网络管理 Jobs

I need help setting up my new Lenovo Slim laptop and troubleshooting some issues. Specific tasks include: - Setting up and configuring OneDrive, as I'm encountering a strange access error message when trying to load documents. Ideal skills and experience: - Experience with Lenovo laptops and OneDrive - General troubleshooting expertise - Ability to connect and configure internet settings

Engaged by StarNet WiFi as a contracted network technician (team of 2) to design and deploy a 3-storey Starlink-powered WiFi network for commercial data bundle resale to guests. Mounted and aligned the Starlink dish on the rooftop, routing and terminating cabling from the dish down to the equipment rack. Configured a Ruijie RG-EG406XS-P multi-WAN gateway (RouterOS) as the core router, integrating Starlink alongside existing ISP connections for load balancing and failover. Installed a Ruijie SFP+ module and managed switch to provide uplink connectivity between the gateway and access layer. Deployed and configured 9 Ruijie RG-EW300 PRO wireless access points across three floors for full-building coverage, using the Reyee Cloud app for centralised provisioning and self-organising network (SON...

I need an experienced hand to get a brand-new point-to-point Wide Area Network up and running from scratch. My goal is a clean, secure link between two sites that can carry voice, data, and future VPN traffic without hiccups. Here’s the situation: hardware is on-site and powered, public IPs are assigned, but nothing has been stitched together yet. I want the routers fully configured, routes verified, and the handoff ready for my team to monitor going forward. Deliverables • Complete router/switch configs (exported text files) • Visio or PDF topology diagram highlighting interfaces, IP blocks, and routing logic • Short run-book: step-by-step notes on how you brought the circuit up and the key commands to validate status Acceptance criteria • End-to-end p...

My Windows PC stutters constantly, regardless of whether it's during startup, while running programs, or even while playing games. This issue started after I recently installed new hardware. I'm looking for an experienced technician who can diagnose and fix this problem. The ideal freelancer should have: - Expertise in Windows operating systems - Experience troubleshooting hardware-related stuttering issues - Knowledge of system performance optimization - Ability to work with various hardware components Please include in your bid any relevant experience you have and an estimated timeline for completion.

I need an experienced network-security professional to conduct an in-depth threat analysis of our cloud infrastructure. The environment spans several AWS accounts with VPC peering, Transit Gateway routing, and a mix of Kubernetes clusters and serverless workloads. Your job is to map likely attack vectors, evaluate existing controls, and clearly articulate the real-world risks we face. I will grant read-only access to relevant CloudTrail, GuardDuty, and VPC Flow Logs as well as diagrams of our current architecture. Feel free to weave in additional tooling such as Nmap, Nessus, Wireshark, Metasploit, or custom scripts—whatever produces the most accurate picture. Deliverables • Threat model highlighting assets, actors, and entry points • Evidence-backed risk ratings wi...

My production Kubernetes cluster needs hands-on assistance migrating the networking layer from its current, rather intricate CNI to either Cilium (eBPF with WireGuard) or Calico with WireGuard encryption. The overriding goal is a seamless, zero-downtime cut-over while preserving all of our existing custom NetworkPolicies—east-west, ingress, and egress traffic must continue to behave exactly as it does today. Scope of work The engagement starts with a deep-dive into the present topology, routing rules, and policy objects. From there, a step-by-step migration playbook and rollback plan must be crafted, executed first in staging, then in production. Once live, I need empirical data that compares both solutions: latency, throughput, CPU and memory overhead, and encryption overhead und...

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We are seeking a highly skilled, discreet, and expert Cyber Security Specialist / Internal Systems Auditor to monitor platform integrity, investigate staff activities, and ensure strict compliance with company policies. The ideal candidate will operate quietly to identify system abuses, fraudulent activities, and policy violations. Key Responsibilities Audit & Investigation: Actively monitor and investigate the activities of all staff members (from new hires to 20+ year veterans). Threat & Error Detection: Identify system errors, duplicate accounts, fake profiles, and malicious actors within the network. Account Actions: Permanently block and suspend accounts involved in unauthorized activities, including casino/gambling operations, harmful political agendas, or toxic/aggressive...

