展示 61 结果
高级威客
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雇用 sktricks
👋 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 收起 -
雇用 AlexVydrin
Hi, I'm Oleksii a Senior Web & Mobile Developer with over 15 years of experience building fast, scalable, and user-centered applications for startups and enterprises. I specialize in crafting modern digital products that work seamlessly across platforms from responsive web apps to high-performance mobile solutions....Hi, I'm Oleksii a Senior Web & Mobile Developer with over 15 years of experience building fast, scalable, and user-centered applications for startups and enterprises. I specialize in crafting modern digital products that work seamlessly across platforms from responsive web apps to high-performance mobile solutions. My focus is always on clean architecture, maintainable code, and delivering an exceptional user experience. Whether you need a complete product built from the ground up, a CMS-powered website, or a cross-platform mobile app, I bring both technical depth and a practical, results-driven mindset to every project. Core Skills & Expertise - Frontend: React, Next.js, Flutter, React Native - Backend: Node.js, Express, REST, GraphQL, Firebase - CMS & Web Platforms: WordPress, Strapi, Sanity, headless CMS integrations - Mobile: Android (Kotlin), iOS (Swift), Flutter cross-platform apps - Cloud & DevOps: AWS, Google Cloud, Vercel, Netlify, CI/CD pipelines - Other Expertise: API integrations, real-time features, authentication, testing & optimization If youre looking for a reliable engineer who can handle both web and mobile development with precision, scalability, and great communication Id be glad to help bring your project to life. 收起 -
雇用 Manish502
Bhavnesh Sharma – Senior DevOps & Cloud Engineer | Linux Expert ★ 6+ Years of Real-World DevOps & Infrastructure Experience Networking, Security ★ Fast, Secure, Scalable Solutions | 100% Client Satisfaction I help businesses build, deploy, and scale modern applications with battle-tested DevOps practices,...Bhavnesh Sharma – Senior DevOps & Cloud Engineer | Linux Expert ★ 6+ Years of Real-World DevOps & Infrastructure Experience Networking, Security ★ Fast, Secure, Scalable Solutions | 100% Client Satisfaction I help businesses build, deploy, and scale modern applications with battle-tested DevOps practices, rock-solid Linux systems, and multi-cloud expertise. Core DevOps & Cloud Skills: • CI/CD Pipelines: GitHub Actions, GitLab CI, Jenkins, CircleCI, ArgoCD • Infrastructure as Code: Terraform, Ansible, Pulumi, CloudFormation • Containerization & Orchestration: Docker, Docker Compose, Kubernetes (EKS, GKE, AKS, self-hosted), Helm • Monitoring & Observability: Prometheus, Grafana, Loki, ELK/EFK Stack, CloudWatch, Datadog • Cloud Platforms: AWS (EC2, ECS/EKS, Lambda, RDS, S3, CloudFront, Route53), GCP, Azure, DigitalOcean, Linode, Hetzner, OVH • Linux Mastery: Ubuntu, Debian, AlmaLinux, Rocky Linux, CentOS Stream – hardening, performance tuning & troubleshooting Additional Expertise: • Web & Application Servers: Nginx, Apache, OpenLiteSpeed, Tomcat, Caddy • Databases: MySQL/MariaDB, PostgreSQL, Redis, MongoDB, DynamoDB • Security: Let’s Encrypt, WAF (Cloudflare, ModSecurity), CSF, Fail2ban, iptables/nftables, Vault • Mail & Collaboration: Postfix/Dovecot, Zimbra, iRedMail, Amazon SES • Control Panels: cPanel/WHM, Plesk, CyberPanel, Webmin, HestiaCP • Streaming & Real-time: RTMP/Nginx, Wowza, BigBlueButton, Ant Media • VPN & Networking: OpenVPN, WireGuard, StrongSwan, Site-to-Site VPN, Tailscale I specialize in: ✔ Migrating legacy apps to modern cloud-native architectures ✔ Automating everything (IaC + CI/CD) so you never touch servers manually again ✔ Cost optimization & high-availability setups ✔ Fixing broken servers, performance issues, and security breaches – fast Passionate about clean code, automation-first mindset, and delivering infrastructure that “just works” 24/7. Available for: • One-time fixes & consultations • Long-term DevOps retainers • Full project deliveries (from scratch or rescue missions) Let’s turn your infrastructure headaches into a competitive advantage. Message me today!! 收起 -
