네트워크 엔지니어링 Jobs

I need a working U.S.–based SIP trunk that plugs straight into my existing 3CX PBX, and I need it online immediately. This is for a live business system, so downtime is not an option. Here’s what I am expecting from you: • Provide a fully-provisioned SIP route (inbound and outbound) that registers successfully with 3CX and passes test calls. • Supply clear configuration details—host, authentication, codecs supported, 911 compliance, and any DID options—so I can import them quickly. • Hand over written step-by-step instructions or a short screen-share session for final cut-over. Please respond only if you can deliver right away. Include a detailed proposal outlining the solution you will supply, how you will integrate with 3CX, and your est...

Looking for a Palo Alto Networks engineer for a quick paid technical engagement. A skilled PAN engineer should be able to complete the scope in roughly 1–2 hours. We’re primarily looking for someone comfortable with Palo Alto hardware, networking fundamentals, and basic security administration tasks. Remote / flexible timing. Short-duration project with immediate start available.

I’m rolling out a large-scale CCTV upgrade across more than ten retail locations and need an experienced wireman to handle all cabling and camera terminations. These are busy commercial stores, so neat trunking, tidy rack work, and zero-downtime switchovers are essential. Your role covers pulling and labeling low-voltage cable, mounting cameras, landing connections in the comms rack, and proving signal back to the NVR. You’ll work alongside my store managers after hours or during low-traffic windows to avoid disrupting sales. Familiarity with Cat6, PoE switches, and basic IP camera configuration will keep the workflow smooth, though I will handle final software setup myself. Deliverables • Fully wired and tested camera runs at each site • Clean as-built diag...

Job Role: Freelance Network Engineer (Onsite Support) Duration: 1 Day Onsite Assignment Responsibilities: Provide onsite network installation and support. Troubleshoot network connectivity and hardware issues. Configure and verify routers, switches, and firewall devices. Perform cable connectivity and port checks. Coordinate remotely with the client or technical team if required. Ensure proper documentation and task completion updates. Follow onsite safety and client procedures. Required Skills: Experience in network troubleshooting and support. Knowledge of routers, switches, firewalls, and LAN/WAN environments. Familiarity with Cisco/Juniper/HP or similar networking devices. Basic understanding of IP addressing, VLANs, and network testing. Ability to work independently onsite. Good c...

I run a busy schedule of trade shows in the Orlando area and need a reliable technician I can call on whenever we roll into town. Your main focus will be keeping our registration operation online and headache-free. What the work looks like • Pre-show bench testing of network gear, computer terminals, and our proprietary registration software/hardware in the warehouse or hotel ballroom. • On-site setup: cabling, router/switch configuration, imaging or re-imaging laptops/kiosks, and confirming every station can reach the show database before doors open. • Live-event coverage: rapid troubleshooting of network drops, frozen terminals, printer jams, and any software hiccups while attendees check in. • Post-show teardown, packing, and fault reporting. Typical gear y...

I need an expert to improve the performance of my AWS VPC. The goal is to enhance my network performance to support a high-demand environment. Key objectives include: - Reducing latency - Increasing throughput - Enhancing reliability Ideal skills and experience: - Extensive knowledge of AWS networking, especially VPC Site to Site VPN with On-prem, Firewalls, IGW, Security Group, NAT GW - Proven track record in optimizing AWS and campus Networking environments - Strong understanding of network latency, throughput, and reliability metrics - AWS networking certifications would be a plus

I’m facing recurring connectivity and performance issues across my small-office network and need a technician who focuses specifically on network support to step in quickly. The job is entirely remote: you’ll connect to my environment, pinpoint the root cause of dropped connections and sluggish speeds, and then apply a clean, documented fix. Here’s what I expect: • A thorough diagnostic session covering routers, switches, and current cabling layout (where traceable from afar). • Implementation of configuration changes or firmware updates that restore stable throughput. • A concise report outlining the problem, the steps you took, and any preventive recommendations. Experience with common SMB hardware (Cisco, Ubiquiti, MikroTik, or similar) and standa...

NS-3 Network Simulation Task Project Overview I am looking for assistance with a small networking task using NS-3 which can be downloaded via: (ns-allinone-3.35 version). The goal of this task is to work with the provided simulation example and modify it to evaluate network performance metrics. The task focuses on understanding how NS-3 can be used for analyzing communication networks that include both wired and wireless connections. Required Tasks The selected freelancer should: • Modify the source file in NS-3. • Calculate and display the following performance metrics at the end of the simulation: o End-to-end delay o Throughput • Update the client node behavior so it sends more than one packet during the simulation. • Use the MakeCallback() function within th...

I’m facing recurring connectivity and performance issues across my small-office network and need a technician who focuses specifically on network support to step in quickly. The job is entirely remote: you’ll connect to my environment, pinpoint the root cause of dropped connections and sluggish speeds, and then apply a clean, documented fix. Here’s what I expect: • A thorough diagnostic session covering routers, switches, and current cabling layout (where traceable from afar). • Implementation of configuration changes or firmware updates that restore stable throughput. • A concise report outlining the problem, the steps you took, and any preventive recommendations. Experience with common SMB hardware (Cisco, Ubiquiti, MikroTik, or similar) and standa...