Computer Security Consultants para contratar
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Freelancers patrocinados
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engkarimismail engkarimismail
$50 USD / hora
✅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 menos
Contratar engkarimismail
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Programación en C, Seguridad informática, Aprendizaje Automático (ML), Parallels Automation, Integración de APII am captivated by the limitless possibilities that the world of AI holds. Exploring the intricacies of machine learning algorithms, neural networks, and data-driven problem solving has ignited a deep passion within me. Throughout my academic journey, I have embraced the challenges posed by this dynamic field, eagerly...I am captivated by the limitless possibilities that the world of AI holds. Exploring the intricacies of machine learning algorithms, neural networks, and data-driven problem solving has ignited a deep passion within me. Throughout my academic journey, I have embraced the challenges posed by this dynamic field, eagerly delving into projects that not only expand my technical proficiency but also drive my determination to contribute meaningfully to the realm of AI. menos
Contratar abdullaht119
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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. menos
Contratar 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. menos
Contratar ahad47
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AlexandrGergel AlexandrGergel
$48 USD / hora
15 Years of Windows/Linux Kernel / AOSP / FirmwareUkraineExperienced embedded system engineer with a passion for bringing products to life. With more than 15 years of experience in the industry, has a proven track record in firmware development, hardware integration, and product launches. Driven by a desire to solve problems and create value for customers. ☑️...Experienced embedded system engineer with a passion for bringing products to life. With more than 15 years of experience in the industry, has a proven track record in firmware development, hardware integration, and product launches. Driven by a desire to solve problems and create value for customers. ☑️ language Assembly, C Programming, C++, Python, Shell script, Makefile ☑️ System Programming Real-time Operaing systems, Embedded Linux, Linux device driver, Windows device driver ☑️ High level programming Win32, Linux user space, Android NDK, Qt, MFC ☑️ Firmware Programming PIC microcontroller, ATMEL, ATMEGA, STM32, Nordic, ESP32, Arduino, Raspberry PI ☑️ Embedded Communication protocol I2C, Serial Peripheral Interface(SPI), UART, USB, GPIO, Controller Area Network(CAN), Recommended Standard 232(RS232), one-wire, Recommend Standard 485(RS485), Bluetooth ☑️ Hardware design Circuit design, schematic design, PCB design, Multi-layer PCB design, Electronic design, Altium designer ☑️ Debugging JTAG, GDB, Print ☑️ Reversing IDA, OllyDbg, 2-layer PCB reversing ☑️ Security Executable file behavior analyzing, Executable file static analyzing Website security analyzing, Troubleshoot PC security level menos
Contratar AlexandrGergel
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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 menos
Contratar iosifpeterfi
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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. menos
Contratar brayanstiven5
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Hello. I am Sohail Jamil and I am a Senior software developer with 7 years of professional experience. I am here to assist you with your project with my skills What do I offer? - Mobile Application Development - Flutter App Development - React native - Native Android - iOS Application - Web...Hello. I am Sohail Jamil and I am a Senior software developer with 7 years of professional experience. I am here to assist you with your project with my skills What do I offer? - Mobile Application Development - Flutter App Development - React native - Native Android - iOS Application - Web Development - MERN Stack / MEAN Stack - CMS ( wordpress Shopify durpal etc) - Custom web portal (PHP etc) - APIs development and integration - SEO - SEO /SME/ SMO/ASO - Digital marketing (FB ads/ Google ads) - Google analytics - Desktop software development - .net - asp .net - C# - APIs development and integration - Python development - Flask Web App - Machine learning - Web scraping - Crawling - API and Web Development with Flask/Pyramid/Django - Other Skills - Knowledge of many database technologies many SQL databases as well as NO-SQL - Knowledge of various data storage formats: JSON, XML, CSV, EXCEL - Experience with many popular APIs as Amazon, Discord, Twilio, Slack, Twitter and many more My top qualities as a freelancer are: - Trying to always deliver the project ahead of the deadline - Working until all client's requirements are satisfied - Quick responses and often updates on the project Click the Hire Me button to message me or if you see my bid on your project click on the chat button to get started. king Regards Sohail Jamil menos
