Computer Security Consultants da assumere
119 risultati mostrati
Freelance sponsorizzati
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touhidecevw touhidecevw
60 $ USD / ora
Network & System Specialist|CCNP|Fortinet|RHCE|CEHBangladesh✅As a highly skilled and experienced network and system administrator with over 11 years of expertise, I hold notable certifications such as CCNP, CCNA, RHCE, and Certified Ethical Hacker (CEH) . I have established myself as an accomplished network, system, and security engineer, capable of delivering complete...✅As a highly skilled and experienced network and system administrator with over 11 years of expertise, I hold notable certifications such as CCNP, CCNA, RHCE, and Certified Ethical Hacker (CEH) . I have established myself as an accomplished network, system, and security engineer, capable of delivering complete solutions for designing, configuring, automating, and managing network and system projects. My proficiency in using simulation software such as Packet Tracer and GNS3, as well as real-life network and system devices, make me a valuable asset for any project. My few hands-on experiences is : ✅Network Design by MS Visio, Cisco packet tracer, GNS3, and EVE-NG ✅Netacad CCNA and CCNP packet tracer Labs activities, projects design and solution ✅Cisco routers, switches, FTD, FMC, and ASA firewalls. ✅WatchGuard, Palo Alto, CheckPoint Firewall, SonicWall, Fortigate, pfSense, OPNsense, Huawei firewalls. ✅Unifi Enterprise Fortress Gateway, Ubiquiti UDM Pro, Unifi Cloudkey, USG UniFi Firewall , Security Gateway, Switch, and AP devices ✅ Netgear, Huawei, Aruba switch, DrayTek router, TP-Link and others vendor wireless router configurations. ✅Cisco, Tp-Link, Aruba, Fortinet, Ubiquiti, Planet, Huwei switch configurations. ✅MikroTik Routers and switch configuration ✅ SNMP monitoring configuration: Observium, Librenms, Cacti, Nagios core ✅ Cloud Administrator: Azure, AMAZON AWS , Google GCP, OVH Cloud and Digital Ocean, Contabo ✅Hyper-V, VMware ESXi, VMware Workstation, VirtualBox, KVM, and Proxmox. ✅Ubuntu, Red Hat, CentOS, Debian, openSUSE, and Kali Linux distributions. ✅Windows server administration , Active Directory management, Exchange Server administration, DNS configuration ✅Servers: HP Proliant Servers, Dell/EMC Servers, IBM ✅VLSM/subnetting of small to large enterprises ✅VLANs, Inter-VLAN routing, VTP, CDP, Ether-Channel(LACP, PAGP) ✅DHCP, NAT/PAT configuration and IP helper address ✅static and Dynamic Routing protocols (RIP, OSPF, EIGRP, BGP) configuration ✅Layer-3 Redudent/backup links Using HSRP, VRRP ✅Port security, ACL( access list) configuration ✅Network troubleshooting and optimization ✅VPN Configuration Expert (GRE , SSL, IPSEC, PPTP, OpenVPN & DMVPN) ✅Network automation script for any Cisco and FortiGate devices using python ✅Overlay Networks VPN Expertise: Proficient in configuring and managing various overlay network VPNs, including ZeroTier, Tailscale, WireGuard, SoftEther VPN, Netbird , Netmaker, OpenVPN Cloud, I, Twingate and PeerVPN for secure, scalable, and decentralized networking, enabling seamless remote access, team collaboration, and encrypted communications across distributed systems. ✅Cisco Duo: MFA, 2FA, SSO, Identity Security Integration, Windows Logon, RDP, Microsoft AD, VPN Authentication. meno
Assumi touhidecevw
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Test di penetrazione, Informatica forense, Sicurezza Informatica, Scrittura Tecnica, Consulenza forenseI am a Cybersecurity, Digital Forensics, and Threat Intelligence professional with extensive experience supporting Law Enforcement, corporate security teams, legal counsel and high risk private investigations. I specialize in handling complex, sensitive, and technically challenging cases ranging from cybercrime and...I am a Cybersecurity, Digital Forensics, and Threat Intelligence professional with extensive experience supporting Law Enforcement, corporate security teams, legal counsel and high risk private investigations. I specialize in handling complex, sensitive, and technically challenging cases ranging from cybercrime and financial fraud to advanced infrastructure OSINT, cloud security assessments, and forensic malware analysis. My work spans end-to-end digital investigations, incident response, and security testing across Web, Mobile, and critical infrastructure. I combine deep technical capability with defensible reporting standards, ensuring every engagement produces clear, actionable, and legally sound intelligence. Recent engagements include: • OSINT & Infrastructure Mapping of