Network Administratorsพร้อมรับจ้าง
แสดงผล 177 รายการ
freelancer ที่ได้รับการสนับสนุน
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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. ย่อ
ว่าจ้าง touhidecevw
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abusayed2004 abusayed2004
$50 USD / ชม.
Ai Voice Agent, Asterisk PBX, SIP, Linux, SecurityBangladeshI am currently seeking long-term remote and on-site job opportunities. With 15 years of experience, I have worked extensively with VoIP, Asterisk, cloud technologies such as AWS and OpenStack, Server security, Vtiger CRM, Open VPN, CentOS, Ubuntu, Redhat, VoIPSwitch, Oracle DB, RHEVM, MySQL, and Linux customisation. I...I am currently seeking long-term remote and on-site job opportunities. With 15 years of experience, I have worked extensively with VoIP, Asterisk, cloud technologies such as AWS and OpenStack, Server security, Vtiger CRM, Open VPN, CentOS, Ubuntu, Redhat, VoIPSwitch, Oracle DB, RHEVM, MySQL, and Linux customisation. I am also proficient in Python and PHP scriptwriting for IVR and AGI implementation on Asterisk. I have a team for support and further development. My expertise includes: - Ai Voice Agent build and operations multi tenant platform. - Linux - Hosting Systems Administration & Monitoring - Kubernaties, IoT tech stack - Design and implementation of High-Performance SIP SBC - DevOps CI/CD - Service Optimisation - Security Hardening - VoIP, Asterisk, SMS, Dongle, and FreePBX installation, configuration, and maintenance - WebRTC SIP Phone - Infrastructure Planning - Disaster Recovery - Shell Scripting - Capacity planning, application delivery planning - Network Troubleshoot, Spanning Tree, PVST, RSTP, HSRP, RIP, BGP, EGRP, IGRP, MPLS - SAN Troubleshoot - GlusterFS, CEPH - NFS, SMB, ISCSI, SMTP - Linux performance tuning - MySQL, Oracle DB performance tuning - Laravel web application development - Web Security, Web benchmark, best practice - IPTV, Live streaming, VOD, FFmpeg - Raspberry Pi Please let me know if you have any questions or require further information. ย่อ
ว่าจ้าง abusayed2004
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farooqtahir2013 farooqtahir2013
$50 USD / ชม.
✅ Network|System|VoIP|Cloud|DevOps|Security ExpertPakistanI am Network, Cybersecutiy, VoIP and System Engineer with over 10 years of professional experience. I have a demonstrated history of working in the field information technology and services industry. I have worked with both small and enterprise-sized companies to plan, design and implement the Network...I am Network, Cybersecutiy, VoIP and System Engineer with over 10 years of professional experience. I have a demonstrated history of working in the field information technology and services industry. I have worked with both small and enterprise-sized companies to plan, design and implement the Network infrastructure. I have worked with a wide verity of vendors such as Cisco, VMware, IBM, Mikrotik, Ubiquiti, Lenovo, Fortinet, Palo Alto, Checkpoint, Pfsense and Microsoft etc. I make sure to design and recommend things based on best practices. I possess the following expertise: ✅Network administration (Routing, Switching, VPNs). ✅VOIP (FreePBX, 3CX, Vodia, Asterisk and Cisco CUCM,CME ). ✅Wireless (Cisco, Ubiquiti, Aerohive, TPlink, Mikrotik). ✅Security (Cisco ASA, Fortinet , Palo Alto, Checkpoint, Sonicwall, PFsense, opnsense). ✅Virtualization (VMware, Microsoft HyperV, Proxmox). ✅System administration (Microsoft and Linux servers.) ✅Cloud computing, dedicated servers and VPS (OVH, Google, AWS, Digital ocean etc) Looking forward to working with you. Why Choose Me? ✅24 hours availability ✅Quick response ✅100% Project Delivery ย่อ
ว่าจ้าง farooqtahir2013
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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 ย่อ
ว่าจ้าง iosifpeterfi
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I am an AWS-certified professional with over 5 years of experience specializing in backend development, DevOps engineering, and Kubernetes orchestration. My expertise lies in building scalable, secure, and efficient cloud infrastructures while integrating advanced AI/ML solutions to enhance business outcomes. ☞...I am an AWS-certified professional with over 5 years of experience specializing in backend development, DevOps engineering, and Kubernetes orchestration. My expertise lies in building scalable, secure, and efficient cloud infrastructures while integrating advanced AI/ML solutions to enhance business outcomes. ☞ Backend Development: Proficient in Node.js, Python, and PHP with hands-on experience in building serverless and containerized applications using frameworks like Serverless Framework, SAM, and SST. ☞ DevOps Expertise: Skilled in designing CI/CD pipelines, implementing Infrastructure as Code (Terraform, CloudFormation), and automating deployment workflows for high-traffic applications. ☞ Kubernetes Specialist: Extensive experience in deploying, managing, and scaling containerized applications on Kubernetes platforms like AWS EKS, GCP GKE, and Azure AKS. ☞ Security & Compliance: Strong knowledge of securing infrastructure and achieving compliance with frameworks like HIPAA, PCI-DSS, GDPR, and ISO standards. ☞ AI/ML Integration: Experience in integrating AWS AI/ML services such as Textract, Comprehend, Kendra, and Rekognition into applications for intelligent automation. Certifications: AWS Certified Solutions Architect – Associate AWS Certified Practitioner Toolkit: AWS, Terraform, Docker, Kubernetes, Jenkins, GitLab CI/CD, Python, Node.js, PHP, MySQL, PostgreSQL ..... Monitoring Tools: Prometheus, Grafana, New Relic ย่อ
