I help businesses ๐ฏ๐๐ถ๐น๐ฑ ๐ฎ๐ป๐ฑ ๐๐ฐ๐ฎ๐น๐ฒ ๐ต๐ถ๐ด๐ต-๐ฝ๐ฒ๐ฟ๐ณ๐ผ๐ฟ๐บ๐ฎ๐ป๐ฐ๐ฒ ๐ฝ๐น๐ฎ๐๐ณ๐ผ๐ฟ๐บ๐ that handle real-time communication, customer calls, and heavy user traffic- without reliability issues.
I specialize in ๐๐ฒ๐๐ข๐ฝ๐, ๐ฉ๐ผ๐๐ฃ, ๐ฎ๐ป๐ฑ ๐ฆ๐๐๐๐ฒ๐บ ๐๐ฟ๐ฐ๐ต๐ถ๐๐ฒ๐ฐ๐๐๐ฟ๐ฒ, managing everything from cloud infrastructure and CI/CD automation to real-time communication systems and scalable backend design.
With ๐ญ๐ฐ+ ๐๐ฒ๐ฎ๐ฟ๐ of experience across ๐ฉ๐ผ๐๐ฃ, ๐จ๐๐ฎ๐ฎ๐ฆ, ๐ฎ๐ป๐ฑ ๐๐๐ฎ๐ฎ๐ฆ ๐ฝ๐น๐ฎ๐๐ณ๐ผ๐ฟ๐บ๐, I ensure systems deploy smoothly, scale efficiently, and run reliably in production.
๐ช๐ต๐ฎ๐ ๐ ๐๐ผ
โข Set up and manage ๐ฐ๐น๐ผ๐๐ฑ infrastructure (๐๐ช๐ฆ)
โข Build ๐๐/๐๐ ๐ฝ๐ถ๐ฝ๐ฒ๐น๐ถ๐ป๐ฒ๐ (Jenkins, GitHub Actions)
โข Design and optimize ๐ฉ๐ผ๐๐ฃ systems (calling, IVR, routing)
โข Structure systems to handle increasing load and user demand
โข Fix issues like downtime, slow performance, and call quality problems
๐๐ฒ๐๐ข๐ฝ๐ & ๐๐น๐ผ๐๐ฑ ๐๐ป๐ณ๐ฟ๐ฎ๐๐๐ฟ๐๐ฐ๐๐๐ฟ๐ฒ
โข AWS infrastructure (๐๐๐ฎ, ๐ฆ๐ฏ, ๐๐ผ๐ฎ๐ฑ ๐๐ฎ๐น๐ฎ๐ป๐ฐ๐ถ๐ป๐ด, ๐๐๐๐ผ ๐ฆ๐ฐ๐ฎ๐น๐ถ๐ป๐ด)
โข CI/CD automation using ๐๐ฒ๐ป๐ธ๐ถ๐ป๐ / ๐๐ถ๐๐๐๐ฏ ๐๐ฐ๐๐ถ๐ผ๐ป๐
โข Docker for ๐ฐ๐ผ๐ป๐๐ฎ๐ถ๐ป๐ฒ๐ฟ๐ถ๐๐ฎ๐๐ถ๐ผ๐ป & ๐๐๐ฏ๐ฒ๐ฟ๐ป๐ฒ๐๐ฒ๐ (K8s) for scaling applications
โข Infrastructure automation using ๐ง๐ฒ๐ฟ๐ฟ๐ฎ๐ณ๐ผ๐ฟ๐บ (Infrastructure as Code)
โข Monitoring & logging using ๐๐น๐ผ๐๐ฑ๐ช๐ฎ๐๐ฐ๐ต
โข Designing systems for high availability and reliability
โข ๐ ๐ฎ๐ป๐ฎ๐ด๐ถ๐ป๐ด ๐๐ฒ๐ฟ๐๐ฒ๐ฟ๐, environments, and security
โข Scaling systems for heavy usage and real-time operations
โข ๐ง๐ฟ๐ผ๐๐ฏ๐น๐ฒ๐๐ต๐ผ๐ผ๐๐ถ๐ป๐ด production issues and improving performance
๐ฉ๐ผ๐๐ฃ & ๐๐ผ๐บ๐บ๐๐ป๐ถ๐ฐ๐ฎ๐๐ถ๐ผ๐ป ๐ฆ๐๐๐๐ฒ๐บ๐
โข VoIP systems using ๐ฆ๐๐ฃ (๐ฐ๐ฎ๐น๐น ๐๐ฒ๐๐๐ฝ ๐ฎ๐ป๐ฑ ๐ฐ๐ผ๐ป๐๐ฟ๐ผ๐น)
โข Call routing, IVR systems, and communication workflows