mirrored domain networks, CDN/proxy-shielded assets, and cross-platform digital footprints • Grey-box Application & API Security Assessments using commercial toolsets and structured re-validation cycles • Malware & Ransomware Behaviour Analysis, forensic triage, and evidence acquisition across Windows, Linux, and cloud workloads • Telegram OSINT, account attribution, and disruption-oriented investigations • Remote compromise investigations involving lateral movement, clipboard-based file drops, and email access • CCTV/Wireless Network Security Testing, IoT risk evaluations, and hardware-linked forensic collection • Digital evidence reconstruction for violent-crime video analysis, fraud, and identity misuse cases. Core Expertise • Digital Forensics & Evidence Recovery • Incident Response & Malware Behaviour Analysis • Cybercrime, Financial Fraud & Threat Attribution • OSINT, Infrastructure Recon & Digital Footprint Mapping • Penetration Testing (Web, API, Mobile, Cloud & Wireless) • Secure Architecture Reviews (On-Prem & Cloud) • Cloud Security (GCP, Kubernetes) • Forensic Reporting & Legal Documentation Support My mission is to translate complex technical investigations into clear, strategic outcomes whether restoring organizations after a targeted breach, exposing and documenting coordinated cyber threats, supporting law enforcement with defensible evidence, or strengthening security environments to prevent future attacks. meno
Assumi kajal1992
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Top 1% Freelancer with 8+ years of experience as a Computer Scientist , Full-Stack Engineer and Cloud/Cybersecurity Architect. I deliver end-to-end solutions for high-stakes business problems, from concept to production-ready deployment for global clients. My expertise is not just in one domain : I architect and build...Top 1% Freelancer with 8+ years of experience as a Computer Scientist , Full-Stack Engineer and Cloud/Cybersecurity Architect. I deliver end-to-end solutions for high-stakes business problems, from concept to production-ready deployment for global clients. My expertise is not just in one domain : I architect and build the entire system , the secure infrastructure, the scalable backend, and the polished frontend , ensuring a resilient and high-performance result. Core Competencies & Verifiable Experience: ► Full Stack Product Delivery: I have a proven record of shipping complex applications from scratch. My portfolio includes 5+ live apps, demonstrating expertise in: Complex Business Systems: Architected and built the 70+ page front-end for erpflow.vercel.app (HR, Payroll, CRM). HIPAA-Compliant HealthTech: Built the full-stack healthsync-personalize multi-role management system. Cross-Platform Mobile: Delivered a complete Flutter IPTV app (iOS, Android, Web), handling the full lifecycle. ► Cloud & DevOps Architecture (AWS/GCP/Azure): I design and implement scalable and cost-efficient cloud infrastructure. Complex Cloud-Native Solutions: Architected secure, multi-cloud environments, including a sophisticated project integrating IoT devices (nRF9160) with AWS IoT Core for a New Zealand client. Infrastructure Mastery: Deep, hands-on expertise in Linux (Ubuntu, Red Hat), Virtualization (Virtualbox, VMWare, Proxmox), and Containerization (Docker, Kubernetes) to build efficient, high-performance systems. ► Cybersecurity & GRC Architecture: I build systems that are secure and compliant by design, leveraging a practitioner's understanding of both offense and defense. High-Stakes Incident Response: Successfully defended global clients by neutralizing live DDoS attacks (Australia) and architecting custom IDS/IPS rules (Snort/Suricata) to protect IoT fleets (Malta). Audit & Compliance Readiness: Guided enterprise clients through ISO 27001 & SOC 2 audit preparations. Tech Stack: Security: Wazuh, Elasticsearch Stack , Snort, Metasploit, Nessus , Nmap Cloud: AWS, GCP, Azure, Docker, Kubernetes, Terraform Dev: React, Node.js, TypeScript, Flutter, SQL/MySQL , PostgreSQL, Supabase Services Offered: End-to-End Secure Product Development (Web, Mobile, IoT). Cloud & Security Architecture (AWS, GCP, Azure). GRC & Compliance Automation (ISO 27001, SOC 2). Technical Due Diligence & Pre-Acquisition Audits. High-Stakes Problem Solving & Crisis Response. Let's connect and discuss how I can bring this comprehensive, battle-tested expertise to your most important project. meno
Assumi ahmedhassan52
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engkarimismail engkarimismail
50 $ USD / ora
