Hire the Best Cryptographers

I find the vulnerabilities in your web apps, APIs, and networks before attackers do, then hand your team a clear, reproducible penetration testing report they can act on. GXPN and GCIH certified. Top Rated on Upwork with 100% Job Success across web application, API, and network security engagements. No scanner dump and no jargon wall. Every finding comes with a severity rating (CVSS), working proof of concept, and a concrete fix your developers can ship. What I test: - Web application penetration testing (OWASP Top 10, PTES, NIST) - API security testing (REST, GraphQL, auth/OAuth, IDOR, broken access control) - SaaS and multi-tenant assessments (Supabase / Firebase data-isolation testing) - Network and external perimeter penetration testing - Source code / secure code review How I work: authorized testing only, on systems you own or have permission to test. Everything is documented over Upwork so you get a written record of every finding, not a verbal hand-wave. I retest after you patch to confirm the holes are actually closed. Credentials: GXPN (GIAC Advanced Penetration Tester & Exploit Researcher), GCIH (GIAC Certified Incident Handler), SANS CTF winner, and an active national/international CTF competitor (web, reverse, crypto, forensics). I also handle WordPress malware removal and incident response. See my Project Catalog for a fixed-price option.

Hi there! I'm Muhammad Shahid a cryptographer, cybersecurity specialist, and software developer with a strong mathematical foundation in complexity theory and algorithm design. I hold a master's degree in mathematics and a bachelor's degree in computer science, and I've spent several years applying my expertise to advanced research and real-world projects across both academia and industry. I specialize in: Cryptography & Security Protocols designing and implementing cryptographic algorithms, proofs, and secure systems. Blockchain & Decentralized Systems applying cryptographic primitives to smart contracts, consensus, and secure distributed applications. Software Development proficient in Python, C, Go, and MATLAB for cryptographic computation, data analysis, and system design. Algorithm Design & Analysis optimizing performance and reasoning rigorously about computational complexity. I'm a fast learner who thrives in collaborative environments and enjoys tackling intellectually challenging problems. My work focuses on precision, efficiency, and secure, elegant solutions grounded in solid mathematical reasoning. If your project involves cryptography, blockchain, security engineering, or complex algorithmic computation, I'd love to discuss how I can help bring your idea to life. Let's connect and build something exceptional.

BACKGROUND: Quantum computing researcher with hands-on experience developing and deploying data science models on real quantum hardware. Achieved 96.1% correctness on IBM quantum systems with expertise in quantum machine learning, classification algorithms, and optimisation techniques. A proven track record in Python-based data pipelines, statistical modelling, and cross-functional collaboration. Experienced in translating complex technical problems into practical solutions with measurable business impact.

I design and build production-grade security systems for companies that need to secure cloud infrastructure, pass audits, and operate in regulated environments. Most teams don’t have a security tool problem. They have an architecture, integration, and execution problem. That’s where I come in. What I Do I help startups and enterprise teams move from: ❌ fragmented tools and partial controls ❌ audit delays and failing security reviews ❌ reactive fixes and security debt → to ✅ engineered, scalable security architecture ✅ audit-ready, continuously compliant environments ✅ automated, integrated security operations Core Expertise Cloud Security & Cryptography • Multi-cloud security architecture (AWS, Azure, GCP) • TLS PKI systems with automated certificate lifecycle (IaC + CI/CD) • Encryption architecture (CMEK, KMS, data masking, data protection) • Cryptographic hardening aligned with FIPS and modern standards • DNS security, network isolation, and zero-trust patterns Identity & Access Management • SSO (SAML, OIDC), enterprise identity federation • RBAC and least-privilege system design at scale • SCIM provisioning and identity lifecycle automation • Integration with enterprise IdPs (PingFederate, Azure AD, Okta) • Cross-account and multi-environment access control Compliance & Audit Readiness • SOC 2, ISO 27001, PCI DSS, HIPAA, FedRAMP-aligned environments • End-to-end delivery: gap assessment → implementation → audit support • Control design, remediation, and evidence automation (Vanta, Drata, custom pipelines) • Continuous compliance monitoring vs point-in-time audits • Closing audit findings fast (not just identifying them) Security Engineering & Incident Response • CI/CD security (SAST, DAST, IaC scanning, secret management) • Vulnerability management with automated remediation workflows • Cloud misconfiguration detection (CIS benchmarks, runtime analysis) • Secure system design across infrastructure and application layers • Incident response, forensics support, and system hardening AI-Driven Security I don’t just integrate tools — I design security platforms. I have built and architected multi-agent AI-driven cybersecurity systems combining: • Cloud security analysis (AWS integrations, IAM analysis, misconfiguration detection) • Offensive security (recon, exploitation, privilege escalation simulation) • Vulnerability management (SAST, DAST, fuzzing, CI/CD integration) • SOC automation (SIEM/SOAR integrations, alert enrichment, playbooks) • Forensics and incident investigation workflows • Compliance reporting mapped to frameworks (SOC 2, ISO 27001, PCI, HIPAA) Key capabilities: • Multi-agent orchestration and communication • Automated remediation workflows • MITRE ATT&CK mapping and executive reporting • API-driven integrations across security tooling ecosystem • Role-based access for security, DevOps, and compliance teams This enables: → Continuous security instead of periodic assessments → 80% reduction in manual security effort → Faster audit readiness and real-time visibility How I Work • Engineering-first — I build and implement, not just advise • Work directly in production systems (cloud, identity, pipelines) • Design for real audit constraints, not theoretical compliance • Fast execution, clear communication, and ownership Typical Clients • SaaS companies preparing for SOC 2 / ISO 27001 / HIPAA • Cloud-native platforms handling sensitive or regulated data • Startups entering enterprise sales with security blockers • Organizations with fragmented security tools that don’t work together Important I’m not a fit for checklist-based security or surface-level audits. If you need: • real security architecture • working implementations • systems that pass audits and hold up in production - we’ll work well together.

