Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Senior Network Security Engineer

$140k - $155k

CO1046 Sirius Federal, LLC

This position is located in the Network Engineering and Operations (Networking) Directorate, House Information Resources (HIR), Office of the Chief Administrative Officer (CAO), U.S. House of Representatives (House). The Networking Directorate provides operational support services to the House that ensure reliable and dependable connectivity to the House Data Network both on the House Campus and to over 820 District Offices as well as numerous Business Continuity and Disaster Recovery (BC/DR) sites, facilities, and mobile capabilities. This position serves as the Senior Network Systems Engineer. Key responsibilities include providing senior engineering analyses, design, testing, integration, and Level 3 operations for the House wide-area networks; performing cost/benefit analysis on new and competing technologies; assisting in preparing and reviewing proposals and quotes; and providing senior level operational support on day to day operations and complex problem resolution. This position has access to Personally Identifiable Information (PII).

What You Will Do

Evaluates and recommends commercially available, standards compliant wide-area networking solutions.

Develops traffic engineering studies and analyses to determine data network requirements.

Performs cost/benefit analysis on competing methods of providing data communications.

Designs complex integrated communication networks and develops network service specifications and procedures.

Assists in the preparation of Request for Proposals and Request for Quotations.

Reviews and evaluates reliable, cost-effective, and efficient wide-area communications for the House.

Provides senior level operational support on day-to-day operations and resolution to complex WAN/LAN problems.

Conducts performance and bandwidth utilization monitoring of wide-area communication systems.

Keeps abreast of relevant telecommunications technology changes and applies industry standards to House requirements.

Trains other House staff in telecommunications technologies and provides technical guidance to junior level engineers.

Performs other official duties and special projects as assigned.

What We Expect of You

Bachelor’s degree in a related field or equivalent work experience.

Minimum 5 years of experience designing and supporting large scale campus networks and/or wide-area networks.

Experience in contract management, project management, SDLC, and change management processes required.

Experience with Visio.

Strong knowledge of BGP and Internet Routing.

Knowledge of DMVPN and IPSEC VTIs.

Knowledge of DWDM and Optical Transport Systems.

Knowledge of TCP, UDP, QoS, DNS/DHCP, TLS/ SNMP, EIGRP, and OSPF.

Skill in analyzing Sniffer traces.

Skill in the coordination of network engineering and integration projects.

Ability to manage large projects and bring them to a successful conclusion.

Ability to provide engineering leadership on all phases of analysis, design, testing, and implementation of networks, integration of voice and data, and telecommunications.

Ability to perform complex planning and evaluation of network systems.

Ability to communicate effectively, both orally and in writing, with elected officials, senior staff, information systems professional, and non-technical users.

Employees within this position are expected to demonstrate the following HIR Technical Competencies:
  • Analytics
  • Application Administration and Integration
  • Emergency Response Planning and Risk Management
  • Hardware Installation and Management
  • Information Management
  • Information Resources Strategy and Planning
  • Information Systems/Network Security
  • Information Technology Support
  • Knowledge of Emerging Trends and Industry Best Practices
  • Network Management
  • Project Management
  • Quality Assurance and Testing
  • Telecommunications
All employees within CAO are expected to demonstrate the following general competencies:
  • Accountability
  • AdaptabilityCollaboration
  • Communication
  • Customer Orientation
  • Knowledge of Relevant Policies, Procedures, and Processes
  • Priority Management
  • Problem Resolution

This position is located in an office setting that is adequately heated, lighted, and ventilated. Normal safety precautions apply. The work involves carrying of light items such as books, papers and small office equipment. The incumbent must be able to meet minimum physical requirements (lifting, bending, crouching, standing, etc.). Must successfully complete a criminal history records check. Employee may be subject to drug testing in accordance with the CAO Drug Free Workplace Plan. Must be able to secure and maintain Federal Government security clearances as deemed appropriate by senior management.

Pay range: $140,000 - $155,000 depending on experience and skill set. Annual bonus target of % subject to terms and conditions of plan.

