Network Field Engineer

Network Engineer / Network Architect (CCNA / CCNP) | Dispatch Freelance Contract Sharp Brains Limited is actively seeking an experienced Network Engineer / Network Architect to join our global network of field engineers. This is a Dispatch-Based Freelance Contract, ideal for professionals looking to support enterprise networking, security, and data center projects on an as-needed basis. Key Responsibilities ✔ Design and develop scalable network solutions based on business and technical requirements. ✔ Implement and support enterprise network infrastructure, security, and connectivity solutions. ✔ Perform network assessments, architecture reviews, and provide strategic design recommendations. ✔ Troubleshoot and resolve complex network, hardware, software, and connectivity issues. ✔ Deploy and maintain network security technologies and best practices. ✔ Create and maintain technical documentation including HLDs, LLDs, network diagrams, as-built documentation, BOMs, and knowledge transfer materials. ✔ Support operational escalations and ensure network performance, availability, and reliability. ✔ Collaborate with cross-functional teams to improve network architecture and operational efficiency. Required Qualifications 5+ years of experience in enterprise networking, network architecture, or infrastructure engineering. Strong hands-on experience with: Palo Alto Firewalls F5 Load Balancers Cisco ISE Cisco IOS & NX-OS Advanced knowledge of: TCP/IP IPSEC Site-to-Site VPN GRE Tunnels Client VPN NAT VRF Strong understanding of Data Center technologies: VPC VDC FCoE Fibre Channel (FC) Virtual Switching Expertise in Layer 2 technologies: Switching VLANs Spanning Tree Protocol (STP) Expertise in Layer 3 routing protocols: BGP OSPF EIGRP MPLS Experience with Wireless Network Design and Configuration. Strong analytical and troubleshooting skills. Preferred Qualifications Cisco Voice / Call Manager Cisco Meraki SD-WAN Software Defined Networking (SDN) Network Monitoring Solutions Cisco Catalyst Center Infoblox Nexus Dashboard VXLAN Certifications Preferred: CCNA – Cisco Certified Network Associate CCNP – Cisco Certified Network Professional Contract Details Dispatch-Based Freelance Opportunity Onsite Assignments Based on Client Demand Flexible Engagement Model Opportunity to Support Enterprise and Data Center Projects Advance Notice Provided Prior to Scheduled Activities Long-Term Collaboration Opportunities for High-Performing Engineers Please Note: This is not a full-time position. Engineers will be engaged based on client requirements and project availability. Activities may include scheduled deployments, implementations, troubleshooting, upgrades, and onsite support engagements.

Design, implement, and support scalable enterprise network infrastructure and security solutions. Troubleshoot complex connectivity issues and maintain detailed technical documentation such as HLDs and LLDs.

Requires over 5 years of experience in enterprise networking with deep expertise in Cisco systems, firewalls, and data center technologies. Preferred certifications include CCNA and CCNP.

Identified from the job description. Confirm important requirements above.

• Palo Alto Firewalls
• F5 Load Balancers
• Cisco ISE
• Cisco IOS & NX-OS
• TCP/IP
• IPSEC VPN
• BGP
• OSPF
• EIGRP
• MPLS
• VPC
• VDC
• FCoE
• Fibre Channel
• VLANs
• Spanning Tree Protocol

• Technology
• Engineering
• Consulting

Minimum education

Professional degree

Minimum experience

5+ years

Apply by

Aug 29, 2026

Posting language

English

Working hours

40 hours per week

Seniority

Associate

Application method

Direct apply is available