Senior System Engineer

Senior Systems Engineer - San Diego, CA (On-Site) - $180,000-$200,000

Are you a senior systems engineering expert with deep experience in Windows enterprise environments, automation, and secure DoD infrastructure?

This is an opportunity to join a fast-growing defense technology company supporting mission-critical programs that directly impact the U.S. Navy and national security. You'll play a key role in architecting and maintaining secure enterprise systems while driving automation and modernization efforts across classified on-premises and cloud environments.

Who you are:

• 12+ years of experience designing, implementing, and supporting enterprise Windows environments, including Active Directory, DNS, DHCP, and Group Policy.
• Expert-level knowledge of Windows Server 2019/2022, RBAC, PKI, Kerberos, RADIUS, SCCM/MECM, WSUS, and infrastructure automation using PowerShell, Ansible, and Python.
• Strong understanding of DoD cybersecurity requirements including STIGs, CIS Benchmarks, Zero Trust principles, and Infrastructure-as-Code methodologies.
• Active DoD Top Secret clearance and U.S. citizenship required.

What you’ll do:

• Architect, deploy, and maintain secure Windows Server environments across multi-site, multi-domain enterprise infrastructures.
• Lead Active Directory, identity management, certificate services, authentication, patch management, and system hardening initiatives in compliance with DoD security standards.
• Develop and maintain automation solutions using PowerShell, Python, Ansible, and Node.js to streamline provisioning, deployment, configuration management, and operational support.
• Collaborate with software, cybersecurity, Linux, and network engineering teams to support complex systems integration, virtualization, cloud infrastructure, and mission-critical deployments.

Why work here:

• Join a fast-growing defense technology company supporting mission-critical programs that directly impact the U.S. Navy and national security.
• Work alongside experienced engineers, military professionals, and government leaders on high-visibility TACNET and next-generation Navy modernization programs.
• Be part of a collaborative, engineering-driven culture where your ideas matter, your work has a direct impact, and you'll have the opportunity to grow your career on meaningful defense initiatives.
• Comprehensive medical, dental, and vision coverage; 401(k) with company matching; generous paid time off, paid parental leave, and professional development assistance.

What does this position pay?

Compensation is determined by several factors which may include skillset, experience level, and education.

The expected range for this role is $180,000-$200,000 per year . Please note this range is an estimate and actual pay may vary based on qualifications and experience.

What’s next?

Please email your resume to View email address on click.appcast.io if you’re excited to explore this opportunity with our client.

We actively support and promote people of various backgrounds, from race, religion, gender to geographical area, university, lifestyle, and personality type. Proven Recruiting is minority-owned, majority women, and is a strong advocate for diversity and inclusion in the broader community. Apply today!