Benefits overview:

CDW is committed to being an AI-fluent organization We’re looking for people who bring curiosity, a learner’s mindset, and a willingness to engage with ever-evolving technology and tools. We value adopting AI as a partner, openness to experimentation, and a shared interest in learning together on AI. Our goal is to create a culture where AI enhances—not replace—and decision‑making. You don’t need to be an expert today; what matters is your readiness to explore, adapt, and grow with us as we integrate. Additionally, CDW is committed to fostering an equitable, transparent, and respectful hiring process for all applicants. During our application process, our goal is to understand your experience, strengths, skills, and qualifications. As an AI forward company, we see AI not just as a tool, but as a catalyst for new ways of thinking, creating, and communicating. We encourage candidates to embrace an AI mindset. We welcome thoughtful use of AI to expand your perspective.

About Us

CDW is a Fortune 500 technology solutions provider that helps businesses, government, education, and healthcare organizations achieve what’s possible through technology.

What makes CDW different isn’t just what we do—it’s how we do it. At CDW we act as one—building trust, speaking candidly, and working together to achieve more. We play to win—focusing on what matters most and delivering for our customers. And we think forward—staying curious, moving fast, and continuously learning. We believe meaningful work happens when people feel supported, heard, and empowered to contribute. That’s why we think of ourselves as coworkers, not just employees—working together to solve complex challenges and deliver real impact for our customers and communities.

As a full‑stack, full‑lifecycle technology partner, CDW brings deep expertise, strong relationships, and broad industry knowledge to help turn ideas into outcomes. When you join CDW, you become part of a collaborative environment where your work matters, your growth is supported, and your contributions help shape what’s next. Together, we deliver the full promise of what technology can do. Together, we Make Amazing Happen.

CDW is an equal opportunity employer. All qualified applicants will receive consideration for employment without regards to race, color, religion, sex, sexual orientation, gender identity, national origin, disability status, protected veteran status or any other basis prohibited by state and local law.

At CDW, we make technology work so people can do great things. We are a leading multi-brand technology solutions provider to business, government, education and healthcare customers in the United States, the United Kingdom and Canada. Our coworkers across the globe are working together to bring technology to life for our customers by solving complicated IT business challenges, providing outstanding service, and orchestrating the technology landscape to optimize our customers’ performance.

#J-18808-Ljbffr
Vacancy posted 1 day ago
Similar jobs that could be interesting for youBased on the Senior Network Security Engineer in Washington DC vacancy
  •  ...The DC Office of the Chief Financial Officer (OCFO) is seeking a Senior Network Security Engineer to support the ongoing design, implementation, operation, and security of the OCFO network and its supporting security infrastructure. You will configure and secure network... 
    Senior
    Work at office
    Local area

    Tecknomic

    Washington DC
    3 hours ago
  • $150.96k - $170.61k

     ...Requirements: We require at least 6 years of network security experience. We are looking for deep...  ...technical leadership, mentor other engineers, and drive security engineering initiatives...  .... Responsibilities: We provide senior-level engineering, administration, troubleshooting... 
    Senior
    Full time
    Work at office
    Remote work
    Flexible hours

    SwissDevJobs.ch

    Washington DC
    2 days ago
  •  ...decoration: none; color: #464feb; } tr th, tr td { border: 1px solid #e6e6e6; } tr th { background-color: #f5f5f5; } Senior Network Security Engineer II BizTech Fusion is hiring a Senior Network Security Engineer II for one of our clients. Location: Washington,... 
    Senior
    Long term contract
    Local area
    Remote work

    BizTech Fusion

    Washington DC
    2 days ago
  • $107.9k - $195.05k

     ...information and/or position overview. Leidos is seeking a Senior Security Engineer to serve as the technical lead for day-to-day security activities...  ...vulnerability remediation across Windows, Linux, network, desktop support and other engineering teams and provide hands... 
    Senior
    Full time
    Work experience placement

    Leidos

    Bethesda, MD
    1 day ago
  •  ...committed to bringing cutting-edge autonomy, AI, computer vision, sensor fusion, and networking technology to the military in months, not years.ABOUT THE TEAMAnduril's Security Engineering team is looking for a security engineer to focus on building world class defensive... 
    Senior
    Full time
    Work experience placement
    Immediate start

    Anduril Industries

    Washington DC
    16 hours ago
  •  ...committed to bringing cutting-edge autonomy, AI, computer vision, sensor fusion, and networking technology to the military in months, not years.ABOUT THE TEAMAnduril's Security Engineering team is looking for a security engineer to focus on building world class defensive... 
    Senior
    Full time
    Work experience placement
    Immediate start

