I am a Dynamic, Dedicated, Passionate and Quickly Adaptable Freelancer with Technological innovations. I am a 🏅Upwork-Skill-Certified Freelancer with ✅100% JSS ✅ 70%+ Long-Term Clients ✅ 80%+ Clients Recommendation ✅ 90+ Active and Completed Jobs with Positive Feedback🏅Architect Certified on Sophos, Fortinet Firewalls and Endpoints Managements ✅ Others Certification on Network and Security✅ Strong and long Experiences on Fortinet, Sophos, SonicWall, Palo-Alto, PFSense Infrastructures Deployments, Migration and Managements✅ Any kinds of Wireless and Voice Solution Deployments✅ Network, System Security & Compliance Managements✅ Strong Experience on Routing & Switching🏦 Long-Experience with MSP, Corporate and Solution/Service-Provider Sectors. 🏦 Already worked with 90+ clients from different regions such as Asia, Africa, US, Europe etc.
🎖️Certifications (Completed & Enrolled)
• Upwork Skill Certification - Customer Service.
• Certified Architect by Sophos and Fortinet.
🏅 Sophos Certifications:
• Sophos-Firewall v19.5-Engineer.
• Sophos Firewall v19.5-Architect.
• Sophos Firewall v19.5 to v20.0 Certified Architect Delta (AU80).
• Sophos Firewall v19.5 to v20.0 Certified Engineer Delta (EU80).
• Sophos Firewall v20.0 to v21.0 Certified Architect Delta (AU80).
• Sophos Central Endpoint and Server v4.0-Engineer.
• Central Endpoint and Server v4.0-Architect.
• Sophos Central Endpoint v4.0 to v5.0 Architect Delta (AU15).
• Sophos Central Engineer Delta v4.0 to v5.0 (EU15).
🏅 Fortinet Certifications:
• NSE-7 (Network Security Architect) –NSE-ID:- 0Qjbf0qGSd
• NSE-4 (Network Security Professional) – NSE-ID:- GThFxY1viO
• NSE-5 (Network Security Analyst) on FortiAnalyzer- NSE-ID: - 8gIRCniwPN.
• NSE-1 (Network Security Associate) By Fortinet License Number: OYBF7cetpL.
• NSE-2 (Network Security Associate) By Fortinet License Number: FTsFjlmHck.
🏅 Other Certification:
• CNSS (Certified Network Security Specialist) By ICSI, UK License Number: 18427811
• Cisco Certified Network Associate (Routing & Switching) Cisco-ID: - CSCO13303817
Here, I would like to share my Working experiences, fields of expertise and much more-
✅ I have 9 years plus hands-on experiences on Network, System, Security administration, Deployment and Migrations on different Infrastructures along with direct involvements/cooperation on different known issues from Deployment stage to end-user’s support.
✅ Fields of Specialization:
1. Because of having 9 years plus exclusive experiences on different Fortinet, Sophos, SonicWall, PFSense, Palo-Alto and other Infrastructures Deployments and Administration I can work with the Complete Design, Deployments, Migrations and Integrations on these Different types of Infrastructures such as-
• Fortigate, Forti-APs, Forti-Switches, FortiVoice-Enterprise, Forti-Manager, Forti-EMS,FortiAnalyzer, FortiAuthenticator, FortiNAC, Fortinet Security Fabric Devices, FortiSandbox, FortiToken/Mobile/Service.
• Sophos Infrastructures Managements such Firewalls, Endpoints, Switches, APs etc.
• SonicWALL Infrastructures Managements such as Firewalls, NSM, Capture-Clients Endpoints etc.
• Palo-Alto, Barracuda, PfSense, Cisco-Firepower, Firepower-Thread Defence and FMC and Others Firewalls Managements.
• Migration To/From any of these above Infrastructures.
3. Long experiences on the Network and System Administration on these Infrastructures-
• Routing & Switching on Cisco, Mikrotik, Juniper, HP, Dell, Aruba etc.
• Wireless Implementation on Cisco, Aruba, Ruckus, 4Ipnet, Unifi/Ubiquiti, Forti-AP, Cambium, Altai, TP-Link-Omada, Teltonika etc.
• Mail-Server Administration on Office365, G-Suite by Google, Zimbra etc.
