Sr. Network Engineer

About the Role

Our organization is seeking a highly motivated, experienced, and communicative Senior Network Engineer to join our dynamic IT team.

• The ideal candidate will possess deep expertise in designing, implementing, managing, and troubleshooting complex network infrastructures.

• This role requires a strong background in enterprise-grade routing and switching (including extensive experience with Cisco IOS/IOS-XE/NX-OS operating systems), the comprehensive Juniper Mist AI-driven wireless platform, Palo Alto Networks firewalls, SD-WAN, advanced AWS cloud networking (including Gateway Load Balancer, Transit Gateway, VPC Peering, and sophisticated traffic management techniques), and in-depth Zscaler Secure Access Service Edge (SASE) solutions (including Zscaler Internet Access - ZIA and Zscaler Private Access - ZPA).

• You will play a critical role in ensuring the stability, security, and scalability of our enterprise network, including the physical infrastructure of our network distribution frames, and effectively communicating network strategies and issues across the organization.

• This role requires participation in an on-call rotation to provide 24x7 support.

About You

Basic Qualifications:

• 8+ years' total experience

• Design, configure, implement, and maintain enterprise-level network infrastructure, including routers, switches (campus and data center), firewalls, wireless access points, and related services.

• Design, implement, and manage complex BGP routing solutions, including iBGP/eBGP peering, route reflectors, policy-based routing, traffic engineering using communities and other attributes, and troubleshooting complex BGP convergence and stability issues.

• Lead the design, build-out, and ongoing management of Main Distribution Frames (MDFs) and Intermediate Distribution Frames (IDFs), ensuring adherence to structured cabling standards, optimal cable management, power distribution, cooling, and physical security.

• Design, deploy, and manage the Juniper Mist AI-driven platform (including Mist Access Points, Mist Edge, and the Mist Cloud dashboard for AI-driven operations, Marvis Virtual Network Assistant, Wi-Fi Assurance, Wired Assurance, and WAN Assurance).

• Deploy, manage, and optimize Palo Alto Networks' SD-WAN, firewalls, including policy creation, threat prevention, VPN configuration, and performance tuning.

• Architect, build, and manage secure and scalable network solutions within AWS cloud environments, including:

• Designing and implementing AWS Transit Gateway architectures for large-scale network connectivity (VPC attachments, Direct Connect Gateway, route propagation, network segmentation, and policy enforcement).

• Setting up and managing AWS Gateway Load Balancer (GWLB) for deploying and scaling third-party virtual appliances.

• Establishing and managing VPC Peering connections (intra-region and inter-region) ensuring secure and optimized communication paths.

• Implementing comprehensive AWS traffic management solutions using services like Route 53 (DNS, health checks, routing policies), Elastic Load Balancing (ALB/NLB), and AWS Direct Connect for hybrid connectivity.

• Configuring and managing Security Groups, Network ACLs, and other AWS native security features.

• Implement, configure, and manage Zscaler Internet Access (ZIA) and Zscaler Private Access (ZPA) solutions, including:

• Setting up and managing identity provider (IdP) integrations (e.g., SAML, SCIM) for robust user authentication and the creation/management of identity-based security policies and access groups.

• Deploying, managing, and troubleshooting Zscaler Private Service Edges (PSEs) for optimized and secure access to internal applications via ZPA.

• Developing and contributing to Business Continuity Plans (BCP) for Zscaler services, ensuring resilient and continuous secure access for users.

• Configuring traffic forwarding, security policies, and application segments.

• Lead network infrastructure projects from conception to completion, including requirements gathering, design, planning, execution, and post-implementation support, ensuring clear communication with all stakeholders throughout the project lifecycle.

• Monitor network performance and integrity using tools like Marvis for proactive insights, identify and resolve complex network issues (leveraging deep troubleshooting skills for routing, switching, firewalling, cloud networking, and SASE solutions), and implement proactive measures to prevent outages and performance degradation.

• Develop and maintain comprehensive network documentation, including diagrams, configurations, IDF/MDF layouts, Zscaler policy and architecture details, operational procedures, and present technical information clearly to diverse audiences.

• Effectively collaborate and communicate with cross-functional teams (Security, Systems, Applications, DevOps, Facilities) to ensure network infrastructure supports business requirements and strategic initiatives.

• Perform network capacity planning and recommend upgrades and enhancements to meet evolving business needs, articulating justifications and benefits clearly.

• Participate in an on-call rotation for after-hours support and respond to critical network incidents, providing 24x7 operational support as needed, communicating status and resolution effectively.

Other Qualifications:

• Stay current with emerging network technologies, security threats, and industry best practices.

• Mentor junior network engineers and provide technical guidance and support, fostering their communication and technical skills.

• Relevant industry certifications such as CCNP (Enterprise/Data Center/Security), CCIE (Enterprise Infrastructure/Security), JNCIP-ENT, Juniper Networks Certified Mist AI Specialist (JNCIS-MistAI) or Professional (JNCIP-MistAI), PCNSE, AWS Certified Advanced Networking – Specialty, Zscaler Certified Cloud Professional (ZCCP-PA, ZCCP-IA) or Zscaler Certified Cloud Administrator (ZCCA-PA, ZCCA-IA).

• Experience with scripting and automation (e.g., Python, Ansible) for network tasks, including AWS CloudFormation or Terraform for infrastructure as code.

• Knowledge of SD-WAN technologies.

• Familiarity with other cloud platforms (Azure, GCP).

• Experience with network segmentation and micro-segmentation strategies.