Internet Security Jobs

Internet Security is a highly important arena of information technology, which involves the prevention of data, systems and networks from malicious intrusions and other cyber attacks. An Internet Security Expert is tasked with employing a broad range of defensive and analytical measures to protect the confidentiality, integrity and availability of computer systems, networks and data. With their expertise in Information Assurance (IA), these professionals use their knowledge in cyber intelligence and counterintelligence, firewall protection, authentication mechanisms, intrusion detection systems (IDS) and much more to protect clients from cyber-attacks while keeping an eye out for potential weaknesses.

Here's some projects that our expert Internet Security Experts made real:

  • Developing security protocols for actors in online communications
  • Implementing technical solutions to protect company email addresses against malicious entities
  • Crafting secure networks for serviced-based organizations to ensure data cannot be manipulated or destroyed
  • Working on IT audits for data recovery companies to ensure their infrastructure is correctly documented with appropriate security measures in place.
  • Locating sources of hacker activity to make sure the client’s system or network remains safe from unauthorized access
  • Troubleshooting WordPress security issues to safeguard companies from hackers
  • Cleaning up any threats of malware and safeguarding websites against future infections.

As clearly illustrated by this list of projects, an Internet Expert can be a valuable asset to any organization that relies heavily on digital methods of communication. By enlisting the help of these experts, clients can protect their networks and data without wasting resources on ineffective solutions. And with Freelancer.com, clients can make use of its platform to find the professional whom they believe can make their dreams come true. So if you’re looking for an Internet Security Expert, feel free to post your project on Freelancer.com and start your journey running towards a secure future!

From 57,218 reviews, clients rate our Internet Security Experts 4.9 out of 5 stars.
Hire Internet Security Experts

Internet Security is a highly important arena of information technology, which involves the prevention of data, systems and networks from malicious intrusions and other cyber attacks. An Internet Security Expert is tasked with employing a broad range of defensive and analytical measures to protect the confidentiality, integrity and availability of computer systems, networks and data. With their expertise in Information Assurance (IA), these professionals use their knowledge in cyber intelligence and counterintelligence, firewall protection, authentication mechanisms, intrusion detection systems (IDS) and much more to protect clients from cyber-attacks while keeping an eye out for potential weaknesses.

Here's some projects that our expert Internet Security Experts made real:

  • Developing security protocols for actors in online communications
  • Implementing technical solutions to protect company email addresses against malicious entities
  • Crafting secure networks for serviced-based organizations to ensure data cannot be manipulated or destroyed
  • Working on IT audits for data recovery companies to ensure their infrastructure is correctly documented with appropriate security measures in place.
  • Locating sources of hacker activity to make sure the client’s system or network remains safe from unauthorized access
  • Troubleshooting WordPress security issues to safeguard companies from hackers
  • Cleaning up any threats of malware and safeguarding websites against future infections.

As clearly illustrated by this list of projects, an Internet Expert can be a valuable asset to any organization that relies heavily on digital methods of communication. By enlisting the help of these experts, clients can protect their networks and data without wasting resources on ineffective solutions. And with Freelancer.com, clients can make use of its platform to find the professional whom they believe can make their dreams come true. So if you’re looking for an Internet Security Expert, feel free to post your project on Freelancer.com and start your journey running towards a secure future!

From 57,218 reviews, clients rate our Internet Security Experts 4.9 out of 5 stars.
Hire Internet Security Experts

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    18 jobs found

    Join our mission to make the digital world safer! As a Bug Bounty–Focused Security Analyst, you’ll work closely with our global community of ethical hackers, helping identify, validate, and escalate real-world vulnerabilities — ensuring organizations stay ahead of evolving cyber threats. Your Role Review, validate, and triage vulnerability reports submitted by bug bounty hunters. Assess the impact and severity of findings, including CVSS scoring. Collaborate directly with ethical hackers to reproduce and understand vulnerabilities. Provide clear, actionable remediation guidance to clients. Perform targeted penetration testing to support and verify bug bounty findings. Identify duplicate, false positive, and low-quality submissions efficiently. Contribute to improving b...

