Hi! I'm a highly skilled IT professional with proven experience in Cybersecurity, Microsoft 365 cloud services, and MSP-level technical support. I hold the Microsoft Certified: Azure Fundamentals (AZ-900) and (ISC)² Certified in Cybersecurity (CC), giving me a solid foundation to protect, support, and scale your IT infrastructure.
🔐 Cybersecurity Expertise:
(ISC)² Certified in Cybersecurity – strong understanding of risk management, access control, and incident response
Vulnerability assessments and remediation
Endpoint protection, anti-malware, and threat mitigation
Data Loss Prevention (DLP), encryption, compliance (GDPR, HIPAA, etc.)
SIEM tools, log analysis, and user behavior monitoring
☁️ Microsoft 365 / Azure Cloud:
AZ-900 Certified – skilled in Azure cloud concepts, security, governance, and pricing
Microsoft 365 tenant setup and administration (Exchange Online, Teams, SharePoint, Intune)
MFA, Conditional Access, and security baselines
PowerShell automation and Microsoft Secure Score optimization
🛠️ MSP Technical Support:
RMM platforms: Datto, ConnectWise, N-able, Atera
Remote desktop support and end-user troubleshooting
Device management, patching, and onboarding/offboarding
SLA-focused ticket handling with clear documentation
Backup & disaster recovery configuration
📈 Why work with me?
✅ Certified and continuously upskilling
✅ Fast, clear communication
✅ Detail-oriented and security-first mindset
✅ Dedicated to client success and long-term partnerships
If you're looking for someone who can secure your systems, streamline your Microsoft 365 environment, and deliver responsive IT support, I’m here to help.
Tech & IT
Network Administration
Incident Management
Office 365
Technical Support
Phone Communication
Microsoft Office
System Security
Cybersecurity Management
Christian G.
Glendale, California
$50/hr
4.9
71 jobs
I help U.S. businesses navigate SMS approval, deliverability, and compliance requirements - reducing the risk of carrier rejections, blocked traffic, and regulatory issues.
I specialize in A2P SMS compliance and deliverability, including 10DLC registration, Toll-Free Verification (TFN), and TCPA/CTIA consent audits, as well as diagnosing carrier-level delivery problems. My work focuses on aligning SMS programs with current carrier and regulatory expectations so they can operate and scale responsibly in the U.S. market.
If your messages are being rejected, filtered, or delayed - or you’re unsure whether your consent flow and use case will withstand carrier or legal review—I can help assess and correct the underlying issues.
What I Do
• 10DLC brand & campaign registration (new submissions, rejections, reclassifications)
• Toll-Free Verification (TFN) setup and resubmissions
• TCPA / CTIA compliance audits (opt-in flows, disclosures, opt-out handling)
• SMS deliverability diagnostics (carrier filtering, content flags, throughput limits)
• Platform-specific guidance (Infobip, Twilio, GoHighLevel, ClickSend, SimpleTexting)
• Compliance-aware SMS automation (webhooks, triggers, rate-limiting, quiet hours)
SMS
Lead Generation
Mobile Marketing
Compliance Consultation
Regulatory Compliance
Mobile Marketing Automation
Twilio
Kamil S.
Swiecie, Poland
$70/hr
5.0
1 jobs
Hi , With 8+ years of experience in VoIP engineering and telecom infrastructure, I help businesses build, customize, and scale reliable call center and communication platforms ranging from small business deployments to carrier-grade environments.
I specialize in designing high-performance VoIP systems, advanced dialer solutions, telecom billing platforms, and cloud-based communication infrastructures that are secure, scalable, and cost-effective.
