Network Security is an important component of IT solutions as it keeps organizations safe from cyber threats. A Network Security Consultant can help ensure a company's network is properly secured. They provide a range of expert services including evaluation of the existing security posture, recommending security solutions, providing project management and software solutions, monitoring and reporting on usage, incident response and forensics. Network Security requires a deep understanding of the underlying systems and processes.

Here's some projects that our expert Network Security Consultants made real:

  • Find the source of cyber threats to enhance security
  • Create secure solutions working with double routers, VPN and firewalls
  • Produce educational materials to spread knowledge in network security field
  • Design secure computer system architectures for clients of varying sizes
  • Utilize sophisticated technologies such as SDN (Soft Defined Networks), SVM (Support Vector Machine), Machine Learning to classify traffic
  • Identify Suspicious behavior in digital data for forensic investigations
  • Enhance network security with cutting edge algorithms and software solutions
  • Test and mitigate potential cyber threats from denial of service attacks.

Network Security is essential for any organization to remain safe from cyber threats online. Whether you need to review your existing Network Security posture, implement secure protection systems or create educational materials for internal staff, an experienced Network Security Consultant on Freelancer.com can help bring your ideas to life. Contact one now on the world's leading freelancing website and get the peace of mind that comes with secure networks.

From 23,713 reviews, clients rate our Network Security Consultants 4.9 out of 5 stars.
Hire Network Security Consultants

Network Security is an important component of IT solutions as it keeps organizations safe from cyber threats. A Network Security Consultant can help ensure a company's network is properly secured. They provide a range of expert services including evaluation of the existing security posture, recommending security solutions, providing project management and software solutions, monitoring and reporting on usage, incident response and forensics. Network Security requires a deep understanding of the underlying systems and processes.

Here's some projects that our expert Network Security Consultants made real:

  • Find the source of cyber threats to enhance security
  • Create secure solutions working with double routers, VPN and firewalls
  • Produce educational materials to spread knowledge in network security field
  • Design secure computer system architectures for clients of varying sizes
  • Utilize sophisticated technologies such as SDN (Soft Defined Networks), SVM (Support Vector Machine), Machine Learning to classify traffic
  • Identify Suspicious behavior in digital data for forensic investigations
  • Enhance network security with cutting edge algorithms and software solutions
  • Test and mitigate potential cyber threats from denial of service attacks.

Network Security is essential for any organization to remain safe from cyber threats online. Whether you need to review your existing Network Security posture, implement secure protection systems or create educational materials for internal staff, an experienced Network Security Consultant on Freelancer.com can help bring your ideas to life. Contact one now on the world's leading freelancing website and get the peace of mind that comes with secure networks.

From 23,713 reviews, clients rate our Network Security Consultants 4.9 out of 5 stars.
Hire Network Security Consultants

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    24 jobs found

    I’m facing a network security concern in my current environment and want the entire fix documented in a way that is clear, engaging, and visually appealing. In short, I need the technical know-how of network and connectivity support combined with creative services that can turn complex steps into materials my wider team will actually read and follow. Here’s what I’m after: • Identify and explain the root of the security issue, showing me where the vulnerability sits. • Provide a concise remediation plan and then implement or guide me through the fix. • Translate that plan into easy-to-digest creative assets—this could be a short illustrated guide, an infographic, or another visual format that explains the solution and any ongoing best practic...

    £242 Average bid
    £242 Avg Bid
    45 bids

    I need a skilled hardware installer to set up 1-5 networking access points. The ideal candidate should have: - Experience with installing networking devices, specifically access points - Knowledge of network configuration and optimization - Ability to ensure secure and efficient connectivity - Relevant certifications (e.g., CompTIA Network+, Cisco Certified Network Associate) Please provide examples of similar work done and your approach to the task.