    Anduril Industries

    Washington DC
    16 hours ago
  • $207k - $320k

    As a Sr. Network Security Engineer III, you’ll provide hands-on expertise securing mission-critical networks for a high-visibility customer with the goal of making an impact across the federal government. Our team is responsible for designing, operating, and hardening complex... 
    Senior
    Full time
    Local area
    Immediate start

    MetroStar Systems

    Washington DC
    16 hours ago
  • $148.5k - $223.9k

     ...future of AI, and you are the future of Salesforce.Job Title: Senior Product Security Engineer, InfrastructureJob Category: Technology /...  ...and non-technical audiences alike.Identity, Access, and Network Fundamentals: You understand authentication and authorization... 
    Senior
    Full time

    Salesforce

    Washington DC
    16 hours ago
  •  ...Later bridges creativity and performance so campaigns don’t just look good—they deliver results. Learn more at later. com . Senior Security Engineer About this position: We're looking for a Senior Security Engineer to strengthen Later's company-wide security posture... 
    Senior
    Full time

    Later

    Washington DC
    12 days ago
  •  ...and other Microsoft 365 workloads. Design and implement data security and governance controls for Microsoft 365 Copilot and AI-...  ...with Security Operations, Legal, Privacy, Compliance, and Cloud Engineering teams to translate regulatory requirements into technical controls... 
    Senior
    Contract work

    2T Consulting

    Washington DC
    29 days ago
  •  ...Senior Security Engineer Location: Bethesda, MD (Requires Onsite 3–5 days per week as needs change) Employment Type: Full-time The...  ...Collaborating closely with endpoint owners, infrastructure and network security teams, as well as enterprise security teams to... 
    Senior
    Full time
    Work experience placement
    Work at office
    Shift work
    3 days per week

    August Schell

    Bethesda, MD
    13 days ago
  • $105k - $145k

     ...: We require a bachelors degree in cybersecurity, networking, electrical or computer engineering, or computer science. We look for 2+ years of experience...  ...with site members to support regional OT security initiatives. We provide technical support, deliver... 
    Senior
    Full time
    Temporary work
    Casual work
    Relocation package
    Flexible hours

    Honda Dev. and Mfg. of Am.,LLC

    Washington DC
    20 days ago
  •  ...Description Job Description Evolver Federal is seeking a Senior Security Engineer to fulfill a requirement for a potential government client...  .... Experience with PKI, encryption standards, and secure network design. Knowledge of automation tools for security... 
    Senior
    Contract work
    Flexible hours

    Evolver Federal

    Washington DC
    15 days ago
  •  ...is a leading platform-enabled unified security operations company providing a...  ...India.  UltraViolet Cyber is seeking a Senior Security Tools Engineer to support the security tools environment...  ...EDR, SIEM, vulnerability management, network detection, or similar) Hands-on... 
    Senior
    Temporary work
    3 days per week

    UltraViolet Cyber

    National Harbor, MD
    a month ago
  • $180k - $220k

     ...matter, you'll feel at home here.   About the Role As a Senior Security Engineer, Detection and Response you will develop, scale, and evolve...  ...detection rules and alerts across logs, telemetry, host, network, and cloud. Own the security data platform end to end.... 
    Senior
    Full time
    Worldwide

    Aircall.io, Inc.

    Washington DC
    21 days ago
  • $148.5k - $223.9k

     ...Salesforce.The ExperienceThe Enterprise Security Technology team builds and operates...  ...'s enterprise workloads. As a Senior Endpoint Software Engineer, you develop, deploy, and operate automation...  ...(XDR), Vulnerability Management, Network Security, and Application Control in... 
    Senior
    Full time

    Salesforce

    Washington DC
    16 hours ago
  • $86.8k - $198k

    Security Engineer, Senior The Opportunity: Everyone is trying to “harness the cloud”, but not everyone knows how to secure it. As a cloud security architect, you know how to assess and implement requirements that ensure the safety of information systems and protect them... 
    Senior
    Full time
    Contract work
    Part time
    Local area
    Remote work

    Booz Allen Hamilton

    Washington DC
    2 days ago
  •  ...Job Summary (Senior Data Security Engineer Microsoft Purview): - Serve as the hands-on technical lead for enterprise data security, focusing on Microsoft Purview across cloud and on-premises environments. - Design, implement, and optimize Microsoft Purview... 
    Senior