โข Platforms like ๐จ๐๐ฎ๐ฎ๐ฆ (๐๐ฒ๐ฎ๐บ ๐ฐ๐ผ๐บ๐บ๐๐ป๐ถ๐ฐ๐ฎ๐๐ถ๐ผ๐ป) ๐ฎ๐ป๐ฑ ๐๐๐ฎ๐ฎ๐ฆ (๐ฐ๐ฎ๐น๐น ๐ฐ๐ฒ๐ป๐๐ฒ๐ฟ ๐๐๐๐๐ฒ๐บ๐)
โข Managing how calls are connected, transmitted, and maintained
โข ๐๐ถ๐ ๐ถ๐ป๐ด ๐ถ๐๐๐๐ฒ๐ like call drops, delays, and poor audio quality
โข Improving overall ๐ฐ๐ฎ๐น๐น ๐๐๐ฎ๐ฏ๐ถ๐น๐ถ๐๐ ๐ฎ๐ป๐ฑ ๐ฝ๐ฒ๐ฟ๐ณ๐ผ๐ฟ๐บ๐ฎ๐ป๐ฐ๐ฒ
โข ๐๐ป๐๐ฒ๐ด๐ฟ๐ฎ๐๐ถ๐ผ๐ป with CRM, helpdesk, and business tools
๐ฆ๐๐๐๐ฒ๐บ ๐๐ฟ๐ฐ๐ต๐ถ๐๐ฒ๐ฐ๐๐๐ฟ๐ฒ
โข Designing systems that can handle more users without slowing down
โข Structuring backend systems for real-time communication platforms
โข ๐ ๐ฎ๐ป๐ฎ๐ด๐ถ๐ป๐ด ๐ต๐ถ๐ด๐ต ๐๐ฟ๐ฎ๐ณ๐ณ๐ถ๐ฐ and usage spikes
โข Designing ๐๐ฐ๐ฎ๐น๐ฎ๐ฏ๐น๐ฒ ๐ฎ๐ฟ๐ฐ๐ต๐ถ๐๐ฒ๐ฐ๐๐๐ฟ๐ฒ๐ (including microservices when needed)
โข Ensuring systems are reliable, efficient, and easy to maintain
๐ช๐ต๐ฎ๐ ๐ ๐๐ฎ๐ป ๐๐ฒ๐น๐ฝ ๐ฌ๐ผ๐ ๐ช๐ถ๐๐ต
โข Build and scale ๐ฉ๐ผ๐๐ฃ / ๐จ๐๐ฎ๐ฎ๐ฆ / ๐๐๐ฎ๐ฎ๐ฆ ๐ฝ๐น๐ฎ๐๐ณ๐ผ๐ฟ๐บ๐
โข Set up DevOps pipelines and cloud infrastructure
โข Improve system performance, stability, and efficiency
โข Fix deployment and production issues
โข Design systems ready for real-world growth
๐ง๐ฒ๐ฐ๐ต๐ป๐ผ๐น๐ผ๐ด๐ถ๐ฒ๐ & ๐ง๐ผ๐ผ๐น๐
โข DevOps & Cloud: AWS, CI/CD (Jenkins, GitHub Actions), Docker, Kubernetes, Terraform, CloudWatch
โข Communication: VoIP, SIP, real-time communication systems
โข Backend: Node.js, PHP (Laravel, Yii)
โข Frontend: React, Angular, Vue
๐๐ผ๐ ๐ ๐ช๐ผ๐ฟ๐ธ
โข Clean, automated deployments
โข Systems that perform reliably under load
โข Focus on long-term stability, not quick fixes
If youโre ๐ฝ๐น๐ฎ๐ป๐ป๐ถ๐ป๐ด ๐๐ผ ๐ฏ๐๐ถ๐น๐ฑ ๐ผ๐ฟ ๐๐ฐ๐ฎ๐น๐ฒ a VoIP, UCaaS, or CCaaS platform, ๐ณ๐ฒ๐ฒ๐น ๐ณ๐ฟ๐ฒ๐ฒ ๐๐ผ ๐๐ต๐ฎ๐ฟ๐ฒ ๐๐ผ๐๐ฟ ๐ฟ๐ฒ๐พ๐๐ถ๐ฟ๐ฒ๐บ๐ฒ๐ป๐๐. I can help you design a solution thatโs reliable, scalable, and production-ready.