✅ Senior Network & System Engineer | Security|VOIPMalaysia✅ About Me I am an experienced IT professional with expertise in server administration, networking, virtualization, and security. My skill set spans managing server operating systems, configuring directory services, implementing DNS/DHCP solutions, and deploying virtualization platforms. I have a strong background in...✅ About Me I am an experienced IT professional with expertise in server administration, networking, virtualization, and security. My skill set spans managing server operating systems, configuring directory services, implementing DNS/DHCP solutions, and deploying virtualization platforms. I have a strong background in firewalls, scripting, containerization, and database management. Additionally, I specialize in mail servers, backup systems, and cloud technologies. With advanced networking skills, including Cisco routing, VLAN management, VoIP/IP telephony, and penetration testing, I am well-equipped to handle complex IT infrastructures. I am dedicated to delivering reliable solutions, ensuring data integrity, and enhancing system performance. ✅Send me now 24/7 Availability Unlimited Revisions Fast Response ✅ Server Operating Systems Windows Server (2003 to 2024) | Ubuntu | CentOS | Debian | RHEL ✅ Directory Services Active Directory | OpenLDAP ✅ DNS and DHCP Windows Server DNS | DHCP | Linux DNS | DHCP ✅ Virtualization Microsoft Hyper-V | VMware ESXi | vCenter | Proxmox VE ✅ File Servers IIS FTP | proftpd | FileZilla | FTP Server | Samba ✅ Web Servers Apache | NGINX | Microsoft IIS ✅ Scripting and Automation PowerShell scripting | Bash scripting ✅ Containers Docker | Windows Subsystem for Linux (WSL) ✅ Backup Systems Veeam Backup | Iperius Backup | UrBackup ✅ Mail Servers Mailcow | Microsoft Exchange (2000–2019) | MailWizz | Postfix | EXIM ✅ Database Servers MySQL | PostgreSQL | MariaDB ✅ Firewalls and Security MikroTik | PFSense | Cisco Firewalls ✅ Networking Skills Cisco Routing and Switching | VLANS | OSPF | VoIP and IP Telephony | Network Penetration Testing Access Control Lists (ACLs) Security (MITM Attack Mitigation) ✅ Recovery Services Password recovery for accounts and routers | Disaster recovery planning ✅ VOIP Service Freepbx | freeswitch | CME | IP TELEPHONY | 3CX SYSTEMS ✅ Cloud Service AWS, DigitalOcean, Hetzner, Azure, Google Cloud Platform, IBM Cloud, Oracle Cloud, Alibaba Cloud, Contabo, Seva meno
Assumi engkarimismail
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ZAWN Tech is a trusted software company founded in 2014, delivering complete digital solutions for startups and enterprises worldwide. Our certified developers combine deep technical knowledge with real-world project experience to build fast, secure, and scalable systems. Core Expertise Blockchain: Metaverse, Web3,...ZAWN Tech is a trusted software company founded in 2014, delivering complete digital solutions for startups and enterprises worldwide. Our certified developers combine deep technical knowledge with real-world project experience to build fast, secure, and scalable systems. Core Expertise Blockchain: Metaverse, Web3, NFTs, NFT Games, Smart Contracts, Arbitrage & Sniper Bots, DEX / DApp Development (Ethereum, BSC, Polygon, Solana, WAX). Web & SaaS Development: Full-stack using React, Node.js, Laravel, Django, and Next.js. Integration with Odoo, Bubble.io, Zoho, and Webflow. eCommerce: Shopify, WooCommerce, Magento, and custom marketplace platforms with payment, shipping, and ERP integrations. Mobile Apps: Native and cross-platform (Flutter, React Native, Android, iOS). AI & Computer Vision: Chatbots, GPT integrations, TensorFlow, OpenCV, and OCR systems. Game Development: Unity 3D, Unreal, and WebGL with multiplayer, blockchain, and AR/VR support. Trading & Financial Automation: MT4/5, TradingView, Binance, Interactive Brokers, and algorithmic trading bots. Hardware & IoT: Arduino, Raspberry Pi, ESP32, MATLAB, embedded control, and automation projects. With 200+ recommendations and over a decade of experience, we turn complex ideas into reliable, production-ready solutions — delivered with clear communication and long-term support. meno
Assumi AwaisChaudhry
