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👋 Hi, I’m Oleksii - a Twilio expert with over 7 years of hands-on experience building scalable, real-time communication systems using the full Twilio stack: 📞 Programmable Voice / SMS, 🧠 TaskRouter & Flex, 🎛️ Studio, Functions, Conversations, Sync, Webhooks and more. I’ve successfully completed 120+ Twilio projects on Upwork, including: • Eliminating latency issues in phone calls 🔧 • Creating SMS marketing automation pipelines 📲 • Developing full-scale Flex dashboards with custom workflows 🧩 Clients describe me as: “Very skilled, excellent communicator, smart guy and a pleasure to deal with.” “Oleksii was very helpful and available :) We no longer have problems with latency during our phone calls.” 🛠 Whether you need help with: • Twilio Studio call flows • Complex webhook-based automation • TwiML, IVR, call forwarding setups • Integrating Twilio with CRMs or internal systems • Building voice/SMS logic in Node.js, Laravel, or Firebase environments …I’ve got you covered. Let’s bring your Twilio-powered solution to life 🚀 Feel free to invite me to your job or message me with questions.

I am a specialized Twilio and SMS compliance expert helping businesses, marketing agencies, SaaS companies, fintech startups, and e-commerce brands successfully set up, scale, and maintain high-volume, fully compliant Twilio SMS campaigns. With over 4 years of hands-on experience in the Twilio ecosystem, I focus on solving one of the biggest challenges businesses face today: getting SMS messages delivered reliably without carrier blocks, regulatory violations, or sudden shutdowns. Whether you’re struggling with A2P 10DLC registration, low delivery rates, complex automation needs, or integrating Twilio into your existing systems, I deliver clean, scalable, and compliant solutions that just work. My Core Expertise • A2P 10DLC Registration & Compliance I handle the complete end-to-end process—from Brand Registration, Campaign Registration (Standard, Low-Volume, and Sole Proprietor), to Trust Score optimization. I have successfully registered dozens of brands and campaigns with fast approval times, helping clients avoid the common 30-60 day delays many face. • Twilio API Integration & Development Expert-level integration of Twilio’s Messaging API, Voice, Verify (2FA), and Conversations. I connect Twilio seamlessly with CRMs (HubSpot, Salesforce, Zoho), websites (WordPress, Shopify, custom), and internal tools. • n8n Automation Specialist I build powerful, cost-effective automation workflows using n8n (self-hosted or cloud). From simple notification systems to complex multi-channel sequences (SMS + Email + WhatsApp), I create maintainable workflows that save clients hundreds of hours and reduce operational costs. • SMS Compliance & Carrier Best Practices Deep understanding of US carrier requirements (AT&T, T-Mobile, Verizon), TCPA, and international regulations. I perform compliance audits and implement fixes to recover blocked numbers and improve deliverability rates to 98%+. • High-Volume SMS Architecture Designing scalable systems capable of sending 50,000+ messages per day while maintaining compliance and high engagement rates. Services I Offer A2P 10DLC Full Registration Package Brand + Campaign registration Trust score improvement strategies Fast-track approval support Ongoing compliance monitoring Twilio SMS Automation with n8n Lead nurturing sequences Abandoned cart recovery Appointment reminders & confirmations Customer support automation Marketing drip campaigns Twilio API Development & Integration Custom dashboards Real-time messaging systems Two-factor authentication (2FA/OTP) Webhook setup and error handling SMS Deliverability Optimization Carrier lookup & number validation Blocked number recovery Message content optimization for better routing Analytics setup and performance tracking Consulting & Audits Full SMS infrastructure review Compliance gap analysis Cost optimization recommendations Why Clients Trust Me 100% Job Success Score on Upwork (Top Rated) Consistent on-time delivery with clear communication Clean, well-documented code and workflows Strong focus on long-term relationships rather than one-off projects Ability to explain complex technical concepts in simple business language Selected Client Results Helped a fintech startup complete A2P 10DLC registration in under 14 days and scale SMS volume 8x while maintaining 98.7% delivery rate. Built a complete n8n + Twilio automation system for a digital marketing agency that increased client engagement by 47% and reduced manual work by 30 hours per week. Recovered multiple blocked phone numbers for an e-commerce brand and improved overall SMS deliverability from 62% to 97% within 3 weeks. My Working Process Discovery Call – Understand your current setup, goals, and pain points Technical Audit – Review existing Twilio account, compliance status, and workflows Custom Proposal – Clear scope, timeline, and expected outcomes Implementation – Build, test, and document everything Training & Handover – Full knowledge transfer so you’re not dependent long-term Ongoing Support – Available for maintenance and optimization I work primarily with clients in the United States, Canada, UK, and Europe, but I’m flexible with time zones and always available for urgent requirements. Let’s Work Together If you're Tired of SMS messages getting blocked or filtered Spending too much time on manual processes Facing compliance headaches with A2P 10DLC Looking to automate customer communication at scale …then I’m the right expert for you. Send me a message with details about your current Twilio setup or specific challenge. I usually respond within a few hours and can provide an initial assessment at no cost. Let’s build a compliant, high-performing SMS system that drives real results for your business. Looking forward to partnering with you.

