System Administrators Til ansættelse
Viser 75 resultater
Sponsorerede Freelancere
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engkarimismail engkarimismail
$50 USD / timen
✅ 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 mindre
Ansæt engkarimismail
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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 mindre
Ansæt iosifpeterfi
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بِسْمِ اللهِ الرَّحْمٰنِ الرَّحِيْمِ In the name of ALLAH, the Most Gracious , the Most Merciful. _______________________________________________________________ I’m an experienced IT professional with a strong background in server and network administration, cloud infrastructure, and systems integration. Over the...بِسْمِ اللهِ الرَّحْمٰنِ الرَّحِيْمِ In the name of ALLAH, the Most Gracious , the Most Merciful. _______________________________________________________________ I’m an experienced IT professional with a strong background in server and network administration, cloud infrastructure, and systems integration. Over the years, I’ve worked across diverse environments — including Windows Server, AWS, Azure AD, and Office 365 — helping organizations streamline their IT operations, strengthen security, and modernize their digital infrastructure. My approach combines technical expertise with practical problem-solving. Whether it’s migrating hundreds of mailboxes, optimizing DNS and firewall configurations, or managing hybrid cloud systems, I focus on delivering reliable, secure, and seamless results. Core Expertise Email Migrations- Migrations between Office 365, Google Workspace, Zoho, GoDaddy, and cPanel Tenant-to-tenant and domain-based migrations IMAP and POP-based migrations Hybrid migration planning (on-premise to cloud) Troubleshooting mail flow, delivery issues, and MX/DNS records Ensuring seamless user transitions with zero data loss Cloud & Email Services- Email setup and management: Office 365, Google Workspace, Zoho Mail, GoDaddy AWS: EC2, VPC, SES, IAM, Route 53, CloudWatch, SNS, VPN Azure AD: Identity Management, SSO, SAML, IDP Google Cloud Platform integration DNS & Security DNS record management: SPF, DKIM, DMARC, CNAME, MX, A SSL certificate installation and troubleshooting Firewall configuration: FortiGate (Web Filter, App Control, LDAP, SSO) Server & Directory Services- Windows Server (2008–2024) and Active Directory administration Group Policy, LDAP, RADIUS, and Domain Controllers Server migration, backup & restore, and RAID management PowerShell scripting, WDS, and WSUS deployment Virtualization & Automation- Virtualization platforms: Microsoft Hyper-V, VMware ESXi, vCenter Scripting & automation: PowerShell, Bash File & Web Services- File servers: IIS FTP, FileZilla, ProFTPD, Samba Web servers: Apache, NGINX, Microsoft IIS Networking & Support- Network administration and troubleshooting Site-to-site VPN and secure connectivity Remote technical support for diverse IT systems. I take pride in delivering dependable, secure, and efficient IT solutions that help businesses operate smoothly and confidently. My goal is always to combine strong technical expertise with a people-first approach, ensuring every project — from migration to automation — creates real value for the organization. mindre
Ansæt zulqrn
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Web ERPs: We create customized Web Erps for all kinds of business. Logistic ERPs. Financial ERPs. Sales ERPs, Marketing ERPs etc. API Integrations. We do all kinds of api Integrations, Payment gateways, Couriers, Stocks etc., Experts in JSON, XML, APIs, Code Hackers/ Ethical Hacker / Reverse Engineering...Web ERPs: We create customized Web Erps for all kinds of business. Logistic ERPs. Financial ERPs. Sales ERPs, Marketing ERPs etc. API Integrations. We do all kinds of api Integrations, Payment gateways, Couriers, Stocks etc., Experts in JSON, XML, APIs, Code Hackers/ Ethical Hacker / Reverse Engineering Expert/ Vulnerability tester. Experts in Data Mining/Web Scraping Have over 10 years of experience in data mining/ Web scrapping. Tell us your source and we will we can do it for you, Expertise in data analytics of large sized data..99% Data Accuracy. Duplicate finder. etc., You can also ask output data into a particular format or into database Web Development We are professional web developers having expertise in all kinds of eCommerce developments/ website developments / php mysql customize projects mindre
Ansæt raminde