    £304 Average bid
    £304 Avg Bid
    16 bids

    I need to tighten up permission inheritance on a single shared folder in my Synology NAS. The goal is to: • Apply read-only access for one group of users • Grant full read/write access to another group • Hide every other sub-folder except one that should remain visible and usable to everyone who signs in The shared folder already exists; I just haven’t nailed the right combination of ACL rules and “Apply to this folder, sub-folders and files” options in DSM. You’ll connect remotely (QuickConnect, OpenVPN or any method you recommend) and walk me through: 1. Cleaning up the current permission tree so nothing conflicting is left behind 2. Setting the correct ACLs and confirming they inherit properly 3. Testing with real user accounts to prov...

    £14 Average bid
    £14 Avg Bid
    7 bids

    I have a web-based project running only on my own machine and I want proof of how breakable it actually is. Your task is to ethically hack this localhost build, show me exactly where it fails, and explain how to fix each issue. The engagement is strictly a security audit: I own the code and the environment, so there are no legal grey areas. The spotlight is on the OWASP Top Ten for AI-driven applications—things like insecure model interfaces, data poisoning, privilege escalation through prompt injection, and any other risks unique to agents that call LLMs behind the scenes. Traditional web flaws (SQLi, XSS, broken auth, etc.) still matter, but only insofar as they intersect with the AI components. Because I need results ASAP, we will work in two short milestones: 1. Exploitation w...

    £35 Average bid
    £35 Avg Bid
    14 bids

    Customer: Knorr-Bremse Australia – Mackay (MKY) Site Address: 50 Enterprise Drive, Paget, QLD 4740, Australia Date: Monday, 17 August 2026 Start Time: 10:00 AM We are looking for a qualified Field Engineer / Network Engineer to attend site and complete a network hardware installation. Scope of Work Conduct a site risk assessment and take photographs of the rack where the Client’s network device will be installed. Share photographs and any identified risks with the coordinating Client representative before starting work. Inspect the supplied hardware kit and immediately notify the Client of any damage or missing items. Do not begin any installation work until approval is received from the coordinating Client representative. Build the connection between the provider router/NTU ...

    £19 / hr Average bid
    Local
    £19 / hr Avg Bid
    1 bids

    My 5G home connection is delivered through an Archer NX200 5G router and, like many 5G plans, it sits behind CGNAT. Because of this, I cannot reach my internal network from the outside world. The goal is clear: Remote Access. I need to log in reliably to my Computers, Smart Home Devices and Security Cameras, as well as a small PBX and a Draytek firewall. Dynamic DNS is already running with NOIP, yet CGNAT keeps every incoming request from ever reaching the LAN. What I’m looking for is a practical, reproducible way around that limitation: • A working solution that lets me initiate inbound connections (HTTPS, SSH, VoIP, etc.) from anywhere. • Detailed, step-by-step configuration on the Archer NX200 5G and any additional hardware, tunnel, or cloud service you recomme...

    £113 Average bid
    £113 Avg Bid
    35 bids

    I have an STC 5G connection running on a TP-Link Archer NX200 router. The connection is behind CGNAT, meaning I do not have a real public IP. I am looking for an expert to provide a solution to get a Dedicated Static Public IP so I can remotely access my internal network (Router management, SIP devices, etc.) using my noip DDNS Conditions: I cannot upgrade to a Business SIM card. I do not want to run a local PC 24/7 as a bridge. I just need a working Static IP solution that routes traffic from the outside directly into my local network. Please propose your method and how we can implement i

    £16 Average bid
    £16 Avg Bid
    14 bids

    I need a technician who can take this job from bare walls to a fully operational surveillance system. The work starts with assembling and securing a tidy, service-friendly rack, then running and labeling all network cables—indoors through ceilings and walls, outdoors through weather-proof conduit—so every drop ends cleanly in the rack and at each camera mount. All cameras are IP units and must be mounted both inside and outside the building. They have to operate with night vision, motion detection and true high-definition footage, so lens alignment, focus and network bandwidth should be verified on site. Once physically installed, each camera should be patched into the switch (PoE where possible), added to the NVR or VMS, and tested for live view and recording. Deliverables...

