VoIP Developers da assumere
62 risultati mostrati
Freelance sponsorizzati
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engkarimismail engkarimismail
50 $ USD / ora
✅Senior Network & System Engineer | Security|VOIP✅Malaysia✅ 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 meno
Assumi engkarimismail
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TAFSOL TECHNOLOGIES Group!! Aiming to deliver $10M+ Projects in 2025–2026 Proud Official Odoo Partner — delivering intelligent, enterprise-grade ERP & CRM solutions for global business excellence. 23rd profound member of the OpenJS Foundation, among tech giants like Google, Microsoft, IBM, Uber, and...TAFSOL TECHNOLOGIES Group!! Aiming to deliver $10M+ Projects in 2025–2026 Proud Official Odoo Partner — delivering intelligent, enterprise-grade ERP & CRM solutions for global business excellence. 23rd profound member of the OpenJS Foundation, among tech giants like Google, Microsoft, IBM, Uber, and Coinbase. Actively contributing to Official WordPress, the platform powering millions of websites. TAFSOL Technologies is an Award-Winning Digital Agency recognized by Clutch.co and Manifest as: 1. TOP B2B SERVICES by Clutch.co in Mobile App Development 2. MOST REVIEWED COMPANIES by The Manifest in Software Development Our team of skilled professionals has extensive experience in providing a wide range of digital services such as: ✅ AI Development & Integration to transform your business ✅ Mobile App Design and Development ✅ CRM Design and Development ✅ SAAS-based platform Design and Development ✅ ERP solutions Design and Development ✅ Website Design and Development ✅ Blockchain and smart contracts Development on Ethereum, BNB Smart Chain, Solana, Polygon, etc. ✅ PLC and SCADA System Support for industrial automation ✅ Logo and Graphics Designing Tech Stack We Are Proficient In: Frontend Development Frameworks ✅Reactjs ✅Nextjs ✅Vuejs ✅Angular ✅React Native ✅TypeScript ✅Tailwind CSS ✅Bootstrap ✅Storybookjs Backend Development Frameworks ✅Nodejs ✅Expressjs ✅Nestjs ✅Typescript ✅ASP.net ✅Core PHP ✅PHP Laravel ✅Python ✅Django ✅FastAPI ✅REST APIs ✅GraphQL ✅SOAP APIs Mobile Development ✅React Native ✅Flutter Databases ✅PostgreSQL ✅MongoDB ✅MySQL ✅SQL ✅Redis ✅Supabase ✅Neo4j (Graph Database) ✅Pinecone ✅Weaviate ✅FAISS ✅Chroma ✅pgvector Cloud and DevOps ✅AWS ✅Google Cloud ✅Microsoft Azure ✅Docker ✅Kubernetes ✅CI CD pipelines ✅Nginx AI and Automation ✅OpenAI APIs ✅RAG pipelines ✅Vector databases ✅LangChain ✅AI agents ✅OCR pipelines ✅Computer vision integrations CMS and Ecommerce ✅WordPress ✅Shopify ✅WooCommerce ✅Headless CMS ✅Sanity ✅Strapi Payments and Integrations ✅Stripe ✅PayPal ✅Affirm ✅Twilio ✅SendGrid ✅Google Maps API ✅Zapier Industrial Automation and Control Systems ✅PLC Programming ✅SCADA System Development ✅HMI Design ✅Industrial IoT integrations ✅Modbus communication ✅OPC UA integration ✅Siemens PLC systems ✅Allen Bradley PLC systems ✅Factory automation dashboards What We Offer: ✅ 100% Client Satisfaction Rate ✅ 200+ Years of Accumulated Team Experience ✅ 1500+ Satisfied Clients ✅ 200+ In-house Resources ✅ Clients in 55+ Countries ✅ Quick Response Time < 2–3 Hours ✅ 5-Star Rated Profile Across All Platforms ✅ Dedicated Project Managers with Fluent English ✅ Support 5 Days/Week in EST, PST, MST, GMT (Partial Weekend Support) ✅ Physical Presence in the UK, USA, UAE, and PK Let’s start a chat here on Freelancer to discuss your project and share our ideas with you. Google us “Tafsol Technologies” and explore our amazing services and reviews. Thanks for Visiting our Profile!! meno
Assumi Tafsol
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abusayed2004 abusayed2004
50 $ USD / ora
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. meno
Assumi abusayed2004
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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. meno
Assumi rashidamjad
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kzaouli05 kzaouli05
25 $ USD / ora
System administrator, Telecom engineer, Advanced Web security, VoIP, SIP, PBX & AsteriskMoroccoTelecom/WebHosting/Voip/PBX/System administrator, +15 years of experience in Installing, configuring and managing Systems, Asterisk, Autodialing, FreePBX, Vicidial, GoAutodial, A2billing, IVR, Voice to Mail, Predictive Dialing, Calling Cards(PIN), Voice/SMS BroadCasting, WebRTC, WebPhone, WSS. As a company, we are...Telecom/WebHosting/Voip/PBX/System administrator, +15 years of experience in Installing, configuring and managing Systems, Asterisk, Autodialing, FreePBX, Vicidial, GoAutodial, A2billing, IVR, Voice to Mail, Predictive Dialing, Calling Cards(PIN), Voice/SMS BroadCasting, WebRTC, WebPhone, WSS. As a company, we are a SIP VoIP Provider with competitive rates and the HIGHEST availability levels within multi Systems integration for large traffic. We offer VoIP multi-systems installation packs, multi machines and deliver "All in one unified solution" to support large traffic, billing system , Trunks management, users payment gateways, reports, recordings, security and Web SIP Registration/Login portal. Depend your needs, startup, medium, large usage, welcome to the game. Regards, Kamal zaouli meno
Assumi kzaouli05