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With over 10 years of experience in cybersecurity, I specialize in protecting businesses and individuals from cyber threats. I've worked across industries such as finance, healthcare, and retail, helping clients secure their digital infrastructure with tailored solutions. What I Can Do for You: Web Application...With over 10 years of experience in cybersecurity, I specialize in protecting businesses and individuals from cyber threats. I've worked across industries such as finance, healthcare, and retail, helping clients secure their digital infrastructure with tailored solutions. What I Can Do for You: Web Application Penetration Testing I uncover vulnerabilities like SQL injection, cross-site scripting (XSS), and authentication flaws, ensuring your web applications are secure from attacks. Network Security Assessments I assess your network infrastructure, identifying weaknesses in firewalls, routers, and internal systems to prevent unauthorized access and data breaches. Cloud Security Audits I review your cloud setup to ensure proper configurations, access control, and encryption, keeping sensitive data secure. API Security Testing I help secure your APIs by identifying vulnerabilities like broken authentication, authorization flaws, and data exposure. Mobile Application Security Testing I analyze your mobile apps for security issues, such as insecure data storage and weak encryption, ensuring a safe experience for your users. Forensics & Malware Analysis I investigate suspicious activity and malware across networks, PCs, and mobile devices. My forensic analysis helps track and eliminate threats while providing insights into how the attack occurred and how to prevent future breaches. Vulnerability Scanning & Reporting I provide thorough vulnerability scans and deliver detailed reports with prioritized recommendations, helping you fix issues efficiently. Security Hardening I implement best practices in secure coding, encryption, and multi-factor authentication to protect your systems from future attacks. Compliance & Risk Assessments I ensure your business meets industry compliance standards, such as GDPR, HIPAA, and PCI DSS, while improving your overall security posture. Why Clients Choose Me: Proven Expertise With over 10 years of experience, I’ve secured businesses of all sizes and industries, delivering real results that prevent cyberattacks and strengthen defenses. Tailored Solutions Every business has unique security needs, and I customize my services to fit your specific requirements, ensuring the best protection. Actionable Reporting I don’t just identify risks—I provide easy-to-understand, actionable recommendations so you can address vulnerabilities immediately. Ongoing Support I offer continuous support and guidance, helping you stay ahead of evolving threats and ensuring your security remains strong. Let’s Work Together: Whether you need penetration testing, forensic investigation, malware analysis, or ongoing security assessments, I’m here to help. Let’s discuss how I can provide tailored security solutions to protect your business from cyber threats. meno
Assumi ahad47
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Senior Systems & Security Engineer with 15+ years in enterprise-grade IT. I design, harden, and operate high-availability infrastructure, and I streamline delivery with automation and clean processes. My focus: reliability, security, and clear documentation—so changes are low-risk and handovers are...Senior Systems & Security Engineer with 15+ years in enterprise-grade IT. I design, harden, and operate high-availability infrastructure, and I streamline delivery with automation and clean processes. My focus: reliability, security, and clear documentation—so changes are low-risk and handovers are effortless. Strengths: Infrastructure architecture & operations (Linux/Windows, virtualization, networking) Security hardening, identity & access, monitoring/observability Automation & DevOps practices (CI/CD, config management, IaC) Migrations and upgrades with minimal downtime Concise runbooks, risk-aware planning, and stakeholder-friendly communication Certifications: CompTIA Security+, Microsoft MCSE/MCSA/MCITP Languages: English (C2), German (C1), native Romanian Location: Germany • NDA-friendly • Reliable and responsive meno
Assumi iosifpeterfi