ว่าจ้าง kumarashish99
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Rashid Tech Solutions is a systems-focused engineering and development practice with over 5 years of hands-on experience delivering reliable, production-ready solutions across software, cloud, automation, and embedded systems. We specialize in projects where multiple technologies must work together seamlessly —...Rashid Tech Solutions is a systems-focused engineering and development practice with over 5 years of hands-on experience delivering reliable, production-ready solutions across software, cloud, automation, and embedded systems. We specialize in projects where multiple technologies must work together seamlessly — software with hardware, cloud with automation, and logic with real-world operational constraints. Our work is driven by solid architecture, clean implementation, and solutions designed for long-term use, stability, and growth. 🔧 Core Capabilities Systems & Full-Stack Development End-to-end design and development of web platforms, backend services, APIs, dashboards, and mobile applications, built for scalability, security, and maintainability. Cloud, DevOps & Infrastructure Architecture and operations across AWS, Azure, and Google Cloud, including CI/CD pipelines, deployments, monitoring, performance optimization, and production hardening. Automation & Integrations Custom automation, workflow optimization, system integrations, bots, and backend processes to reduce manual work and improve operational reliability. Embedded Systems & Industrial Automation Development and integration of embedded systems, IoT devices, electronics, PCBs, PLCs, SCADA, and hardware–software interfaces for industrial and automation use cases. AI & Data-Driven Features Practical AI and machine-learning integrations such as computer vision, OCR, analytics, and intelligent system enhancements — applied where they deliver real, measurable value. Specialized & Custom Solutions Blockchain systems, trading tools, telephony platforms, and other domain-specific solutions when projects require deeper technical customization. 👥 Team & Delivery Model For larger or time-critical projects, I work with a small, trusted technical team, while personally managing and reviewing all work. This ensures clear communication, consistent quality, and a single point of accountability for the client. 🤝 Post-Delivery Support Delivery does not end at handover. We provide clear documentation, support, fixes, and ongoing assistance when required, ensuring systems remain stable, understandable, and easy to maintain over time. Our approach is reflected in consistent positive feedback from previous clients, who value technical ownership, clear communication, and dependable delivery. If you’re looking for a technical partner who thinks long-term and takes responsibility beyond launch, Rashid Tech Solutions is ready to support your project. ย่อ
ว่าจ้าง rashidamjad
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I am a passionate Full Stack Developer with over 8 years of experience specializing in Laravel, PHP, ReactJS, NextJS, Flutter, and Blockchain development. My expertise lies in building scalable web and mobile applications, integrating secure authentication systems, and developing blockchain-based...I am a passionate Full Stack Developer with over 8 years of experience specializing in Laravel, PHP, ReactJS, NextJS, Flutter, and Blockchain development. My expertise lies in building scalable web and mobile applications, integrating secure authentication systems, and developing blockchain-based solutions. Throughout my career, I have successfully led multiple projects, from custom CMS development to complex REST APIs, ensuring high performance, security, and seamless user experiences. I have also worked extensively with Stripe, Web3 authentication, and decentralized applications (dApps), allowing me to bridge traditional and blockchain technologies. In addition to my development skills, I am also a proficient SEO Strategy Planner and Expert. My SEO expertise encompasses both on-page and off-page optimization, including keyword research, content optimization, technical SEO, and link-building strategies. I have helped clients increase organic traffic, enhance their website visibility, and achieve top rankings on search engines. I take pride in my ability to architect efficient backend systems using Laravel, develop dynamic frontends with React and NextJS, and create cross-platform mobile apps with Flutter. My hands-on experience with Agile methodologies and team leadership enables me to manage projects efficiently while delivering top-notch results. With a deep understanding of search engine algorithms, content strategy, and web analytics, I am able to optimize websites for better search visibility and user engagement. I can also devise comprehensive SEO strategies that align with your business goals, helping to boost your online presence. I am eager to bring my technical expertise and problem-solving mindset to your team. I look forward to the opportunity to discuss how my skills in both full stack development and SEO strategy can contribute to your project’s success. ย่อ
