Senior Network System Engineer

Company: SimVentions, Inc - Glassdoor ? 4.6
Location: Dahlgren
Posted on: February 12, 2026

Job Description:

Overview: The Network Engineer will be responsible for the design, implementation, maintenance, and support of the network infrastructure supporting the CIAT system. This role requires in-depth knowledge and hands-on experience with Cisco networking technologies, VMware virtualization, and scripting languages. The engineer will work independently and collaboratively to ensure the CIAT network is secure, reliable, and performs optimally to meet the demanding requirements of the training environment. The ideal candidate is a self-motivated problem-solver with a strong understanding of network architecture and a commitment to continuous learning. Travel: Required to support system deployments and maintenance activities ( An ACTIVE Secret Clearance is required for this position. Applicants selected will be subject to a security investigation and may need to meet eligibility requirements for access to classified information. US Citizenship is required to obtain a clearance. Requirements: Extensive knowledge and experience working with, configuring, and managing Cisco ACI multi-tenant network environments. Strong proficiency with Cisco IOS/IOS-XE-based networking switches and routers. Hands-on experience implementing and managing Cisco Firepower-based firewalls. Proficiency in administering and supporting Cisco ISE. Familiarity with VMware, including VM configuration and experience with standard and distributed virtual network switches. Understanding and experience with ACI virtual machine manager (VMM) network integrations. Proficiency in scripting languages such as Ansible, PowerShell, Bash, and Python. Comprehensive understanding of system of systems concepts, IaaS, and complex system architectures. Experience with Linux (RHEL and Ubuntu) and Windows operating systems. Excellent documentation and communication skills. Proven ability to troubleshoot complex problems independently. Responsibilities: Design, configure, and manage Cisco ACI multi-tenant network environments. Configure and maintain Cisco IOS/IOS-XE-based networking switches and routers. Implement and manage Cisco Firepower-based firewalls. Administer and support Cisco Identity Services Engine (ISE). Utilize VMware virtualization technologies, including configuring and managing standard and distributed virtual network switches. Implement and maintain ACI virtual machine manager (VMM) network integrations. Automate network tasks using scripting languages such as Ansible, PowerShell, Bash, and Python. Maintain a comprehensive understanding of CIAT system-of-systems architecture, IaaS components, and their interaction with the supporting networking systems. Install, configure, and maintain Linux (primarily RHEL and Ubuntu) and Windows operating systems as they relate to network infrastructure components. Develop and maintain documentation for network processes and configurations. Communicate effectively with team members to resolve technical issues and share knowledge. Troubleshoot complex network problems independently, with minimal supervision. Participate actively in an Agile team environment. Preferred Skills and Experience: AWS tactical networking knowledge in BL9 or BL10. Cisco, VMware, and/or other networking-focused certifications. Programming or development experience with network configuration using SDN. Experience with network source code repositories for configuration management. Education: BS in a related field such as Information Systems, Information Technology, Computer Science, or Computer Engineering Compensation: Compensation at SimVentions is determined by a number of factors, including, but not limited to, the candidate’s experience, education, training, security clearance, work location, skills, knowledge, and competencies, as well as alignment with our corporate compensation plan and contract specific requirements. The projected annual compensation range for this position is $115,000 - $180,000 (USD). This estimate reflects the standard salary range for this position and is just one component of the total compensation package that SimVentions offers. Benefits: At SimVentions, we’re committed to supporting the total well-being of our employees and their families. Our benefit offerings include comprehensive health and welfare plans to serve a variety of needs. We offer: Medical, dental, vision, and prescription drug coverage Employee Stock Ownership Plan (ESOP) Competitive 401(k) programs Retirement and Financial Counselors Health Savings and Health Reimbursement Accounts Flexible Spending Accounts Life insurance, short- & long-term disability Continuing Education Assistance Paid Time Off, Paid Holidays, Paid Leave (e.g., Maternity, Paternity, Jury Duty, Bereavement, Military) Third Party Employee Assistance Program that offers emotional and lifestyle well-being services, to include free counseling Supplemental Benefit Program Why Work for SimVentions?: SimVentions is about more than just being a place to work with other growth-orientated technically exceptional experts. It’s also a fun place to work. Our family-friendly atmosphere encourages our employee-owners to imagine, create, explore, discover, and do great things together. Support Our Warfighters SimVentions is a proud supporter of the U.S. military, and we take pride in our ability to provide relevant, game-changing solutions to our armed men and women around the world. Drive Customer Success We deliver innovative products and solutions that go beyond the expected. This means you can expect to work with a team that will allow you to grow, have a voice, and make an impact. Get Involved in Giving Back We believe a well-rounded company starts with well-rounded employees, which is why we offer diverse service opportunities for our team throughout the year. Build Innovative Technology SimVentions takes pride in its innovative and cutting-edge technology, so you can be sure that whatever project you work on, you will be having a direct impact on our customer’s success. Work with Brilliant People We don’t just hire the smartest people; we seek experienced, creative individuals who are passionate about their work and thrive in our unique culture. Create Meaningful Solutions We are trusted partners with our customers and are provided challenging and meaningful requirements to help them solve. Employees who join SimVentions will enjoy additional perks like: Employee Ownership: Work with the best and help build YOUR company! Family focus: Work for a team that recognizes the importance of family time. Culture: Add to our culture of technical excellence and collaboration. Dress code: Business casual, we like to be comfortable while we work. Resources: Excellent facilities, tools, and training opportunities to grow in your field. Open communication: Work in an environment where your voice matters. Corporate Fellowship: Opportunities to participate in company sports teams and employee-led interest groups for personal and professional development. Employee Appreciation: Multiple corporate events throughout the year, including Holiday Events, Company Picnic, Imagineering Day, and more. Founding Partner of the FredNats Baseball team: Equitable distribution of tickets for every home game to be enjoyed by our employee-owners and their families from our private suite. Food: We have a lot of food around here! FTAC

Keywords: SimVentions, Inc - Glassdoor ? 4.6, Bowie , Senior Network System Engineer, IT / Software / Systems , Dahlgren, Maryland