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Revisione, Redazione di procedure di conformità e sicurezza, Scrittura Tecnica, Scrittura di articoli, Supporto amministrativoMy Education: MS TQM, M.Sc. Chemistry, MBA Management, Diploma in Graphic Design Diploma in Freelancing Diploma in WordPress Web Development Diploma in Creative Content Writing Diploma in SEO (Search Engine Optimization) Diploma in AutoCAD Architecture Diploma in E-Commerce Diploma in AI Apps & Website...My Education: MS TQM, M.Sc. Chemistry, MBA Management, Diploma in Graphic Design Diploma in Freelancing Diploma in WordPress Web Development Diploma in Creative Content Writing Diploma in SEO (Search Engine Optimization) Diploma in AutoCAD Architecture Diploma in E-Commerce Diploma in AI Apps & Website Development Certifications (IRCA UK Accredited - Lead Auditor in), ISO9001:2015 QMS, 14001:2015 EMS, FSSC22000, ISO45001:2018, OH & S MS ISO17025:2017, LMS ISO27001:2022, ISMS ISO13485:2016, Medical Devices ISO22301:2019 Security & Surveillance, ISO27701:2019 GDPR Compliance Management system ISO 37001:2016 ABMS HALAL PS3733, SIMIC, OIC Halal Standards, Lean Six Sigma Green Belt, HIPAA Awareness & Compliance Experience: 20 years as a management consultant & freelancer Skills: Management Systems, ISO certification & documentation, Six Sigma, Halal Systems, Thesis & article review & proof Reading. Graphic Design, Auto Cad, WordPress meno
Assumi mnaeemanjum
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I’m Brayan Arias — known by my clients as ⭐ The Coding Machine ⭐. I’m a Senior .NET Developer from Colombia with 10+ years of experience building powerful, scalable, and intelligent software solutions. My expertise spans the Microsoft ecosystem — from .NET (WPF, MAUI, Blazor, ASP.NET Core) to Azure cloud...I’m Brayan Arias — known by my clients as ⭐ The Coding Machine ⭐. I’m a Senior .NET Developer from Colombia with 10+ years of experience building powerful, scalable, and intelligent software solutions. My expertise spans the Microsoft ecosystem — from .NET (WPF, MAUI, Blazor, ASP.NET Core) to Azure cloud integration, AI-powered applications, and system-to-system integrations that help businesses automate, optimize, and grow. I pride myself on clear communication, clean architecture, and delivering solutions that delight clients and make a measurable impact. Whether you need to modernize a legacy app, integrate Azure services, or leverage AI to enhance productivity, I’m ready to bring your vision to life. Let’s build something amazing together — reliable, intelligent, and designed to impress. meno
Assumi brayanstiven5
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Bringing the Human Touch to Research & Academic Excellence In an AI-driven world, quality research still demands a human touch, deep insight, intellectual rigor, and analytical precision. That’s exactly what I bring to every project. With 10+ years of experience, I specialize in all types of research, dissertations,...Bringing the Human Touch to Research & Academic Excellence In an AI-driven world, quality research still demands a human touch, deep insight, intellectual rigor, and analytical precision. That’s exactly what I bring to every project. With 10+ years of experience, I specialize in all types of research, dissertations, journal articles, and reports across diverse disciplines. Whether it’s business, economics, psychology, or social sciences, I deliver meticulously researched, well-structured, and publication-ready content. Academically, I am a BSc. in ACCOUNTING and an MA in Economics with expertise in statistical software: Excel, SPSS, STATA and R. Skills and Experience: - Excellent research and writing skills and expertise in different academic formatting styles - Familiarity with different literature and scholarly sources - Access to credible databases: PubMed, Web of Science, EBSCO, and JSTOR - Proficiency in designing and conducting research studies and expert in qualitative and quantitative data collection methods and analysis - Excellent communication and report writing skills to effectively communicate findings and insights - Ability to work efficiently and meet strict deadlines Beyond research, I conduct Statistical & Data Analysis. I provide advanced statistical analysis to support research in psychology, business, social sciences, and other fields. My proficiency includes: • Psychometric Analysis – Developing and validating measurement tools, scale construction, and reliability testing. • Factor Analysis – Identifying underlying variables in complex datasets and assessing data structure. • ANOVA & T-tests – Comparing means and testing hypotheses to determine statistical significance. • Regression Analysis – Exploring relationships between variables for predictive modeling. • Reliability & Validity Testing – Ensuring consistency and accuracy in research findings. • Surveys & Experimental Research – Designing, analyzing, and interpreting qualitative and quantitative surveys. I don’t just deliver research, I craft insightful, data-driven, and publication-ready work that elevates academic and professional projects. Let’s collaborate to produce exceptional research that makes a lasting impact! meno
Assumi NoelReubenMuturi