Contratar Sohail748
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With over 15 years of expertise, I deliver top-tier technical support across diverse channels, including phone, chat, email, video calls, and remote desktop assistance. I specialize in helpdesk technical support tasks, resolving IT tickets, and tackling various technical challenges, ensuring smooth operations for your...With over 15 years of expertise, I deliver top-tier technical support across diverse channels, including phone, chat, email, video calls, and remote desktop assistance. I specialize in helpdesk technical support tasks, resolving IT tickets, and tackling various technical challenges, ensuring smooth operations for your business. My proficiency extends to Google Workspace, where I offer comprehensive services encompassing technical support, consultation, and seamless migration. I excel in troubleshooting email delivery issues and implementing robust email authentication protocols (MX, SPF, DKIM, DMARC) to bolster your email security. My skillset covers a broad spectrum of IT domains, including: Windows IT Administration (Tier 2 & 3): Expertise in Active Directory, Domain Controllers, Migrations/Upgrades, Group Policies (GPO), and Custom Solutions. Microsoft 365/O365 Cloud: Proficiency in Microsoft Authenticator and Office 365 Administration, including Outlook, Teams, Word, and Excel. Microsoft Exchange Administration: Extensive experience in troubleshooting email server and message issues. Windows 10, Windows 11 Technical Support: Comprehensive support for Windows operating systems, delivered remotely or via phone. Microsoft Azure AD and Hybrid Cloud/On-prem Domain Controllers: Adept at resolving complex issues in these environments. Debugging and Fixing Broken Automated Processes: I can efficiently address challenges with web servers, mail services, operating systems, and more. Remote Servicing and Setup: Skilled in configuring Wireless, Printers, User Account Access, and Mail Accounts. Virtual Machines: Proficiency in Microsoft Azure, Microsoft Hyper-V, VMWare Player, VMWare Workstation, ESXi/vSphere, including migrations, troubleshooting, repair, and upgrades (P2V/V2P/V2V). Cloud Services: Expertise in Amazon Web Services (AWS), Microsoft Azure, Google Cloud Platform (GCP), Alibaba Cloud, Oracle Cloud, Rackspace Cloud, and VMWare. Domain Hosting & Migration: Experience in SSL Installation and Configuration, DNS Setup, MX, SPF, DKIM, DMARC, and Cloudways setup. Advanced WIFI & Wireless Networking: Skilled in network enhancements, troubleshooting, security upgrades, and new features. Data Recovery: Capable of file recovery, drive and RAID failure resolution, and data reconstruction. Printing and Scanning: Comprehensive support for commercial-grade printing and scanning machines. Windows Domain Customization: Proficient in scripting and automation for tailored solutions. Virus Removal: Efficiently handle virus removal to ensure system security. I am dedicated to providing reliable solutions and solving any IT-related challenges you may encounter. Thank you for considering my services; I'm here to support your IT needs comprehensively. menos
Contratar Habibkhan82
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I'm a freelancer with a strong background in web research, web scrapping, data entry, and eCommerce. With over 5 years of experience, I have the knowledge and expertise to help you with your projects. My attention to detail and accuracy make me a reliable source for any task that requires researching, collecting, and...I'm a freelancer with a strong background in web research, web scrapping, data entry, and eCommerce. With over 5 years of experience, I have the knowledge and expertise to help you with your projects. My attention to detail and accuracy make me a reliable source for any task that requires researching, collecting, and entering data. My services are available to you 24/7 to get the job done quickly and accurately. I have the skills and experience to ensure that your projects are completed on time and within the budget. Services and Skills List ✔ Product Searching ✔ Product Listing ✔ Web Development - Shopify, Bigcommerce, WordPress, Woocommerce, E-Commerce, eBay, Opencart, Etc. ✔ PDF into Fillable Forms ✔ PDF, Word, Excel, PowerPoint ✔ Data entry ✔ Typing ✔ Internet research ✔ Data mining ✔ Web research ✔ Web scraping ✔ Lead generation ✔ Bookkeeping ✔ Social Media Management menos
Contratar azfatima512