⭐️ What I Can Help You With
1. VoIP & PBX Solutions
- Asterisk, FreePBX, FreeSWITCH, Elastix, Issabel, FusionPBX
- 3CX, PBXware, VoIPOffice
- SIP Trunking & Carrier Integrations
- Multi-server VoIP architecture
- High Availability (HA), clustering, failover, and load balancing
- Security hardening and system optimization
2. VICIDial & Call Center Development
- Complete Inbound, Outbound, and Blended Call Center Setup
- VICIDial installation, customization, and troubleshooting
- Custom campaign logic and workflow development
- Agent interface redesign and UI/UX enhancements
- Custom reports and dashboards
- VICIBox multi-server clustering
- Voice broadcasting and predictive dialing solutions
3. Asterisk Development
- Advanced dialplan design
- AGI scripting and custom applications
- IVR development and automation
- Call routing optimization
- Conference solutions and WebRTC integrations
- Custom webphone development
4. CRM & API Integrations
- Twilio, Telnyx, SignalWire, Bandwidth, Plivo, VoIP.ms
- CRM integrations and lead management systems
- REST API development and automation
- Webhook and real-time data synchronization
- Third-party call transfer solutions
- TrackDrive and custom lead posting integrations
5. Telecom Billing Platforms
- A2Billing
- ASTPP
- VOS3000
- Magnus Billing
⭐️Services include:
- Billing customization
- CDR processing
- Multi-tenant deployments
- Reseller management systems
- Callback and IVR customization
1. AI Voice Agents & Automation
- ElevenLabs
- Vapi
- AI-powered voice assistants
- Conversational AI integrations
- Voice workflow automation
2. SMS Solutions
- Bulk SMS platforms
- SMS broadcasting systems
- Two-way SMS applications
- CSV-based bulk messaging portals
- Twilio, Telnyx, SignalWire, Bandwidth, and VoIP.ms integrations
⭐️ Supported VoIP Providers
Extensive experience integrating with major telecom carriers and providers, including:
Twilio, Telnyx, SignalWire, VoIP.ms, Bandwidth, Flowroute, RingCentral, Nextiva, Plivo, Anveo, DIDLogic, IDT Express, SIP.US, Vitelity, Voxbeam, Telus, Nexmo, QuestBlue, Switch2VoIP, and many others.
⭐️ Why Clients Hire Me
✔️ 9+ Years of Specialized VoIP Experience
✔️ Deep Asterisk & VICIDial Source-Code Expertise
✔️ Carrier-Grade Deployments & Multi-Server Architectures
✔️ Strong API Integration & Automation Skills
✔️ Fast Troubleshooting & Performance Optimization
✔️ Reliable Communication & Long-Term Support
Whether you need a new VoIP deployment, VICIDial customization, telecom billing platform, AI voice integration, or a complete call center solution, I can deliver a stable, scalable, and production-ready system tailored to your business needs.
Le'ts have a chat !
Asterisk
FreePBX
VoIP Administration
System Administration
Linux
Linux System Administration
FreeSWITCH
A2Billing
Kamailio
SSH
TCP/IP
VoIP PBX
VoIP
MikroTik RouterOS
Pankaj K.
Delhi, India
$45/hr
4.9
116 jobs
Principal Full-Stack Platform Architect | Telecom, AI Voice, SaaS & Cloud
I help startups, telecom providers, BPOs, enterprises, and SaaS companies design, build, deploy, and scale production-ready software platforms.
With 20+ years of engineering experience and 90+ successful Upwork projects, I take complete ownership of the engineering lifecycle from solution architecture and UI/UX implementation to backend services, APIs, AI integration, telecom infrastructure, DevOps, cloud deployment, documentation, and long-term production support.
Unlike specialists who only focus on one layer of the stack, I build complete business platforms that are scalable, maintainable, secure, and production ready.
Whether you need a communication platform, AI Voice Agent, SaaS application, customer portal, enterprise dashboard, workflow automation, or cloud-native backend, I can architect and deliver the complete solution.
What I Build
Enterprise SaaS Platforms
I design and develop complete SaaS products including:
Multi-tenant SaaS applications
Customer portals
Admin dashboards
CRM & ERP platforms
Contact Center (CCaaS)
Hosted PBX & UCaaS
Workflow automation platforms
AI-powered business applications
Internal enterprise systems
From MVP to enterprise-scale production deployments.