We are Optedif Formation, a French training organization delivering short professional training programs for adults, entrepreneurs, employees, freelancers, job seekers and people in career transition. We are looking for experienced trainers, instructors or subject-matter experts in Administration des réseaux informatiques (Network Administration) to deliver short training sessions in French. The training may be delivered remotely or on-site depending on the learners’ needs. Scope of Work The selected freelancer will be expected to: * Deliver short training sessions in French * Adapt explanations to adult learners * Share practical and operational knowledge * Use existing training material or help improve it when needed * Create a positive and constructive learning environ...

I’m looking to engage an experienced ethical-hacking professional who can quickly assess my organisation’s overall security posture and recommend—or perform—the most appropriate next steps. Because I haven’t yet narrowed the scope to a single service, I’m open to anything from a thorough penetration test and security audit to incident-response planning and ongoing threat monitoring. You’ll begin with a discovery call to clarify the current environment, critical assets, compliance requirements, and any known pain points. From there, I expect you to outline a concise plan of action, including milestones, reporting cadence, and the specific toolsets you intend to use (e.g., Metasploit, Burp Suite, Nessus, Wireshark or equivalents). Key deliverab...

Hardware networking .....Detail-oriented IT professional with a certification in Hardware and Networking. Skilled in PC assembling, OS installation, and basic LAN/WAN troubleshooting. Eager to leverage foundational knowledge of TCP/IP, routers, and switches to support daily IT operations and resolve end-user issues efficiently.

Project Overview: We are looking for an expert, senior-level Enterprise Network Architect/Engineer to lead a multi-vendor project deployment, design review, and the production of final As-Built documentation. Our current infrastructure environment requires deep architecture alignment across modern software-defined networking (SDN), zero-trust security components, and centralized management fabrics. This is a critical infrastructure project requiring strict adherence to security compliance, high availability, and optimal traffic routing principles. Scope of Work: 1. Architecture & Design Review -Conduct a thorough review of the current network topologies, security zones, and high-level designs. -Identify potential bottlenecks, asymmetrical routing risks, and security gaps before act...

Our internal security team needs an external, red-team style penetration test focused exclusively on the network infrastructure. I want you to simulate real-world attacks against three key components—our firewalls, routers & switches, and enterprise-grade wireless networks—to see how quickly and effectively our blue team detects, contains, and responds. Scope • Engage the perimeter and internal segments behind our firewalls. • Enumerate and exploit misconfigurations on Cisco-class routers and layer-3 switches. • Probe the corporate and guest Wi-Fi environments, including roaming vulnerabilities and weak encryption scenarios. Primary objective The engagement is not just about finding vulnerabilities; the bigger aim is to pressure-test our incident-re...

We are looking for an experienced and highly skilled Versa Software Defined WAN (SD-WAN) trainer to deliver a professional virtual training program for our client. Requirements: Strong hands-on experience with Versa SD-WAN deployment, configuration, administration, and troubleshooting. Prior experience delivering corporate or enterprise-level technical training. Excellent communication and presentation skills. Ability to customize the training content based on client requirements. Relevant Versa certifications are preferred. Deliverables: Updated trainer profile/resume highlighting relevant experience. Detailed course content (Training Agenda/TOC). Training methodology and delivery approach. Lab setup and infrastructure requirements (if applicable). Trainer availability and commercia...

I need help with domain setup on Google, Cloudflare, and Squarespace. The primary goal is to redirect traffic. Requirements: - Configure DNS for domain setup on: - Google - Cloudflare - Squarespace - Ensure proper redirection of traffic Ideal Skills and Experience: - Experience with Google DNS, Cloudflare, and Squarespace - Strong understanding of DNS records and traffic redirection

My site-to-site IPsec tunnel was built following best-practice guides, yet the link keeps dropping for reasons I can’t see. The firewall on my side is an Opnsense appliance, and each time the tunnel fails the logs simply show that the connection drops intermittently without any clear error codes. I may have tweaked something recently, but I’m honestly not sure which setting—so I need a fresh, expert pair of eyes. You should be comfortable working with Opnsense and, ideally, have experience on Checkpoint or other enterprise firewalls so you can think through the usual Phase 1 / Phase 2, NAT-T, lifetime, and crypto-profile culprits quickly. I can give you full access to the existing configuration, live logs, and packet captures through a remote session. The job is compl...

