Troubleshooters k zaměstnání
Zobrazuje 92 výsledků
Sponzorovaní freelanceři
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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 years, I’ve worked across diverse environments — including...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. méně
Zaměstnejte uživatele zulqrn
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With years of experience in web development and server management, I bring a wealth of expertise to the table. Whether you're a budding entrepreneur, a small business owner, or an established enterprise, my skills and dedication are at your service.With years of experience in web development and server management, I bring a wealth of expertise to the table. Whether you're a budding entrepreneur, a small business owner, or an established enterprise, my skills and dedication are at your service. méně
Zaměstnejte uživatele sabdsouza
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Pavlo1Liashenko Pavlo1Liashenko
$30 USD / hod.
AI | Web | Mobile | Automation | Chatbot |ScrapingPolandI am a Full Stack, Mobile, and DevOps Engineer with 8 years of experience building scalable, high-performance applications and automating complex business workflows. I specialize in AI-driven solutions, end-to-end product development, cloud infrastructure, and automation, delivering reliable systems that are fast,...I am a Full Stack, Mobile, and DevOps Engineer with 8 years of experience building scalable, high-performance applications and automating complex business workflows. I specialize in AI-driven solutions, end-to-end product development, cloud infrastructure, and automation, delivering reliable systems that are fast, secure, and easy to maintain. With a strong background across web, mobile, backend, and DevOps, I help companies move from idea → prototype → production with clean architecture, modern tooling, and long-term scalability in mind. 🧠 Core Expertise -Artificial Intelligence & Automation – AI agents, LLM integrations (OpenAI, Claude, Gemini), RAG, workflow automation, NLP, vision, and process optimization -Full Stack Development – React / Next.js, Node.js, TypeScript, REST & GraphQL APIs, microservices -Mobile Development – Flutter / React Native for high-performance cross-platform apps -Backend & Distributed Systems – Go / Node.js / Python, event-driven architecture, WebSockets, real-time messaging -Cloud & DevOps – AWS, GCP, Docker, Kubernetes, CI/CD pipelines, infrastructure automation (IaC) -Database & Storage – PostgreSQL, MySQL, Redis, MongoDB, S3, Firebase -System Architecture – Clean architecture, domain-driven design, scalable backend infra 🚀 What I Deliver -AI-powered applications and assistants -Full-stack web platforms (MVP to enterprise scale) -Cross-platform mobile apps (iOS + Android) -Reliable CI/CD automation and DevOps workflows -Real-time apps: chat, notifications, streaming, collaboration -Scalable microservices & cloud infrastructure -High-quality code, documentation, and long-term support ✅ Why Clients Work With Me -8+ years across AI, Mobile, Full Stack, and DevOps -Proven track record of delivering production-ready systems -Clear communication and solution-focused mindset -Fast onboarding and independent execution -Focus on performance, security, and scalability méně
Zaměstnejte uživatele Pavlo1Liashenko
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I’m a freelance programmer with over 6 years of experience in developing both web and mobile applications. I’ve worked on a wide range of projects, including e-commerce platforms, social networks, media apps, and tools using machine learning such as image recognition and ID card scanning. I also build custom business...I’m a freelance programmer with over 6 years of experience in developing both web and mobile applications. I’ve worked on a wide range of projects, including e-commerce platforms, social networks, media apps, and tools using machine learning such as image recognition and ID card scanning. I also build custom business and management applications for internal use, based on specific client needs. Skills & Technologies: Web Development: HTML, CSS, JavaScript, TypeScript, React, Vue, Node.js, Django, Laravel, MySQL, PostgreSQL, MongoDB, Firebase Mobile Development: Flutter, React Native Android (Java/Kotlin) iOS (Swift) I focus on building clean, efficient, and user-friendly apps that solve real problems. I’m always open to new projects and happy to discuss how I can help. Let’s work together! méně
Zaměstnejte uživatele loinguyen254
