> Markdown version of [/jobs/ext/2496438-systems-engineer-iii](https://www.wearedevelopers.com/jobs/ext/2496438-systems-engineer-iii). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Systems Engineer III - **Company:** National Information Solutions Cooperative (NISC) - **Location:** Atlanta, GA, United States (Remote available) - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Proxmox, Active Directory, Amazon Web Services, Apache HTTP Server, Apache Tomcat, Application Firewall, Systems Engineering, Microsoft Azure, Bash Shell, Cloud Computing, Configuration Management, Cyber Security, System Configuration, Multi-Factor Authentication, Monitoring of Systems, Hyper-V, Internet Information Services (IIS), Virtual Private Networks (VPN), Information Systems Security Architecture Professional, Python (Programming Language), Network Troubleshooting, Linux System Administration, Windows Servers, Nagios, Nginx, Windows PowerShell, Red Hat Enterprise Linux, Azure Active Directory, Ansible, Systems Integration, Virtual Local Area Networks, Virtualization Technology, Zabbix, Scripting, Computer Networking Systems, Transport Layer Security, Okta, Firewalls (Computer Science), Containerization, Information Technology, Cacti, Nessus, Nutanix, Puppet, Firewall Services Module, Oracle Cloud Infrastructure, SentinelOne Expertise, Qualys, Docker, Vulnerability Analysis, Vmware - **Published:** August 24, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=bb5e90b23cc68e69 ## About the Role * 6+ years of relevant experience in cybersecurity, systems administration, network engineering, or a related technical field. * Experience installing, configuring, and troubleshooting UNIX/Linux and Windows environments. * Experience administering and optimizing application stacks, including IIS, Tomcat, Apache, and NGINX. * Strong networking experience, including configuring switches and SPAN/mirror ports to provide north-south and east-west traffic visibility to NDR platforms such as Darktrace, Suricata, and SIEMonster. * Experience deploying and configuring vulnerability-scanning platforms such as OpenVAS, Nessus, and Qualys. * Experience deploying, administering, configuring, and updating endpoint agents across enterprise environments, including RMM and EDR solutions such as NinjaOne, Action1, CrowdStrike, and SentinelOne. * Experience configuring, administering, and troubleshooting firewalls, VLANs, firewall rules, VPN/SSL connections, and Active Directory integrations. * Experience configuring and deploying centralized multifactor authentication solutions such as Duo, Okta, and Microsoft Entra ID. * Experience with cloud platforms, preferably Oracle Cloud Infrastructure, AWS, or Microsoft Azure. * Experience with virtualization and containerization technologies such as VMware, Microsoft Hyper-V, RHEV, Nutanix AHV, Proxmox, and Docker. * Advanced experience with monitoring platforms such as Zabbix, Nagios, and Cacti. * Advanced experience with automation and configuration-management tools such as Ansible, Puppet, and Chef. * Advanced scripting skills using Windows PowerShell, Bash, Python, or similar languages. * Ability to travel up to 25% to customer sites to support product deployments and post-incident remediation across diverse technical environments. License/Certification: Preferred: * Microsoft and/or Linux systems administration certs. * Red Hat Certified Engineer (RHCE), Microsoft Certified: Windows Server Hybrid Administrator Associate and/or AWS Solution Architect preferred Education: * Bachelor's Degree in Information Technology, Computer Science, or equivalent experience. Minimum Physical Requirements: The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this position. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions. While performing the essential functions of this position, employees must be able to see and communicate. Employees are regularly required to maintain a stationary position, move, and operate computer keyboards or office equipment. ## Description Design, develop, and maintain technical infrastructure that includes network, hardware and/or system software components. This role analyzes SOC service needs and leads the deployment and maintenance of technology solutions while designing infrastructure, network, and security architectures, guiding configuration and support of systems, assisting with cybersecurity investigations, resolving hardware, software, and network issues, and ensuring compliance with industry standards. Candidates should have proven experience across UNIX/Linux and/or Windows environments, network and security infrastructure, endpoint and firewall administration, cloud platforms, virtualization, systems monitoring, automation, and advanced scripting, along with willingness to travel to customer sites as needed., * Analyze business challenges and lead the evaluation and recommendation of technology products and platforms that meet business, technical, and budgetary requirements. * Research and design best-fit infrastructure, network, and cybersecurity architectures. * Lead infrastructure configuration, troubleshooting, and support while ensuring compliance with quality and change-control standards. * Support root-cause investigations of cybersecurity incidents and recommend preventive and corrective measures. * Identify and prioritize improvements to support processes, procedures, and documentation. * Respond to end-user, customer, and internal team inquiries by troubleshooting and resolving hardware, software, system, and network-connectivity issues. * Ensure compliance with applicable industry standards, regulations, security requirements, and best practices. * Collaborate with external vendors and service providers to troubleshoot and resolve technical issues. * Demonstrate initiative by contributing innovative ideas, technical expertise, and creative solutions. * Represent the company at conferences, networking events, and other industry engagements. * Leverage generative AI tools and technologies to enhance productivity, creativity, and problem-solving within the scope of the role. * Perform other duties as assigned. ## Related Videos - [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure) - [Post-Quantum Cryptography: Preparing for Q-Day](https://www.wearedevelopers.com/videos/100179-post-quantum-cryptography-preparing-for-q-day) - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [Streaming AI Responses in Real-Time with SSE in Next.js & NestJS](https://www.wearedevelopers.com/videos/1630-streaming-ai-responses-in-real-time-with-sse-in-next-js-nestjs) - [The Developer Workstation Blind Spot: Why Your Security Stack Can't See What Matters Most](https://www.wearedevelopers.com/videos/100254-the-developer-workstation-blind-spot-why-your-security-stack-can-t-see-what-matters-most) - [This Is Not Your Father's .NET](https://www.wearedevelopers.com/videos/967-this-is-not-your-father-s-net) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Best Paying Jobs in Technology](https://www.wearedevelopers.com/magazine/256-best-paying-jobs-in-technology) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Top-Paying Tech Jobs (with Salaries)](https://www.wearedevelopers.com/magazine/372-top-paying-tech-jobs-with-salaries)