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 Responsibiliti es✔ Design and develop scalable network solutions based on business and technical requirement s.✔ Implement and support enterprise network infrastructure, security, and connectivity solution s.✔ Perform network assessments, architecture reviews, and provide strategic design recommendation s.✔ Troubleshoot and resolve complex network, hardware, software, and connectivity issue s.✔ Deploy and maintain network security technologies and best practice s.✔ Create and maintain technical documentation including HLDs, LLDs, network diagrams, as-built documentation, BOMs, and knowledge transfer material s.✔ Support operational escalations and ensure network performance, availability, and reliabilit y.✔ Collaborate with cross-functional teams to improve network architecture and operational efficienc y. Required Qualificati ons5+ years of experience in enterprise networking, network architecture, or infrastructure engineeri ng.Strong hands-on experience wi th:Palo Alto Firewa llsF5 Load Balanc ersCisco ISECisco IOS & NX -OSAdvanced knowledge of:TCP /IPIPSEC Site-to-Site VPNGRE Tunn elsClient VPN NAT VRFStrong understanding of Data Center technologi es: VPC VDCF CoEFibre Channel ( FC)Virtual Switch ingExpertise in Layer 2 technologi es:Switch ingVL ANsSpanning Tree Protocol (S TP)Expertise in Layer 3 routing protoco ls: BGPO SPFEI GRPM PLSExperience with Wireless Network Design and Configurati on.Strong analytical and troubleshooting skil ls. Preferred Qualificat ionsCisco Voice / Call Man agerCisco Me rakiSD -WANSoftware Defined Networking ( SDN)Network Monitoring Solut ionsCisco Catalyst Ce nterInfo bloxNexus Dashb oardV XLAN Certifica tionsPrefe rred:CCNA – Cisco Certified Network Asso ciateCCNP – Cisco Certified Network Profess ional Contract D etailsDispatch-Based Freelance Oppor tunityOnsite Assignments Based on Client DemandFlexible Engagement ModelOpportunity to Support Enterprise and Data Center Pr ojectsAdvance Notice Provided Prior to Scheduled Acti vitiesLong-Term Collaboration Opportunities for High-Performing Eng ineers 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 engag ements.

Design, implement, and support scalable enterprise network infrastructure and security solutions. Perform network assessments, troubleshoot complex connectivity issues, and maintain detailed technical documentation.

Requires over 5 years of experience in enterprise networking or infrastructure engineering with deep expertise in Cisco, Palo Alto, and F5 technologies. Candidates should possess strong knowledge of routing, switching, and data center technologies.

Identified from the job description. Confirm important requirements above.

• Network Architecture
• Palo Alto Firewalls
• F5 Load Balancers
• Cisco ISE
• Cisco IOS
• Cisco NX-OS
• TCP/IP
• IPsec Site-to-Site VPN
• GRE Tunnels
• Data Center Technologies
• Layer 2 Switching
• Layer 3 Routing
• BGP
• OSPF
• Wireless Network Design
• Troubleshooting

• Technology
• Engineering
• Consulting

Minimum education

Professional degree

Minimum experience

5+ years

Apply by

Aug 22, 2026

Posting language

English

Working hours

40 hours per week

Seniority

Associate

Application method

Direct apply is available