VoIP
Kubernetes
Amazon Web Services
CI/CD
Amazon S3
Software Architecture
VoIP PBX
Amazon ECS
DevOps
Linux System Administration
Asterisk
Call Center Software
API Integration
Anish C.
Mohali, India
$22/hr
4.9
20 jobs
Recently setup VOIP (Yealink and Grandstream IP phones) in the CLOUD (3CX) for UK based company with more than 300 users in Office and Remotely with following features -
Desktop software for making and receiveing voice calls, sending adn receiveing SMS/MMS.
CAll monitoring
CAll recording
Call Transcripts
Call barging for training
Usage reports by users, teams
Dashboard to monitor active calls
Network security, Firewall implementation, Router and switches configurations.
Configuration of Firewalls including Sophos, Fortinet, Palo Alto, PFSense.
Cyber Security Services - include manage and mitigate the risk and impact of cyberattacks malware, phishing, ransomware, denial-of-service (DoS) and cross-site scripting (XSS)
o Configure and maintain 3CX, Asterisk PBX system.
o 3cx & Whatsapp Integration
o Microsoft Teams for FreePBX integrations.
oSetup Monitoring & Reporting for FreePBX
o VOIP applications integrations open-source using Asterisk software on Linux
o Setup & configuring 3CX server, Voice calling.
o Google Voice Business setup - VoIP
o VoIP/Asterisk/FreePBX/GoAutodial/vTiger/3CX Call center & BPO solutions setup
o Monitor the system for anomalies and issues
o Deal with cyberattacks, identify the most effective systems and preventive protocols to handle cyberattacks, malware, and viruses.
o Monitor networks for any suspicious activity.
o Configuration of various Firewalls including Sophos, Fortinet, Palo Alto, PFSense etc.
o Design and implement Firewall Fortinet ZTNA
o Microsoft Active Directory, Exchange Server, and SQL Server.
o Design, implement, and manage complex Active Directory infrastructures, including user management, group policies, and domain
controllers.
o Designing/troubleshooting of Campus Network including hardware devices, Cabling, and configuration.
o Installing & configuring Microsoft SCCM, WSUS, Print Server, and File Server.
o Managing Windows Servers including Active Directory, Domain Controller, Domain catalogue server, VPN, DNS, ADC, DHCP, WDS,
Backup, Terminal Server, Server Patching, Backup [ offsite/Onsite], web hosting, Cals / OS licenses, FTP/SFTP server configuration, Networking, Software deployment, Software restriction, Group Policy, IIS Server configuration, Disaster Recover,
o Hypervisors / VMware /vSphere setup/Configuration.
o Installing, configuring & managing Microsoft Exchange Server.
o Setup & configuring 3CX server, Voice calling.
o Backup provisioning, Different RAID configurations, Data restore.
o Setup & configuration of various Bio-Metric machines [ i.e., Time-Moto].
o Configuration of various Cisco Switches, routers, and firewalls.
o Configuration of Microsoft SQL Backup / restore.
o Microsoft Load Balancing, Clustering, NAS, High Availability.