• Windows Server Managements.
• Virtualization & Datacentre Managements on VMware, ESXi, vSphere or VCenter, Hyper-V, Synology-NAS/SAN and Others.
• Voice Solution implementation on renowned Voice Solution Providers such as FortiVoice Enterprise, Grandstream, 3cX, Synway, Yeastar-PBX, FreePBX etc.
• Endpoint Solution Deployments on TrendMicro, Sophos Endpoint Protection, FortiClient by Forti-EMS (Endpoint Management Server), ESET etc.
• Complete Video Conferencing Solution on Dahua, Polycom etc.
• Surveillance, Attendance reader solution on Hikvision, Dahua, ZKTecho, Handuri etc.
4. I am a quick and dynamic learner. I can adjust myself with the Technological innovation within a very short amount of time.
5. I am a technical person with a Never Give-Up character.
I have multiples valuable feedback with great reviews on Upwork. You can also have a look at that.
If you have any further query on me just send "Hi" in Upwork.
VPN
Network Security
Firewall
Fortinet
Network Administration
FortiGate Firewall
Security Infrastructure
Palo Alto Firewalls
Wireless LAN Controller
Security Management
Sophos Sophos UTM
VoIP PBX
System Administration
PfSense
SonicWall
Md N.
Comilla, Bangladesh
$12/hr
4.9
107 jobs
✅Malware removal from ⦿ Wordpress ⦿ Shopify ⦿ PrestaShop ⦿ Wix ⦿ Magento ⦿ Squarespace ⦿ PHP
✅WordPress Design: ⦿ Wordpress Expert ⦿ Wordpress Designer ⦿ Wordpress Elementor Pro
⦿ Website Optimizaton ⦿ CMS ⦿ Shopify ⦿ Customer Wordpress Website ⦿ Ecommerce ⦿ Divi Theme ⦿ Premium Plugins
✅Fix Google Ads Disapproved for Malicious Software ✅Penetration testing and Vulnerability Assessment. ✅Cloudflare Setup and DDoS Security. ✅ Wordpress Migration
I'm a full-time freelancer as a Cyber Security Specialist, Malware Analyst, and Penetration Tester. I can remove malware, delete viruses, do penetration tests, do vulnerability assessments, and remove malicious (Plugins, Themes, and Software). remove the Google warning from your website.
I've 5 years of experience as a website security specialist in Ignite tech solutions. Also, I'm a freelancer on Fiverr and Upwork. I've got a level two badge on Fiverr.
✅Service I will provide:
0) Penetration testing and Vulnerability Assessment.
1) WordPress Malware Removal and Security.
2) Shopify Malware Removal and Security.
3) Cloudflare Setup and DDoS Security.
4) Website Backup and Migration from old host/server/domain to new host/server/domain.
5) Google Ads Disapproved for malicious software.
✅Wordpress service:
⦿Remove Malware.
⦿Penetration Testing / Vulnerability Testing
⦿Wordpress Malware removal.
⦿Website Security.
⦿Clean Server / Server Maintenence / cPanel / WHM Panel
⦿Delete Virus / Virus Removal
⦿Remove Google blacklist/ Red screen.
⦿Remove Japanese or Chinese search results.
⦿Security patch installation
⦿Remove malware
⦿Fix the hosting site suspended
⦿Delete junk or virus script
⦿Add SSL Certificate / Setup Cloudflare
⦿Database error / Remove malware from the database
⦿Fix emails problem / Emails not coming
⦿Spam emails coming / Unwanted emails coming
⦿Critical and Fatal Error
⦿Remove the PHP backdoor
⦿Blacklist Removal, McAfee blacklist
⦿WordPress version update
⦿Install Cloudflare SSL
⦿Fix Login Issue / Broken dashboard
⦿Remove website redirect URL / Fix redirecting issues
⦿Internal 404 or 505 Error
⦿Remove the PHP shell
⦿Unwanted / Bulk email coming
⦿White/Empty Screen
⦿Error Establishing Database Connection
⦿Theme/Plugin Broken
⦿Improve website security
⦿Corrupt .htaccess file
⦿Solve PHP memory limit
⦿Core files issues
⦿Upload size problem
⦿Forgot Username/password
✅Backup and Migration Service:
I will backup WordPress sites, duplicate, clone, copy, host migration, WordPress migration, Transfer, move websites, and domain migration any WordPress website for personal and business.
