VoIP Developers para contratar
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Freelancers patrocinados
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abusayed2004 abusayed2004
$50 USD / hora
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. menos
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engkarimismail engkarimismail
$50 USD / hora
✅ 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 menos
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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. menos
Contratar rashidamjad
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Are you searching for a dynamic and skilled IT professional to elevate your business? Look no further! I am an experienced freelancer offering a wide range of services to boost your online presence and drive success. With a passion for quality assurance software testing, I ensure flawless software performance. As a...Are you searching for a dynamic and skilled IT professional to elevate your business? Look no further! I am an experienced freelancer offering a wide range of services to boost your online presence and drive success. With a passion for quality assurance software testing, I ensure flawless software performance. As a Cisco Certified Network Associate (CCNA), I excel in network engineering, optimizing network infrastructures with precision. For seamless system administration, I manage servers and maintain optimal performance in Linux and Windows environments. TestRail expertise streamlines testing processes, enhancing efficiency. I bring creativity and technical prowess to web design and development, crafting engaging user experiences and visually stunning designs. From ecommerce platforms to personal portfolios, I bring your vision to life. As a multilingual translator (Urdu to English), I bridge linguistic barriers and expand your reach. I also offer expert teaching in English, computer science, and IT subjects. From data entry to database administration (MySQL and Microsoft SQL), finance, and business administration, my meticulous attention to detail and organizational skills drive operational efficiency. As a Microsoft Certified Specialist in PowerPoint, Excel, and Word, I create impactful presentations, automate spreadsheets, and produce professional documents. Proficient in Microsoft Azure and AWS, I deploy, manage, and optimize secure and scalable cloud environments for your business needs. For hassle-free web hosting and domain registration, I specialize in cPanel/WHM, WHMCS, WordPress, and Joomla configuration and installation. I am a versatile IT professional with expertise in quality assurance software testing, network engineering, system administration, web design and development, translation services, and more. Let's collaborate and drive tangible business growth together! menos
Contratar wallymna
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We're having a multi-year experience in Custom Software and Mobile Application development and Dedicate Support and Maintenance of the Portals. ⭐⭐⭐⭐⭐ Reviews, ⭕ Highly Skilled Team. ⭕ 14+ Years Experience in Web Development. ⭕ 1100+ Projects Completed Till Now And Keep Counting. ⭕ 99% Satisfied Customers And Keep...We're having a multi-year experience in Custom Software and Mobile Application development and Dedicate Support and Maintenance of the Portals. ⭐⭐⭐⭐⭐ Reviews, ⭕ Highly Skilled Team. ⭕ 14+ Years Experience in Web Development. ⭕ 1100+ Projects Completed Till Now And Keep Counting. ⭕ 99% Satisfied Customers And Keep Increasing. ⭕ 24x7- Dedicate Team for Support and Maintenance. ✔ SPECIALITIES - PHP - CodeIgniter - Laravel - Wordpress - Rise CRM - Node.Js - AWS - Woocommerce - Opencart - Prestashop - Shopify - Magento - Yii - Twilio - VOIP - SuiteCRM - Moodle - Azure Server API - Perfex CRM ✔ OUR EXPERTISE IN AREA ERP ◆ CRM ◆ CMS ◆ Twilio ◆ VOIP ◆ Courier & Logistics ◆ Warehousing ◆ E-Commerce ◆ Static / Dynamic Web Responsive Web Development ◆ Hybrid APP ◆ Payment Gateway Integration ◆ SuiteCRM ◆ Moodle ◆ Azure Server API ◆ Perfex CRM ◆ AWS ◆ menos
Contratar mascotindia123
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Experienced software engineer and AI specialist partnering with businesses to drive revenue growth, optimize operations, and unlock scalable efficiencies through intelligent digital solutions. Specializing in high-impact web applications, AI-driven systems, automation workflows, and custom software that enhance...Experienced software engineer and AI specialist partnering with businesses to drive revenue growth, optimize operations, and unlock scalable efficiencies through intelligent digital solutions. Specializing in high-impact web applications, AI-driven systems, automation workflows, and custom software that enhance customer engagement, streamline processes, and deliver measurable ROI. Web Development: Frontend with React, Next.js, Vue.js, Angular, Svelte; backend via Node.js, Django, Flask, FastAPI, Nuxt.js, Remix, Astro. E-commerce platforms on Shopify, WooCommerce, Magento, BigCommerce with Stripe, PayPal, Razorpay, Square integrations. CMS including WordPress, Webflow, Ghost, Strapi, Sanity, and headless architectures. AI & Machine Learning: Frameworks like TensorFlow, PyTorch, Scikit-learn, Keras, JAX. LLMs via Hugging Face, LangChain, OpenAI GPT-4o/5o, LLaMA, Claude, Mistral. NLP for sentiment analysis, summarization, Q&A, multilingual chatbots, speech-to-text/synthesis. Computer