Internet Security Experts pentru angajare
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engkarimismail engkarimismail
$50 USD/oră
✅Senior Network & System Engineer | Security|VOIP✅Malaysia✅ 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 mai puțin
Angajează pe 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. mai puțin
Angajează pe 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. mai puțin
Angajează pe ahad47
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✅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. mai puțin
Angajează pe touhidecevw
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A common challenge clients face is finding candidates capable of rigorous research and applying scientific and engineering principles to effectively troubleshoot and resolve their software problems or meet specific needs. As a Senior Software Engineer with over 12 years of experience, I possess the precise skillset...A common challenge clients face is finding candidates capable of rigorous research and applying scientific and engineering principles to effectively troubleshoot and resolve their software problems or meet specific needs. As a Senior Software Engineer with over 12 years of experience, I possess the precise skillset required to address this gap. My expertise encompasses: - Developing New Web Applications, E-commerce Platforms, and Websites: Utilizing popular open-source solutions including WordPress, Magento, Laravel, and others. - Systematic Troubleshooting: Diagnosing and resolving complex bugs and issues within WordPress, Magento, Laravel, Python, Django, MySQL, and various other environments. - Security Remediation: Identifying and eradicating malware, rootkits, and resolving security vulnerabilities on websites and Linux servers after compromise. - Infrastructure Management and Migration: Executing seamless server-to-server or version-to-version migrations for platforms like WordPress, Magento, and Laravel. - Performance Engineering: Implementing comprehensive speed optimizations to achieve maximum performance for websites and web applications. - Linux Server Administration: Installing, managing, configuring, and fixing issues on Linux server environments, including CentOS, Ubuntu, and platforms like WHM/cPanel and Plesk. mai puțin
Angajează pe TheCodingZone99
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👋 Hi, I’m Sarath K 🚀 Senior Linux System Administrator & DevOps Engineer Trusted by startups, SaaS founders, agencies, and enterprises worldwide 🌍 With 10+ years of hands-on experience, I help businesses deploy, fix, migrate, secure, and optimize production servers — fast, clean, and without downtime. 🔥 Clients...👋 Hi, I’m Sarath K 🚀 Senior Linux System Administrator & DevOps Engineer Trusted by startups, SaaS founders, agencies, and enterprises worldwide 🌍 With 10+ years of hands-on experience, I help businesses deploy, fix, migrate, secure, and optimize production servers — fast, clean, and without downtime. 🔥 Clients Hire Me When: 🚨 Their server is down or unstable 📧 Emails are failing or landing in spam ☁️ Cloud setups are misconfigured 🧩 Previous developers couldn’t fix the issue ⚡ They need urgent, expert-level help 👉 And I deliver — often within minutes or hours, not days. 🏆 What I Do Best (Proven by 90+ Reviews) 🐧 Linux & Server Administration - Ubuntu, Debian, CentOS, AlmaLinux, Rocky, RedHat - Performance tuning & optimization - Server hardening & monitoring - Malware removal & server recovery - Zero-downtime migrations ☁️ Cloud & DevOps - AWS, Google Cloud, Azure, DigitalOcean, Linode, Hetzner, OVH - EC2, Lightsail, Load Balancers, Firewalls - Docker & Docker Compose - CI/CD & deployment automation - Production-ready cloud setups - Web & App Hosting - Apache, Nginx, LiteSpeed - PHP, Laravel, CodeIgniter, Node.js, Python - React / Next.js deployments - SSL, HTTPS, Reverse Proxies - WebSockets & real-time apps 🗄️ Databases - MySQL, MariaDB, PostgreSQL - Performance tuning & optimization - Database recovery - Backup & restore strategies 📧 Email & DNS (Specialist Area) - Zoho, Google Workspace, Microsoft 365 - Postfix, Dovecot, Zimbra, iRedMail - SPF, DKIM, DMARC (Deliverability Expert) - Cloudflare DNS & security 🎛️ Control Panels - cPanel / WHM, Plesk, DirectAdmin - ISPConfig, CyberPanel, Virtualmin 🏢 Secure multi-tenant hosting environments - Security & Compliance - Server hardening & best practices - OWASP Top 10 mitigation - Firewalls & intrusion prevention - Malware cleanup & prevention - OpenAI & ChatGPT Integration 💬 Why Clients Love Working With Me ✔ ⚡ Extremely fast response ✔ 🗣️ Clear & honest communication ✔ 🧠 Fixes issues others couldn’t ✔ 💪 Goes beyond scope when needed ✔ 🧘 Calm under pressure (production emergencies) ⭐ “Cloudflare support was useless — Sarath fixed everything in 30 minutes.” ⭐ “Best server guy I’ve ever worked with.” ⭐ “Solved in minutes what others couldn’t in weeks.” 