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Based on 463 client reviews
John M.

Bengaluru, India

$34/hr
5.0
47 jobs

๐Ÿ”ข As an Upwork Top 1% Expert Vetted ๐Ÿ‘‘ Certified Ethical Hacker and an Experienced Penetration Tester with 10+ years of experience Penetration Testing Web SaaS and Mobile based applications and networks, every flaw tells a story; I write the ending and specialize in helping my clients strengthen their cybersecurity defenses. An average Cybersecurity Incident in your business can you cost you anywhere between $120,000+ to $1.24+ million and even a 10%+ reduction in risk can save your business nearly $124,000+ and hiring a full time in-house team can cost you $100,000+ per employee per year. That is why you need an expert like me to protect your business and reduce your business risk. What makes me stand out from other freelancers is the fact that I am also a Cybersecurity Architect, capable of architecting solutions to enhance the security of your organisation and preserving the security and integrity of your data. I have always been passionate about solving technical problems for my clients through Penetration Testing and I don't rest till I get to the root of the problem and solve it. What I can offer? I can help you secure your business by providing the following services: โœ… Web Application Penetration Testing, โœ… Secure Source Code Analysis, โœ… Mobile Application Penetration Testing, โœ… Network Penetration Testing, โœ… Secure Architecture Review, โœ… API Security Testing, ย ย  โœ… Secure Configuration Review, โœ… Secure Code Review, โœ… CASA Assessment, โœ… Red Team Assessment, โœ… Threat Modelling, โœ… Phishing Simulations & Assessment. Why Choose Me? ๐Ÿง‘๐Ÿผโ€๐Ÿ’ผ Client-Centric Approach: Your security is my top priority. I work closely with your team to understand your objectives and deliver tailored services that align with your business goals. Trust and transparency are the cornerstones of my practice, and I am committed to helping you navigate the complex landscape of cybersecurity with confidence and achieve compliance. ๐Ÿ“ Comprehensive Security Assessments: I conduct detailed SOC Type 2 / ISO compliant evaluations to identify vulnerabilities in your network, applications, and infrastructure. โœ‚๏ธ Tailored Solutions: Every organization is unique. I customize my approach to meet your specific security needs and industry standards. ๐ŸŽฌ Actionable Recommendations: Post-assessment, I provide clear, concise, and practical remediation steps to address identified vulnerabilities. ๐Ÿ” Ongoing Support: Cybersecurity is an ongoing process. I offer continuous support and re-assessment to ensure your defenses remain robust against evolving threats ๐ŸŒ Holistic Approach: I don't just patch vulnerabilities; I architect comprehensive security solutions that align with business goals. My focus extends beyond the technical to encompass risk management and organizational resilience. ๐Ÿ—จ๏ธ Collaborative Communicator: I bridge the gap between technical jargon and business language, fostering understanding across teams. Effective communication is key to successful security implementation. ๐Ÿซ Continuous Learning: The threat landscape evolves, and so do I. Whether it's a new attack vector or an emerging technology, count me in. Learning is my superpower. ๐Ÿ™‹โ€โ™‚๏ธ Key Skills: โœ”๏ธ Penetration Testing & Vulnerability Assessment: I thrive on dissecting systems, identifying weaknesses, and recommending robust solutions. Armed with tools like Kali Linux, Metasploit, Nmap, and Wireshark, I delve into web applications, networks, and APIs. But here's the twistโ€”I don't stop at discovery; I offer a free retest after remediation to ensure vulnerabilities stay sealed. โœ”๏ธ Network Security: I've designed and implemented secure network architectures, ensuring data confidentiality, integrity, and availability. Firewalls, intrusion detection systems, and VPNsโ€”my toolkit covers it all. โœ”๏ธ Cloud Security: Proficient in securing cloud environments especially Amazon Web Services (AWS) & Oracle Cloud Infrastructure (OCI). I stress-test cloud deployments ensuring they withstand real-world attacks. โœ”๏ธ Secure Coding Practices: I advocate for secure coding principles using tools like SonarQube and collaborate with development teams to build resilient applications. Prevention beats cure, every time. โ›๏ธTools I Use โ˜‘๏ธ Penetration Testing: Nmap, Metasploit, Burp Suite Professional, Wireshark, SQLmap, Kali Linux โ˜‘๏ธ Programming & Scripting Skills: Python, Bash, PowerShell, JavaScript, Java and C# โ˜‘๏ธ Security Frameworks & Standards: OWASP, NIST, CASA, CIA Triad, PCI-DSS ๐Ÿซฑ๐Ÿฝโ€๐Ÿซฒ๐Ÿฝ Let's Connect: Ready to enhance your business/organization's security? Let's chat! Reach out to me here on Upwork, and let's build a safer digital future together. ๐ŸŸข Press '...' button and then โ€˜Send Messageโ€™ button in the top right-hand corner โœ‰๏ธ ๐Ÿšซ No hacking service - I do not provide any hacking services, and I will not engage in any activities that involve gaining unauthorized access to any accounts, systems, or social media platforms. Requests for such services will be declined.