    £80 Average bid
    Local
    £80 Avg Bid
    3 bids

    I need hands-on help at our site to get a new network rack fully operational and to cover some light end-user support while we go live. Network side All the gear—routers, switches, firewalls, and wireless access points—is already on-site. Your job is to rack and stack each unit, connect power, patch copper and fiber exactly as shown on the diagrams (I’ll forward the latest versions before you arrive), and leave console cables in place so my remote engineers can jump in immediately. Once powered up, verify basic link status and let my team handle the advanced configuration. User side While the network equipment is booting, I’d like you to handle everyday issues for staff nearby: troubleshoot desktops and laptops that won’t boot or connect, sort out any pr...

    £30 / hr Average bid
    £30 / hr Avg Bid
    15 bids

    I’m looking for an experienced ethical hacker to probe my hybrid network—both wired and wireless—with the sole aim of uncovering security vulnerabilities. Scope and focus • Map the entire network topology, including any VPN entry points, routers, access points, and key servers. • Perform vulnerability scanning and targeted penetration testing against internal and external segments. • Validate findings through exploit proof-of-concepts where safe and appropriate, ensuring no disruption to production traffic. Deliverables 1. A clear, prioritized vulnerability report that explains each issue, its risk rating, and the affected assets. 2. Screenshots or logs that support every critical or high-risk finding. 3. Action-oriented remediation recommenda...

    £349 Average bid
    £349 Avg Bid
    28 bids

    # ALL CONTENT FALSIFIED WITH AI WILL BE REPORTED, AND YOUR ACCOUNT WILL BE BLOCKED. ## Test the availability of the domain on the following website: We are a European B2B cybersecurity company renaming our SaaS platform (network security policy management: firewall rules, segmentation, compliance automation). We want: a short, punchy, brandable name — 2–3 syllables — in the style of Okta, Vanta, Drata, Tufin. Modern and minimal. A hidden story or meaning behind the name (mythology, science, history, craft vocabulary, any language) is a big plus. It must be instantly readable and easy to pronounce in both English and French. Hard requirements (entries ignored if not met): The .com, .fr AND .io MUST be available for registration at standard price (no premium, no afterm...

    £427 Average bid
    Featured Guaranteed
    £427
    195 entries

    The project centers on tailoring our existing ERP so the HR, Inventory, and Finance modules align perfectly with the way we work. ERP Version & Platform Constraints - Version & Environment: Target environment is Odoo (v16 / v17) running on a self-hosted cloud VPS / environment. - Architectural Rules: All customizations must strictly follow standard Odoo module inheritance and ORM guidelines (no modifying core source files) to maintain database integrity and ensure seamless future version upgrades. - Performance Boundary: Dashboard queries must rely on indexed PostgreSQL custom views or clean ORM methods to avoid slow load times on heavy transactional data (, , ). Hybrid Focus (40% New Feature / 60% Module Optimization): New Feature Development (40%): - Building the Supplier Per...

    £324 Average bid
    NDA
    £324 Avg Bid
    108 bids

    I need a full-featured Video Management System that I can compile and run on a Linux environment. The solution must follow a clean server-client architecture, include 100 % source code, and scale reliably to at least 1 000 simultaneous camera streams drawn from a wide mix of global CCTV brands (ONVIF or equivalent interoperability is a must). Two core capabilities are non-negotiable: smooth multi-camera live view and fast, timeline-based playback of recorded footage. Everything—connection handling, recording, storage management, and UI—has to remain responsive even under heavy load. If you already support complementary functions such as motion-triggered recording or smart alerts, feel free to highlight them, but live view and playback come first. The initial focus will be on ...