📩 Let’s Get Started If you need a reliable expert who gets things done right the first time, send me a message. 🔥 I’m ready to help you now. — Sarath K Linux • DevOps • Cloud • Servers mai puțin
Angajează pe sktricks
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Securitate de rețea, Testare de penetrare, Securitate în cloud, Investigații digitale, Securitatea internetuluiOffensium Vault Private Limited is an ISO/IEC 27001:2022 and ISO 9001:2015 certified cybersecurity company delivering advanced offensive and defensive security services. Our certifications validate our commitment to world-class information security and consistent service quality, making us a trusted partner for...Offensium Vault Private Limited is an ISO/IEC 27001:2022 and ISO 9001:2015 certified cybersecurity company delivering advanced offensive and defensive security services. Our certifications validate our commitment to world-class information security and consistent service quality, making us a trusted partner for businesses globally. We help startups, enterprises, and international clients secure their digital assets with industry-standard methodologies, highly skilled professionals, and a complete security lifecycle approach. We offer a comprehensive suite of services: ⭐ Our Core Cybersecurity Services ✅ Vulnerability Assessment & Penetration Testing (Web, API, Mobile – Android/iOS, Network) ✅ Red Team Operations (Adversary Simulation & Breach Testing) ✅ Blue Team Services (Defensive Monitoring & Threat Mitigation) ✅ Source Code Review & Application Security ✅ Cloud Security & Configuration Review ✅ Infrastructure Security & Hardening ✅ Container & DevOps Security Solutions ✅ Security Automation & Threat Detection ✅ Web Application Firewall (WAF) Configuration – Cloudflare & Others ✅ Continuous Vulnerability Management ✅ Incident Response & Digital Forensics ✅ Security Audits & Ongoing Consultancy ✅ Security Training & Awareness Programs ✅ Compliance Support (ISO, PCI-DSS, SOC 2, GDPR, etc.) ✅ Bug Bounty Program Management ⭐ Why Clients Choose Offensium Vault ✅ ISO 27001:2022 Certified – Highest global standard for information security ✅ ISO 9001:2015 Certified – Assured service quality & delivery excellence ✅ 100% on-time & on-budget delivery record ✅ Clear, professional reporting with actionable fixes ✅ Transparent communication and 24/7 availability ✅ Expertise across fintech, healthcare, SaaS, eCommerce & government sectors ✅ Trusted by global clients for high-risk, high-impact projects ⭐ Professional Guarantee We deliver security work with full confidentiality, structured methodologies (OWASP, NIST, OSSTMM), and verifiable certification-backed processes. Every engagement includes: ✅ Detailed VAPT report ✅ Risk ratings & CVSS scoring ✅ Mitigation guidance ✅ Retesting & verification ✅ Optional security certificate of testing completion Our client-focused approach ensures tailored solutions, actionable insights, and 24/7 support for your peace of mind. Whether you're a startup or an established enterprise, Offensium Vault is committed to safeguarding your operations, data, and reputation. Choose us for reliable, transparent, and cutting-edge cybersecurity services. Contact us today to fortify your digital defenses. mai puțin
Angajează pe offensiumvault
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Let's keep this short. Anything related to IT: (System/Network/DevOps/Virtualization/Wordpress/Development/Servers/Mail) I can handle them all, period. Ganesh D.Let's keep this short. Anything related to IT: (System/Network/DevOps/Virtualization/Wordpress/Development/Servers/Mail) I can handle them all, period. Ganesh D. mai puțin
Angajează pe udayarpandey2022
