VoIP Developers For Hire
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Hire engkarimismail
engkarimismail engkarimismail
$50 USD / hour
✅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 less -
Hire abusayed2004
abusayed2004 abusayed2004
$50 USD / hour
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. less -
Hire kzaouli05
kzaouli05 kzaouli05
$25 USD / hour
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 less -
Hire ngoquangtho
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,...) less -
Hire krisk63
I am a seasoned full-stack software developer and AI Engineer with over 15 years of experience in crafting, developing, and managing sophisticated software projects. My passion for technology drives me to stay updated with the latest trends, allowing me to create innovative solutions tailored to meet diverse business...I am a seasoned full-stack software developer and AI Engineer with over 15 years of experience in crafting, developing, and managing sophisticated software projects. My passion for technology drives me to stay updated with the latest trends, allowing me to create innovative solutions tailored to meet diverse business needs. My extensive skill set enables me to build and maintain robust systems that meet the varied demands of businesses across different sectors. I specialise in developing AI-powered platforms that enhance user experience and automate complex processes. By leveraging machine learning algorithms and natural language processing, I create intelligent systems that provide actionable insights and drive efficiency across various applications. Core Skills and Technologies: - Web Technologies: JavaScript, TypeScript, React/Next.js, Vue, Angular, - Backend Frameworks: PHP (Laravel), Python (Django, Flask), Node.js - WebGL: Three.js, Babylon.js, PixiJS - Database: MongoDB, PostgreSQL, MySQL, Sqlite, - AI technology: OpenAI, Prompt Engineering, AI Agent, AI Chatbot, AI Text-to-Speech, AI Speech-to-Text I am dedicated to delivering high-quality solutions with a strong focus on innovation and efficiency. My commitment to excellence and collaborative approach ensures the success of every project I engage in. I would love to connect and discuss how we can work together. Best regards, Kris Kramer less -
Hire jkaranm
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. less -
Hire C0RETECHIES
At Core Techies, we've delivered 35+ AI-powered systems since 2023 — from voice agents handling 5000+ daily calls to n8n automation workflows processing 10,000+ transactions monthly. We build AI Agents, Voice Bots, Chat Bots, Automation Systems, and AI SaaS MVPs with a 99% on-time, 97% on-budget track record across...At Core Techies, we've delivered 35+ AI-powered systems since 2023 — from voice agents handling 5000+ daily calls to n8n automation workflows processing 10,000+ transactions monthly. We build AI Agents, Voice Bots, Chat Bots, Automation Systems, and AI SaaS MVPs with a 99% on-time, 97% on-budget track record across 200+ projects. 🔊 Voice AI — We build AI voice agents using VAPI, Retell AI, Twilio, Eleven Labs and Deepgram for inbound/outbound call handling, appointment booking, lead qualification, and customer support. Integrates with CRMs, Google Sheets, and booking systems. ⚡ AI Automation & Workflows — End-to-end business process automation using n8n, Make.com (Integromat), and Zapier integrated with DeepSeek, OpenAI GPT-5 (ChatGPT), Anthropic's Claude, and Google's Gemini. We automate Marketing workflows, Sales workflows, Operation workflows, HR Onboarding, Invoice Processing and Customer Support Triage etc. 🔥 AI Agents — Custom AI agents for 24/7 customer engagement, sales qualification, document processing, and internal operations. Built with LangChain, CrewAI, and OpenAI function calling. 🔌 AI Integrations — We integrate AI capabilities into your existing tech stack — CRMs, ERPs, e-commerce platforms, mobile apps. DeepSeek, OpenAI GPT-5 (ChatGPT), Anthropic's Claude, and Google's Gemini API integrations with your business systems. 🚀 AI SaaS MVPs — Full AI-native product development from concept to launched MVP in under 30 days. RAG systems, AI chatbots, AI-powered dashboards, and AI SaaS applications. Scalable and production-ready. less -
Hire arodrigue
Hi, I'm an IT expert specializing in Cyber Security, Cloud technologies, and full-stack Web and VoIP development. I'm fluent in PHP, Python, Java, CSS, and HTML, with a strong background in Linux system administration. In Cyber Security, I have over 22 years of experience in both defensive and offensive roles, backed...Hi, I'm an IT expert specializing in Cyber Security, Cloud technologies, and full-stack Web and VoIP development. I'm fluent in PHP, Python, Java, CSS, and HTML, with a strong background in Linux system administration. In Cyber Security, I have over 22 years of experience in both defensive and offensive roles, backed by certifications from industry leaders such as Google, Microsoft, IBM, AWS, and Cisco. On the VoIP front, I specialize in Asterisk and Twilio, focusing on the design and implementation of telecommunications solutions using both commercial and open-source frameworks. I've developed multiple call center IVR systems and other telephony solutions deployed globally. less -
Hire Microlent
Namaste and welcome to Microlent Systems. We are a full time development agency that builds Web, Mobile, SaaS, Ecommerce and Automation solutions for startups and enterprises worldwide. Since 2008 we have delivered 375+ projects on Freelancer with a 4.9 star rating, Preferred Freelancer status, and Corporate...Namaste and welcome to Microlent Systems. We are a full time development agency that builds Web, Mobile, SaaS, Ecommerce and Automation solutions for startups and enterprises worldwide. Since 2008 we have delivered 375+ projects on Freelancer with a 4.9 star rating, Preferred Freelancer status, and Corporate verification. What we do • Custom Web Applications • Mobile Apps for Android and iOS • Ecommerce and Online Stores • SaaS Platforms and Portals • RPA and Process Automation Tech stack • Web: PHP, Laravel, ASP.NET Core, Node.js, Python • Mobile: Android, iOS, Flutter, React Native • Frontend: React, Vue, Next.js, HTML, CSS, JavaScript • Ecommerce: WooCommerce, Shopify, custom carts • Cloud and DevOps: AWS, Azure, Docker • Automation: RPA, API integration, workflow automation Why clients work with us • Clear communication and detailed documentation • Structured project management with milestones • Clean, scalable architecture and maintainable code • Long term support for enhancements and maintenance If you are planning a new product, improving an existing system, or need a reliable tech team for ongoing work, we would be happy to collaborate. Let us help you turn your idea into a stable, scalable digital product. less -
Hire ngxperts
We have a combined experience of around 30 years in different fields of Information Technology, we have experience in VOIP, Asterisk, Cisco Call Manager 4.x onwards, Cisco IP phones, MYSQL, PHP,We have a combined experience of around 30 years in different fields of Information Technology, we have experience in VOIP, Asterisk, Cisco Call Manager 4.x onwards, Cisco IP phones, MYSQL, PHP, less