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⭐ *“15+ years securing Linux servers & PHP/WP sites—100% uptime, 24/7 threat defense.”* ⭐ Hi, I’m Mohammad A., a dedicated Linux Server Administrator and Security Specialist with over 15 years of experience. I’m passionate about helping businesses like yours achieve reliable, secure, and high-performance server...⭐ *“15+ years securing Linux servers & PHP/WP sites—100% uptime, 24/7 threat defense.”* ⭐ Hi, I’m Mohammad A., a dedicated Linux Server Administrator and Security Specialist with over 15 years of experience. I’m passionate about helping businesses like yours achieve reliable, secure, and high-performance server environments. Whether you need a custom VPS setup, seamless website migration, or advanced server security, I deliver tailored solutions that drive success. With 100+ 5-star reviews from global clients, I’m committed to exceeding your expectations with 24/7 support and proven expertise. Let’s build a hosting solution that empowers your business—reach out today! What I Offer: ✨ Linux Server Management: Optimize LAMP/LEMP stacks for seamless performance. ✨ VPS & Dedicated Server Setup: Custom configurations tailored to your needs. ✨ Server Security: Malware removal, firewall setup, and threat defense (e.g., reduced security incidents by 50%). ✨ Cloud Hosting Solutions: Expertise in AWS, Google Cloud, and Azure for scalable setups. ✨ Control Panel Mastery: Proficient in cPanel, Plesk, CyberPanel, and WHM. ✨ Website Migration: Migrated 500+ websites with zero downtime or data loss. ✨ SSL & DNS Management: Troubleshoot SSL errors and configure DNS. ✨ Performance Optimization: Boost server speed (e.g., improved load times by 30%). ✨ Error Troubleshooting: Resolve PHP, database, and configuration issues. Why Choose Me? ✨ Client-Focused Approach: I tailor every project to your specific goals. ✨ 24/7 Support: Available round-the-clock for urgent issues. ✨ Proven Excellence: Trusted by 100+ clients with 5-star reviews. How I Can Help You ✔ Troubleshoot and resolve server issues to ensure peak performance. ✔ Configure VPS and dedicated servers for optimized setups. ✔ Strengthen your server security with proactive measures. ✔ Migrate websites seamlessly with guaranteed uptime. ✔ Manage and troubleshoot control panels like cPanel, Plesk, and WHM. ✔ Optimize high-traffic websites for faster speeds and reliability. Availability: 30 hours/week Rates: $20 USD/hour (negotiable) Let’s Get Started! Ready to ensure your hosting environment is secure and high-performing? Contact me today to discuss your needs! méně
Zaměstnejte uživatele armanmohammad
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vincentgrerry vincentgrerry
$15 USD / hod.
Full stack web | PHP | JQuery | ReactJs | DB ArchIndonesiaHi there! I'm a Front-End Software Engineer with nearly 7 years of hands-on experience in ReactJS, Redux, and TypeScript/JavaScript. I’m currently active in this role and passionate about building intuitive, high-performance web applications. In addition, I bring over 18 years of experience as a Full-Stack Web...Hi there! I'm a Front-End Software Engineer with nearly 7 years of hands-on experience in ReactJS, Redux, and TypeScript/JavaScript. I’m currently active in this role and passionate about building intuitive, high-performance web applications. In addition, I bring over 18 years of experience as a Full-Stack Web Developer with deep expertise in PHP (both Native and CodeIgniter), Bootstrap, jQuery, API integration, and system architecture using MySQL, MSSQL, and PostgreSQL. As a freelancer, I’ve successfully delivered projects for government institutions, companies, and individuals. I’m also experienced in system analysis and end-to-end project development. I’d be happy to discuss your project in detail to align on goals, timelines, and pricing. If you're ready to collaborate, just click "Hire Me" let’s build something great together! Thank you! méně
Zaměstnejte uživatele vincentgrerry
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I have been working with network devices and system admin for the past few years and have great experience with them. I am ready to be hired and start working on your projects today. ~regards | Cisco Expert Routing Switching | | VMware Expert | Juniper Router | HCNA Huawei | | Fortinet NSE1 NSE2 NSE3 | | PFSense...I have been working with network devices and system admin for the past few years and have great experience with them. I am ready to be hired and start working on your projects today. ~regards | Cisco Expert Routing Switching | | VMware Expert | Juniper Router | HCNA Huawei | | Fortinet NSE1 NSE2 NSE3 | | PFSense Advanced | FreeBSD Advanced | Mikrotik MTCNA MTCWE | Palo Alto Expert | | Docker | Docker Compose | Nomad | Kubernetes | Ansible Expert | Terraform | Scripting Automation | WebServer Nginx and Apache Expert | | MySQL Tune High Performance | Indexing | Tune Up | | Github Action | Gitlab Pipelines Expert méně