  • Vulnerability Assessment
  • Penetration Testing
  • Network Penetration Testing
  • Security Testing
  • Security Assessment & Testing
  • Information Security
  • Application Security
  • Web Application Security
  • Network Security
  • System Security
  • Web App Penetration Testing
  • Website Security
  • Black Box Testing
  • OWASP
  • Risk Assessment
Gary R P.

Brooklyn, Ohio

$275/hr
5.0
40 jobs

With our roots in HIPAA consulting for the last 25 years we have served over 1,000 clients. Clients include tech startups, hospitals, physicians, other health providers, insurers, third party administrators, and more. Services include security risk assessments, virtual Privacy/Security Officer, policies and procedures, vulnerability management, HIPAA training, disaster recovery / incident response / business continuity planning, tabletop exercises, and more. Other strengths include SOC 2 and ISO 27001 readiness, NIST CSF and HITRUST. Regulatory compliance strengths include GDPR, EU-US Data Privacy Framework, Virtual Data Protection Officer, 42 CFR Part 2, GxP, FERPA, IDEA, and state privacy regulations. We are Vanta partners.

  • Vulnerability Assessment
  • ISO 27001
  • GDPR
  • Risk Assessment
  • HIPAA
  • Data Privacy
  • Information Security
  • Project Risk Management
  • Information Security Governance
  • PCI
  • Security Analysis
  • Company Policy
Nandy B.