o Setup Local, Network & wireless printers in LAN/WAN and print Server
o Network testing for vulnerabilities and providing solutions.
o Desktop configuration, network, mail client, internet, Outlook Express, Microsoft-outlook
o Installing configuration of Manage Engine [ MDM]
o Installing configuration of Safe 50 Account, Sage 50 Payroll, Google Suits, and Google Workspace.
o Server Room Patching, cabling, testing, DVR/NVR/ CCTV
o Troubleshooting of wired and wireless networks.
o Complete support for Microsoft Office 365, AWS, Azure platforms.
o Windows Server/System Administration.
o Backup Administration and Setup.
o Remote Monitoring Management Tools like Kaseya, Datto, ConnectWise or Ninja etc.
o Office365 Administration and Email Migration.
Experienced Salesforce Cloud Implementation Specialist, Salesforce Administrator understand and work with stakeholders to define system requirements and customize the platform.
Developed a wide range of websites for Ecommerce stores using technologies Xcart,Magento 2, Wordpress, WooCommerce,Opencart, React js, PHP, and MySQL for startup companies and small businesses.
Magento 2
Salesforce
3CX
Fortinet
VoIP PBX
Network Administration
Firewall
Router Operating System
Security Assessment & Testing
Cisco Router
Mail Server Implementation
Cybersecurity Monitoring
Server Administration
Evolve IP Call Center
FortiGate Firewall
Kamaldeep Singh K.
Mohali, India
$50/hr
5.0
322 jobs
Overview:
I am a seasoned Server and System Administrator with over 19 years of hands-on experience in Linux, Unix, Windows, and virtualization environments. My expertise spans comprehensive server management, storage solutions, database administration, and advanced troubleshooting. I specialize in designing, deploying, and optimizing high-availability infrastructure for enterprises across cloud and on-premise environments.
Core Competencies:
** Operating Systems: CentOS, RHEL, Ubuntu, Debian, CloudLinux, Windows
** Server Management: User/Disk/File management, RAID, LVM, ISCSI, Multipath, Routing, Networking, and Linux Team Bonding
** Backup & Recovery: System imaging, disaster recovery planning, kernel troubleshooting, and boot-level repair
Security & Hardening: FIREWALLD, UFW, IPTABLES, SELinux, TCP Wrappers, vulnerability assessment, and audit remediation
** System Monitoring: Proficient with WhatsUp Gold, NetFlow, IFTOP, IPTRAF, Nagios, Zabbix, and OSSEC
** Data Center Operations: Experienced with Cisco, HP, IBM, Dell, Supermicro servers, and both hardware and software RAID
** Network & File Services: NFS, VSFTPD, Samba, and advanced network tuning
** Storage Technologies: SAN/NAS administration with HP, IBM, Dell, EMC, NetApp, and Lenovo
** Virtualization Platforms: Virtualizor, KVM, Xen, VMware ESXi, Oracle VirtualBox, and VCenter Converter
** Web & Application Hosting: LAMP/LEMP stack setup (Linux, Apache/Nginx, MySQL, PHP), SSL/HTTPS (including Letโs Encrypt)
** Control Panels: WHM/cPanel, Webmin, Plesk, VirtualMin
** Cloud Platforms: AWS, Google Cloud Platform (GCP), DigitalOcean, OVH, Hetzner, and Contabo
** Server Architecture: NTP, SSH, DHCP, BIND, SQUID, Postfix, Sendmail, Kannel, HA-Lizard, DRBD, RSYNC, and XCP-NG
** Open Source Tools & Applications: WHMCS, OpenCloud, Nextcloud, Zulip, OpenVPN, Polr, Odoo, OpenMeetings, TOR, Keycloak, Rocket.Chat, Opencanary, eSignForms, Apache NiFi
** Linux Administration & Automation: Advanced command-line expertise, shell scripting, and automation framework deployment
** Streaming Solutions: Experience with Darwin Streaming Server, Wowza Streaming Engine, Xenon Streaming Suite (Encoder, Server, Mediator), and Crypton Headends
Additional Expertise:
** Cloudflare: CDN, DNS management, and web security optimization
** Moodle: Installation, management, and troubleshooting of Moodle LMS platforms
** DNS Management: Configuration and management of DNS zones and records across various providers
** n8n: Workflow automation implementation and maintenance
** Kobo Toolbox: Deployment and administration of Kobo Toolbox survey platforms
** Sucuri: Web security, malware scanning, and remediation
** OpenSIPS: VoIP signaling server setup and management
** Mattermost: Self-hosted team communication platform administration
** Travperium: Experience with Travperium platform hosting and support
** Email Marketing Services: Sendy, SendGrid, and Mailgun setup, configuration, and troubleshooting
Professional Strengths:
** Proven ability to design and maintain secure, scalable, and high-performance infrastructures
** Outstanding analytical and troubleshooting skills with quick turnaround
** Strong commitment to uptime, performance, and reliability under mission-critical operations
I am ready to deliver high-quality, dependable system administration support tailored to your project requirements.
