Senior Security Network Engineer

Company: 4A CONSULTING LLC
Location: Ellicott City
Posted on: February 13, 2026

Job Description:

Job Description Job Description Senior Network Engineer (Security) This position is on-site when required, otherwise remote. Based in Maryland, you will report directly to the Department of Human Services’ (DHS) Information Technology (IT) Assistant Director of Network Services for Technical Services. The primary function of the Senior Network Engineer is responsible for developing, monitoring, implementation, maintenance, and troubleshooting network infrastructure activities across the enterprise. Candidates chosen for an interview will meet the Education, General Experience and Specialized Experience requirements provided below. Candidates should be prepared for at least one on-site interview after initial screening. Work Location: Hybrid on-site in Baltimore, MD and remote as negotiated(21-4.2) Responsibilities/Duties: Responsible for the design and implementation of large data communications or telecommunications networks. Maintains proper records of the designed networks. The network documentation should include network drawings, text descriptions and equipment configurations. Maintains documentation during the installation and implementation processes. Advises OTHS management and provides technical guidance on networking solutions, product plans, and roadmaps. Provides OTHS management with reports on network availability, network performance, and project status. Plans and monitors the installation of communications circuits. Manages and monitors local area networks and associated equipment (e.g., bridges, routers, modem pools, and gateways). Conducts short and long-term plan to meet communications requirements. Plans, designs, and builds DHS’ local area networks (LANs), wide area networks (WANs), from determining cables layout to placement and selection of firewalls, routers, switches, etc. Performs in-depth analysis, develops improvements, and decides what hardware and software are needed to support the network. Looks at current data traffic, estimates how growth will affect the network and create models to predict future network needs. Research new technology and determine what would best support DHS in the future. Prepares tradeoff studies and evaluations for vendor equipment. Generates network monitoring/performance report for LAN/WAN utilization studies. Advises OTHS management and provides technical guidance on networking solutions, product plans, and roadmaps. Provides OTHS management with reports on network availability, network performance, and project status. Performs configuration, implementation, monitoring, problem resolution, and maintenance of firewalls, routers, switches, access points, network access control (NAC), Network Management Systems (NMS), Intrusion Detection Systems / Intrusion Prevention System (IDS/IPS), Virtual Private Networks (VPN’s), and security information and event management (SIEM) system. Use diagnostic programs; and utilities to ensure 99.9% network availability. Interacts with other IT Support staff, other departments (within DHS as well as external agencies), and/or third-party vendors to determine network and infrastructure security requirements for new system implementations, troubleshoot and repair outages and service degradation, including performing research and gathering information, while ensuring network performance is not impacted. Troubleshoots network systems, resolves, and rectifies network issues. Monitors and identifies capacity and performance issues for DHS’s enterprise network infrastructure traffic to ensure continued, uninterrupted operation. Documents trouble reports using Remedy ticket system. Provides accurate and timely updates in tickets. Performs project management tasks such as team building, staff training and scheduling. Plans, schedules, and performs maintenance on network systems to avoid any down time due to networking issues. Provides customer service (with products, services, and recommendations) to both internal and external customs that meets or exceeds the standards set by the Department. Promotes and supports the use of technology that enables productivity and further enhances the level of customer satisfaction. Responds to customer inquiries in a timely and courteous manner, while ensuring all customer communication is documented. Adheres to all policies and regulations concerning confidentiality, use of state property, training requirements, and technical/physical security. Works at various locations as required. Ensures all written communication is clear, concise, and audience appropriate. Considers impact and the need for urgency when deciding a course of action. Does not misuse government property for personal gain, including non-work-related internet usage. Motivates and leads cross-functional teams and manages stakeholder groups at various levels of the organization to build trust and forge critical consensus. Meets legal, regulatory, and policy mandates. Education: Associate degree from an accredited college or university with a major in Information Technology or related field or equivalent experience. General Experience: Minimum eight (8) years of computer-related experience Specialized Experience: At least 3 years of experience configuring firewalls. At least 7 years of experience configuring routers and switches. At least 10 years of experience monitoring network equipment. At least 10 years of experience with excellent communication skills (oral and written) in clear, concise English with correct spelling and grammar. Must have experience with network analysis/management tools and techniques and be familiar with Personal Computers (PCs) in a client/server environment. Must be familiar with IT technology and long distance and local carrier management. Applicants must be authorized to work in the U.S. Salary negotiated commensurate with experience. Benefits available for W2 employees: 401K Medical Vision Dental AD&D (Basic Term Life) Voluntary AD&D Floating Holidays MORE ABOUT 4A 4A Consulting, LLC is one of the fastest growing solutions delivery companies in Maryland, delivering on end-to-end Enterprise-wide information technology (IT) initiatives. 4A has extensive experience delivering superb IT consulting and support services to federal, state, and local agencies, including the Centers for Medicare and Medicaid Services, the Social Security Administration, Food & Drug Administration, and the State of Maryland. We cultivate a well-trained, technically savvy workforce through the acquisition of talent with specialized skills in program and technical management, cloud-based systems development & deployment, SAFe/Agile processes, and advanced integration technologies. 4A Consulting, LLC is proud to be an Equal Opportunity Employer All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, protected veteran status, or any other characteristic protected by law. 4A is a certified Small Business Administration (SBA) Women-owned Small Business (WOSB)/Economically Disadvantaged Women-owned Small Business (EDWOSB), Maryland Department of Transportation Minority and Disadvantaged Small Business Enterprise (MBE/DBE), Minority Business Enterprise (National Minority Supplier Development Council), and Howard County (MD) Minority Business Enterprise IT firm. Your Right to Work – In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification document form upon hire.

Keywords: 4A CONSULTING LLC, Potomac , Senior Security Network Engineer, IT / Software / Systems , Ellicott City, Maryland