Full-Stack Software Development
I provide complete product engineering across frontend, backend, APIs, databases, cloud infrastructure, and production deployment.
Frontend:
React
Next.js
Vue.js
TypeScript
Tailwind CSS
Material UI
Responsive Web Applications
Progressive Web Apps (PWA)
Mobile-first UI
Backend:
Node.js
NestJS
Python
FastAPI
Django
Laravel
Go
PHP
Database
PostgreSQL
MongoDB
MySQL
Redis
API Development
REST APIs
GraphQL
WebSockets
OpenAPI / Swagger
OAuth
JWT
MCP Servers
Webhooks
Third-party integrations
AI Engineering & Intelligent Automation
I help businesses integrate AI into production systems—not just prototypes.
I build:
AI Voice Agents
AI Receptionists
AI Customer Support
AI IVR Systems
RAG Applications
Agentic AI Systems
Knowledge Assistants
Internal AI Platforms
AI Workflow Automation
AI Document Processing
AI Search Platforms
AI Technologies
OpenAI
Claude
Gemini
Deepgram
ElevenLabs
LiveKit
LangChain
LangGraph
MCP
Prompt Engineering
Model Optimization
Vector Databases
Realtime Voice APIs
Telecom & Communication Platforms
Telecom remains one of my strongest engineering specialties.
I build complete communication platforms not just PBX installations.
Technologies
FreeSWITCH
Asterisk
FusionPBX
FreePBX
VICIdial
SIP
RTP
WebRTC
SIP.js
ESL
AGI
AMI
ARI
Services
Multi-tenant PBX
Hosted PBX
Contact Center (CCaaS)
UCaaS
AI Voice Platforms
Softphones
Predictive Dialers
Progressive Dialers
Call Recording
Call Analytics
IVR Development
Queue Management
DID Provisioning
Carrier Integration
SBC Integration
Telecom Billing
White-label Telecom Platforms
Cloud Infrastructure & DevOps
I deploy highly available production environments.
Infrastructure
Linux
Docker
Kubernetes
Terraform
Nginx
HAProxy
AWS
Azure
Google Cloud
DevOps
CI/CD Pipelines
GitHub Actions
GitLab CI
Containerization
Monitoring
Logging
Auto Scaling
Production Deployment
Release Management
Monitoring
Prometheus
Grafana
Loki
Alerting
Health Checks
Performance Optimization
Architecture & Technical Leadership
I frequently work as a technical lead and solution architect.
Services include:
Solution Architecture
Software Architecture
System Design
Database Design
API Architecture
Microservices
Event-driven Architecture
Multi-tenant Architecture
High Availability
Disaster Recovery
Security Architecture
Performance Optimization
Documentation & Project Delivery
Beyond engineering, I help clients organize and successfully deliver projects.
I prepare:
Software Architecture Documents
Technical Design Documents
API Documentation
Swagger / OpenAPI Specifications
Statements of Work (SOW)
Functional Specifications
BRD
PRD
Deployment Guides
Infrastructure Documentation
QA Plans
Technical Proposals
Project Estimates
Delivery Roadmaps
I also work comfortably with:
Jira
ClickUp
Trello
Azure DevOps
GitHub Projects
Linear
Confluence
Notion
Recent Projects
Enterprise Multi-tenant CCaaS Platform
AI Voice Agent using OpenAI Realtime API
Telecom ERP Platform
Hosted PBX Platform
FusionPBX Custom Development
FreeSWITCH Call Routing Engine
Enterprise AI Knowledge Platform
AI Workflow Automation
CRM Integrations
Telecom Billing Platform
WebRTC Calling Platform
Call Center Analytics Dashboard
Healthcare Communication Platform
Law Firm AI Automation
Customer Support Automation Platform
Why Clients Hire Me
✔ 20+ years of software engineering experience
✔ 90+ successful Upwork projects
✔ End-to-end ownership from architecture to production
✔ Full-stack development across frontend, backend, APIs, databases, AI, and cloud infrastructure
✔ Deep expertise in FreeSWITCH, Asterisk, FusionPBX, SIP, WebRTC, CCaaS, and UCaaS
✔ Production AI engineering using OpenAI, Claude, Gemini, LangChain, Lang
Solution Architecture
VoIP Software
VoIP Administration
VoIP PBX
FreeSWITCH
Asterisk
VICIDIAL
FreePBX
Session Initiation Protocol
Call Center Software
CRM Automation
Full-Stack Development
AI Agent Development
AI App Development
OpenAI Codex Prompt
Large Language Model
OpenAI API
Docker
NestJS
Terraform
Jay B.
