Troubleshooters pentru angajare
Se afișează 82 rezultate
Freelanceri sponsorizați
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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 mai puțin
Angajează pe 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. mai puțin
Angajează pe zulqrn
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════════════════════════⭐️⭐️⭐️⭐️⭐️════════════════════════ Greetings, I am Daniel, a dedicated and seasoned freelancer specializing in computer solutions. With a wealth of experience in Windows platforms, I am deeply committed to delivering top-tier solutions to my clientele. As the founder of Danysys, I boast a...════════════════════════⭐️⭐️⭐️⭐️⭐️════════════════════════ Greetings, I am Daniel, a dedicated and seasoned freelancer specializing in computer solutions. With a wealth of experience in Windows platforms, I am deeply committed to delivering top-tier solutions to my clientele. As the founder of Danysys, I boast a proven track record of consistently achieving outstanding outcomes. My expertise spans a wide array of areas including malware removal, software development in various languages such as C, C++, C#, VB, .Net, Pascal, FreeBasic, PureBasic, Python, PHP, PowerShell, AutoIt, InnoSetup, Scraping, and Scripting. Moreover, I am always open to expanding my skill set by learning and incorporating new technologies beyond those listed. My unwavering dedication lies in ensuring job satisfaction and surpassing client expectations. Let us collaborate to breathe life into your project! ════════════════════════⭐️⭐️⭐️⭐️⭐️════════════════════════ Saludos, soy Daniel, un freelancer dedicado y experimentado especializado en soluciones informáticas. Con una gran experiencia en plataformas Windows, estoy profundamente comprometido a brindar soluciones de primer nivel a mi clientela. Como fundador de Danysys, me enorgullezco de tener un historial comprobado de lograr resultados sobresalientes de manera constante. Mi experiencia abarca una amplia gama de áreas, incluyendo la eliminación de malware, el desarrollo de software en varios lenguajes como C, C++, C#, VB, .Net, Pascal, FreeBasic, PureBasic, Python, PHP, PowerShell, AutoIt, InnoSetup, Scraping y Scripting. Además, siempre estoy abierto a ampliar mi conjunto de habilidades aprendiendo e incorporando nuevas tecnologías más allá de las enumeradas. Mi inquebrantable dedicación radica en garantizar la satisfacción laboral y superar las expectativas de los clientes. Colaboremos para dar vida a tu proyecto. mai puțin
Angajează pe dany3j
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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 mai puțin
Angajează pe ramygoda1590
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Certified Linux Sysadmin & DevOps Engineer | 14+ Years of Enterprise Experience I am a Certified Linux System Administrator and DevOps Professional with over 14 years of hands-on experience architecting, securing, optimizing, and scaling production environments. I specialize in building resilient infrastructure,...Certified Linux Sysadmin & DevOps Engineer | 14+ Years of Enterprise Experience I am a Certified Linux System Administrator and DevOps Professional with over 14 years of hands-on experience architecting, securing, optimizing, and scaling production environments. I specialize in building resilient infrastructure, automating deployments, and delivering high-performance hosting solutions across cloud and on-premise platforms. Over the past decade, I have successfully designed, deployed, migrated, and rebuilt hundreds of servers and applications — ensuring maximum uptime, security, and performance. 🔹 Core Expertise 🚀 Server Architecture & Hosting Management WHM/cPanel, Plesk, DirectAdmin, Virtualmin, ISPConfig, aaPanel, WebsitePanel Complete server setup, hardening, optimization & performance tuning Secure server migration (websites, databases, emails, full-stack apps) SSL deployment (domains & subdomains) NGINX & Apache configuration and optimization 🐧 Linux Administration Extensive experience with: RedHat, CentOS, AlmaLinux, CloudLinux Ubuntu / Debian Fedora Amazon Linux Advanced expertise in: System security & hardening Performance tuning User & permission management Shell scripting & automation Backup & disaster recovery planning ⚙️ DevOps & CI/CD CI/CD pipeline design and implementation GitHub Actions & Self-hosted Runners Bitbucket CI/CD Jenkins automation Deployment automation for PHP, Node.js, Java, and .NET Core applications 🌐 Web & Application Stack LAMP / LEMP stack setup Node.js, NPM Java environments .NET Core deployments (Linux & IIS) WordPress optimization & security MySQL administration phpMyAdmin configuration OpenVPN server setup ☁️ Cloud & Infrastructure Extensive cloud deployment and management experience across: AWS Google Cloud Microsoft Azure DigitalOcean Vultr Linode HostGator SiteGround GoDaddy From initial infrastructure design to scaling production workloads, I ensure environments are secure, cost-efficient, and highly available. 💡 What You Can Expect Working With Me ✔ Secure & optimized infrastructure ✔ Clean and automated deployments ✔ Zero-downtime migrations ✔ Fast turnaround times ✔ Clear communication ✔ 100% commitment to client satisfaction If you're looking for a reliable, experienced, and proactive DevOps/Linux expert who can take ownership of your infrastructure and deliver measurable results — I’m ready to help. Let’s build something powerful and secure together. mai puțin
Angajează pe sandeepatwork
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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. mai puțin
Angajează pe emilesd617
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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...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! mai puțin
Angajează pe 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 mai puțin
Angajează pe 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. mai puțin
Angajează pe raphaelokekeze
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Hi, I'm Mohammad – Full-Stack Developer | Shopify Expert | SEO & PPC Strategist ✅ React ✅ Shopify ✅ WordPress ✅ Node.js ✅ Laravel ✅ SEO ✅ PPC ✅ Mobile Apps ✅Android ✅ Conversion Tracking ✅ Google Ads ✅ UI/UX Working globally since 2014 Web Development - Full-stack apps using modern frameworks (React,...Hi, I'm Mohammad – Full-Stack Developer | Shopify Expert | SEO & PPC Strategist ✅ React ✅ Shopify ✅ WordPress ✅ Node.js ✅ Laravel ✅ SEO ✅ PPC ✅ Mobile Apps ✅Android ✅ Conversion Tracking ✅ Google Ads ✅ UI/UX Working globally since 2014 Web Development - Full-stack apps using modern frameworks (React, Next.js, Laravel,) - Shopify stores with custom themes & app integrations - WordPress custom themes, plugins, and Elementor builds Mobile App Development - Cross-platform apps with React Native - Real-time features for eCommerce, booking, and delivery - API integrations and push notifications Digital Marketing Tech - SEO audits, speed optimization, schema markup - Google Ads and Meta Ads setup & automation - Conversion tracking with GA4, GTM, and CRM integration API & System Integrations - Third-party APIs (CRM, ERP, Booking, Payment) - REST and GraphQL API development - Custom dashboards and reporting systems Creative & 3D Experiences - Interactive 3D viewers using Three.js and Sketchfab - 360° product showcases - WebGL enhancements for unique UI/UX Why Work With Me ✅ Deep understanding of both development and marketing ✅ Clear communication, full transparency, and regular updates ✅ Adaptable to your tools, stack, and business goals ✅ Focused on scalable, high-performance solutions Let’s collaborate and bring your project to life. Message me and let’s get started. mai puțin
Angajează pe webozza