Production-Grade DevOps Automation Lifecycle (DevBoard Platform Deployment) This project showcases an end-to-end, enterprise-ready infrastructure deployment designed to transform a standard software application into a highly resilient, scalable, and fully automated cloud system. Using DevBoard—a production-style project management environment—as the blueprint, I built a zero-drift architecture that treats infrastructure strictly as code. Instead of manual operations, the entire platform delivery lifecycle is version-controlled, containerized, and managed programmatically. This setup eliminates deployment failures, secures underlying network layers, and establishes continuous observability to maximize platform uptime. Key Deliverables & Tech Architecture Infrastructure ...

I need a complete examination system that runs entirely over our local Windows network, so students can sit an “online” test without any internet connection. The solution must let each workstation connect to a central server, pull the exam, and push results back immediately. Key capabilities • Randomized question order so no two students see the same sequence • Per-student time tracking with an automatic lock-out when the clock hits zero • Automated grading that releases scores the moment an exam is submitted Question formats to support • Multiple choice • Short answer • Essay Administrators have to be able to build question banks, schedule exams, watch real-time progress, and export detailed results. A simple, distraction-free candi...

Job Title Freelance Project Manager – Network Infrastructure & Structured Cabling Description We are building a database of experienced freelance Project Managers across Africa to support upcoming network infrastructure and structured cabling projects. This is an opportunity to be considered for future site-based assignments in various African locations. Responsibilities Coordinate on-site project activities Supervise contractors and installation teams Monitor project schedules and progress Prepare daily and weekly progress reports Escalate risks and issues promptly Coordinate with stakeholders to ensure timely project delivery Ensure quality and safety standards are maintained Preferred Experience Candidates should have experience in one or more of the following: Structur...

I have an old FreeBSD installation that boots; I copied the entire disk image onto a USB drive and now need the document files extracted. The priority is .doc and .pdf documents that were kept inside a handful of specific directories (I’ll send their full paths once we start). The job is simple in scope but requires solid FreeBSD / UFS-2 recovery know-how. You will need to: • Mount or image-clone the USB safely (read-only first). • Locate the requested directories and pull every .doc and .pdf you can find. • Verify file integrity—open the recovered documents or run hash checks so I know they are intact. • Package the results in a tidy archive and hand it back to me, along with a brief log of what you did (commands, tools, and any issues encountere...

Configure HG8120C XPON ONU to use LAN 1 as WAN port instead of GPON, to access Internet & VoIP Server on LAN port 2 in Routing mode bet Port1 & Port 2.

I need a skilled developer to configure and manage an Impinj R700 reader for us. The primary use will be for writing CAP (Common Alerting Protocol) messages. Key Requirements: - Configure and manage the Impinj R700 reader - Develop CAP messages Ideal Skills and Experience: - Expertise in Impinj R700 or similar RFID technology - Experience with CAP and related protocols - Strong configuration and management skills - Ability to provide ongoing support post-setup Please only bid if you have relevant experience.

We are looking for a highly experienced and certified Huawei Networking Trainer to deliver a professional virtual training program on Huawei LAN, Wireless, WAN Devices, and Optical Fiber Network Devices. Trainer Requirements: Strong hands-on experience with Huawei Enterprise Networking solutions. Huawei certification preferred (HCIA/HCIP/HCIE or equivalent). Proven experience delivering corporate training (online or classroom). Excellent communication and presentation skills. Ability to conduct practical, lab-based sessions with real-world networking scenarios. Training Topics: Huawei LAN Technologies (Switching, VLANs, STP, Link Aggregation) Huawei Wireless Networking (WLAN Architecture, AP Configuration, WAC) Huawei WAN Technologies (Routing, Static & Dynamic Routing, VPN, MPLS F...