    $599 Average bid
    $599 Avg Bid
    3 bids

    I want to run a small-scale proof of concept—no more than five endpoints (Windows, Mac laptops, windows server and mobile device iPhone and Android) —to show how Microsoft Defender with VPN and Intune can secure and manage various devices. On the Defender side: real-time threat protection, vulnerability management dashboards, and endpoint detection and enrollment. Enable web protection using Microsoft defender VPN to encrypt all Internet traffic from and to device Current setup: Entra ID setup and sync with on-premise AD accounts These activities are done prod systems so credentials cannot be shared, all the work must be done using screen sharing tools like anydesk, teamviewer, rustdesk or similar (only screen sharing)

    $190 Average bid
    $190 Avg Bid
    16 bids
    Remove Google Malware Warning
    6 days left
    Verified

    My corporate site has just been labelled “dangerous” by Google with a specific malware warning, so customers are now greeted with a red-screen block. I need someone who has hands-on experience cleaning infected sites and getting that warning lifted fast. You will be expected to: • Identify every malicious script, file or database entry • Clean or replace the affected code without breaking any front-end or back-end functionality • Secure the server so the infection does not return (harden CMS, update plugins, patch vulnerabilities, tighten permissions, etc.) • Submit a successful reconsideration request in Google Search Console and show the site back in “No issues detected” status I will give you full hosting and Search Console access as ...

    $163 Average bid
    $163 Avg Bid
    173 bids

    More details: Which specific areas do you need mentorship in? Configuration issues, Security policies, Traffic management What kind of configuration issues are you facing? This question was skipped by the user Which specific security policies do you need help with? This question was skipped by the user

    $108 Average bid
    $108 Avg Bid
    6 bids

    We are a startup working on a highly confidential and private internal project. Due to the sensitive nature of this initiative, we require a highly experienced Cybersecurity Specialist with strong expertise in advanced security testing and simulation techniques. This is not a basic vulnerability scanning or standard assessment role. We need an expert capable of performing comprehensive, advanced-level security testing against robust environments while maintaining complete confidentiality. Project Duration: 2 to 3 months (possible extension based on project needs) Compensation: ₹3,00,000 per month (premium budget for the right expert with proven advanced skills) Key Requirements: 5+ years of hands-on experience in advanced cybersecurity testing and security operations Must hold advance...

    $2393 Average bid
    $2393 Avg Bid
    4 bids

    I’m looking for an experienced ethical hacker who can also roll up their sleeves and work directly on the codebase. Your first priority will be to probe our existing applications and utilities for security weaknesses, then patch or refactor the vulnerable components yourself. You will work from user stories and specs that I provide, translating them into secure, efficient software. Day-to-day you’ll be analysing requirements, recommending upgrades, collaborating with the rest of the dev team, and documenting everything—from flowcharts and user guides to the exact remediation steps you take. Routine maintenance and performance tuning are part of the remit as well. A solid command of Java and Python is essential, and you should feel at home in relational databases lik...

    $578 Average bid
    $578 Avg Bid
    98 bids

    أبحث عن مهندس أمن شبكات محترف (Senior) لديه خبرة عملية قوية، ليقدم تدريب فردي (1-on-1) عن بُعد عبر Zoom، بحيث يرافقني خطوة بخطوة في سيناريوهات واقعية على مستوى Enterprise، حتى أصل إلى مستوى احترافي في Palo Alto (مستوى PCNSE)، مع بناء أساس قوي في Routing بمستوى CCNP. مستواي الحالي CCNA مع خبرة عملية في الـ Firewall، لذلك لن نركز على الأساسيات النظرية، بل سنبدأ مباشرة بالتطبيق العملي. سيتم تنفيذ جميع الأعمال داخل بيئة EVE-NG، حيث نقوم ببناء Lab متكامل وتطويره تدريجيًا، بدءًا من تصميم بسيط (HQ / Branch / ISP)، وصولاً إلى بيئة Production كاملة تشمل Firewalls، Routing باستخدام BGP، VPN بأنواعه (IPSec و SSL)، بالإضافة إلى سيناريوهات Prisma Access. المحاور الرئيسية: إعدادات Palo Alto المتقدمة (Policies, NAT, Threat Prevention, Log Analysis) مهارات Troubleshooting بشكل متقدم، خصوصًا تحليل Pac...