    Expert Technology Services

    Washington DC
    2 days ago
  • $207k - $320k

     ...As a Sr. Network Security Engineer III , you’ll provide hands-on expertise securing mission-critical networks for a high-visibility customer with the goal of making an impact across the federal government. Our team is responsible for designing, operating, and hardening... 
    Senior
    Full time
    Work experience placement
    Local area
    Immediate start
    Flexible hours

    MetroStar

    Washington DC
    2 days ago
  • $165k - $175k

     ...solutions for the federal government by securing and managing data, providing scalable identity...  ...State ZTA across identity, device, network, application/workload, and data, with automation...  ...broken down into NIST SP 800-207 Policy Engine, Policy Administrator, and Policy... 
    Senior
    Work at office
    Local area
    Remote work
    2 days per week
    1 day per week

    eTelligent Group LLC

    Bethesda, MD
    6 days ago
  •  ...Job Description Job Description Senior Network Security Engineer -Long-Term Contract (Government) Position Title:  Network Security Engineer(NSE) Worksite Address: Washington, DC Interviews:  In Person Or Webcam Only Short Description: NSE **Candidates... 
    Senior
    Long term contract
    Local area
    Remote work

    GoIntellects Inc.

    Washington DC
    7 days ago
  •  ...Description Overview   cyDaptiv Solutions is seeking a Senior Cyber Security Engineer (CSE) with experience supporting Federal and DoD cyber...  ...preferred. ~ Strong technical understanding of the network and systems operations in secured DoD environments. ~... 
    Senior
    Full time

    cyDaptiv Solutions

    Bethesda, MD
    a month ago
  •  ...interests. Requisition #:  Job Title: Senior Security Architect Location: Washington, DC...  ...SOC analysts, incident responders, engineering teams, and leadership to ensure the security...  ...~5-7 years designing secure system and network architectures for federal agencies;... 
    Senior
    Monday to Friday

    Agile Defense

    Washington DC
    9 days ago
  •  ...Job Description Job Description Job Title: Senior Data Security Engineer – Microsoft Purview Location: Washington, DC (On-site) Employment Type: Contract (W2 through ZipStaff — No C2C or 1099) About the Opportunity: ZipStaff is seeking a Senior Data Security... 
    Senior
    Contract work

    ZipStaff Inc.

    Washington DC
    9 days ago
  •  ...MANTECH seeks a motivated, career and customer-oriented Senior Cloud Information System Security Engineer (ISSE) to join our team in Washington, D.C.....  ...Identify information protection needs for an IS and Network Environment. Define IS and Network Environment security... 
    Senior
    Work at office

    MANTECH

    Washington DC
    6 hours ago
  • iVision Consulting seeks a Foundational IT SME to provide targeted technical expertise on demand across endpoint, network, and cybersecurity domains. The role requires onsite presence 2-3 days per week in Bethesda, Maryland, and the ability to obtain a Public Trust clearance... 
    Senior
    2 days per week
    3 days per week

    iVision Consulting

    Bethesda, MD
    5 days ago
  • $118.3k - $188.6k

     ...Position Summary: The Senior Information Security Engineer will be responsible for the ongoing development, implementation, and support of security...  ...scanning tools. Design and implement secure network and system architectures for both on-premises and cloud... 
    Senior
    Full time

    Physicians Insurance A Mutual Company

    Washington DC
    27 days ago
  •  ...Description Minimum eight (8) years experience • Responsible for the secure design, analysis, and test of information security systems and...  ...for detecting and mitigating risk to information systems. engineer and perform tests and test plans to satisfy audits. •... 
    Senior

    Bow Wave LLC

    Washington DC
    15 days ago
  • $121k - $203k

     ...compensation packages that recognize hard work and excellence. Job Description The Senior Information Security Engineer oversees the security of the Firm’s applications, networks, and systems. This position manages the security and integrity of the Firm’s... 
    Senior
    Full time
    Work experience placement
    Work at office

    McDermott Will & Schulte

    Washington DC
    1 day ago
  •  ...Job Description Job Description We are seeking a Senior Network Security Engineer for an operations-first role supporting enterprise network security infrastructure across on-premises, remote-access, hybrid-cloud, and cloud-connected environments. This is not primarily... 
    Senior
    Remote work
    Flexible hours
    Night shift

    Ignite IT

    Suitland, MD
    28 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Senior Network Security Engineer. Be the first to apply!