VoIP Developers k zaměstnání
Zobrazuje 53 výsledků
Sponzorovaní freelanceři
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Zaměstnejte uživatele engkarimismail
engkarimismail engkarimismail
$50 USD / hod.
✅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 méně -
Zaměstnejte uživatele abusayed2004
abusayed2004 abusayed2004
$50 USD / hod.
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. méně -
Zaměstnejte uživatele nolk
Freelance engineer specializing in VoIP solutions, DevOps, networking, and virtualization. Experienced with Asterisk, FreeSwitch, OpenSIPS, Linux/Unix/BSD systems, and modern infrastructure. CCNP, VCP, and CKA certified, with strong skills in C/C++, Python, and shell scripting. Known for excellent troubleshooting,...Freelance engineer specializing in VoIP solutions, DevOps, networking, and virtualization. Experienced with Asterisk, FreeSwitch, OpenSIPS, Linux/Unix/BSD systems, and modern infrastructure. CCNP, VCP, and CKA certified, with strong skills in C/C++, Python, and shell scripting. Known for excellent troubleshooting, reliability, and clear communication. méně -
Zaměstnejte uživatele 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,...) méně -
Zaměstnejte uživatele 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. Speaks fluent English and Filipino (Tagalog). 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. méně -
Zaměstnejte uživatele 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. méně -
Zaměstnejte uživatele 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. méně -
Zaměstnejte uživatele RafimKs
Top 1% in the Freelancer.com Community. I am excited to offer 16+ years of solid experience in Physical & Virtual Server & Networking Platforms, System Administration, Network Administration,Managing Telecommunications Networks and Technical Strategy. Below are a few of my strong assets for your...Top 1% in the Freelancer.com Community. I am excited to offer 16+ years of solid experience in Physical & Virtual Server & Networking Platforms, System Administration, Network Administration,Managing Telecommunications Networks and Technical Strategy. Below are a few of my strong assets for your business: - Microsoft(Active Directory, DNS,DHCP, RDS,SQL Server(DB Admin),SharePoint, - Hyper-V, Exchange(All Versions &O365)Azure) - VMWare (ESXi, VCenter) - Citrix (XenApp, XenCenter) - Antivirus(Symantec(SEP),Mcafee(EPO),Kaspersky) - Linux (Ubuntu, CentOS,Debian) - Cloud(MS Azure,AMAZON AWS ,Google GCP,OVH and Digital Ocean) - Storage(Synology,QNAP,FreeNAS,WD,Dell and HP) - VOIP ( Avaya,3CX,Yeastar,XCally,GrandStream & FreePBX) - Firewalls (Fortinet, Sonicwall, Sophos, ASA,WatchGuard&PFSense) - Wireless(Cisco,Unify,Grandstream,Fortigate) - Routers (Cisco, Ubiquiti) - Servers (HP Proliant Servers) & (Dell/EMC Servers) I am happily available anytime using secure remote support or walk you through the steps via Freelancer chat .I am looking to show each client my worth to build a long relationship. Get started by clicking on "Hire Me" méně -
Zaměstnejte uživatele Hadiibaba
Experienced and adaptable professional skilled in web development, virtual assistance, data scraping, and technical support. I deliver efficient solutions tailored to your business needs, ensuring accuracy, confidentiality, and timely results. Let’s work together to streamline your workflow and achieve your goals!Experienced and adaptable professional skilled in web development, virtual assistance, data scraping, and technical support. I deliver efficient solutions tailored to your business needs, ensuring accuracy, confidentiality, and timely results. Let’s work together to streamline your workflow and achieve your goals! méně -
Zaměstnejte uživatele Time2Sync
Welcome to Time2sync, your go-to partner for innovative technology solutions. Our dedicated team of experts excels in a variety of technologies, including ASP.net, C#, Linux servers, MSSQL, MySQL, HTML, PHP, and full-stack development. With a proven track record, we have successfully extended our capabilities to...Welcome to Time2sync, your go-to partner for innovative technology solutions. Our dedicated team of experts excels in a variety of technologies, including ASP.net, C#, Linux servers, MSSQL, MySQL, HTML, PHP, and full-stack development. With a proven track record, we have successfully extended our capabilities to mobile app development for both Apple iOS and Android platforms. Services:⭐⭐⭐⭐⭐ ASP.net and C# Development: Tailored web applications and services to meet your unique requirements. Linux Server Management: Reliable solutions for efficient and secure server environments. MSSQL and MySQL Database Solutions: Database management and optimization for seamless operations. HTML and PHP Web Development: Front-end and back-end expertise for dynamic and user-friendly websites. Full-Stack Development Services: Comprehensive solutions covering the entire development stack. Mobile App Development (iOS and Android): Engaging and user-centric applications for diverse business needs. Skilled TM méně
