Senior Network Engineer

Wissen Infotech; Pittsburgh (Allegheny County); Hybrid; USD 120,000 - 160,000; Full time

Job summary

Wissen Infotech seeks a Senior Network Engineer to design, implement, and optimize enterprise-level network infrastructures. The role emphasizes leadership in architecture, security, cloud networking, and large-scale transformations within client environments.

The ideal candidate will lead transformation initiatives, architect solutions for LAN/WAN, SD-WAN, data centers and multi-clouds, and mentor junior engineers while supporting pre-sales activities.

Qualifications

• 12+ years of enterprise networking experience.
• Deep expertise in routing, switching and security.
• Hands-on with SD-WAN, MPLS, VPNs and virtualization.
• Cloud networking across AWS/Azure with multi-cloud awareness.
• Data center networking including Spine-Leaf, VXLAN/EVPN.

Responsibilities

• Design scalable, secure network architectures for enterprise environments.
• Lead network transformation, modernization, and hybrid solutions.
• Develop and enforce network standards and best practices.
• Architect LAN/WAN, SD-WAN, data centers and multi-cloud setups.
• Collaborate with security, cloud, and infra teams.
• Evaluate technologies, tools, and vendors; mentor engineers.
• Perform capacity planning, performance tuning, and optimization.
• Ensure security policy and regulatory compliance; root cause analysis.
• Assist pre-sales with design, proposals, and client presentations.

Skills

Routing & switching

SD-WAN

MPLS

VPNs

Network virtualization

Network security

Cloud networking

Data center networking

Load balancers

Network automation

Python

Ansible

Terraform

Monitoring/observability

ITIL processes

Education

Bachelor's or Master's in CS/IT

CCNP

CCIE

AWS/Azure Networking Certifications

Tools

F5

Citrix ADC

NGINX

Job description

Job Title: Senior Network Engineer
Location: Pittsburgh, PA
Work Mode: HYBRID - 2 Days ONSITE
Experience: 12 Years
Employment Type: Contract

ONSITE INTERVIEW MANDATORY - Pittsburgh, PA 15219

Role Overview

We are seeking an experienced Network Architect to design, implement, and optimize enterprise-level network infrastructures. The ideal candidate will have deep expertise in network architecture, security, cloud networking, and large-scale transformations. This role requires strong leadership, strategic thinking, and hands-on technical capabilities to support complex client environments.

Key Responsibilities

• Design and implement scalable, secure, and high-performance network architectures across enterprise environments.
• Lead network transformation initiatives, including modernization, cloud adoption, and hybrid network solutions.
• Develop network standards, frameworks, and best practices aligned with business and security requirements.
• Architect solutions involving LAN/WAN, SD-WAN, data centers, and multi-cloud environments (AWS, Azure, Google Cloud Platform).
• Collaborate with cross-functional teams (security, cloud, infrastructure) to ensure seamless integration.
• Evaluate and recommend networking technologies, tools, and vendors.
• Provide technical leadership and mentorship to network engineers and operations teams.
• Conduct network capacity planning, performance tuning, and optimization.
• Ensure compliance with security policies, regulatory standards, and industry best practices.
• Troubleshoot complex network issues and provide root cause analysis.
• Support pre-sales activities including solution design, proposals, and client presentations.

Required Skills & Expertise

• Strong expertise in routing and switching protocols (BGP, OSPF, EIGRP).
• Hands-on experience with SD-WAN, MPLS, VPNs, and network virtualization.
• Deep knowledge of network security (Firewalls, IDS/IPS, Zero Trust architecture).
• Experience with cloud networking (AWS VPC, Azure VNet, hybrid connectivity).
• Proficiency in data center networking (Spine-Leaf architecture, VXLAN, EVPN).
• Familiarity with load balancers (F5, Citrix ADC, NGINX).
• Experience with network automation (Python, Ansible, Terraform).
• Knowledge of monitoring and observability tools (SolarWinds, Splunk, etc.).
• Strong understanding of ITIL processes and service management frameworks.

Preferred Qualifications

• Bachelor s or Masters in Computer Science, IT, or related field.

• Industry certifications such as:

• Cisco Certified Network Professional (CCNP)

• Cisco Certified Internetwork Expert (CCIE)

• AWS / Azure Networking Certifications

• Experience working in large enterprise or consulting environments.

Key Competencies

• Strategic thinking and architectural design skills
• Strong problem-solving and analytical abilities
• Excellent communication and stakeholder management
• Leadership and team mentoring capabilities.
• Ability to work in a fast-paced, client-facing environment.