Lehigh County, Pennsylvania

$85/hr
5.0
280 jobs

๐Ÿ—ฝ U.S. and ๐Ÿ Canada -only clients โ˜‘๏ธ Upwork Expert-Vetted ๐ŸŒŸ | 100% Job Success โœ… | 10,000+ hours ๐Ÿ’ป on 200+ projects Hi there! ๐Ÿ‘‹ Iโ€™m an Upwork veteran with over 10,000 hours delivered, 200+ successful projects, and $1M+ earned helping U.S. companies secure and scale their cloud and hybrid environments. โ˜๏ธ I specialize in Azure, Microsoft 365, and security-focused systems โ€” delivering: โ€ข Secure infrastructure using Zero Trust, IaC (Terraform/Bicep), and DevSecOps pipelines โ€ข Incident response, forensics, and breach containment across regulated industries โ€ข Compliance-ready solutions aligned to SOC 2, HIPAA, ISO 27001, and NIST 800-53 As a certified consultant, I work directly with technical teams to deliver secure cloud transformation, implement controls, and respond to threats โ€” fast. I also collaborate with Microsoftโ€™s internal dev teams, giving me early-access insights and practical fixes 3โ€“4 release cycles ahead of public rollout. Why Choose Me? โœ… $1M+ in security projects delivered across healthcare, fintech, crypto, and gov sectors ๐Ÿ” Architected Azure landing zones, GitOps pipelines, and zero trust cloud environments ๐Ÿšจ Led incident response and forensic investigations for Fortune 500 and defense clients ๐Ÿ“Š Built compliance workflows and policy-as-code enforcement for audit success ๐Ÿช™ Secured crypto CI/CD pipelines and smart contract environments with GitHub, Checkov, GHAS ๐Ÿง  Career Highlights: โ–ช Delivered security modernization and audit readiness for global government contractors and Fortune 500 companies โ–ช Led compliance remediation and data protection initiatives across healthcare, fintech, and public sector clients โ–ช Migrated global users to Microsoft 365 with security-first design โ€” Exchange, Purview, Intune, Defender โ–ช Built hybrid identity strategies (Entra ID, ADFS, GoDaddy 365, Azure AD B2C, custom policy support) โ–ช Managed VMware-to-Azure hardening with conditional access, audit enforcement, and security baselines ๐Ÿ”ง Solutions I Deliver: โ€ข Azure Infra Security: Terraform, Bicep, Azure Policy, RBAC, Defender for Cloud โ€ข DevSecOps: GitHub Actions, tfsec, Checkov, Trivy, GHAS, pipeline reviews โ€ข Microsoft 365 Hardening: Defender, Purview, Compliance Center, Intune, Exchange โ€ข Compliance & Audits: SOC 2, ISO 27001, HIPAA, GDPR, NIST, CIS Benchmarks โ€ข Incident Response & Forensics: Malware analysis, reverse engineering, breach recovery โ€ข Crypto Security: CI/CD for smart contracts, wallet infra hardening, Web3 audits โ€ข Reverse-engineered malware to identify attack vectors and harden systems post-breach โ€ข Hardened Microsoft Exchange Online and Defender for Email in phishing-prone orgs โ€ข Integrated Azure Sentinel analytics with dashboards for cross-cloud visibility ๐Ÿค Retainer & Advisory Support: โ€ข Ongoing guidance for CISOs, security architects, and compliance teams โ€ข Monthly retainers for SOC 2 evidence collection, security tool reviews, and policy automation โ€ข Rapid-response engagements for forensics, malware recovery, and breach root cause analysis ๐Ÿงฐ Platforms & Tools: โ€ข Azure, Microsoft 365, Azure Sentinel, Microsoft Defender (all modules), Intune โ€ข Terraform, Bicep, GitHub, Azure DevOps, GitOps, GHAS โ€ข Splunk, FTK, EnCase, Wireshark, Autopsy, Cisco ASA/Firepower โ€ข Checkov, Trivy, Aqua Security, smart contract security tooling โ€ข Compliance: SOC 2, HIPAA, ISO 27001, CIS, NIST, GDPR ๐Ÿ“… Letโ€™s set up a free 30-minute consultation to explore how I can help you with security transformation, compliance readiness, or urgent recovery โ€” no fluff, just fast, proven results. I bring the calm in chaos โ€” whether you're planning secure growth or cleaning up after a breach, Iโ€™ll steady the course and deliver results. ๐Ÿ“Œ Helped a fintech client pass SOC 2 in under 60 days ๐Ÿ“Œ Responded to ransomware, restored 95% of systems in 48 hours ๐Ÿ“Œ Hardened crypto wallet infra securing $100M+ in assets Thanks again for stopping by. You can invite me to your job post or simply send a message to arrange a quick discovery call โ€” I respond fast, and weโ€™ll keep everything inside Upwork. โ€” Nandy Bo ๐Ÿ—ฃ๏ธโ ๐™„๐™ฉ ๐™๐™–๐™จ ๐™—๐™š๐™š๐™ฃ ๐™– ๐™ฅ๐™ก๐™š๐™–๐™จ๐™ช๐™ง๐™š ๐™ฉ๐™ค ๐™ฌ๐™ค๐™ง๐™  ๐™ฌ๐™ž๐™ฉ๐™ ๐™‰๐™–๐™ฃ๐™™๐™ฎ ๐™™๐™ช๐™ง๐™ž๐™ฃ๐™œ ๐™ฉ๐™๐™š ๐™ฉ๐™ง๐™–๐™ฃ๐™จ๐™ž๐™ฉ๐™ž๐™ค๐™ฃ ๐™ค๐™› ๐˜พ๐™–๐™ก๐™ก๐™˜๐™ค๐™ข. ๐™‰๐™–๐™ฃ๐™™๐™ฎ ๐™ž๐™จ ๐™ซ๐™š๐™ง๐™ฎ ๐™œ๐™š๐™ฃ๐™ช๐™ž๐™ฃ๐™š, ๐™๐™ค๐™ฃ๐™š๐™จ๐™ฉ ๐™–๐™ฃ๐™™ ๐™๐™š๐™ก๐™ฅ๐™›๐™ช๐™ก ๐™ž๐™ฃ ๐™ฃ๐™–๐™ฉ๐™ช๐™ง๐™š. ๐™ƒ๐™š ๐™–๐™ก๐™จ๐™ค ๐™๐™–๐™จ ๐™– ๐™ซ๐™š๐™ง๐™ฎ ๐™ž๐™ฃ-๐™™๐™š๐™ฅ๐™ฉ๐™ ๐™ ๐™ฃ๐™ค๐™ฌ๐™ก๐™š๐™™๐™œ๐™š ๐™ค๐™› ๐™„๐™ ๐™ฌ๐™๐™ž๐™ก๐™š ๐™ข๐™–๐™ž๐™ฃ๐™ฉ๐™–๐™ž๐™ฃ๐™ž๐™ฃ๐™œ ๐™– ๐™ซ๐™š๐™ง๐™ฎ ๐™—๐™ง๐™ค๐™–๐™™ ๐™ฅ๐™ง๐™ค๐™—๐™ก๐™š๐™ข-๐™จ๐™ค๐™ก๐™ซ๐™ž๐™ฃ๐™œ ๐™ค๐™ช๐™ฉ๐™ก๐™ค๐™ค๐™ . ๐™๐™๐™š๐™จ๐™š ๐™›๐™š๐™–๐™ฉ๐™ช๐™ง๐™š๐™จ ๐™ข๐™–๐™ ๐™š ๐™๐™ž๐™ข ๐™ฃ๐™ค๐™ฉ ๐™ค๐™ฃ๐™ก๐™ฎ ๐™– ๐™ฅ๐™ก๐™š๐™–๐™จ๐™ช๐™ง๐™š ๐™ฉ๐™ค ๐™ฌ๐™ค๐™ง๐™  ๐™ฌ๐™ž๐™ฉ๐™ ๐™—๐™ช๐™ฉ ๐™–๐™ก๐™จ๐™ค ๐™ซ๐™š๐™ง๐™ฎ ๐™ž๐™ฃ๐™จ๐™ฅ๐™ž๐™ง๐™–๐™ฉ๐™ž๐™ค๐™ฃ๐™–๐™ก. โž โ€” ๐™…๐™ค๐™ง๐™™๐™ค๐™ฃ ๐˜ฝ๐™ž๐™ก๐™ก - ๐™ˆ๐™–๐™ฃ๐™–๐™œ๐™ž๐™ฃ๐™œ ๐˜ฟ๐™ž๐™ง๐™š๐™˜๐™ฉ๐™ค๐™ง - ๐˜พ๐™–๐™ก๐™ก๐™˜๐™ค๐™ข ๐™„๐™ฃ๐™ฉ๐™š๐™ง๐™ฃ๐™–๐™ฉ๐™ž๐™ค๐™ฃ๐™–๐™ก