CentOS
Ubuntu
Linux
SSL
Virtualization
Unix Shell
Red Hat Enterprise Linux
Unix System Administration
Amazon EC2
Linux System Administration
VMware ESX Server
Virtual Private Server
MySQL
cPanel
Plesk
Saif S.
Mohali, India
$35/hr
4.4
139 jobs
With 16+ years of experience, I help businesses build scalable, secure, and high-performance communication platforms. I specialize in end-to-end VoIP development, WebRTC applications, and AI-powered voice automation.
Core Expertise:
VoIP Development (Asterisk, FreeSWITCH, Kamailio, OpenSIPS)
WebRTC Apps (Audio/Video Calling, Live Streaming)
SIP, RTP, IVR, Call Routing & Softswitch (Class 4/5)
AI Voice Bots & AI Receptionist Solutions
UCaaS, CPaaS & API Integration (Twilio, Plivo, etc.)
Media Streaming & Low-Latency Systems
Scalable Server Architecture (AWS, Docker, Kubernetes)
CRM/ERP & Third-party Integrations
WebRTC Application Development
- Audio & Video Conferencing
- WebRTC, Jitsi, Twillio, OpenTok, Kurento
- Screen Sharing, Recording
- Online Tutoring and E Learning
- Telemedicine and Health Applications
- Video Broadcasting and Live Streaming
- SFU, STUN & Multiple Server architectures
VoIP Service:
- Asterisk/Freeswitch/OpenSIP/Kamilio setup & Configurations
- PBX System & Software Development
- Unified Communication Software
- CallCenter Softwares
- DID Management
- Auto/Predictive Dialer
- Mobile or Sip or VoIP Dialers
- Real Time billing software
- Distributed Server Architecture
- Load Balancing and failover setup
- Server Administration, Maintenance & 24*7 Support
AI-Integration and Automation
- Smart voice agents (inbound & outbound calls)
- AI chatbots for web, WhatsApp & apps
- Speech-to-text & text-to-speech integration
- Multilingual conversational systems
- Call automation (sales, support, reminders)
- AI receptionist and appointment setter
- AI content generation (text, image, audio)
- Knowledge base chatbots
- AI copilots for internal teams
- Integrated LLMs for context-aware, deterministic voice interactions
Technology, Platforms and languages expertise:
Frontend Web: Angular, React.js, Vue.js, PHP
Backend: Java, PHP, Laravel, Node.js, Python
WebRTC: Native, Kurento, Tokbox, Jitsi, janus,ย OpenVidu
VoIP: Freeswitch, Asterisk, Twillio, Kamilio, OpenSIP, FusionPBX, FreePBX, SIPJs
AI/ML: OpenAI, Whisper, ElevenLabs, n8n, Retell
VoIP Software
WebRTC
Kamailio
FreeSWITCH
Asterisk
Node.js
React Native
Android
Flutter
iOS Development
Android App Development
React
Web Development
Streaming Platform
Video Stream
Raghav S.
Mohali, India
$25/hr
4.6
6 jobs
We analyze our clients' business demands, recommend suitable solutions based on our subject matter experience, and create tailored solutions to meet their goals.