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Bharat and his team are a dynamic and versatile group of technology professionals with a proven track record in developing cutting-edge Artificial Intelligence (AI) solutions, crafting innovative WordPress plugins, and managing Linux-based environments. Combining technical expertise with a creative approach, Bharat...Bharat and his team are a dynamic and versatile group of technology professionals with a proven track record in developing cutting-edge Artificial Intelligence (AI) solutions, crafting innovative WordPress plugins, and managing Linux-based environments. Combining technical expertise with a creative approach, Bharat and his team bridge the gap between advanced machine learning applications, user-focused web development, and robust system administration. In the realm of AI, Bharat and his team excel in designing, implementing, and deploying intelligent systems to solve complex real-world problems. Their portfolio spans natural language processing, computer vision, predictive analytics, and automation, showcasing their expertise in leveraging AI to deliver impactful results. They are proficient in Python, TensorFlow, and PyTorch and have a deep understanding of data-driven methodologies and algorithm optimization. Additionally, Bharat and his team are well-versed in Linux systems, utilizing the platform to optimize server performance, enhance security, and streamline deployments. Their expertise in Linux complements their AI and web development skills, ensuring seamless integration across diverse technologies. As strong communicators and collaborative team players, Bharat and his team excel at engaging with clients to understand their needs and translating business challenges into actionable technical solutions. Their passion for innovation and commitment to excellence makes them a valuable asset to any team or organization seeking to harness the power of AI, WordPress, and Linux. mindre
Ansæt Shrutibimpl
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I bring over 15 years of extensive experience in the fields of system administration and DevOps, making me a seasoned professional in managing and optimizing IT infrastructures. With a strong foundation in virtualization technologies, I excel in creating efficient and scalable virtualized environments. My expertise...I bring over 15 years of extensive experience in the fields of system administration and DevOps, making me a seasoned professional in managing and optimizing IT infrastructures. With a strong foundation in virtualization technologies, I excel in creating efficient and scalable virtualized environments. My expertise extends to a wide range of Linux systems, and I am well-versed in handling various distributions, ensuring their stability, security, and performance. I have a proven track record of successfully deploying web applications, guaranteeing smooth and reliable online experiences for users. One of my core strengths lies in managing system updates and applying security patches promptly, reducing vulnerabilities and minimizing downtime. My commitment to network security is unwavering, and I implement robust measures to protect data and maintain the integrity of systems. Furthermore, my proficiency in Cisco networking solutions allows me to design, configure, and troubleshoot complex network infrastructures, ensuring seamless connectivity and optimal performance. Additionally, I have a solid understanding of <b> HPE (Hewlett Packard Enterprise) </b>equipment, enabling me to efficiently manage and maintain these devices to meet organizational needs. With my extensive knowledge, practical experience, and dedication to staying updated with the latest industry trends, I am well-equipped to contribute significantly to any organization's IT operations, ensuring they run smoothly, securely, and efficiently. mindre
Ansæt rupa37
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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 mindre
Ansæt ramygoda1590
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Hello! I’m Mehrab Ahmed Saurav, a Google-certified UX Specialist and seasoned developer with a proven track record in web, mobile, and software solutions. I currently serve as Senior Web Developer at SW HR Consulting LLC, and bring over a decade of hands-on experience to every project. At My Profile, I stand by a...Hello! I’m Mehrab Ahmed Saurav, a Google-certified UX Specialist and seasoned developer with a proven track record in web, mobile, and software solutions. I currently serve as Senior Web Developer at SW HR Consulting LLC, and bring over a decade of hands-on experience to every project. At My Profile, I stand by a simple but powerful philosophy: NO ADVANCE OR UPFRONT PAYMENT. PAY ONLY WHEN YOU ARE 100% SATISFIED Why Work With Me? • No Advance Payment Required. I believe in earning your trust through results — pay only when you are completely satisfied. • 100% Satisfaction Guarantee. Your success is my success. I don’t stop until the job is done right. • On-Time Delivery. I respect your time and deadlines — projects are delivered on schedule, every time. • 24/7 Client Support. I am always just a message away — ready to assist, update, or troubleshoot around the clock. • Secure, Transparent Transactions. My Core Expertise Web & Software Development • Front-End: HTML, CSS, JavaScript, jQuery, Tailwind, Bootstrap • Back-End: PHP, MySQL, Laravel, Node.js • CMS & Platforms: WordPress, WooCommerce, Shopify • Custom Web Applications: Admin panels, dashboards, analytics platforms Blockchain, Crypto & Web3 Development • Smart Contract Development (Solidity / EVM Chains) • Token Creation (ERC-20, BEP-20, SPL for Solana) • Launchpad Integrations (Pump.fun, Raydium, Uniswap, etc.) • Web3 Wallet Integration (Metamask, Phantom, WalletConnect) • NFT Minting Sites & Marketplaces • Crypto Chart Bots, Airdrop Scripts, and Automated Trading Tools Bulk Communication Solutions • Custom Bulk Email & SMS Sender tools • Integration with APIs like Twilio, SMTP, SendGrid Digital Marketing & SEO • Full-spectrum White Hat SEO (on-page, off-page, technical) • SMM Campaigns to elevate brand presence (Facebook, IG, TikTok) Automation & Scripting • Web Scraping, Data Mining, and Bot Development using Python • Workflow automation for lead gen, reporting, and CRMs IoT & Embedded Systems • Projects using Arduino, Raspberry Pi, and Python • Smart sensors, remote automation, and edge computing solutions Mobile App Development • Platforms: Android & iOS (Native and Cross-Platform) • Frameworks: Flutter, React Native, Ionic • API Integration & UI/UX Design Budget-Friendly, High-Quality Work Warm regards, Mehrab Ahmed Saurav UX Specialist | Full Stack Developer | Blockchain Architect mindre
Ansæt yieoyo
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Hello, I can start immediately and can dedicate to your project full-time, 40+ hrs/week during your working time. I've 8+ years of experiences and specialized in C#, VB, .Net, Devexpress, JavaScript, Node.js, React, Next.js, Mobx, GraphQL, Neo4j, Tailwind CSS, SCSS, GPT, TypeScript, API integration, etc. I'm an...Hello, I can start immediately and can dedicate to your project full-time, 40+ hrs/week during your working time. I've 8+ years of experiences and specialized in C#, VB, .Net, Devexpress, JavaScript, Node.js, React, Next.js, Mobx, GraphQL, Neo4j, Tailwind CSS, SCSS, GPT, TypeScript, API integration, etc. I'm an excellent English speaker/communicator with good collaboration experience. Looking forward to discussing more details. Best regards. Emile. mindre
Ansæt emilesd617
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expertshopify expertshopify
$25 USD / timen
DevOps | AWS | Linux Server | Shopify | SecurityBangladesh🚀 Welcome to My Profile! I’m a Shopify & WordPress Expert and Linux Server Administrator delivering end-to-end solutions for eCommerce and high-traffic websites. With 5+ years of experience and 400+ Shopify stores shipped, I’m a Shopify Certified Developer and an Enlisted Shopify Partner. Beyond development, I...🚀 Welcome to My Profile! I’m a Shopify & WordPress Expert and Linux Server Administrator delivering end-to-end solutions for eCommerce and high-traffic websites. With 5+ years of experience and 400+ Shopify stores shipped, I’m a Shopify Certified Developer and an Enlisted Shopify Partner. Beyond development, I handle server management, control panels (Plesk, cPanel, VirtualMin/Webmin), and DevOps to keep your stack fast, secure, and scalable. 🛒 Shopify & WordPress Services Shopify store design & development Custom Shopify themes from Figma/PSD/AI Payment gateway integration App installation & configuration 3rd-party app/API integrations (Dropshipping, POD, etc.) SEO & speed optimization (Shopify & WordPress) WordPress site design & development Bug fixing & troubleshooting ⚙️ Linux Server, Control Panels & DevOps Linux setup & optimization (Ubuntu, CentOS, Debian) Plesk, cPanel, VirtualMin/Webmin configuration & management SSL (Let’s Encrypt & commercial) Firewall & security hardening (UFW, Fail2ban, SSH) Apache/Nginx configuration & performance tuning MySQL management & backup strategies Cron jobs & automation Cloudflare & DNS management Zero-downtime server migrations & transfers Monitoring & emergency recovery 🧩 Version Control & Collaboration (Git & GitHub) Git workflow (feature branches, PRs, code reviews) GitHub project management (issues, milestones, wikis) Release management & changelogs Team-friendly documentation and handover 🌟 Why Work With Me? I provide one partner for the full stack—from building a high-converting store to securing, deploying, and maintaining the servers behind it. Whether you’re launching, scaling, or migrating, I’ll keep your business fast, secure, and reliable. 👉 Let’s build something your customers—and your servers—will love. mindre
Ansæt expertshopify