  • Solution Architecture Consultation
  • Cloud Implementation
  • Information Security
  • Cloud Security
  • Microsoft Endpoint Manager
  • Risk Assessment
  • Cloud Engineering Consultation
  • Microsoft Azure
  • Office 365
  • Email Security
  • Microsoft Exchange Online
  • Digital Forensics
  • Incident Response Readiness Assessment
  • Information Security Audit
Muhammad R.

Islamabad, Pakistan

$40/hr
4.8
13 jobs

Hey! CEOs, Founders, Consultants, Community Builders, and Business Owners, I run Triox Cyber Security and lead cybersecurity at AC Group and AMIRA (almost human) in Germany. I'm also a security engineer at Tap Payments. Certified penetration tester (CPTS) with 7 years testing systems and building defenses. Red team: I test web apps, mobile, cloud, wireless, and networks. I find what actually breaks under attack. Blue team: I build SIEM setups (Splunk), XDR, honeypots, IDS/IPS, firewalls, and WAF. Log monitoring is where you catch threats before they cause damage. I work across fintech, enterprise, and tech companies. I'll show you what you're actually exposed to.

  • Penetration Testing
  • Network Penetration Testing
  • Web App Penetration Testing
  • Ethical Hacking
  • Security Testing
  • Security Engineering
  • Website Security
  • Network Security
  • Digital Forensics
  • Cybersecurity Tool
  • Cybersecurity Management
  • Cybersecurity Monitoring
  • System Security
  • Application Security
  • PCI DSS
David M.