    £3433 Average bid
    £3433 Avg Bid
    18 bids

    Senior Fortinet Engineer – Enterprise Design & Implementation We are looking for a Senior Fortinet Network Security Engineer to lead the logical design, implementation, testing, documentation and post-implementation support of an enterprise Fortinet deployment. The environment includes FortiGate 120G/200G, FortiManager, FortiAnalyzer, FortiSwitch, FortiAP, FortiAuthenticator, FortiSandbox, FortiClient EMS, FortiExtender and FortiEDR. Scope includes: • Network/security architecture and HLD/LLD • FortiGate configuration, policies, routing, NAT, VPN, HA, SD-WAN and security profiles • FortiManager/Analyzer deployment and integration • FortiSwitch/FortiAP configuration • Authentication and Security Fabric integration • Testing, troubleshooting and pro...

    £2782 Average bid
    £2782 Avg Bid
    17 bids

    We are developing a Shabbat-compliant smart alert lamp designed for observant households in Israel. The system connects Tuya-compatible smart lamps/switches with real-time emergency alert data (Pikud HaOref / Red Alert API). During Shabbat, the lamp must visually alert users (via color changes or preset light patterns) without violating Halachic principles (no user intervention, automated triggers, silent visual alerts, and local state memory). היקף עבודה ותחומי אחריות (Key Responsibilities & Scope): Tuya IoT Platform Configuration: Set up the Cloud project on Tuya IoT Developer Platform. Define Product ID (PID) and Data Points (DPs) tailored for custom smart lighting/alert states. Real-time API Integration & Bridge: Build a lightweight, high-availability backend bridge that ...

    £260 Average bid
    £260 Avg Bid
    76 bids

    I want a complete, ready-to-use SMTP server that lives on my Windows machine and lets me push out high-volume campaigns without the usual caps yet still places messages in the inbox, not the spam folder. Please build, configure, and fine-tune everything so the service runs smoothly with no username-and-password layer (that requirement is intentional because the environment is fully firewalled on our side). The core of the job is the full installation and optimisation of the SMTP engine you feel is best for Windows—MailEnable, hMailServer, PowerMTA, or another proven option are all fine as long as deliverability is strong. I also need the surrounding essentials: correct PTR, SPF, DKIM, and DMARC records, IP warming guidance, plus any queue-management or throttling tweaks that help ke...

    £319 Average bid
    £319 Avg Bid
    47 bids

    I need a cybersecurity specialist who can design and deploy a full-featured SIEM for my strictly on-premises environment. The number-one goal is rapid threat detection and incident identification, so every decision— from log sources to correlation rules— must serve that purpose. The platform you propose (Splunk, QRadar, Elastic, Graylog, or another commercial/open-source stack) should pull logs from our firewalls, core network devices and Windows/Linux endpoints, normalize them, correlate events in real time and raise actionable alerts. I also expect intuitive dashboards for security posture, drill-down timelines for investigations, and the ability to automate first-response actions where sensible. Beyond the build itself, I’m looking for clear documentation and a knowl...

    £387 Average bid
    £387 Avg Bid
    15 bids

    Objectives • Obtain an independent, manual penetration test to validate the security of the Selcomm platform and the isolation of customer environments. • Produce a formal report (with a redactable version) to evidence security assurance to enterprise customers. Environment (context) Solution: Selcomm billing platform — dedicated (non-cloud) software; virtualised Windows + Linux/Informix Hosting: Production: NTT data centre. Access/interfaces: Per-customer dedicated VLANs; site-to-site VPN; SSL/TLS and sFTP. No wireless Target list / scope (please price individually and combined) • A — External infrastructure: internet-facing VPN endpoint(s), any public web/portal, mail gateway. • B — Web application: authenticated & unauthenticated test of the Se...