vision with YOLO, SAM, OCR, facial recognition, object tracking, segmentation. Generative AI including Stable Diffusion, DALL·E, MidJourney API, ControlNet, upscaling, synthetic data. Automation & Data: Web scraping via Scrapy, Selenium, Playwright, Puppeteer, Apify, Crawlee. RPA with UiPath, Zapier, Make, n8n. Data science using Pandas, NumPy, Plotly, Tableau, Spark, Polars. MLOps on MLflow, Airflow, Kubeflow, SageMaker, Vertex AI, Docker, Kubernetes. Applications & Cloud: Desktop (PyQt, Electron, Tkinter); mobile (React Native, Flutter, Swift, Kotlin, PWA). Cloud/DevOps: AWS, Azure, GCP, Vercel, Netlify, Terraform, CI/CD, Nginx. Technical Skills: Python, JavaScript/TypeScript, Rust, Go, C#, Java, PHP, Bash. Tools: GitHub, Postman, Jupyter, VS Code, Figma. Delivering full-cycle development from strategy to deployment, my solutions empower data-driven decisions, cost reductions, and accelerated growth across industries. Available for collaborations scaling businesses via AI, web, and automation. menos
Contratar zeshan7929
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udayarpandey2022 udayarpandey2022
$50 USD / hora
IT Infra Solution Architect - DevOps - SecurityNepalLet's keep this short. Anything related to IT: (System/Network/DevOps/Virtualization/Wordpress/Development/Servers/Mail) I can handle them all, period. Ganesh D.Let's keep this short. Anything related to IT: (System/Network/DevOps/Virtualization/Wordpress/Development/Servers/Mail) I can handle them all, period. Ganesh D. menos
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I specialize in outsourcing and digital marketing and am committed to improving your business's efficiency and effectiveness. While I can't please everyone, I have built a strong reputation in the industry. My services include data entry, Virtual Assistant, lead mining, email sending, article writing,...I specialize in outsourcing and digital marketing and am committed to improving your business's efficiency and effectiveness. While I can't please everyone, I have built a strong reputation in the industry. My services include data entry, Virtual Assistant, lead mining, email sending, article writing, proofreading/editing, telemarketing, designs, and more. As an experienced BPO professional (though my team and I cannot please everyone), I (and my team) have worked with numerous companies worldwide in areas such as lead generation, sales, customer service/support, data entry/processing, VA, and research. I offer many services, including telemarketing, customer service, graphics design, logo design, branding, technical support, data entry, and more. I was featured on Freelancer a few years ago (together with my small team) and have been a Preferred Freelancer here for several years. If my qualifications match your needs, please consider our small company for your next project. menos
Contratar jkaranm
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touhidecevw touhidecevw
$60 USD / hora
Network & System Specialist|CCNP|Fortinet|RHCE|CEHBangladesh✅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. menos
Contratar touhidecevw
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rakibulinux rakibulinux
$30 USD / hora
Web Developer, DevOps Engineer, Linux System AdminBangladeshGreetings! I'm an experienced Next.js/MERN Stack Web Developer, DevOps Engineer and Linux System Administrator with a wide range of skills and expertise. With years of professional working experience in these fields, I have worked with a variety of technologies, including Git, GitHub, and GitLab for version control,...Greetings! I'm an experienced Next.js/MERN Stack Web Developer, DevOps Engineer and Linux System Administrator with a wide range of skills and expertise. With years of professional working experience in these fields, I have worked with a variety of technologies, including Git, GitHub, and GitLab for version control, HTML, CSS, JavaScript, NextJS, and ReactJS for front-end development, MongoDB, NodeJS, NestJS, and ExpressJS for back-end development. In addition to my development skills, I have extensive experience with Linux system administration, including deployment on Ubuntu, CentOS, and Debian. I also have experience deploying and migrating any application/website from one server to another, like if you want to migrate your website from EC2 to GCP/Azure/DO and other provider or even any server I can help you to do it with less down time. My expertise in cloud platforms such as AWS, Digital Ocean, Google Cloud, Azure, Linode, and Vultr, combined with my experience with automation tools like Docker, Ansible, Puppet, Vagrant, Capistrano, and Kubernetes, allows me to efficiently manage infrastructure and ensure scalability. I also have experience with popular CMS platforms such as WordPress, Joomla, and Drupal, and have set up and managed video conferencing solutions using Jitsi Meet, OpenMeet, BigBlueButton, and Zoom. In addition, I have set up and maintained VOIP solutions using Asterisk, Kazoo, and FreePBX, and have experience with SMS gateway and SMPP setup. As an experienced developer, I am committed to delivering high-quality work, meeting deadlines, and exceeding client expectations. If you're looking for a skilled MERN Stack Web Developer and Linux System Administrator for your project, feel free to contact me. #linux #jitsi #html #css #javascript #react #mongodb #expressjs #nodejs #fullstack menos
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