Tonbridge, United Kingdom

$50/hr
5.0
2 jobs

๐Ÿ”’ You need security that actually works โ€” not a report that says it does. The organisations I work with want to find the vulnerabilities that matter, fix them with confidence, and get on with growing their business without security becoming the thing that stops them. I have delivered over 1,000 commercial penetration tests across 27 years. Not side projects. Not internal assessments. Full mission-critical engagements for high street and investment banks, hedge funds, insurance firms, government departments, police, military, national infrastructure, retailers, law firms, airports and more. I led the security architecture for the Athens 2004 Olympics internet-facing systems. I was lead architect on the UK Cyber Essentials scheme at launch. I have published in commercial security press and guest lectured at universities. There is a difference between someone who does penetration testing and someone who has seen every flavour of environment, every attack pattern, and every way organisations deceive themselves about their security posture. That difference is what you are hiring. ๐ŸŽฏ Where can I help: ๐Ÿ—ก๏ธ Network & Infrastructure Penetration Testing โ€” adversarial testing of internal and external infrastructure, finding exploitable exposures before an attacker does. ๐ŸŒ Application Penetration Testing โ€” web application and API security testing against real attack patterns: authentication, authorisation, input handling and business logic flaws. โ˜๏ธ Microsoft 365 Security Assessment โ€” Entra ID, Conditional Access, PIM, Intune, DLP, sensitivity labelling, Exchange Online and Defender for Office 365. ๐Ÿ”ท Azure Security Assessment โ€” identity and access management, network controls, storage and key management, Defender for Cloud posture, and monitoring coverage. ๐ŸŸข Google Workspace, GCP & AWS Security Assessments โ€” configuration and access control assessments across Google and Amazon cloud environments. ๐Ÿ›๏ธ Security Architecture and Risk Advisory โ€” senior technical input on architecture decisions, control design and risk without a full engagement commitment. ๐Ÿ‘ค Every engagement is delivered directly by me โ€” David Morgan, founder of Metis Security. No account management layer, no junior handoffs, no templated output. You work with the person conducting the analysis and writing the report. ๐Ÿ“‹ How I work is as important as what I find Every finding in my reports is one I will defend as genuinely material to your environment. No padding, no low-hanging fruit included to justify the fee, no default risk ratings copied from a scanner. If your context changes the risk, the rating reflects that. What you receive: โœ… A visually structured report with clear separation between executive summary, findings and remediation roadmap โ€” written to be read by people who are not security specialists โœ… Risk ratings adjusted to your specific environment and context, not defaulted from a tool โœ… A prioritised remediation roadmap so your team knows exactly what to fix first and why it matters commercially โœ… Immediate escalation of any high-risk finding or schedule-affecting issue during the engagement โ€” you are never waiting until the end to hear something important โœ… Daily status updates so you always know where the engagement stands โœ… A debrief call at close to walk through findings, answer questions and finalise the report before it is delivered CISSP | ISSAP | Microsoft Security certifications | 27 years If you need to know whether your environment is genuinely secure โ€” not whether it looks configured โ€” I am worth a conversation.

  • Vulnerability Assessment
  • ISO 27001
  • Penetration Testing
  • Web Application Security
  • Network Penetration Testing
  • Office 365
  • Microsoft Azure
  • Cloud Security
  • Network Security
  • Security Assessment & Testing
  • Security Infrastructure
  • Cybersecurity Management
  • Zero Trust Architecture
  • Security Analysis
  • Google Cloud Platform
  • Google Workspace
  • Amazon Web Services
  • NIST Cybersecurity Framework
  • NIST SP 800-53
  • Network Administration
Ali K.

London, United Kingdom

$120/hr
5.0
60 jobs

UK-based Data Protection Officer (DPO) and Cybersecurity Advisor with 18+ yearsโ€™ experience advising startups, scale-ups, and regulated organisations across the UK, USA, EU, and international markets. I advise executive teams on data protection, cybersecurity, and regulatory readiness, ensuring organisations remain compliant, secure, and audit-ready without unnecessary complexity. My background includes work with global financial institutions such as UBS and Credit Suisse, alongside fast-growing SaaS, fintech, and health-tech companies. Engagements typically focus on reducing regulatory risk, strengthening trust with customers and partners, and enabling sustainable growth. CORE EXPERTISE Privacy & Data Protection โ€ข GDPR, UK GDPR, CCPA and international privacy frameworks โ€ข DPIAs, RoPAs, DSARs, special category data โ€ข Cross-border data transfers (SCCs, DPAs) โ€ข Privacy, Cookie and Terms & Conditions drafting Cybersecurity & Compliance โ€ข SOC 2 readiness, gap assessments and remediation โ€ข Practical risk assessments and incident response planning โ€ข Secure cloud and architecture advisory โ€ข Vendor risk management and due diligence Questionnaires & Audits โ€ข Client and investor security questionnaires โ€ข Compliance reviews and regulator-ready documentation Training โ€ข Clear, practical workshops for technical and non-technical teams WHO Iโ€™VE SUPPORTED โ€ข Enterprise & Regulated: UBS, Credit Suisse, SNCF โ€ข Health & Special Category Data: ICNARC, DoctorCertified โ€ข SaaS & Fintech: Tangible Markets, Thimsa, CrimsonSocial โ€ข USA Startups scaling into UK/EU markets CREDENTIALS โ€ข CISSP, CIPP/E โ€ข MSc Information Assurance (Norwich University, VT, USA) โ€ข Multi-sector experience across finance, health, SaaS and AI If you need practical, senior-level guidance on privacy and cybersecurity, not theory, letโ€™s talk.

  • ISO 27001
  • Data Privacy
  • GDPR
  • PCI DSS
  • Privacy Law
  • Information Security Consultation
  • Cybersecurity Management
  • SOC 2
  • HIPAA
  • Data Protection
  • California Consumer Privacy Act
  • Database Security
  • Encryption
  • Data Breach Mitigation
  • IT Compliance Audit

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