⦿Database Backup and Transfer
⦿Change primary addon domain/domain/subdomain
⦿Move WP from root domain/subdomain/addon domain to main
⦿Old host to another new host
⦿Clone and duplicate the WordPress website
⦿Update WordPress version/theme/plugin
✅Penetration Test and Vulnerability Service:
I will perform penetration and vulnerability tests with the VAPT report
⦿According to a security report, about 90% of websites are vulnerable to malicious attacks.
⦿A website is an essential part of your Business. The thing is how secure is your website?
⦿I will perform an advanced deep scan and penetration testing on your web application with a professional report which includes all vulnerabilities.
⦿Let me help you in making your website secure against hackers:
⦿Vulnerability Checklist:
⦿ Web attack vulnerabilities.[Input Validation, Code Execution, Bypass Authentication, SQL Injection, CSRF, LFI, Cross-site Scripting, Uploader Issues, Remote Code Execution, Buffer Overflow, Session Hijacking]
⦿ Information Gathering [Server Info, Open Port]
⦿ Authorization Testing [HTTP Header]
⦿ Data Validation Testing [XSS]
⦿ Denial of Service Testing [DDos Test]
⦿ Security Testing
✅Cloudflare service:
⦿Fix A Record, CNAME Record
⦿Fix NS, MX record
⦿Cloudflare setup
⦿Email Routing
⦿Configure Emails
⦿Add SSL
⦿Cloudflare SSL
⦿Cloudflare error fix
⦿Free SSL
⦿DDOS protection from Hackers
⦿setup DNS
⦿Website Security
⦿Enable green padlock
⦿Improve Website speed
⦿Setup firewall
Errors I will fix:
Mail Delivery Issue
500 internal server error
502 bad gateway or error 504 gateway timeout
503 service is temporarily unavailable
520: web server returns an unknown error
521 web server is down
522: connection timed out
524: a timeout occurred
525: SSL handshake failed
526: invalid SSL certificate
Cloudflare Benefits:
⦿Minification
⦿HTTP/2 Protocol
⦿DNS Security
⦿Cloud WAF
⦿Image Optimization
⦿Browser Caching
⦿WebSockets
⦿Load Balancing
⦿Optimized Network Routing
✅I can work with any CMS like:
⦿Magento, OpenCart, Drupal, Joomla, Prestashop, WordPress, SHOPIFY, LARAVEL, SQUARESPACE, WIX, WOOCOMMERCE, BigCommerce, Blogger, Hubspot CMS, Typo3, Weebly, Webflow, CMS Hub.
✅Why Me:
⦿I will provide a Professional Report
⦿Give you technical support
⦿Quality Work
Malware Removal
WordPress Website Design
Information Security
Penetration Testing
Vulnerability Assessment
Network Security
CMS Development
WordPress Malware Removal
Virus Removal
Cloudflare
SSL
Ethical Hacking
cPanel
WordPress Bug Fix
WordPress Security
Md Abdul Kayum T.
Maulavi Bazar, Bangladesh
$30/hr
5.0
107 jobs
Hello,
I’m a Professional Social Media Account Recovery, Troubleshooting & Website Security Specialist.
I help individuals and businesses recover restricted, suspended, compromised, and inaccessible accounts across major platforms, including LinkedIn, Facebook, Instagram, TikTok, X (Twitter), YouTube, and Google.
With hands-on experience in account recovery and platform troubleshooting, I focus on providing secure, effective, and policy-compliant solutions that help clients regain access and strengthen account security.
🔹 Account Recovery Services
LinkedIn Account Recovery:
Restricted or suspended LinkedIn account? Get support with access restoration and appeal guidance. LinkedIn profile restriction resolution
LinkedIn Company Page Recovery:
Lost access to your Company Page? Receive assistance with admin access restoration.
Facebook Account Recovery:
Locked out of Facebook, hacked, or facing 2FA issues? Resolve account access and recovery challenges.
Instagram Account Recovery:
Facing 2FA issues? Get support with recovery and verification requirements.
TikTok Account Recovery:
Can't access your TikTok account? Navigate the recovery and appeal process with confidence.