๐Expertise:
โ Generative AI, LLM models, chatGPT, openAI, Prompt engineering, Langchain
โ AI Bots (using Google Dialog Flow, Watson Assistant, RASA, AWS Lex)
โ Predictive Algorithm (e.g., Stock Market prediction)
โ Natural Language Processing (e.g., sentiment analysis)
โ Deep Learning (e.g., emotion detection)
โ Machine Learning (e.g., customer churning)
โ Computer Vision (e.g., Facial Recognition, Object Detection, and Recognition)
โ VAPI, Retell, Voicebot (IVR) using Twilio, Voximplant, CVG, Avaya, etc, and integrated voice bots on GCP CCAI and AWS Connect, Fine-tuning the LLM models for Classification, Named Entity Recognition (NER), Summarisation, Q&A, Sentiment Analysis, Recommendation system, Forecasting/Prediction models.
โ Classification Problems
๐Tools:
โ Languages: Python
โ Frameworks: TensorFlow, Keras
โ Cloud: Microsoft Azure, AWS, Watson
โ Machine Learning: Bayesian, Gaussian processes, PyTorch, Scikit, Tensorflow, regression models, SVC, SVM, classifier models, deep learning with neural networks (R-CNN, Mask-RCNN, SSD, YOLO), NumPy, Pandas
โ Computer Vision: OpenCV
โ NLP: NLTK, Spacy, Bayesian, NER, BERT, GPT3 (prompt engine DaVinci-instruct-beta and DaVinci), Context Analysis, Theme Analysis
โ Web Scraping/Automation using: BeautifulSoup, Scrapy, Selenium, Playwright, and AIOhttp.
โ Data Analysis and Visualization: Pandas, NumPy, Matplotlib, Seaborn, DocumentAI, Plotlib
Tell us what you need. Create your own job post or generate one with AI then filter talent matches.
Hire top talent fast
Consult, interview, and hire quickly, so you can meet the freelancers you're excited about.
Collaborate easily
Use Upwork to chat or video call, share files, and track project progress right from the app.
Payment simplified
Manage payments in one place with flexible billing options. Only pay for approved work, hourly or by milestone.
Don't just take our word for it
โUpwork provides an umbrella-level of security. I can see a talentโs work history and ratings. I can hold payments in escrow. I can communicate through Upwork Messages instead of working through my email address.โ
KD
Kim Darling
Emerald Tiger
โUpwork is the best platform to hire skilled professionals when we're not looking for a full-time employee. All the companies in our portfolio use Upwork to find talent across a wide range of fields.โ
DM
David Merry
Kinetic Investments
โOur very specific requirements can be a challengeโWith Upwork, weโre able to access a bigger community to ensure the success of our projects.โ
KK
Katja Krohn
Summa Linguae
How do I hire a VOIP Administrator near Mohali, on Upwork?
You can hire a VOIP Administrator near Mohali, on Upwork in four simple steps:
Create a job post tailored to your VOIP Administrator project scope. Weโll walk you through the process step by step.
Browse top VOIP Administrator talent on Upwork and invite them to your project.
Once the proposals start flowing in, create a shortlist of top VOIP Administrator profiles and interview.
Hire the right VOIP Administrator for your project from Upwork, the worldโs largest work marketplace.
At Upwork, we believe talent staffing should be easy.
How much does it cost to hire a VOIP Administrator?
Rates charged by VOIP Administrators on Upwork can vary with a number of factors including experience, location, and market conditions. See hourly rates for in-demand skills on Upwork.
Why hire a VOIP Administrator near Mohali, on Upwork?
As the worldโs work marketplace, we connect highly-skilled freelance VOIP Administrators and businesses and help them build trusted, long-term relationships so they can achieve more together. Let us help you build the dream VOIP Administrator team you need to succeed.
Can I hire a VOIP Administrator near Mohali, within 24 hours on Upwork?
Depending on availability and the quality of your job post, itโs entirely possible to sign up for Upwork and receive VOIP Administrator proposals within 24 hours of posting a job description.