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Network Engineer, Level III

Swish Data

Kearneysville, WV 25430 • $125,000 to $150,000 / yr • 9/23/2026

Engineering , Information Technology , Professional

Job Description

Job Description

About the Role

Swish is seeking an experienced Network Engineer III to support a mission-focused customer in Kearneysville, West Virginia. The Network Engineer III will be responsible for installing, maintaining, troubleshooting, evaluating, and optimizing enterprise network infrastructure in a customer environment.

This role requires a strong technical background in network engineering, including routers, switches, firewalls, network communications, and related infrastructure. The successful candidate will work independently on complex technical issues, contribute to network architecture and optimization efforts, and research emerging technologies and potential network security risks.

The position is highly customer-facing and requires a professional who can operate effectively in a mission-critical environment, communicate technical information clearly, and independently resolve complex network challenges.

An active U.S. Secret security clearance is required. This position is onsite at the customer location in Kearneysville, WV.

Essential Duties and Responsibilities

  • Install, configure, maintain, and evaluate network systems and communications infrastructure.
  • Troubleshoot and resolve complex network connectivity, performance, and configuration issues.
  • Monitor network performance and identify opportunities for optimization and improved reliability.
  • Support the design, implementation, and optimization of network architecture.
  • Configure and troubleshoot enterprise routers, switches, firewalls, and related network technologies.
  • Analyze network traffic, system performance, and potential security risks.
  • Research and evaluate emerging networking technologies and recommend solutions appropriate to the customer environment.
  • Participate in the planning and implementation of network upgrades, enhancements, and technology refresh initiatives.
  • Diagnose and resolve advanced technical problems with minimal supervision.
  • Support network security initiatives and ensure infrastructure is maintained in accordance with applicable security requirements and customer policies.
  • Develop and maintain technical documentation, network diagrams, configurations, and operational procedures.
  • Collaborate with customer stakeholders, engineering teams, cybersecurity personnel, and other technical staff to resolve issues and implement solutions.
  • Provide technical guidance and knowledge sharing to other team members as appropriate.
  • Maintain awareness of current networking technologies, industry practices, and security considerations.
  • Perform other duties as assigned in support of customer mission requirements.

Required Qualifications

  • Active U.S. Secret security clearance.
  • Bachelor's degree in Computer Science, Information Technology, Engineering, or a related technical discipline; equivalent experience may be considered.
  • 8+ years of progressively responsible experience in network engineering or a related field.
  • Extensive hands-on experience with enterprise network infrastructure, including:
    • Routers
    • Switches
    • Firewalls
    • TCP/IP
    • LAN/WAN technologies
    • Network communications
    • Network monitoring and troubleshooting
  • Demonstrated experience troubleshooting complex network issues in an enterprise or mission-critical environment.
  • Experience supporting network architecture, design, implementation, and optimization.
  • Strong understanding of network security concepts, vulnerabilities, and risk considerations.
  • Ability to work independently and manage complex technical assignments with limited direction.
  • Strong analytical, problem-solving, troubleshooting, and communication skills.
  • Ability to work effectively in a customer-site environment.

Preferred Qualifications

  • Experience supporting federal government or Department of Defense customers.
  • Experience working in classified or security-sensitive environments.
  • Relevant industry certifications such as CCNA, CCNP, Security+, or equivalent.
  • Experience with enterprise firewall technologies and network security solutions.
  • Experience with network monitoring and management tools.
  • Experience developing network architecture, diagrams, technical documentation, and implementation plans.
  • Knowledge of current networking technologies and emerging infrastructure solutions.
\nCompany Description

Swish is a customer-centric, specialized integrator with an engineering first culture. Our core solutions are focused on IT modernization, performance engineering, and cybersecurity. Swish believes good people empowered to innovate, coupled with a continuous improvement culture and supportive leadership equals superior outcomes. To this end, Swish believes in hiring, rewarding, and retaining the most talented engineers and technologies in the industry.

Our people make Swish great. We work together on interesting projects and achieve exceptional results. We act as trusted advisors to our customers and are committed to client and industry innovation. We offer our people the chance to grow professionally with teammates they like and respect while tackling challenges that stretch their minds and expand their skill sets. We’re connected by our desire to innovate and continuously improve.

Swish’s high energy, challenging, and fast-paced work environment will keep you engaged and motivated. Work-life balance is a core priority at Swish.

EEO & OFCCP Statement
Swish is an Equal Opportunity Employer and a proud U.S. Federal Government contractor. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity or expression, national origin, age, disability, genetic information, marital status, veteran status, or any other protected characteristic under applicable federal, state, or local laws.

We are committed to providing reasonable accommodations to individuals with disabilities throughout the application and employment process. If you need assistance or an accommodation due to a disability, please contact us.

U.S. Citizenship is required for all positions with a government clearance and certain other restricted positions.

Company Description

Swish is a customer-centric, specialized integrator with an engineering first culture. Our core solutions are focused on IT modernization, performance engineering, and cybersecurity. Swish believes good people empowered to innovate, coupled with a continuous improvement culture and supportive leadership equals superior outcomes. To this end, Swish believes in hiring, rewarding, and retaining the most talented engineers and technologies in the industry.\r\n\r\nOur people make Swish great. We work together on interesting projects and achieve exceptional results. We act as trusted advisors to our customers and are committed to client and industry innovation. We offer our people the chance to grow professionally with teammates they like and respect while tackling challenges that stretch their minds and expand their skill sets. We’re connected by our desire to innovate and continuously improve.\r\n\r\nSwish’s high energy, challenging, and fast-paced work environment will keep you engaged and motivated. Work-life balance is a core priority at Swish. \r\n\r\nEEO & OFCCP Statement\r\nSwish is an Equal Opportunity Employer and a proud U.S. Federal Government contractor. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity or expression, national origin, age, disability, genetic information, marital status, veteran status, or any other protected characteristic under applicable federal, state, or local laws.\r\n\r\nWe are committed to providing reasonable accommodations to individuals with disabilities throughout the application and employment process. If you need assistance or an accommodation due to a disability, please contact us.\r\n\r\nU.S. Citizenship is required for all positions with a government clearance and certain other restricted positions.