Senior Network Engineer- AI Focus

We are seeking an experienced Network Engineer - Level 3 to support the planning, design, development, implementation, operation, and technical support of complex multi-platform and multi-system network environments. This role will focus on maintaining secure, high-performance enterprise networks, diagnosing network performance issues, implementing improvements, and providing technical leadership for network operations and security. The ideal candidate will bring deep hands-on experience with Cisco routing, switching, firewalls, VPNs, intrusion detection/prevention systems, and enterprise-level backbone networks., * Plan, design, develop, implement, and support secure enterprise network environments.

• Install and configure Cisco 7600 Series routers and Cisco 6500 Series switches.

• Maintain, monitor, troubleshoot, diagnose, and resolve issues involving:

• Cisco ASA firewalls
• Cisco Intrusion Detection/Prevention Systems
• Cisco VPN technologies
• Cisco 3750 Series switches
• Cisco network management applications
• Identify network performance limitations and implement solutions to improve availability, reliability, and performance.
• Develop network security requirements and policies and translate those requirements into device-specific configurations.
• Design and implement enterprise-level ISP backbone networks.
• Operate and manage networks within secure and controlled environments.
• Provide technical direction for the operation, configuration, maintenance, and troubleshooting of network devices.
• Analyze complex technical issues and develop effective resolution strategies.
• Lead or direct small technical teams in identifying and resolving complex network problems.
• Maintain network documentation, configuration standards, and operational procedures.
• Support secure network architecture and ensure network configurations align with organizational security requirements., MANTECH is seeking a motivated, career-driven, and customer-focused Network Architect to join our team in Laurel, MD. You will play a critical role in supporting the enterprise i…
• 1 month ago

• 10+ years of experience in network design, including:

• Routing
• Switching
• Network security
• Demonstrated experience installing and configuring Cisco enterprise networking equipment.
• Strong experience supporting Cisco routing, switching, firewall, VPN, and intrusion detection/prevention technologies.
• Experience designing and implementing enterprise-scale network architectures.
• Experience developing and implementing network security requirements and policies.
• Demonstrated ability to diagnose and resolve complex network performance and connectivity issues.
• Experience providing technical leadership or direction to small engineering teams.
• Strong understanding of secure network operations and configuration management.

Required Certification

• Cisco Certified Network Associate (CCNA) certification is required.

Technical Environment

• Cisco 7600 Series Routers
• Cisco 6500 Series Switches
• Cisco 3750 Series Switches
• Cisco ASA Firewalls
• Cisco IDS/IPS
• Cisco VPN
• Cisco Network Management Applications
• Enterprise Routing & Switching
• Network Security
• ISP Backbone Networks
• Secure Network Environments

Preferred Attributes

• Strong analytical and troubleshooting skills.
• Ability to work independently on complex technical issues.
• Strong written and verbal communication skills.
• Experience mentoring or leading junior network engineers.
• Ability to translate technical and security requirements into practical network configurations.
• Experience supporting mission-critical or highly secure enterprise networks.

Our client offers a comprehensive, flexible benefits package supporting financial security, health, and work-life balance. Retirement 15% automatic company 401(k) contribution (3% safe harbor + 12% discretionary profit sharing) No vesting - 100% immediately vested Pre-tax and Roth options; contributions deposited every payroll Paid Time Off & Flexibility PTO accrued at 13% of hours worked ( 6 weeks / 30 days annually for full-time employees) Up to 240 hours carryover Flexible option to adjust PTO and/or 401(k) contributions in exchange for salary adjustments Health & Wellness Medical, dental, and vision insurance with significant company contribution CareFirst medical plans: Platinum POS - $0 deductible High Deductible POS - $1,600 / $3,200 deductible Company contributes 25% of deductible to HSA quarterly HSA and FSA options available Insurance (Company-Paid) $50,000 Life Insurance $50,000 AD&D Short-Term Disability: 60% pay (up to $1,000/week) Long-Term Disability: 60% pay (up to $6,000/month) Flexible Schedule Hourly pay with flexible/alternate schedules (customer approval required) Education & Training Up to $5,000 annually for certifications, courses, conferences, books, and related expenses Additional Perks $100 annually toward company-branded apparel Why Join Us? This opportunity offers the chance to support complex, secure network environments where reliability, performance, and security are critical. You will work with experienced technical teams, provide hands-on engineering support, and contribute directly to the design and operation of enterprise-scale network infrastructure.