Sr. Systems Engineer

Summit Technologies

  • Washington DC
  • Permanent
  • Full-time
  • 2 months ago
Job Description:Summit Technologies, Inc. is looking for a Sr. Systems Engineer to join our client’s team, an independent US government agency. This role is ideal for an experienced systems engineer with broad technical depth across Microsoft enterprise platforms, Unix/Linux systems, and Zero Trust Architecture (ZTA) components. The role offers an opportunity to support infrastructure modernization, hybrid identity and access integration, and implementation of secure enterprise environments aligned with agency goals.The ideal candidate will be a subject matter expert in Microsoft and Linux systems administration with hands-on experience in identity federation, enterprise directory services, secure access platforms, and modern endpoint and application hosting solutions. Familiarity with tools such as Zscaler, Oracle, and integration of Zero Trust frameworks is highly desirable. This is a hybrid role based in Washington, D.C. Candidates must be eligible for a Public Trust clearance.Key Responsibilities:
  • Lead the design, implementation, and lifecycle support of enterprise infrastructure across Windows, Linux, and hybrid environments.
  • Serve as a senior escalation point for complex infrastructure issues, especially in Microsoft Active Directory, Entra ID (formerly Azure AD), and Unix/Linux OS environments.
  • Provide expert support for:
  • Active Directory, Group Policy, and identity federation (AD FS, Entra ID, conditional access).
  • Windows Server and IIS-based application hosting.
  • Unix/Linux system administration and troubleshooting (e.g. RedHat, Solaris).
  • Integration of COTS/third-party applications in secure environments.
  • Hybrid and cloud identity, including Entra ID Connect and SSO/MFA policy design.
  • PaaS data processing services such as Data Bricks/Data Factory.
  • Support the implementation and integration of Zero Trust Architecture components, including secure web gateways, access brokers, and endpoint telemetry tools.
  • Provide subject matter expertise in Zscaler configuration and policy enforcement (e.g., ZIA, ZPA).
  • Support systems with Oracle database or application backends, including basic troubleshooting and system integration tasks.
  • Develop and maintain technical documentation such as SOPs, architecture diagrams, platform configurations, and change records.
  • Automate routine administrative and operational tasks using scripting tools such as PowerShell, Bash, or Python.
  • Collaborate with security, network, and operations teams to support secure, scalable infrastructure aligned with compliance frameworks.
Required Qualifications:
  • Bachelor’s degree in Systems Engineering, Computer Science, Information Technology, or related field; or 8+ years of equivalent experience in lieu of a degree.
  • At least six (6) years of hands-on experience in enterprise system engineering roles.
  • Strong expertise in Windows Server, Active Directory, Group Policy, and hybrid identity platforms (e.g., Entra ID).
  • Demonstrated experience supporting and troubleshooting Unix/Linux operating systems.
  • Experience working with Zero Trust Architecture concepts and tools, especially Zscaler.
  • Familiarity with Oracle systems, including application integration or backend support.
  • Proficiency in scripting and automation using PowerShell, Bash, or Python.
  • Excellent troubleshooting skills, technical documentation abilities, and collaboration across technical domains.
Preferred Qualifications:
  • Experience with identity and access management integrations (e.g., AD FS, Entra ID, conditional access policies).
  • Knowledge of endpoint and network security tools aligned with ZTA principles.
  • Experience with enterprise web application hosting (e.g., IIS) and secure configurations.
  • Industry certifications: Azure, ITIL 4, Windows Server Hybrid Administrator, CompTIA Linux+, Zscaler Certified Associate, or equivalent.
Security Clearance:
  • Must be eligible to obtain and maintain a Public Trust clearance.
If you feel you are qualified and want to be considered for this position, please supply the following to:
6bfwymya4ad48rk86u4c6kbo5c@crelate.net , and please put the job number ‘6832’ in the subject line:
  • Updated resume including MM/YYYY for each employer.
  • Best times/dates to interview (plus phone # you can best be contacted at).
  • Availability to start once given formal offers.
Summit Technologies Inc. appreciates your interest. We will contact the best matching prospects and will consider you for future opportunities. We will not submit your resume without your prior knowledge and consent. We are an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, sexual orientation, gender identity, national origin, disability or veteran status.

Summit Technologies