I am a VoIP and Telephony Engineer with extensive experience in 3CX, VICIdial, Asterisk, FreeSWITCH, Twilio, SIP Trunking, and DID number provisioning. I help businesses build, optimize, and maintain reliable communication systems for call centers, telemarketing operations, and enterprise telephony environments. My expertise includes PBX installation and configuration, SIP trunk integration, number porting, IVR design, call routing, predictive dialer setup, inbound and outbound call center solutions, and VoIP troubleshooting. I am also experienced with Linux server administration, cloud deployments, and API integrations for voice and SMS applications. Whether you need a complete call center deployment, 3CX configuration, VICIdial optimization, Twilio integration, SIP troubleshooting, or ongoing telephony support, I can deliver scalable and dependable solutions tailored to your business needs. Core Skills: • 3CX PBX Administration • VICIdial Installation & Management • Asterisk & FreeSWITCH Development • Twilio Voice & SMS Solutions • SIP Trunk Configuration • DID Number Provisioning & Porting • Predictive & Power Dialers • IVR & Call Flow Design • Linux Server Administration • VoIP Troubleshooting & Optimization • CRM & API Integrations • Call Center Infrastructure Setup I focus on delivering reliable communication systems that improve efficiency, call quality, and business performance. 3CX, VICIdial, Asterisk, FreeSWITCH, Twilio, VoIP, SIP, SIP Trunk, DID Numbers, PBX, IP PBX, Hosted PBX, Cloud PBX, Telephony, Telecom, Telecommunications, Call Center, Contact Center, Predictive Dialer, Power Dialer, Auto Dialer, Progressive Dialer, Call Routing, IVR, Interactive Voice Response, Call Queue, Ring Groups, Voicemail, Call Recording, Number Porting, SIP Carrier, Voice Gateway, Session Border Controller, SBC, WebRTC, SMS Gateway, Twilio Voice, Twilio SMS, Twilio API, Linux Administration, CentOS, Ubuntu, Debian, Rocky Linux, AlmaLinux, MySQL, MariaDB, PostgreSQL, Apache, Nginx, SSH, VPN, Firewall, Networking, TCP/IP, UDP, RTP, QoS, NAT Configuration, VoIP Troubleshooting, SIP Debugging, SIP Trace, Wireshark, CRM Integration, Salesforce Integration, HubSpot Integration, Zoho CRM, Pipedrive, API Integration, REST API, PHP, Python, Bash Scripting, AGI Scripts, Call Flow Design, Inbound Calling, Outbound Calling, Lead Management, Telemarketing, Cold Calling Systems, Voice Broadcasting, Bulk SMS, DID Provisioning, SIP Registration, Carrier Integration, Call Monitoring, Queue Management, Agent Management, Multi Tenant PBX, Failover Configuration, High Availability, Cloud Deployment, AWS, DigitalOcean, Vultr, Linode, Dedicated Servers, VPS Setup, Server Migration, System Optimization, VoIP Security, Fraud Prevention, FreePBX, Issabel PBX, FusionPBX, Elastix, Yeastar, Grandstream, Fanvil, Yealink, Polycom, Cisco VoIP, Sangoma, OpenSIPS, Kamailio, Voice API, Telecom Consulting, Call Center Setup, VoIP Engineer, Telephony Engineer, SIP Expert, 3CX Expert, VICIdial Expert, Twilio Expert, Asterisk Expert, FreeSWITCH Expert, Linux Server Administrator, Network Engineer, Technical Support, System Administration, Remote Support, Cloud Communications, Unified Communications, UCaaS, Business Phone System, Enterprise Telephony, Call Center Optimization, Dialer Configuration, Lead Campaign Management, Real Time Reporting, Call Analytics, Voice Solutions, Telecom Infrastructure, Contact Center Solutions, VoIP Deployment, PBX Installation, SIP Configuration, DID Management, Call Center Technology, Telecom Solutions

𝗜 𝗵𝗲𝗹𝗽 𝗯𝘂𝘀𝗶𝗻𝗲𝘀𝘀𝗲𝘀 𝗴𝗲𝘁 𝘁𝗵𝗲𝗶𝗿 𝗧𝘄𝗶𝗹𝗶𝗼 𝗦𝗠𝗦, 𝗩𝗼𝗶𝗰𝗲, 𝗮𝗻𝗱 𝗪𝗵𝗮𝘁𝘀𝗔𝗽𝗽 𝘀𝘆𝘀𝘁𝗲𝗺𝘀 𝗮𝗽𝗽𝗿𝗼𝘃𝗲𝗱, 𝗰𝗼𝗺𝗽𝗹𝗶𝗮𝗻𝘁, 𝗮𝗻𝗱 𝗱𝗲𝗹𝗶𝘃𝗲𝗿𝗶𝗻𝗴 𝗿𝗲𝗹𝗶𝗮𝗯𝗹𝘆. Whether you're struggling with A2P 10DLC registration, campaign rejections, SMS filtering, Trust Hub verification, or GoHighLevel phone registration, I help identify the root cause, resolve compliance issues, and get your messaging infrastructure operating correctly. Many businesses come to me when they face: ✔ A2P 10DLC registration rejections ✔ Campaign approval delays ✔ Twilio Trust Hub verification issues ✔ SMS deliverability problems (Error 30007) ✔ Carrier filtering and blocked messages ✔ GoHighLevel LC Phone registration issues ✔ Business verification challenges ✔ WhatsApp Business onboarding issues ