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Asterisk PBX is an open-source software platform that turns a regular computer into a communications server. It enables businesses to create custom VoIP (Voice over IP) telephony solutions, such as call centers, voicemail systems, and interactive voice response (IVR) menus. With Asterisk PBX, companies can integrate advanced telephony features into their existing systems, offering flexibility and scalability for a wide range of communication needs.
Looking to enhance your business communications with custom VoIP solutions? The best way to find a quality Asterisk PBX Developer is on Freelancer. Freelancer has the widest range of skilled Asterisk PBX Developers for hire, ready to tailor telephony solutions to your specific needs. With Freelancer's Milestone Payment system, you can be confident that you only pay when you're 100% satisfied. Get started by
Publica tu proyecto gratis y conéctate con Asterisk PBX Developers profesionales listos para comenzar hoy. Compara ofertas, calificaciones y portafolios y solo paga cuando estés satisfecho con el trabajo.
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51+
Asterisk PBX Developers en línea
Sin pagos adelantados: paga únicamente cuando estés satisfecho con el trabajo entregado
7,9
7,9
99%

Hetauda, Nepal
$50 USD por hora
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.

7,9
7,9
97%

CHERTHALA, India
$50 USD por hora
I have 12 years of experience in Linux and Cloud server management which includes Monitoring, Security, and Optimization. Designed, configured, and managed public/private cloud infrastructures utilizing Amazon Web Services (AWS), including Elastic Cloud Compute (EC2), Virtual Private Cloud (VPC), Public and Private Subnets, Security Groups, Route Tables, Elastic Load Balancer, Cloud Watch and IAM. Implemented AWS high availability using AWS Elastic Load Balancing (ELB), which performed a balance across instances in multiple Availability Zones. AWS deployment using Ansible and Terraform, also deployed, and administered Open stack services. Configuring Ansible to manage AWS environments and automate the build process for core AMIs (Amazon Machine Image) used by all application deployments including Auto scaling and Cloud formation scripts. Worked with Docker on multiple cloud providers, from helping developers build and containerize their application (CI/CD) to deploying either on public or private cloud. Played a major role in building Docker images; create build and deployment configurations to deploy applications using Jenkins onto the Kubernetes cluster. Deployed and configured Elastic search ELK, Logstash and Kibana (ELK) for log analytics, full text search, application monitoring in integration with AWS Lambda and CloudWatch. Used Kubernetes to deploy scale, load balance, scale and manage Docker containers with multiple namespace versions. Troubleshooting the network issues involving TCP/IP, LAN/WAN networking, DNS, DHCP, SMTP, SNMP, netstat and monitored the servers and Linux scripts regularly and performed troubleshooting. Monitoring of the servers through Nagios, Icinga2, Zabbix I can handle cloud platform setup and Network management. I'm an expert in Website and e-mail Migration. I also have experience on VMware. Cloud Services: Amazon web services (AWS) , Gcloud , Digitalocean , Scaleway , Azure , Rackspace , Linode etc... My areas of expertise are: Linux, FreeBSD, Windows, Asterisk, FreePBX, NFS, CIFS, VMware, Xen, LVM, Apache, Nginx, Tomcat, Zimbra, Qmail, Sendmail, Postfix, Exim, LVM in Linux, Jabber, Openfire, FTP, Bind, PowerDNS, Pfsense, IPtables, Zabbix, Nagios, MysQL, LDAP, SquidFreeNAS, IPSEC, OpenVPN, PPTP, L2TP TECHNICAL SKILLS Operating systems: Linux, Windows Protocols: TCP/IP, FTP, DHCP, HTTP, SMTP, POP, IMAP Application/Web Servers: Apache, Nginx, Litespeed Mail Servers: Postfix, exim, sentmail, zimbra, iredmail

7,9
7,9
99%

Malappuram, India
$60 USD por hora
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"

7,8
7,8
99%

Karachi, Pakistan
$50 USD por hora
After getting 14 years of experience in System and IT administration along with multiple certifications, I am confident enough for providing you a perfect solution to your technical issues and projects from starting to the completion. I would be available on daily basis as required and full time available on weekends. Having a flexible and friendly nature, you would find me very cooperative and dedicated to your work. I am proficient in the following areas: Cloud Computing ---> AWS (EC2, RDS, VPC, ECS, EKS, S3, EFS, Cloudfront, Elastibeanstalk, etc) Cloud Computing ---> Azure (VM's, Vnet, Scaleset, Function Apps, App Services, CosmosDB, FlexibleDB, AKS, Blob Storage, etc..) Containerization ---> Docker, Docker-compose, Kubernetes DevOps ---> Jenkins, Bitbucket, Github, Terraform, Ansible, Python Virtualization ---> Vmware Vsphere High Availability & Disaster Recovery ---> Veeam Backup & Replication Windows Server ---> Active Directory, File Services, WDS Mail Server, Database Server ---> Exchange, Mdaemon VOIP ---> Elastix, Freepbx Website Development ---> Wordpress, PHP, HTML, CSS, Javascript

9,2
9,2
100%

BANGKOK, Thailand
$130 USD por hora
Hi, I’m Marjan, Website & Software Developer with 16 years of experience and 4,400+ successful projects delivered worldwide. I help businesses build fast, secure, professional and conversion-focused websites, eCommerce stores, custom web applications, booking systems, dashboards and scalable digital platforms. My expertise includes: • WordPress, Elementor & Custom Theme/Plugin Development • Shopify Store Design, Setup & Customization • Full-Stack Web Development • SaaS, MVP & Custom Web Application Development • Booking Funnels, Lead Generation Forms & Dashboards • PHP, JavaScript, HTML, CSS & API Integrations • Wix, Webflow & Business Website Development • Technical SEO, Speed Optimization & Website Maintenance What you can expect when working with me: • Clear and professional communication • Clean, maintainable and scalable work • Careful attention to detail • On-time delivery and long-term support Whether you need a business website, Shopify store, WordPress development, custom platform, SaaS MVP, booking funnel or ongoing website support, I can help you plan, build and launch it properly. Let’s discuss your project and create something that works for your business.

9,0
9,0
100%

South Delhi, India
$50 USD por hora
Mandlaus Group Pvt. Ltd. is a Top-Rated and Preferred Freelancer.com agency with 22+ years of experience on the platform. We build high-quality, production-ready software that is reliable, scalable, and secure. We deliver great work that creates real value for our clients. 🏆 1500+ projects completed ⭐️ All 5-star reviews ⏰ 100% on-time 💰 100% on-budget ✅ 100% completion rate 🤝 30% re-hire rate 🎂 On Freelancer since 2004. We are proud Microsoft Partner and IBM Partner, delivering enterprise-grade solutions that meet global standards in performance, security, and compliance. We can bring your vision to reality by transforming your ideas into powerful, scalable, and high-performance digital solutions. Our focus is to deliver exceptional quality with clear communication, disciplined execution, and strict adherence to timelines and budgets, so you gain not just software, but a reliable technology foundation you can confidently grow on. ➡️ Our services: ✅ Enterprise Software Development ✅ Web Application Development ✅ Mobile App Development (iOS, Android, Cross-Platform) ✅ Legacy System Modernization ✅ API Development & Integration ✅ System & Third-Party Integration ✅ Cloud Application Development & Migration ✅ AI Integration ✅ Data Analytics & Business Intelligence ✅ Application Maintenance & Support ✅ QA, Testing & Performance Engineering ✅ DevOps & CI/CD ✅ IT Consulting & Solution Architecture ➡️ Deliverables & Outputs: ✅ Enterprise SaaS Platforms ✅ Custom Web Portals & Dashboards ✅ Admin Panels & Backend Systems ✅ Mobile Applications (Native & Hybrid) ✅ RESTful & GraphQL APIs ✅ API Documentation & Technical Documentation ✅ Cloud-Native Applications ✅ AI-Powered Automations ✅ Data Pipelines & BI Dashboards ✅ System Architecture Documentation ✅ CI/CD Pipelines & Automated Deployment Setups ✅ Refactored & Modernized Legacy Systems ✅ Ongoing Optimization & Support ➡️ Technical Expertise: ✅ Programming Languages: PHP, JavaScript, TypeScript, Python, Java, C#, Golang, Ruby ✅ Frontend Development: HTML, CSS, JavaScript, React.js, Next.js, Vue.js, Angular, Svelte, React Router V7, Tailwind CSS, Bootstrap. ✅ Backend Development: Laravel, Symfony, Core PHP, Express, Nest, Django, Flask, Spring, Spring Boot, ASP.NET Core, Echo, Gin, Fiber, Ruby on Rails, Firebase ✅ Mobile App Development: React Native ✅ Cloud Platforms: AWS, GCP, Azure, IBM Cloud, Vercel, Digital Ocean, Heroku, Netlify ✅ Databases: PostgreSQL, MySQL, MariaDB, SQL Server, MongoDB, Apache Cassandra, Firebase Firestore ✅ DevOps: Docker, Github Actions ✅ Version Control: Git, GitHub, GitLab ✅ Payment Gateways: Stripe, Paypal, Razorpay ➡️ Communication & Collaboration: ✅ We communicate fluently in English and Hindi, ensuring clarity in technical documentation, business discussions, and stakeholder reporting. If you need a reliable, process-driven technology partner with a flawless execution record, Mandlaus Group Pvt. Ltd. is ready to build, optimize and scale your next solution.