ว่าจ้าง irazon15
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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. ย่อ
ว่าจ้าง AwaisChaudhry
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Professional Summary I am a results-driven professional passionate about web design, AI integration, e-commerce, programming, marketing, and networking. My Team and I are dedicated and committed to deliver innovative and efficient solutions tailored to clients' needs. Top Skills and Strengths: ✅ Web Design :...Professional Summary I am a results-driven professional passionate about web design, AI integration, e-commerce, programming, marketing, and networking. My Team and I are dedicated and committed to deliver innovative and efficient solutions tailored to clients' needs. Top Skills and Strengths: ✅ Web Design : Creating responsive, user-friendly websites using WordPress, Elementor, & Tailwind CSS. ✅ Game Development: Design immersive 2D/3D using industry-std engines and interactive scripting. ✅ AI Integration: We enhance business operations, streamline processes, & improve user experiences. ✅ E-commerce: Set up,customizing WooCommerce ,Shopify for optimized product management & sales. ✅ Programming Expertise: Developing data-driven applications using HTML, CSS, JavaScript, and Python. ✅ Marketing & Lead Generation: Crafting strategies to boost engagement,conversions, CRM solutions. ✅ Networking & IT Solutions: Managing and optimizing IT infrastructures for seamless connectivity. ย่อ
ว่าจ้าง XRProConnect
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We are a Canadian-Ukrainian team of highly professional IT specialists (software developers, designers, system administrators and Internet marketers) with more than 20 years expertise. OUR MAIN SPECIALIZATIONS: 1) WEB DEVELOPMENT & SOFTWARE DEVELOPMENT 1.1) FRONT-END: HTML, HTML5, CSS3, Bootstrap, TailwindCSS ...We are a Canadian-Ukrainian team of highly professional IT specialists (software developers, designers, system administrators and Internet marketers) with more than 20 years expertise. OUR MAIN SPECIALIZATIONS: 1) WEB DEVELOPMENT & SOFTWARE DEVELOPMENT 1.1) FRONT-END: HTML, HTML5, CSS3, Bootstrap, TailwindCSS 1.2) JAVASCRIPT: JavaScript, ES6+, Typescript, Node.js, MEAN, MERN, MEVN, Angular, React.js, Vue.js, Nuxt.js, Next.js, Gatsby.js, jQuery 1.3) BACK-END 1.3.1) LAMP (Linux, Apache, MySQL, PHP) including Symfony, Laravel, Yii, Zend, CodeIgniter, CakePHP 1.3.2) Python (Python, Django, Flask, FastAPI) 1.3.3) .NET stack technologies (C#, ASP.NET, .NET Core) 1.4) OPEN SOURCE SOLUTIONS 1.4.1) E-commerce Platforms: Shopify, Magento, WooCommerce, Prestashop, OpenCart, BigCommerce, Shopware, osCommerce 1.4.2) CMS: WordPress, Drupal, Joomla, TYPO3 etc. 1.4.3) CRM: SuiteCRM, SugarCRM 2) MOBILE DEVELOPMENT 2.1) Android native development: Java, Kotlin 2.2) iOS native development: Swift, Objective-C 2.3) Cross platform development: Flutter, React Native, Ionic 3) DESIGN 3.1) Website Design (UI (User Interface), UX (User Experience) etc.) 3.2) Graphic Design (Creative Design, Digital Design, Advertisement Design etc.) 3.3) Corporate Identity (Brand Boooks, Business Cards, Logos, LetterHeads etc.) 4) INTERNET MARKETING 4.1) Social Media Marketing (Linkedin, Xing, Facebook, YouTube, Instagram etc.) 4.2) SEO (SEO Copywriting, SEO Auditing, White Hat SEO) 4.3) PPC Marketing (Google Adwords, Google Ads, Facebook Ads, YouTube Ads, Instagram Ads etc.) 4.4) Email Marketing 5) MANAGED SERVICES 5.1) 24/7 TECHNICAL SUPPORT 5.2) SYSTEM ADMINISTRATION SERVICES Our team of high qualified System Administrators have huge experience with technologies covering: - different distributions of OS Linux, Unix and MS Windows Server systems; - different types of virtualization (ProxMox, Virtuozzo, OpenVZ, KVM, XEN, VMware, Hyper-V); - VPN/DNS/IPTables/Firewalls/web servers/mail servers configuration and tuning etc.; - cloud solutions (AWS, MS Azure, Google Cloud, Alibaba Cloud, OVHcloud, DigitalOcean, Linode etc.). 6) HOSTING SERVICES provided by our hosting subdivision under trade mark "TanHost" 6.1) Cloud based solutions (e.g. configuration and technical support of Private Clouds); 6.2) Сollocation services, the providing for rent dedicated and VPS/VDS (virtual servers); 6.3) Shared Hosting; 6.4) Domain names registration services; 6.5) SSL Certificates. 7) EMBEDDED SYSTEMS 7.1) Embedded software development 7.2) Internet of Things (IoT) 7.3) Microcontrollers programming 7.4) Arduino microcontrollers programming OUR CREDO: Reputation – is above anything else! We help our customers to grow success and we grow together with our customers! We are flexible to meet our clients' needs. We make it simple... ย่อ
ว่าจ้าง tangramua