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Highly skilled and accomplished senior web designer/developer with over 13 years of experience in the industry. Possessing a comprehensive skill set and a deep understanding of web development technologies, I have successfully delivered numerous innovative and visually appealing websites. Proficient in HTML, CSS,...Highly skilled and accomplished senior web designer/developer with over 13 years of experience in the industry. Possessing a comprehensive skill set and a deep understanding of web development technologies, I have successfully delivered numerous innovative and visually appealing websites. Proficient in HTML, CSS, JavaScript, PHP, jQuery, Bootstrap, WordPress, Unbounce, MailChimp, Photoshop, Shopify, and Webflow, I have consistently exceeded client expectations while meeting project deadlines. My expertise lies in crafting elegant and user-friendly interfaces that enhance the user experience and drive conversions. With a keen eye for design aesthetics and a strong command of front-end development, I have created responsive websites that seamlessly adapt to various devices and screen sizes. By leveraging my advanced knowledge of HTML, CSS, and JavaScript frameworks like Bootstrap and jQuery, I have developed dynamic and interactive web applications that elevate the overall user engagement. Furthermore, my extensive experience with content management systems such as WordPress has enabled me to build robust, customizable, and scalable websites that cater to specific client requirements. I am also proficient in utilizing third-party integrations like Unbounce, MailChimp, and Shopify to enhance website functionality and optimize digital marketing campaigns. To augment my development skills, I possess a solid understanding of graphic design principles and have mastered tools like Photoshop. This enables me to create visually stunning layouts and graphics that align with the clients' brand identity and effectively communicate their message. In addition to technical expertise, I am a highly collaborative professional with excellent communication skills, allowing me to effectively collaborate with cross-functional teams and clients to ensure project success. I am adept at translating complex technical concepts into layman's terms, facilitating seamless communication and fostering a productive work environment. Overall, as a senior web designer/developer, I bring a wealth of experience, a diverse skill set, and a passion for creating exceptional web experiences. I am dedicated to delivering outstanding results and exceeding client expectations through innovative design, robust development, and meticulous attention to detail. mai puțin
Angajează pe raphaelokekeze
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Hi there, I am networking expert specialist and consultant for more than 8 years, who spend my free time to learn about new technologies in networking, security field to be always up to date. please just ping me on chat to have a short discussion on your project and i will always look for solving your tasks...Hi there, I am networking expert specialist and consultant for more than 8 years, who spend my free time to learn about new technologies in networking, security field to be always up to date. please just ping me on chat to have a short discussion on your project and i will always look for solving your tasks quickly. below is a brief on my experience: Technology Specialist: --------------------- - Can design, implment large scale networking and make exaplanation reports. - Practice on Cisco Packet Tracer, GNS-3, EVE-NG. - Excellent pracitce on VMware WorkStation, Virtual-Box - VPN (IPSEC,IKE v1 or v2 ,L2TP ,OPENVPN, DUO Authentication). - Routing Protocols (BGP, OSPF, EIGRP .. ). - Wrie Technical Reports with excellent and format. Skills and Hands on Experience: ------------------------------- - Cisco devices (routers, switches), routing protocols, IPSEC, Cisco ASA Firewall. - Fortinet Devices: FortiGate, Forti Manager, Forti Analyzer. - wireless (WLC, Access Points): CISCO, Aruba, ubiquiti. - Juniper (M7, M10, MX 480, MX 960) and SRX (300, 500). - Operating Systems: Linux servers (Ubuntu, RedHAT, Debian), windows (Windows server 2012, 2016 ..etc). Regards, Ramy mai puțin
Angajează pe ramygoda1590