雇用 ServerOK
I have 20 years of experience in web hosting, managing RHEL, CentOS, CloudLinux, Ubuntu, Debian, FreeBSD, and Windows Servers. I am online from UTC/GMT 03:00 to 07:00 and 16:00 to 20:30. * Linux - Ubuntu/Debian/CentOS/RHEL/Fedora/FreeBSD * Azure/Amazon AWS/Google Cloud * Nginx/Apache/Lighttpd/LiteSpeed * VPS -...I have 20 years of experience in web hosting, managing RHEL, CentOS, CloudLinux, Ubuntu, Debian, FreeBSD, and Windows Servers. I am online from UTC/GMT 03:00 to 07:00 and 16:00 to 20:30. * Linux - Ubuntu/Debian/CentOS/RHEL/Fedora/FreeBSD * Azure/Amazon AWS/Google Cloud * Nginx/Apache/Lighttpd/LiteSpeed * VPS - OpenVZ/KVM/Xen/Hyper-V/SolusVM/ProxMox * Docker/RancherOS * Linux/Cpanel Server Setup * Server Security - csf/maldet * PHP - Script Installation/Custom coding/Laravel * Ffmpeg/Youtube Clone installation * WHMCS Installation * OpenAI, Gemini, Claude, Deepseek, Ollama, Local LLM, OpenClaw Listed on FreeLancer Security Hall Of Fame - Yujin Boby (@serverokin) https://www.freelancer.com/about/security/hall-of-fame 收起 -
雇用 armanmohammad
Linux Server Administrator | VPS Setup | WordPress Security Expert I help website owners and hosting companies fix Linux server, VPS, and WordPress issues quickly, securely, and permanently. With 132+ five-star reviews, I specialize in malware removal, VPS setup, server security, and troubleshooting critical website...Linux Server Administrator | VPS Setup | WordPress Security Expert I help website owners and hosting companies fix Linux server, VPS, and WordPress issues quickly, securely, and permanently. With 132+ five-star reviews, I specialize in malware removal, VPS setup, server security, and troubleshooting critical website and server problems. My services include: • WordPress malware removal and cleanup • VPS setup and optimization (AWS, DigitalOcean, Contabo, Vultr, Linode) • cPanel / WHM / CyberPanel / Plesk server management • Website migration (zero downtime guaranteed) • Server security hardening and firewall configuration • Fix website errors (500, 502, 503, SSL, DNS, database issues) • Server performance optimization and resource tuning • Server troubleshooting and emergency fixes Why clients hire me: • 132+ Five-Star Reviews • Fast response and quick problem resolution • Professional and reliable service • Long-term server support available • Strong experience with Linux server environments I focus on delivering secure, stable, and high-performance server solutions. I am available and ready to start immediately. 收起 -
雇用 najibe1
Hi there! I'm an experienced IT professional with over 20 years in the industry, specializing in system administration, virtualization, and cloud technologies. I hold multiple certifications, including: - Linux Certified Professional (LPI 101, 102, 103) - VMware Certified Professional (Versions 4 through...Hi there! I'm an experienced IT professional with over 20 years in the industry, specializing in system administration, virtualization, and cloud technologies. I hold multiple certifications, including: - Linux Certified Professional (LPI 101, 102, 103) - VMware Certified Professional (Versions 4 through 7) - Microsoft Certified Systems Administrator/Engineer (2003–2019) - Microsoft Azure Administrator Associate (AZ-104) I bring deep technical expertise and a proven track record of delivering reliable, secure, and scalable IT solutions. 收起 -
雇用 osmanbsd