X | Twitter Account Recovery:
Locked or suspended X account? Restore access through proper recovery procedures.
YouTube Channel Recovery:
Lost access to your YouTube channel? Receive guidance for channel access recovery and ownership verification.
Google Account Recovery:
Experiencing Google account access issues? Receive guidance for account restoration.
Account Security Support:
Looking to strengthen account protection? Improve security and reduce future risks.
Verification & Appeal Support:
Need help with verification or appeals? Get expert guidance throughout the process.
Business Manager Support:
Locked out of your Business Manager? Receive assistance with access restoration and troubleshooting.
Ad Account Reinstatement:
Disabled Meta ad account? Get support with appeals and reinstatement guidance.
Two-Factor Authentication (2FA) Issues:
Having trouble with 2FA login? Resolve authentication and account access challenges.
Verification Support (Blue Badge):
Need help with Facebook Page or profile verification? Receive guidance throughout the verification process.
🔹 Website Security Services
✅ Website Malware Removal
✅ Website Security Hardening
✅ Malware Cleanup & Protection
✅ Website Recovery Support
If you're facing account access, recovery, verification, or security-related issues, feel free to reach out. I’ll review your situation and provide the most suitable guidance based on your case.
Thank you.
Ethical Hacking
Internet Security
Data Recovery
Social Media Account Integration
Network Security
LinkedIn
Information Security
Company LinkedIn Profile
Facebook Business Page
LinkedIn Development
LinkedIn Plugin
Troubleshooting
Malware Removal
WordPress Malware Removal
Technical Support
Cybersecurity Management
Social Media Account Setup
Facebook Page
M R.
Dhaka, Bangladesh
$10/hr
5.0
9 jobs
I am dedicated, focused and committed System & Security Analyst with strong experience in securing IT environments, hardening systems, and ensuring smooth, reliable operations across on-prem and virtualized infrastructures. I help businesses strengthen their security posture, optimize performance, and solve complex system issues quickly and professionally.
I offer:
✅ Vulnerability Assessment & Remediation
✅ System and network security
✅ IT technical support
✅ System & network administration and troubleshooting
✅ Application functional and security testing.
✅ Infrastructure Setup & Troubleshooting
✅ Cybersecurity Monitoring & Incident Response
✅ Policy Development & Security Awareness
I help businesses build user trust by ensuring strong security and smooth, bug-free functionality across all devices and environments.
Network Analysis
Vulnerability Assessment
Penetration Testing
Cybersecurity Management
Metasploit
Wireshark
Antivirus & Security Software
Application Security
System Administration
Troubleshooting
Manual Testing
Functional Testing
Digital Forensics
Security Operation Center
GM Salman A M.
Satkhira, Bangladesh
$30/hr
5.0
56 jobs
🚨 If your application, SaaS platform, or cloud environment has never undergone a professional security assessment, you may have unknown vulnerabilities that attackers can exploit.
I’m a Certified Penetration Tester and Ethical Hacker providing Vulnerability Assessment and Penetration testing (VAPT) services for web applications, APIs, cloud infrastructure, mobile apps, SaaS platforms, and network environments. My goal is not just to find vulnerabilities — but to help you understand real security risks and fix them effectively.
I perform manual penetration testing supported by professional security tools to identify exploitable weaknesses such as authentication flaws, privilege escalation paths, injection vulnerabilities, and business logic issues.
You will receive a clear and actionable security report that helps developers resolve issues and allows management to understand the real business impact.
