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Sr. Systems Security Engineer / AD -3595320
Buffalo, NY
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Lighthouse Technology Services is partnering with our client to fill their Senior Systems Engineer – (AD / Infra Security / Automation) position! This is a 12+ month contract opportunity and can be hybrid in Buffalo, NY. This role will be a W2 employee of Lighthouse Technology Services. No C2C.



What You'll Be Doing:


  • Administer and support core infrastructure technologies with a strong focus on Active Directory, incident and request management.
  • Manage and resolve technical incidents, service requests, and escalations while ensuring timely communication and high service quality.
  • Support and maintain security technologies including ProxySIEMMicrosoft Entra IDDLP, and Firewall platforms.
  • Design, implement, and improve infrastructure solutions for complex enterprise environments across server, client, and virtual technologies.
  • Troubleshoot advanced system, network, and security issues by identifying root causes and implementing long-term solutions.
  • Gather, analyze, and document business and technical requirements, then translate them into structured, scalable solutions.
  • Develop and enhance automation processes and tools to improve efficiency, reduce manual effort, and strengthen operational consistency.
  • Collaborate with cross-functional teams, stakeholders, and technical partners to deliver secure and reliable technology solutions.
  • Ensure supported technologies integrate effectively with other systems, applications, and enterprise services.
  • Contribute to continuous improvement initiatives by recommending better processes, tools, and technical standards.


What You’ll Need to Have:


  • 6+ years of professional experience in a technical engineering role supporting infrastructure, systems design, or complex enterprise technologies.
  • Strong hands-on experience with Active Directory administration and enterprise identity management.
  • Proven background in incident management and request management within a production support environment.
  • Experience supporting security platforms such as ProxySIEMMicrosoft Entra IDDLP, and Firewall technologies.
  • Knowledge of automation tools and scripting to streamline operational processes.
  • Strong understanding of server, client, and virtualization technologies.
  • Advanced troubleshooting and root cause analysis skills across infrastructure and security environments.
  • Ability to gather requirements and translate business needs into high-quality technical solutions.
  • Strong analytical mindset with a process-driven and logical approach to problem solving.
  • Excellent written and verbal communication skills with the ability to work independently and collaboratively.
  • Ability to learn quickly and adapt in a fast-paced, evolving environment.



Pay Range: $55 - $65/hr


Questions about any of our jobs? Email us at recruiting@lhtservices.com


View all of our open jobs here: jobs.lhtservices.com


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