Zaměstnejte uživatele dwinurhadi
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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. méně
Zaměstnejte uživatele raphaelokekeze
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19 Years experience as Linux/Unix Admin, System/Storage/Server Admin, Virtualization Expert => Install and troubleshoot anything on Linux/Unix, Windows => Centos, RHEL, Ubuntu, Debian, Cloudlinux, Windows => Backup, Recovery, System boot and kernel issues => Server Security and Hardening: FIREWALLD, UFW, IPTABLES,...19 Years experience as Linux/Unix Admin, System/Storage/Server Admin, Virtualization Expert => Install and troubleshoot anything on Linux/Unix, Windows => Centos, RHEL, Ubuntu, Debian, Cloudlinux, Windows => Backup, Recovery, System boot and kernel issues => Server Security and Hardening: FIREWALLD, UFW, IPTABLES, Selinux, Fixing Security vulnerabilities => User, Disk, File Management,Linux Networking/Routing, ISCSI, Multipath, LVM, Partitions => Servers: Cisco, HP, IBM, Dell, Supermicro => Hardware and Software RAID, SAN/NAS Storage => Virtualizor, KVM, Xen, ESXI, VirtualBox, VMware, Vcenter Converter => Apache, Nginx, Mysql, RDS, SSL including Letsencrypt, cPanel, Webmin, Plesk => AWS, GCP, Digital Ocean => NTP, SSH, SQUID, DHCP, BIND, Postfix, Sendmail, VNC, Kannel, HA-Lizard, DRBD, XCD-NG, RSYNC, ISCSI, Multipath, NFS, VSFTPD, Samba => WHMCS, Opencloud, Nextcloud, Zulip, OpenVPN, Polr, Odoo, Advandate, Openmeetings, TOR, Keycloak, Rocket chat, Opencanary, eSignForms, Apache Nifi méně
Zaměstnejte uživatele kahlonkamal318
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I have 12 years of experience in Linux and Cloud server management which includes Monitoring, Security, and Optimization. Designed, configured, and managed public/private cloud infrastructures utilizing Amazon Web Services (AWS), including Elastic Cloud Compute (EC2), Virtual Private Cloud (VPC), Public and...I have 12 years of experience in Linux and Cloud server management which includes Monitoring, Security, and Optimization. Designed, configured, and managed public/private cloud infrastructures utilizing Amazon Web Services (AWS), including Elastic Cloud Compute (EC2), Virtual Private Cloud (VPC), Public and Private Subnets, Security Groups, Route Tables, Elastic Load Balancer, Cloud Watch and IAM. Implemented AWS high availability using AWS Elastic Load Balancing (ELB), which performed a balance across instances in multiple Availability Zones. AWS deployment using Ansible and Terraform, also deployed, and administered Open stack services. Configuring Ansible to manage AWS environments and automate the build process for core AMIs (Amazon Machine Image) used by all application deployments including Auto scaling and Cloud formation scripts. Worked with Docker on multiple cloud providers, from helping developers build and containerize their application (CI/CD) to deploying either on public or private cloud. Played a major role in building Docker images; create build and deployment configurations to deploy applications using Jenkins onto the Kubernetes cluster. Deployed and configured Elastic search ELK, Logstash and Kibana (ELK) for log analytics, full text search, application monitoring in integration with AWS Lambda and CloudWatch. Used Kubernetes to deploy scale, load balance, scale and manage Docker containers with multiple namespace versions. Troubleshooting the network issues involving TCP/IP, LAN/WAN networking, DNS, DHCP, SMTP, SNMP, netstat and monitored the servers and Linux scripts regularly and performed troubleshooting. Monitoring of the servers through Nagios, Icinga2, Zabbix I can handle cloud platform setup and Network management. I'm an expert in Website and e-mail Migration. I also have experience on VMware. Cloud Services: Amazon web services (AWS) , Gcloud , Digitalocean , Scaleway , Azure , Rackspace , Linode etc... My areas of expertise are: Linux, FreeBSD, Windows, Asterisk, FreePBX, NFS, CIFS, VMware, Xen, LVM, Apache, Nginx, Tomcat, Zimbra, Qmail, Sendmail, Postfix, Exim, LVM in Linux, Jabber, Openfire, FTP, Bind, PowerDNS, Pfsense, IPtables, Zabbix, Nagios, MysQL, LDAP, SquidFreeNAS, IPSEC, OpenVPN, PPTP, L2TP TECHNICAL SKILLS Operating systems: Linux, Windows Protocols: TCP/IP, FTP, DHCP, HTTP, SMTP, POP, IMAP Application/Web Servers: Apache, Nginx, Litespeed Mail Servers: Postfix, exim, sentmail, zimbra, iredmail méně
Zaměstnejte uživatele bindmission