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My current position is Unified Communications Administrator at UN International Computing Centre. I have 8 years of experience in designing, deploying, and operating Unified Communications services. I have worked with Microsoft solutions (e.g Skype for Business, Teams) and telephony solutions (e.g AudioCodes, Ribbon,...My current position is Unified Communications Administrator at UN International Computing Centre. I have 8 years of experience in designing, deploying, and operating Unified Communications services. I have worked with Microsoft solutions (e.g Skype for Business, Teams) and telephony solutions (e.g AudioCodes, Ribbon, Cisco,...) meno
Assumi ngoquangtho
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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 more than a decade (but still stayed grounded and low profile). If my qualifications match your needs, please consider our small company for your next project. meno
Assumi jkaranm
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With 15+ years of experience in Web Hosting, Cloud Infrastructure, Email Marketing Systems, DevOps & Linux Server Administration, I help businesses run high-performance, secure and scalable environments. I’ve worked with all major cloud platforms including AWS, Google Cloud, Digital Ocean, and have successfully...With 15+ years of experience in Web Hosting, Cloud Infrastructure, Email Marketing Systems, DevOps & Linux Server Administration, I help businesses run high-performance, secure and scalable environments. I’ve worked with all major cloud platforms including AWS, Google Cloud, Digital Ocean, and have successfully delivered 850+ projects with excellent client satisfaction. 🌐 Core Services 🔸 Server & Cloud Management • Server Setup & Optimization (Linux, Ubuntu, CentOS, Alma Linux) • WHM/cPanel, Plesk, Webmin, CyberPanel • VPS / Dedicated / Cloud Server Management • Security Hardening & Firewall Setup (CSF, UFW) • HA-Proxy Load Balancing, Auto-Scaling • NGINX, Apache, PHP-FPM tuning • Backup, Disaster Recovery & Monitoring • SSL Installation, Fixing SSL/CURL Issues ________________________________________ 🔸 DevOps & Automation • Docker, Kubernetes, Ansible, Jenkins • CI/CD Pipelines • Cloud Infrastructure Automation • Git, GitHub Actions • Infrastructure Scaling & Optimization ________________________________________ 🔸 Video Streaming & Real-Time Platforms • BigBlueButton (BBB) Setup & Customization • Jitsi Meet • Red5, Wowza • Live Streaming Server setup (RTMP, HLS) ________________________________________ 🔸 Email Marketing Infrastructure • SMTP (Postfix, Send mail, PowerMTA) • DKIM, DMARC, SPF, rDNS Setup • MailWizz, Interspire, Acelle, Sendy, Mumara • Email Warmup, Inbox Optimization • SES, SendGrid, Mailgun Integration • Email Deliverability Fixes ________________________________________ 🔸 Windows & Office Services • Office 365 Setup & Administration • Windows Server Management • SSL Troubleshooting ________________________________________ 🔎 Digital Marketing Experience With 9+ years in Digital Marketing & SEO, I help clients increase online visibility using: • SEO (On-page, Technical, Off-page) • Google Ads Campaign Optimization • Website Audit & Traffic Growth Strategies Weekly and monthly performance reports are provided for full transparency. meno
Assumi kuldeepvk
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touhidecevw touhidecevw
60 $ USD / ora
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. meno
Assumi touhidecevw
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I am a Full-Stack Web Developer and Linux System Administrator with over 5 years of professional experience delivering production-grade applications for clients across multiple industries. My primary expertise includes Next.js, React, Node.js, NestJS, TypeScript, PostgreSQL, and MongoDB. I design and develop complete...I am a Full-Stack Web Developer and Linux System Administrator with over 5 years of professional experience delivering production-grade applications for clients across multiple industries. My primary expertise includes Next.js, React, Node.js, NestJS, TypeScript, PostgreSQL, and MongoDB. I design and develop complete web solutions — from responsive front-end interfaces to scalable REST APIs, database architecture, authentication systems, and payment integrations with Stripe. In addition to application development, I bring a distinct advantage: hands-on Linux server administration experience managing a live SaaS platform (StudiaNova, California) for over 5 years without interruption. This allows me to handle the full delivery lifecycle — development, deployment, server hardening, and ongoing maintenance — across AWS, GCP, DigitalOcean, and custom VPS environments. I have contributed to AI-powered platforms, social applications, real-time systems, and marketplace projects. My delivery record speaks for itself: 35 completed projects, 5.0 rating, 100% on time, 100% on budget. If you are looking for a developer who takes full ownership of your project from code to production, I welcome the opportunity to collaborate. #nextjs #react #nodejs #nestjs #postgresql #typescript #devops #linux #docker #aws meno
Assumi rakibulinux