    $543 Average bid
    $543 Avg Bid
    11 bids

    My personal profile was taken over: I can no longer log in, profile details were altered, the interface language switched, and friends have seen suspicious activity coming from the account. I exhausted Facebook’s self-service recovery steps and still have not reached a human at Meta, so this is my last resort. I need someone who truly understands Facebook’s security workflows, identity-verification channels, and escalation paths. Your mission is to pursue every legitimate option to restore my access. If that proves impossible, I expect a clear explanation of why, backed by evidence of each avenue you tried. Deliverables • Full restoration of the account, or • A concise report detailing all steps taken, Meta responses, and the definitive reason recovery fai...

    $187 Average bid
    $187 Avg Bid
    8 bids

    I need an experienced security specialist to bring my Microsoft 365 Business Premium environment (fewer than ten users) into full alignment with ISO 27001. The key areas I'm looking to cover are: 1 Clear Desk & Clear Screen Policy 2 Acceptable Use Of IT Assest Policy 3 Procedure Of User Access Management 4 Procudure Of Third Party Security 5 Vulnerability Management Process 6 Password Policy 7 Management Review Process 8 Mobile Usage & Electronic Media Policy 9 Teleworking Policy 10 Archival, Retention and Disposal Policy 11 Data Protection Policy 12 Information Continuity and Application Security Measure 13 System Configuration Standard IT Procudure Documents 1 Approved Software List 2 Asset Inventory 3 Deploying Anti Virus for Desktop 4 Workstation End ...

    $271 Average bid
    $271 Avg Bid
    24 bids

    I’m looking for a professional Network Security engineer (not just a trainer) to provide 1-on-1 coaching with a strong focus on real-world, hands-on experience. My goal is to reach an advanced level in Network Security, with a primary focus on Palo Alto (PCNSE level), supported by solid CCNP-level networking knowledge. My current level is intermediate (CCNA + firewall experience), and I’m not looking for basic theory. I want to strengthen my practical skills, especially in troubleshooting and real enterprise scenarios. The training must be hands-on using EVE-NG, building a full topology that grows over time (HQ, Branch, ISP, Firewall, VPN, etc.). Key focus areas: - Palo Alto advanced configuration (Policies, NAT, VPN, Threat Prevention, Logs) - Troubleshooting (this is crit...

    $1419 Average bid
    $1419 Avg Bid
    11 bids

    I need an experienced security specialist to carry out a thorough review of our bank system’s defences, with the spotlight on the core database and the overall security architecture that surrounds it. This is not a simple camera-or-alarm health check; instead, I want the underlying structure, data flows, and access logic examined for weaknesses that could compromise customer information or interrupt critical services. Scope of work • Map the current database design, supporting servers, and connected services. • Perform vulnerability assessments and penetration tests against these elements, documenting every finding with clear evidence. • Evaluate encryption, key management, privileged-user policies, and change-management procedures to be sure they align with m...

    $1287 Average bid
    $1287 Avg Bid
    11 bids

    I’m looking for an experienced ethical hacker or cybersecurity professional who can teach me the fundamentals and practical skills. Topics I want to cover: • Basics of cybersecurity & ethical hacking • How VPNs work (proper usage, limitations—not illegal use) • Online privacy & digital footprint protection • Network security fundamentals • OSINT (open-source intelligence) basics • Social media security & account protection • Understanding how attacks happen (phishing, etc.) and how to defend against them I prefer: • 1-on-1 sessions (Zoom/Google Meet) • Practical demonstrations + real-world examples • Step-by-step learning plan Goal: • Learn cybersecurity for personal knowledge and protection Pleas...