    £1977 Average bid
    £1977 Avg Bid
    65 bids
    Work Email Spam Reduction
    1 day left
    Verified

    I’m drowning in junk that keeps slipping into the work mailboxes on my own domain, so I need an email-security specialist to tighten things up fast. The accounts are not on Gmail or Outlook; they’re hosted directly on my domain, and right now the basic filtering isn’t doing the job. Here’s what I’m after: audit the existing server set-up, update any DNS records (MX, SPF, DKIM, DMARC), tune or replace the current spam-filter rules, and leave me with a clean inbox that still accepts every legitimate message. You’ll get temporary access to the control panel and DNS so you can: • Inspect mail logs and current filter scores • Correct or add SPF, DKIM and DMARC records • Configure SpamAssassin (or a similar tool) and fine-tune thresholds ...

    £21 Average bid
    £21 Avg Bid
    33 bids

    I need an experienced IIS specialist to turn my currently non-secure site into a fully HTTPS site using the SSL certificate I already own. The website sits on a standalone computer, so you will be working directly with a single IIS instance and no additional sub-domains. Before we bind the certificate, there are a couple of issues on the live site that must be resolved. Once those are out of the way, I expect the certificate installed, HTTPS bindings configured, and a clean HTTP→HTTPS redirect put in place so every page loads without browser warnings. Acceptance criteria • All existing site issues fixed and pages render correctly on HTTP before SSL work begins • SSL certificate imported, bound to the site, and trusted by major browsers • Automatic redirect for...

    £297 Average bid
    £297 Avg Bid
    197 bids
    Eliminate Spam on Ionos Server
    20 hours left
    Verified

    Our company mailbox on an Ionos-hosted server is being flooded with unwanted messages and I need an expert to stop them quickly and cleanly. The mail flow passes through Ionos before it reaches Microsoft Outlook on the desktop, so whatever you implement must sit at server level and not rely on individual client rules. What I already know • The problem is on the company email server, not a personal inbox. • We run on the Ionos mail platform (not Exchange or Google). • Spam ranges from phishing attempts to the usual marketing clutter—if it’s malicious, I want it blocked; if it’s legitimate but irrelevant, I want it routed to junk automatically. What I’m hoping you will do 1. Audit current MX, SPF, DKIM and DMARC records, then correct or harden...

    £17 Average bid
    £17 Avg Bid
    29 bids
    Hetzner VMWare & Mikrotik Setup
    12 hours left
    Verified

    I’m moving a bare-metal server at Hetzner over to a fully virtualized environment and want the foundation built right the first time. Here’s what I need: • Clean installation of the latest stable ESXi on the Hetzner host, followed by all current updates and patches. • Basic performance tuning so the hypervisor is ready for production workloads (CPU scheduling, datastore alignment, SSD caching if available, etc.). • Creation of well-structured subnets for multiple tenant VMs. • Firewall rules and protection logic on my MikroTik RouterOS appliance that will sit in front of the ESXi host, including NAT, filter, and basic DDoS hardening. I'm awaiting to order the server and necessary requirements for the setup; you will have to provide all require...

    £105 Average bid
    £105 Avg Bid
    28 bids

    Saya membutuhkan bantuan profesional di bidang teknologi untuk memastikan sistem kami tetap berjalan lancar setiap hari. Fokus utamanya adalah menjaga kestabilan layanan, memonitor performa, serta menanggapi masalah kecil sebelum berkembang menjadi gangguan besar. Tugas inti: • Melakukan pemeriksaan rutin pada server, aplikasi, dan jaringan. • Menangani troubleshooting dasar ketika muncul error atau penurunan kinerja. • Memberikan saran praktis agar operasional tetap optimal dan aman. Infrastruktur kami sudah aktif; saya hanya perlu dukungan berkelanjutan agar semuanya “lanjut beroperasi” tanpa hambatan. Silakan ajukan jika Anda terbiasa bekerja cepat, komunikatif, dan berpengalaman dalam lingkungan teknologi produksi.

    £273 Average bid
    £273 Avg Bid
    5 bids

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