Systems Engineer

Please note: This role is contingent upon a contract award. While it is not an immediate opening, we are actively conducting interviews and extending offers in anticipation of the award.The Work:ICF is seeking an experienced Systems Engineer to support the design, implementation, operation, and maintenance of enterprise network infrastructure supporting critical federal programs. The Systems Engineer will be responsible for ensuring the reliability, availability, performance, and security of network hardware, operating systems, and communication infrastructure. This role requires strong technical expertise in network engineering, systems administration, troubleshooting, and infrastructure modernization within complex enterprise environments.Job Location:This position is remote and requires that the job be performed in the United States. If you accept this position, you should note that ICF monitors employee work locations and blocks access from foreign locations/foreign IP addresses and prohibits personal VPN connections.Our core work hours are 10:00 AM – 4:00 PM Eastern Time, with flexibility to start earlier or work later depending on your time zone. Please note that project meetings may occasionally begin before 10:00 AM Eastern to accommodate client requirements.Limited travel may be required for customer meetings, infrastructure deployments, or team collaboration.What You Will Do:The selected candidate will support the administration, maintenance, and enhancement of enterprise network infrastructure while ensuring high availability and operational performance. The Systems Engineer will perform systems engineering activities across network hardware, operating systems, and communication technologies while providing technical support, troubleshooting complex issues, and assisting with infrastructure modernization initiatives. This individual will work closely with network engineers, system administrators, cybersecurity personnel, and project leadership to maintain secure and reliable IT operations.Responsibilities:Supervise, coordinate, and perform additions, upgrades, and changes to enterprise network hardware, operating systems, and connected devices.Investigate, analyze, recommend, configure, install, and test new network hardware, software, and infrastructure components.Provide day-to-day operational support for enterprise network infrastructure and operating systems.Monitor system utilization, network performance, and response times to ensure optimal system availability.Diagnose and resolve complex network, communications, and infrastructure issues.Troubleshoot network connectivity at both the physical and logical layers using network measurement tools and diagnostic software.Perform hardware testing, configuration validation, and communication protocol analysis.Participate in the planning, design, technical review, implementation, and deployment of new network infrastructure and operating systems.Support voice and data communication networks, ensuring reliable and secure network services.Maintain network infrastructure standards, configurations, and documentation.Configure, monitor, and support TCP/IP networking and other enterprise communication protocols.Collaborate with cybersecurity, systems administration, and engineering teams to ensure secure network operations.Provide technical consultation, mentoring, training, and operational support to IT staff as directed.Develop and maintain technical documentation, network diagrams, standard operating procedures, and system configurations.Support infrastructure modernization, performance optimization, and continuous improvement initiatives.Basic Qualifications:Bachelor's Degree in Computer Science, Information Systems, Computer Engineering, or a related technical discipline.8+ years of experience supporting enterprise network infrastructure and systems engineering.US citizenship is required by government agency.Candidate must be able to obtain and maintain the required government security clearance.Candidate must reside in the U.S., be authorized to work in the U.S., and all work must be performed in the U.S.What We Would Like You to Bring with You:Experience configuring, administering, and troubleshooting network hardware and operating systems.Experience supporting enterprise voice and data communication networks.Strong understanding of TCP/IP networking, routing, switching, and network communication protocols.Experience diagnosing and resolving complex infrastructure and communication issues.Experience supporting infrastructure implementation, upgrades, and technology refresh initiatives.Hands-on experience with:Enterprise network infrastructure design and administrationTCP/IP networking and communication protocolsRouting and switching technologiesWindows Server and Linux operating systemsNetwork monitoring and performance management toolsNetwork diagnostic and troubleshooting toolsDNS, DHCP, VPN, and firewall technologiesVirtualization technologies (VMware, Hyper-V, or similar)Cloud networking (AWS, Microsoft Azure, and/or Google Cloud Platform)Infrastructure automation and scripting (PowerShell, Python, Bash, or similar)Network security best practices and system hardeningExperience supporting Federal Government IT infrastructure is preferred.Industry certifications such as Cisco CCNA/CCNP, CompTIA Network+, Security+, Microsoft, VMware, or equivalent certifications are highly desirable.Experience supporting highly available, mission-critical enterprise environments.Familiarity with ITIL processes and infrastructure lifecycle management.Experience participating in disaster recovery, business continuity, and infrastructure resilience planning.Professional Skills:Strong analytical and troubleshooting skills with the ability to diagnose and resolve complex technical issues.Excellent verbal and written communication skills.Strong organizational skills with exceptional attention to detail.Ability to manage multiple priorities and support critical operational environments.Demonstrated ability to work independently while collaborating effectively with multidisciplinary technical teams.Commitment to delivering reliable, secure, and high-performing enterprise infrastructure.Experience supporting remote or hybrid operational teams is preferred.Bot and Third-Party ApplicationsPlease note that this application must be submitted directly by the applicant for consideration.Failure to do so may result in the application being excluded for consideration. Applicants needing an accommodation for disability or religious purposes in connection with the application process should contact for assistance.Working at ICFICF is a global advisory and technology services provider, but we’re not your typical consultants. We combine unmatched expertise with cutting-edge technology to help clients solve their most complex challenges, navigate change, and shape the future.We can only solve the world's toughest challenges by building a workplace that allows everyone to thrive. We are an equal opportunity employer.Together, our employees are empowered to share theirexpertiseand collaborate with others to achieve personal and professional goals. For more information, please read our EEOpolicy.We will consider for employment qualified applicants with arrest and conviction records.Reasonable Accommodations are available, including, but not limited to, for disabled veterans, individuals with disabilities, and individuals withsincerely heldreligious beliefs, in all phases of the application and employment process. To requestan accommodation,please email   and we will be happy toassist. All information you provide will be kept confidential and will be used only to the extentrequiredto provide needed reasonable accommodations. Read more about workplace discrimination rightsor our benefit offerings which are included in the Transparency in (Benefits) CoverageAct.Candidate AI Usage PolicyAt ICF, we are committed to ensuring a fair interview process for all candidates based on their own skills and knowledge. As part of this commitment, the use of artificial intelligence (AI) tools to generate orassistwith responses during interviews (whether in-person or virtual) is notpermitted. This policy is in place tomaintainthe integrity and authenticity of the interview process. However, we understand that some candidates may require accommodationthat involves the use of AI. Ifsuch anaccommodation is needed, candidates are instructed to contact us in advance at  Weare dedicated to providingthe necessary support to ensure that all candidates have an equal opportunity to succeed. Pay Range - There are multiple factors that are considered in determining final pay for a position, including, but not limited to, relevant work experience, skills, certifications and competencies that align to the specified role, geographic location, education and certifications as well as contract provisions regarding labor categories that are specific to the position. The pay range for this position based on full-time employment is:$119,323.00 - $202,850.00Nationwide Remote Office (US99)SummaryLocation: Reston, VAType: Full time