Lehigh Acres, Florida
$110/hr
4.6
194 jobs
Customer support platforms get messy fast. Bad ticket routing, no automation, agents answering the same questions 50 times a day. I fix that.
Zendesk, Intercom, and Gorgias specialist. 16 years in support operations and 500+ helpdesk implementations shipped. Founder of Smart Instinct (Zendesk Advanced Tier Partner, Gorgias Solutions Partner, Intercom Solution Partner) and the senior consultant on every engagement.
Recent clients: SF Marathon (56% chat deflection on Zendesk), StraighterLine (online education, 150,000+ learners), Blockchain (crypto platform), ThighPro, and Genesis Digital (Intercom + custom Discord).
I first ran support teams for ecommerce and SaaS companies, then moved into platform implementation full-time. That background matters because I have sat in the chair your agents sit in. I build systems for how your team actually works, not how a vendor's demo makes it look.
What I do
Zendesk, Intercom, and Gorgias implementation and migration. Full implementations and configurations for Zendesk, Intercom, Gorgias, Freshdesk, Freshservice, Help Scout, Helpshift, Tidio, RingCentral, and Aircall. Data migrations between platforms, multi-channel integration across email, chat, SMS, and social, and clean handoffs with documentation your team can actually use.
Workflow automation and ticket routing. Custom automation rules, smart ticket routing, SLA management, escalation workflows, macro and template libraries, and business rules built around your real support volume patterns, not generic templates.
AI implementation and chatbot development. Set up and training for Zendesk AI, Intercom Fin, Gorgias AI Agent, and Pylon AI. Intent mapping, conversation design, brand voice tuning, and AI-enhanced routing that handles the repetitive stuff so your agents focus on the work that actually needs a human.
Help center and self-service. Knowledge base builds, FAQ optimization, customer portal customization, and deflection rate improvement. A well-built help center is the cheapest ticket you've ever had to answer.
Team training and ongoing support. Agent onboarding, platform training, process documentation, and retainer-based optimization for teams that want a long-term partner instead of a one-time contractor.
Results clients see
- 30-50% reduction in ticket volume through automation and self-service
- Faster first response times from routing that actually routes correctly
- Higher CSAT from workflows that stop making customers repeat themselves
- Less agent burnout because the system handles what the system should handle
- Reporting visibility that finally tells leadership something useful
How I work
One-time projects like migrations, new platform setups, and optimization audits. Ongoing retainers. Emergency troubleshooting when something breaks, and you need it fixed today.
To get started
If your support platform feels like it is working against you instead of for you, send me a message with what you are dealing with. I will tell you honestly whether I can help and what it would take.
Atlassian Confluence
Zendesk
Administrative Support
Salesforce Service Cloud
Helpdesk
Intercom
Technical Support
Freshdesk
HubSpot
Customer Support
Business Services
Tech & IT
Customer Relationship Management
Automation
SaaS
Muhammad A.
Samundri, Pakistan
$40/hr
5.0
10 jobs
I help businesses securely connect offices, remote employees, and cloud infrastructure through enterprise VPN, firewall, and networking solutions. With 8+ years of experience and 500+ successful projects, I specialize in Cisco, Fortinet, WireGuard, OpenVPN, IPsec, and GL.iNet technologies that keep businesses secure and connected.
