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Skills

  • Data Security
  • Ethical Hacking
  • Malware Removal
  • Security Testing
  • Virus Removal
  • Penetration Testing
  • Encryption
  • Antivirus
  • App Development
  • Communication Skills
  • Data Management
  • Digital Signature
  • Firewalls
  • User Authentication
  • Checkpoint

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Services

  • Web Application Penetration Testing

    $50/hr Starting at $500 Ongoing

    Dedicated Resource

    Reconnaissance: Subdomain enumeration, directory discovery, public information gathering. Mapping & Analysis: Document application flows, endpoints, parameters, and authentication flows. Automated Scanning:...

    Bug FindingBug ReportingCyber Risk ManagementData SecurityDigital Signature

  • Mobile App Penetration Testing

    $80/hr Starting at $900 Ongoing

    Dedicated Resource

    Worried about security gaps in your Android or iOS app? Gain peace of mind with a professional mobile app penetration test! Using advanced methodologies, I simulate real-world attacks to uncover vulnerabilities...

    Android DevelopmentAntivirusApp DevelopmentData ManagementData Security

  • Network Penetration Testing

    $70/hr Starting at $1K Ongoing

    Dedicated Resource

    I will perform a thorough Network Penetration Test (external and/or internal) to discover misconfigurations, exposed services, weak credentials, and attack paths an adversary could use to breach your...

    AntivirusCheckpointData SecurityDigital SignatureEncryption

  • API Security Testing

    $50/hr Starting at $500 Ongoing

    Dedicated Resource

    Gig Description Secure your APIs from vulnerabilities before they become a threat. I provide thorough API security testing services to identify weaknesses and potential attack vectors in your API endpoints,...

    API DevelopmentData ManagementData SecurityEncryptionEthical Hacking

  • Server Hardening & Cloud Security Setup

    $70/hr Starting at $900 Ongoing

    Dedicated Resource

    Protect your servers and cloud environments from evolving cyber threats with expert server hardening and cloud security setup. I specialize in reducing your attack surface by applying best practices,...

    AntivirusCheckpointCloud ComputingData SecurityDigital Signature

  • Professional Website Development |

    $60/hr Starting at $600 Ongoing

    Dedicated Resource

    Gig Description Looking to build a stunning, user-friendly, and high-performing website that drives results? With years of experience in web development, I create custom websites tailored to your business...

    Back End DevelopmentCommunication SkillsCommunications TechnologyContent Management SystemsContent Writing

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About

Cybersecurity Expert | Ethical Hacker | Web & Network Penetration Tester

Hi! I'm Karan Sain, a passionate and driven Cybersecurity Enthusiast and Network Security Specialist with hands-on experience in penetration testing, vulnerability assessment, secure network design, web application security, and ethical hacking.

💼 I help organizations identify and fix security vulnerabilities to keep their systems secure and resilient from cyber threats.
🛡️ Whether it's a web app pentest, network hardening, or security tool deployment, I believe in delivering high-quality, data-driven results with full transparency.
🔥 Always learning, always curious — I stay up to date with the latest OWASP, MITRE ATT&CK, CVEs, and red teaming methodologies.

✅ What I Can Help You With:

Web, Mobile & API Penetration Testing

Network Security & Vulnerability Assessment

Malware Analysis Basics

Secure Server & Firewall Setup

Security Research & Report Writing

Let's connect and collaborate to make the internet a safer place!

Work Terms

Hours of Operation:
I am available Monday to Saturday, 9 AM – 11 PM (IST). I am also flexible and can adjust to your timezone upon request.

Communication Style:

Preferred modes: Upwork messages, Email, WhatsApp, Telegram

I believe in clear, concise, and timely communication. I provide regular project updates and maintain complete transparency.

Payment Terms:

For hourly projects: Weekly billing using Upwork tracker (for Upwork)

For fixed-price offers:

50% advance payment to begin

Milestones created and released phase-wise

I offer unlimited revisions until client satisfaction.

No delivery = no payment. Your satisfaction is my priority.

Revisions & Support:

Revisions available until the agreed objectives are met

Free support for 15 days after project delivery (for bug fixes and clarifications)

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