🎯 My Services
- Vulnerability Assessment & Penetration Testing (VAPT)
- Web Application Penetration Testing (OWASP Top 10)
- API Penetration Testing (REST, GraphQL, authentication flaws, IDOR, injection)
- Cloud Infrastructure Security (AWS, Azure — misconfigurations, IAM, exposed services)
- Network Penetration Testing (internal & external)
- Mobile Application Security (Android & iOS)
- SaaS Platform Security & Penetration Testing (multi-tenant logic, RBAC, privilege escalation)
- CMS Security (WordPress, Laravel, custom apps)
- Retesting after remediation
📋 What You Will Receive
A clear, structured security report designed for both technical teams and business stakeholders, including:
• Executive summary for management and decision-makers
• Detailed vulnerability findings with severity ratings
• CVSS scoring and risk prioritization
• Proof-of-concept evidence (screenshots, request/response captures)
• Business impact explanation for each issue
• Step-by-step remediation guidance for developers
• Retesting validation after fixes are applied
• Reporting that can support ISO 27001 and SOC 2 compliance preparation
🏆 Certifications
- Certified Ethical Hacker Practical — EC-Council
- eLearnSecurity Junior Penetration Tester (eJPT) — INE
- Certified API Penetration Tester — APISec University
- IBM Cybersecurity Analyst
- Cisco Verified Ethical Hacker
- ISO 27001:2022 Lead Auditor
🛠️ Tools I work with
Burp Suite Pro, OWASP ZAP, Nmap, Nessus, Metasploit, MobSF, Wireshark, Postman, and custom Python/Bash scripts and so on.
Whether you're preparing for a security review, compliance audit, or investor due diligence, I can help you understand your attack surface and security risks.
📩 Send me your scope or asset list and I’ll help you determine the best testing approach.
Penetration Testing
Vulnerability Assessment
Malware Removal
Information Security
Application Security
Security Assessment & Testing
Cybersecurity Management
Web App Penetration Testing
WordPress Malware Removal
Website Security
Ethical Hacking
Web Application Security
Network Penetration Testing
System Administration
OWASP
Sajeeb S.
Sylhet, Bangladesh
$20/hr
4.9
66 jobs
I have been working as a Cybersecurity Specialist, Penetration Tester, OSINT, Private & Digital Forensics Investigator for the last 5 years & I’ve worked with almost 70+ Clients from 25 Countries. I’ve completed 200+ projects with them successfully. I am a skilled freelance in Penetration Testing, Vulnerability Assessments, Open-Source Intelligence (OSINT Investigation), Company Background Check, Social Media Investigation, Private Investigation, WordPress Malware Removal & Digital Forensics as well.
Over the years I have conducted many investigations into background checks, scams, extortion, theft, and all sorts of other forms of cybercrime. I can call myself an expert in this field.
I am a specialist in all sorts of digital investigations, such as finding people who do not want to be found, you can also contact me for investigations into people or companies if they are legit or not.
What I Work On:
✅ Penetration Testing and Vulnerability Assessment
• Web penetration testing
• Android Penetration Testing
• Network Penetration Testing
• Vulnerability assessments
• Software & Security Testing
✅ OSINT Investigation
• Background Checking
• Social Media Investigation
• Personal Profile Analysis
• Target's Photos, Videos, Previous Records Analysis
• Location Tracking
• Business and Assets Information
• IP Investigation and Tracking
• Dark Web Investigation & Monitoring
• Any Private Investigation
✅ Digital Forensic
• Criminal and arrest record
• Target's Photos, Videos, Previous Records Forensic
• Data Forensic and Recovery
• Phishing Investigations
• Cyber Forensic of all about cybercrimes
• Malware and Keylogger Analysis
✅ WordPress Malware Removal
• Remove Malware from WordPress Website
• Fix WordPress errors and issues
• Fix Hacked Website
• WordPress website Migration, Backup & clone
• Fix SSL Certification Issue
If you choose to work with me, you will get:
▶ Maximum effort to resolve your case
▶ A discreet and professional investigation
▶ A basic report with all the findings
▶ All the care you need, even after the job is done.
My Background:
🕵️♂ Certified Ethical Hacker(CEH) from EC-Council
🕵️♂ Certified Junior Penetration Tester(eJPT) from INE Security
🕵️♂ Certified Google Cybersecurity Professional
🕵️♂ Certified API Penetration Tester
🕵️♂ Registered OSINT Analyst
🕵️♂ Certified OSINT Expert
🕵️♂ Certified Digital Forensic Investigator
🕵️♂ Student of Computer Science and Engineering
If you need any services don’t hesitate to reach out to me. I am always ready to give you the best services.
I look forward to hearing from you. Thanks!
-Sajeeb
Cybersecurity Management
Penetration Testing
Vulnerability Assessment
WordPress Security
WordPress Malware Removal
Open Source
Company Research
Market Research
Investigative Reporting
Digital Forensics
Ethical Hacking
Legal Research
Python
Cybersecurity Monitoring
NIST Cybersecurity Framework
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