    $34 / hr Average bid
    $34 / hr Avg Bid
    21 bids

    I need a an ethical hacker for pen testing and cyber security issues.

    $200 Average bid
    $200 Avg Bid
    45 bids

    I need a thorough code review of my full-stack React application. The code has been generated with Lovable and Claude Code, and reviewed by Sonar. The review should focus on: - Code Efficiency: Optimize performance and reduce complexity. - Security Vulnerabilities: Identify and mitigate potential security risks. - Coding Standards: Ensure adherence to industry best practices and coding standards. Ideal Skills and Experience: - Proficiency in React and full-stack development - Strong background in code review and optimization - Expertise in security best practices for web applications - Familiarity with industry coding standards and best practices Please provide examples of similar work done and your approach to this project.

    $3675 Average bid
    $3675 Avg Bid
    160 bids

    I run an e-commerce site and need a specialist to connect the domain to Cloudflare, tune it for best practice security, and make sure the key response headers are in place. Here is what I’m after: • End-to-end Cloudflare configuration on my primary domain, including DNS records moved or verified inside the Cloudflare dashboard and the site fully proxied behind their network. • An active, valid SSL/TLS chain so every page loads via HTTPS without mixed-content warnings. • Implementation of modern security headers—at minimum Content-Security-Policy, Strict-Transport-Security, and X-Frame-Options—plus any others you recommend for an online store. • A quick performance sanity check (caching rules, Brotli, image optimization, etc.) so I’m ge...

    $25 Average bid
    $25 Avg Bid
    25 bids
    Remove Fake Browser Malware
    1 day left
    Verified

    I’m dealing with an unwanted, fake browser that has embedded itself in my Windows machine and keeps hijacking my default settings. There is no antivirus installed at the moment, so I need a clean-up plan that relies on portable or web-downloadable tools (for example, Malwarebytes, Windows Defender Offline, AdwCleaner, or any reputable removal utility you recommend). The job is urgent—I’d like the system back to normal as soon as possible. Once the rogue software is gone, please restore my default browser settings and confirm that no residual processes, registry entries, or scheduled tasks remain. Deliverables • Complete removal of the fake browser and any associated malware • Verification that all browser and system settings are back to their legitimate st...

    $20 Average bid
    $20 Avg Bid
    30 bids

    I'm seeking a skilled blockchain developer to assist in the development of a utility governance token project on the Polygon network. The project is currently in the development phase and requires expertise in the following areas: Smart Contract Coding: Develop robust and secure smart contracts for the token. Token Distribution Mechanism: Design and implement a fair and efficient token distribution mechanism. Security Audit: Conduct a comprehensive security audit to identify and mitigate potential vulnerabilities. Ideal Skills and Experience: - Proficiency in Solidity and experience with the Polygon network - Strong background in blockchain security and smart contract audits - Experience in designing tokenomics and distribution models Your expertise will be crucial in ensuring a ...

    $924 Average bid
    $924 Avg Bid
    25 bids

    I'm seeking a skilled blockchain developer to assist in the development of a utility governance token project on the Polygon network. The project is currently in the development phase and requires expertise in the following areas: Smart Contract Coding: Develop robust and secure smart contracts for the token. Token Distribution Mechanism: Design and implement a fair and efficient token distribution mechanism. Security Audit: Conduct a comprehensive security audit to identify and mitigate potential vulnerabilities. Ideal Skills and Experience: - Proficiency in Solidity and experience with the Polygon network - Strong background in blockchain security and smart contract audits - Experience in designing tokenomics and distribution models Your expertise will be crucial in ensuring a ...

    $874 Average bid
    $874 Avg Bid
    18 bids

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