AWS Certified Solutions Architect – Associate cPanel & WHM System Administrator I Oracle Certified Professional for Solaris 10 CCNA Protocols/Technologies -------------------------------------- IPV4, IPV6, TCP, UDP, ICMP, SMTP, POP3, IMAP4, SNMP, ARP, DHCP, BOOTP, FTP, RADIUS, NFS, RSYNC, ISCSI, SAN, NAT, STP, ISL,...AWS Certified Solutions Architect – Associate cPanel & WHM System Administrator I Oracle Certified Professional for Solaris 10 CCNA Protocols/Technologies -------------------------------------- IPV4, IPV6, TCP, UDP, ICMP, SMTP, POP3, IMAP4, SNMP, ARP, DHCP, BOOTP, FTP, RADIUS, NFS, RSYNC, ISCSI, SAN, NAT, STP, ISL, 802.1Q, Ethernet 802.3 802.2, Ether channel, PPP, HDLC, Frame Relay, ATM, IMA, PPPoE, BGP v4, Net-Flow, WCCP, E-1, STM-1 Linux and Unix Type Operating Systems --------------------------------------------------------------- CentOS, Alma Linux, CloudLinux, Ubuntu, Debian, Sun Solaris 8, 9, 10 (Sparc and Intel) FreeBSD 4.x - 8.x OpenBSD Cloud / Amazon AWS Technologies --------------------------------------------------------- S3, EC2, VPC, RDS, Autoscaling, IAM, ELB/NLB, EFS, Lightsail, SES, WorkMail, Cloudfront, Snowball, SnowballEdge, DataSync Webhosting Control Panels / Software ------------------------------------------------------------- Cpanel/WHM, Plesk, CyberPanel Apache, Nginx, lightspeed, php-fpm Services Platforms ------------------------------ Cloudflare, Rackspace, Sendgrid, Brevo/SendinBlue, Mailgun, Godaddy, namecheap, Hostgator, namesilo, Ongage, Active Campaign, Google Workspace, Microsoft365, Squarespace, Wix, Ongage, Zoho, Klaviyo, customer.io Email Marketing Frontends ------------------------------------------- Mailwizz, Acelle Mail, Mumara, Mautic, Interspire, Octecth Oempro, 12all/Active Campaign SMTP Servers ----------------------- Postfix, Qmail, Exim, PowerMTA, KumoMTA, OpenDKIM, MailCow Virtualization / Containers ------------------------------------------ VMWare ESXi, VirtualBox, Citrix XEN Server 5.5, Citrix XEN App 5 / Presentation Server, Solaris zones, Open VZ, XEN Opensource, Docker Web/Scripting/Programming Languages ----------------------------------------------------------------- Perl, Bash shell, PHP, AWK, HTML, CGI, SQL, TSQL, Java 收起 -
雇用 toriquldev123
Toriqul Global Solutions is a professional web design and development company dedicated to building modern, high-performance, and user-friendly digital solutions. Founded by Engineer Md. Toriqul Islam, a Computer Science & Engineering graduate from RUET, the company brings over 10 years of experience in delivering...Toriqul Global Solutions is a professional web design and development company dedicated to building modern, high-performance, and user-friendly digital solutions. Founded by Engineer Md. Toriqul Islam, a Computer Science & Engineering graduate from RUET, the company brings over 10 years of experience in delivering scalable and visually appealing websites. Web Design & development: We are a full-stack web developer with more than 10 years of experience. Our design approach is always Modern and simple, which attracts people towards it. We have built websites for a wide variety of industries. We have worked with a lot of companies and built astonishing websites. All Clients have good reviews about me. Client Satisfaction is my first Priority. Technologies We Use: Custom Websites Development Using ======>Full Stack Development. 1. HTML5 2. CSS3 3. Bootstrap4 4. jQuery 5. JavaScript 6. Angular JS 7. React JS 8. Node JS 9. WordPress 10. PHP 11. Ruby on Rails 12. MYSQL 13. Laravel 14. .Net 15. CodeIgniter 16. React Native 17. SQL / MySQL 18. Mobile app development 19. Python 20. MongoDB and many other skills Why Choose Us: * Modern, clean, and user-focused design approach * Fully responsive across all devices * Scalable and reusable code structure * Clean, optimized, and well-documented code * On-time delivery with strict commitment to deadlines * Clear and professional communication * 100% client satisfaction is our priority We have successfully worked with clients across different industries, delivering high-quality websites that meet both business goals and user expectations. Let’s Build Something Great Together. Contact us today to discuss your project and turn your ideas into reality. Best Regards, Toriqul Global Solutions 收起 -
雇用 arfharwinder