🏆 Trusted by Businesses Worldwide – 500+ VPN & Networking Projects Delivered
✅ 8+ Years of Enterprise Networking Experience
🔒 Secure, Reliable & Production-Ready Network Solutions
Are you looking for a network engineer who can quickly resolve VPN issues, securely connect multiple offices, deploy enterprise firewalls, migrate network infrastructure, or optimize cloud connectivity?
You're in the right place.
I'm a Cisco CCNP Enterprise Certified Network Engineer with over **8 years of hands-on experience** designing, deploying, securing, and troubleshooting enterprise networks for businesses worldwide. I specialize in delivering reliable networking solutions that improve security, performance, and business continuity.
Whether you need a one-time network deployment, emergency troubleshooting, or a long-term networking partner, I provide practical, business-focused solutions backed by clear communication and dependable support.
Core Services
✔ Remote Access VPN Deployment
✔ Site-to-Site VPN Configuration
✔ VPN Troubleshooting & Performance Optimization
✔ Firewall Configuration & Security Hardening
✔ Enterprise Network Design & Administration
✔ Cloud Networking (AWS & Azure)
✔ Network Troubleshooting & Performance Optimization
✔ Wireless Network Design & Optimization
✔ Network Migration & Infrastructure Upgrades
✔ Network Automation & Documentation
VPN & Remote Access Expertise
• WireGuard VPN
• OpenVPN
• IPsec / IKEv2 VPN
• Cisco AnyConnect
• L2TP VPN
• Tailscale
• ZeroTier
• Remote Access VPN
• Site-to-Site VPN
• Cloud VPN Connectivity
• Multi-Site VPN Deployments
• VPN Performance Optimization
• Secure Remote Workforce Solutions
Enterprise Networking
• Cisco Routing & Switching
• Cisco Meraki
• Fortinet Firewalls
• GL.iNet Routers
• OpenWrt
• VMware ESXi
• VLAN Design & Implementation
• STP
• EtherChannel
• HSRP
• VRRP
• OSPF
• EIGRP
• BGP
• MPLS
• NAT
• DNS
• DHCP
• Wireless Networking
• High Availability (HA)
• Network Monitoring
• Infrastructure Migration
Security, Cloud & Automation
• Firewall Hardening
• Security Policy Configuration
• AWS Networking
• Microsoft Azure Networking
• Hybrid Cloud Connectivity
• VPN Security Best Practices
• Port Forwarding & NAT
• Python Network Automation
• Infrastructure Documentation
• Network Diagrams
• Technical Consulting
Why Businesses Choose Me
✅ 500+ successful VPN & networking projects delivered
✅ Cisco CCNP Enterprise Certified
✅ 8+ years of enterprise networking experience
✅ Fast troubleshooting with minimal downtime
✅ Secure, scalable, and production-ready solutions
✅ Clear communication throughout every project
✅ Long-term technical support after project completion
✅ Experience supporting businesses across the USA, Canada, UK, Europe, and Australia
What You Can Expect
✔ Fast response times
✔ Reliable communication
✔ Professional documentation
✔ Clean and secure configurations
✔ Scalable network architecture
✔ Business-focused solutions
✔ Long-term support when you need it
My goal is simple: build secure, reliable, and high-performing network infrastructures that allow your business to operate without interruption.
Whether you need to deploy a VPN, configure a firewall, secure remote employees, connect multiple offices, optimize cloud networking, or troubleshoot complex network issues, I'm ready to help.
Let's discuss your project and build a secure, scalable, and reliable networking solution tailored to your business.
VPN
Network Equipment
Network Administration
Virtual LAN
Remote IT Management
Firewall
Network Engineering
Wireless LAN Controller
Cisco
Cisco Certified Network Associate
Ubiquiti
Cisco Meraki
Network Design
OpenWrt
Network Security
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