I specialize in cybersecurity, focusing on threat detection and incident analysis with hands-on experience in detection engineering. I have developed Sigma detection rules aligned with MITRE ATT&CK techniques, rigorously validated through Atomic Red Team testing in controlled environments. My expertise includes working with SIEM platforms like Splunk and Wazuh, alongside PowerShell abuse detection and monitoring Windows process and registry telemetry. I have a strong emphasis on adversary emulation and fileless attack detection, enabling me to create high-signal, low-noise security detections. If you are looking for a detail-oriented analyst who can enhance your security posture through innovative detection strategies, I am ready to help your organization stay secure. Let's connect to discuss your cybersecurity needs.

I have more than 13 years of practical working experience in cyber security sector. I am crypto scam investigator and recovery specialist. I am expert on digital forensics investigation. I can help you for VAPT and Audit Cases. My expertise areas: 1. Crypto Scam Investigator & Recovery Expert, I am a crypto scam investigator & recovery expert. I have done 300+ cases already. I understand the importance of recovering funds. I am professional & worked with clients from USA, Canada, UK, Australia, and more locations. I will handle your case with the utmost professionalism and dedication. Normally Scammers manipulate clients to invest in scam sites. After that, they shows the fake growing amount. Then clients invest a huge amount for a handsome profit. But when the client want to withdraw the amount then the scammer tells the client to pay for taxes & services, etc. If the client even pay taxes they will never allow for withdrawal requests. These are the very common tricks that scammers apply nowadays. Here is an outline of how I will assist you in recovering your clients' funds and catching the criminal: a) I will trace-back all the transactions and find the final holding wallet addresses b) I will check the website for vulnerabilities c) I will provide a report that include every single step details for the law enforcement Hire me to get this service immediately 2. SOC Setup for monitoring your target devices. My project offers a comprehensive Security Operations Center (SOC) setup service that integrates Elastic Search, Wazuh, and Filebeat to provide an all-encompassing solution for monitoring and securing your IT infrastructure. This service is designed to help organizations of all sizes protect their digital assets, ensure compliance with industry standards, and respond swiftly to security incidents. #Elastic Search Installation: #Wazuh Installation: #Filebeat Installation: #Manager Installation on Client Machine: #Dashboard and Reporting Setup: #Testing and Validation: #Training and Handover: Providing training sessions to your team on how to use and manage the SOC setup. Key Benefits: Enhanced Security Posture: Gain comprehensive visibility into your network, identify threats in real-time, and respond swiftly to security incidents. Why Choose My Service? With 5 years of experience in cybersecurity and SOC implementations, I bring a wealth of knowledge and skills to ensure your project is successful. My background includes working with various organizations to enhance their security measures and protect their digital assets. Hire Me Now! 3. Digital Forensics Service: I specialize in digital forensics and cyber investigation services to uncover the truth behind cyber incidents. With 10 years of experience, I offer: a) Digital Forensics: Expert analysis of digital devices to retrieve critical evidence. b) Incident Response: Swift response to contain breaches and identify attack vectors. c) Network & System Analysis: Identification of unauthorized access and vulnerabilities. d) Malware Analysis: In-depth examination to determine malware nature and impact. e) Expert Witness Testimony: Qualified to provide clear technical support in legal proceedings Hire me to get this service immediate 4. Vulnerability Assessment & Penetration Testing (VA/PT) Service: With nearly 10 years of experience in vulnerability assessment & penetration testing, I aim to provide the highest level of security for clients' websites and applications. Through testing and a comprehensive report, I identify vulnerabilities and offer actionable recommendations for improvement. Please provide project details for an accurate estimate. Hire me to get this service immediately 5. Hack Investigation & Hack Removal Service: I offer comprehensive Hack Investigation & Removal services a) Thoroughly investigate the incident, identify its source and impact. b) Swiftly remove malicious code and unauthorized access. c) Recover compromised data and fortify security measures. d) Continuous monitoring and support for ongoing protection. Hire me to get this service immediately 6. Cyber Security Risk & Compliance: I have experience in the telecom sector as a Compliance officer. I can help for IS Audit, MBSS Baseline security check, CIS Benchmark check, IS Evidences, NDA, Firewall Rules, Router Settings, API Security, DB Security, OS Security etc to make the whole system secure. I can prepare an checklist based on your asset to maintain and followup security compliance.