9,2
9,2
96%

Jaipur, India
$49 USD por hora
⭐⭐⭐⭐⭐ CnELIndia: A Premier Web and App Development Enterprise With over 18 years of industry experience, CnELIndia stands as a top-rated authority in web and app development. Our commitment to hard work is evident in our consistent delivery of projects that meet both time and budget constraints. Our portfolio of success is backed by glowing testimonials from over 743 satisfied clients. We specialize in a broad spectrum of technologies including PHP, WordPress, WooCommerce, and data scraping, with a particular expertise in React Native. Our dedicated team is driven by innovation and a passion for crafting cutting-edge digital solutions.

9,0
9,0
97%

NSR, Pakistan
$30 USD por hora
Hi, I’m Khalid, founder of a senior development team specializing in high-performance web & mobile applications using modern JavaScript technologies. With 15+ years of development experience and a team of expert engineers, we build scalable, secure, and maintainable software that drives business growth. I have completed about 96% Projects successfully. 4% are also completed from our end. They counted incomplete because clients couldn't mark completed and left without feedbacks. If you want to know about my client's views go through their feedbacks from last 8 years or so not just first page. WHY YOU CHOOSE ME? 100% Client Satisfaction 100% Money Back Guarantee. No Advance Payment FLEXIBLE POSSIBLE PAYMENT TERMS: I promise to deliver the project before any PAYMENT is done. I also offer to start the job and show you the progress without project being awarded so if are satisfied with initial progress then you can award officially. Some Wordpress sites I did recently https://culina.au https://vgfoodstory.com Genesis theme http://mecs.nl https://hotelkareldestoute.nl/ http://teleworldsolutions.com/ http://ancillarymedsolutions.com https://www.bnbisrael.com/, Elementor Based sites built https://eurekaprint.com.au https://acm-audio.de/ https://clikdigital.com.au Codigniter websites I did http://paystubsnow.com http://validgrad.com/beta/ http://kryptoshare.com/beta http://playblackjacknow.com/beta/ Laravel projects http://keysender.co.uk/ http://www.pricespectre.com/ https://www.qtyman.com/ http://brouhahasound.com/

8,6
8,6
88%

lahore, Pakistan
$25 USD por hora
I am a software developer with 490+ completed projects on Freelancer, helping businesses build, improve, and integrate software that solves real business problems. My work focuses on custom web applications, API integrations, automation, business systems, and existing application enhancements. Whether it's connecting third-party services, automating repetitive workflows, fixing complex issues, or adding new features to an existing system, I focus on delivering practical, reliable solutions. What I Can Help With • API integrations and third-party services • Business automation and workflow development • CRM integrations and custom business tools • Web applications and admin dashboards • AI integrations and automation solutions • Payment gateway integrations • Data processing, reporting, and import/export tools • Bug fixing, maintenance, and feature development Technologies PHP, Classic ASP, ASP.NET, C#, Python, JavaScript, MySQL, SQL Server, WordPress, Shopify, REST APIs, Google APIs, OpenAI, Stripe, PayPal, Twilio, Make.com, n8n, Google Sheets, and other business integrations. I enjoy working on projects that involve solving technical challenges, integrating different systems, and improving existing software. I believe in clear communication, realistic timelines, and writing maintainable code that clients can continue to build upon. If you're looking for someone who can understand your requirements, troubleshoot complex issues, and deliver reliable solutions, I'd be happy to discuss your project.
An Asterisk PBX developer is a telephony engineer who designs, configures, and customizes Asterisk-based phone systems to handle calls, IVR menus, voicemail, conferencing, and VoIP routing for businesses. Hiring a skilled Asterisk PBX developer means getting a fully working open-source communications platform that scales with call volume, integrates with your CRM, and reduces dependency on proprietary phone hardware.
Asterisk is the world's most widely deployed open-source PBX framework, powering call centers, hosted VoIP providers, and enterprise telephony systems. A freelance Asterisk developer translates business call flows into working dial plans, SIP trunk configurations, and integrations that route every inbound and outbound call exactly the way your operations require.
The commercial value is direct: lower telephony costs, full control over call data, and a phone system that behaves the way your team works rather than the way a vendor dictates. Whether you need a small office PBX or a multi-tenant carrier-grade platform, an experienced Asterisk engineer delivers a stable, secure, and maintainable build.
Asterisk PBX freelancers handle the full stack of VoIP and telephony work, from kernel-level SIP debugging to end-user web portals. Common deliverables include:
A capable Asterisk PBX developer works fluently across the surrounding telephony stack. Look for hands-on experience with:
Asterisk underpins voice infrastructure across many sectors. Typical projects come from:
Strong Asterisk freelancers combine telephony fundamentals with solid Linux and scripting skills. Look for verifiable experience with SIP debugging, real production deployments, and integrations beyond stock FreePBX modules. Portfolios should show custom dial plans, AGI scripts, or multi-tenant builds rather than generic GUI configuration.
Useful evaluation signals include dCAP (Digium Certified Asterisk Professional) credentials, contributions to Asterisk-related open-source projects, and documented experience with carrier-grade SIP trunking. Ask candidates to walk through a recent troubleshooting case end to end.
Sample interview questions you can use directly:
Freelancer.com gives you access to a global network of VoIP engineers, SIP specialists, and open-source telephony developers with verified profiles, ratings, and portfolios. You can review past Asterisk projects, compare bids from independent developers and small VoIP teams, and choose the candidate whose experience best matches your call flow requirements.
Because you set the brief and budget, you receive competitive bids and stay in control of scope. Milestone Payments hold funds securely until each deliverable is approved, which matters on telephony projects where uptime and call quality must be proven before sign-off. The scale of freelancers on Freelancer.com means you can typically shortlist qualified Asterisk developers within hours of posting.
Hiring an Asterisk PBX developer works best when you treat the project brief as a specification rather than a wishlist. Telephony work touches networking, security, and integrations, so the more precisely you describe your call flows and environment, the closer the bids will match real cost and timeline. The process below walks through posting, reviewing, and awarding the project.
The quality of your project post directly determines the quality of bids you receive. A clear Asterisk brief filters out generic VoIP generalists and attracts engineers who genuinely understand SIP, dial plans, and your specific integration needs. Head to the
Bids on Asterisk projects are short proposals that reveal how each developer interprets your call flow and environment. Read past the price line — strong proposals describe the proposed Asterisk version, dial plan structure, and integration approach, and they ask clarifying questions about your SIP carrier or CRM. Use the project chat to probe the candidates whose proposals show real understanding.
The final decision combines proposal quality with the evidence on each freelancer's profile. For Asterisk work, look for consistency across multiple completed VoIP projects rather than a single impressive build. Past client reviews that mention call quality, uptime, and post-launch support are particularly valuable.
A straightforward FreePBX installation with SIP trunks, extensions, and basic IVR can be completed in a few days. Custom multi-tenant platforms, CRM integrations, or call center builds with predictive dialing usually take several weeks depending on the integrations and reporting required.
A VoIP engineer focuses broadly on voice networks, SIP signaling, codecs, and carrier interconnects. An Asterisk PBX developer is a specialist VoIP engineer with deep expertise in the Asterisk framework specifically — writing dial plans, AGI scripts, and FreePBX modules. For projects centered on Asterisk or FreePBX, hire the specialist.
Yes. Freelancers on Freelancer.com take on both one-time projects, such as SIP trunk troubleshooting or IVR redesigns, and ongoing retainers for monitoring, patching, and feature additions. You can structure either as a fixed-price project with milestones or as an hourly engagement.
Asterisk runs on any Linux server, including cloud VPS instances, dedicated hardware, and on-premise servers. Your developer can recommend the right environment based on expected concurrent calls, recording storage, and latency to your SIP carrier.
Most experienced Asterisk developers handle CRM integration using AMI, ARI, AGI, or REST APIs. Common integrations include click-to-call, inbound screen pops, automatic call logging, and call recording links attached to contact records.

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