virtualization, patch management, backup and storage systems.

• Maintain network protocol standards including TCP/IP and ensure systems remain compliant with all approved patches.

• Troubleshoot issues at both physical (hardware) and logical (software/protocol) levels.

• Provide Tier-3 support and consult with internal IT staff, delivering technical training and documentation when needed.

• Participate in Agile-based project planning, sprint reviews, and backlog grooming using JIRA and Confluence.

• Develop and maintain SOPs, quick reference guides, and system documentation.

• Design and implement client/server architecture and strategies, ensuring secure and efficient system operations.

• Advise management on technology solutions, future projects feasibility, and infrastructure scalability.

Required Qualifications:

• Active Top Secret clearance (required).

• 8+ years of experience in systems engineering, network infrastructure, or IT operations.

• Strong scripting experience with Python, PowerShell, JSON, and YAML.

• Deep understanding of virtualization technologies, network administration, and systems integration.

• Proven experience with AWS (GovCloud, C2S, SC2S) including services like EC2, EFS, EBS, SQS, DLQ, Lambda, SNS.

• Familiarity with Microsoft Defender for Endpoint and enterprise antivirus solutions.

• Proficient in log management, SSH, and Splunk (dashboards, monitoring, and alerts).

• Experience with Cross Domain Systems such as Everfox or Forcepoint.

• Hands-on with GitLab, Agile methodologies, JIRA, and Confluence for team collaboration and project tracking.

• Deep understanding of networking principles and tools.

• Ability to design, deploy, and secure complex enterprise systems and provide high-level technical support.

• Excellent written and verbal communication skills.

Preferred Qualifications:

• Industry certifications (e.g., AWS Certified Solutions Architect, CISSP, Security+, Microsoft certifications).

• Experience with system certification and accreditation processes.

• Familiarity with government IT environments and security compliance frameworks.