⚡ Preferred Freelancer | ⚡ 14+ Years Experience in Web Security and WordPress Hello! I am Harwinder Kumar, a seasoned professional specializing in comprehensive Web Security and WordPress. I offer services in Malware Removal, Virus Removal, Ethical Hacking, Internet Security, Websites Migration, WordPress...⚡ Preferred Freelancer | ⚡ 14+ Years Experience in Web Security and WordPress Hello! I am Harwinder Kumar, a seasoned professional specializing in comprehensive Web Security and WordPress. I offer services in Malware Removal, Virus Removal, Ethical Hacking, Internet Security, Websites Migration, WordPress Development, SSL Installation, Linux Server Administration, Domain & DNS Management, WordPress Speed Optimization and Zen Cart / Drupal / MODX / Moodle / Joomla CMS Upgrades. Achievements: ✅ Cleaned 5000+ websites successfully from malware with security enhancement. ✅ Conducted 1,000+ seamless website migrations. ✅ Completed more than 500 SSL installations. ✅ Optimized speed of 200+ WordPress websites. Services Offered: 1. Malware and Virus Removal (Cleaning Hacked Websites and Servers): ✔ Guaranteed 100% cleanup of websites, including databases from malicious code. ✔ Remediation of WP-VCD malware, backdoors, malicious javascript and conditional redirects. ✔ Specialized solutions for japanese keyword hack, SEO spam / pharma hack, credit card stealers and ecommerce malware. ✔ Google blacklist removal (This site may be hacked, The site ahead contains malware), google deceptive warning fix. ✔ McAfee SiteAdvisor, norton blacklist or any VirusTotal based blacklist fix. 2. Website Security Maintenance: Strategic security enhancements and guidance for future-proofing your digital assets. 3. Website Transfer and Migration: Expert transfer of websites to new hosts or domains for any PHP-based CMS or custom-coded websites, including seamless email migration 4. WordPress Development and Troubleshooting: Comprehensive development and issue resolution, including critical and fatal error fixes. 5. SSL Installation and HTTPS Migration: Seamless migration from HTTP to HTTPS with secure padlock implementation. 6. HTTP Security Headers Fix: Implementation of essential security headers to protect your web application from common vulnerabilities and threats. 7. Linux Server Administration: Efficient server management promoting optimal performance and security. 8. WordPress Speed Optimization: Proven methods to enhance website performance following Google PageSpeed and GTmetrix standards. 9. Domain & Advanced DNS Management: ✔ Expert management of domain settings and DNS configurations to ensure seamless website accessibility and performance. ✔ Configuration and troubleshooting of DKIM, SPF, and DMARC records to enhance email security and deliverability. 10. CMS Upgrades: Upgrading Zen Cart, Drupal, MODX, Moodle and Joomla to their latest stable versions. If you're looking for a trusted partner to secure, optimize and enhance your digital operations, I am here to deliver superior solutions tailored to your needs. Let's collaborate to ensure your website is both secure and performing at its peak! 收起 -
雇用 Deepak904121
I am a Linux admin have 7 years of experience in this field. I worked in webhosting industry and manage datacenter from remote. I give full server management support and I can do this for you . I also have experience working on AWS cloud. I worked in the following areas. * cPanel/WHM * Plesk * Webmin * Website Panel *...I am a Linux admin have 7 years of experience in this field. I worked in webhosting industry and manage datacenter from remote. I give full server management support and I can do this for you . I also have experience working on AWS cloud. I worked in the following areas. * cPanel/WHM * Plesk * Webmin * Website Panel * Website migrations * Installation and configurations of applications like Wordpress, Joomla, magento, etc * Email server configuration and maintenance * FTP and DNS service configurations * Amazon web services like, EC2, S3, Route 53, VPC, RDS. * Migration Specialist *Postfix Mailserver with spf, dkim and IP rotation. *Nagios Monitoring setup *PCI Compliance *FFMPEG server setup *Imagemagick install. *MySQL , MariaDB database administration *DNS server and nameserver configuration *SSL installation/Lets Encrypt Please give me a chance to work with you. I am sure that you will be 100% satisfied 收起