I may need 5-7 sessions of 45 mins to an hour, early UK hours On high-performance computing and want clear, actionable insight into where the field is heading. The emphasis is firmly on future HPC roadmaps, covering algorithms, hardware, and the emerging software tool-chain—while still grounding the discussion in today’s production realities such as Open OnDemand (OOD), GitLab, Slurm, Linux and Cloud-based extensions. Here’s how I’d like us to work together: • Kick-off call: HPC best practices, HPC challenges, and HPC overview. • Working sessions (2–3): walk me through the near- and long-term HPC roadmap, then zero-in on quantum computing—detailing quantum algorithms, hardware architectures, and software tools. Deliverables 1. Slide ...

I need an experienced systems engineer who can dive straight into our Windows Server 2012 R2 environment and a fleet of Windows 10 workstations. The first assignment is to stabilise, harden, and document these platforms, but you will also touch the broader estate that includes LAN/WAN gear, backups, MS-SQL, IIS 8+, and collaboration services such as Office 365, OneDrive, and G-Suite. Day-to-day you will: • Review and correct Active Directory, Group Policy, DNS, DHCP, and IIS configurations. • Patch servers and desktops, close security gaps, and verify compliance. • Optimise login scripts, roaming profiles, and folder redirection for Windows 10 users. • Troubleshoot escalated tickets through our help-desk tool and provide clear resolution notes. • Coordin...

Ich betreibe einen neuen 3-Node-Hyper-V-Cluster in Mammendorf. Die Storage-Anbindung ist bereits funktionsfähig; nun steht noch die saubere Einrichtung der Netzwerke an. Konkret geht es um das Management-Netz, sodass alle Hosts stabil erreichbar sind und spätere Live-Migrationen ohne Unterbruch vorbereitet sind. Was ich benötige: • Vor Ort Support in Mammendorf, deutschsprachige Unterstützung • Aufnahme des aktuellen Cluster-Setups und Prüfung der vorhandenen vSwitch-/NIC-Konfiguration • Planung und Umsetzung des Management-Netzes auf allen drei Hosts (inkl. IP-Vergabe, optional VLAN und Teaming, falls empfohlen) • Funktionstest mit Failover-Cluster-Manager und Hyper-V-Manager • Kurze Dokumentation der durchgeführten Schritte, ...

A batch of new switches is arriving at our premise and I need reliable smart-hands assistance to swap them in without interrupting service. The job is strictly on-site and centres on a wired network setup: unplug the legacy hardware, mount and cable the replacement devices, power-test, and clear the rack of the retired units for collection. You will be guided in real time by a remote engineer who will confirm port assignments and link-light checks. No software configuration is required—just precise physical work and the ability to follow clear, step-by-step instructions while keeping everything tidy and properly labelled. Deliverables • New devices physically installed, patched and powered on • Old devices removed, boxed and labelled for return • Photogr...

I am looking for a freelancer to set up an auto-rotating proxy system to handle network requests efficiently. The solution should ensure seamless proxy rotation and be capable of managing high traffic without triggering rate limits. Ideal candidates should have expertise in networking, proxy systems, and related configurations.

I need a Remote Access VPN set up on my Fortinet firewall so that staff can connect securely from outside the office using FortiClient. The connection will rely on simple password-only authentication—no tokens or certificates this time—so the job focuses on properly creating user accounts, assigning policies, and ensuring encryption settings follow Fortinet best practices. Here’s what I expect once you’re done: • A working FortiClient profile that users can import and connect with. • All necessary firewall objects, user groups, and security policies configured and saved. • Clear step-by-step documentation so I can duplicate the setup or make edits later. • A brief remote test session to confirm that the tunnel comes up, internal resources are re...

I need a well-researched, publish-ready case study that examines how a technology company strengthened its overall network security by redesigning its firewall implementation. The goal is to show, step by step, what triggered the initiative, which design choices were made, how the solution was deployed, and what measurable results followed. Scope • Center the narrative on network security within a real or anonymized technology-sector setting. • Give special, in-depth attention to firewall architecture and rule-set hardening; intrusion detection systems or VPN references are welcome only where they help explain the firewall strategy. • Blend technical detail—vendor models, topology diagrams, configuration highlights—with business impact (risk reduction, com...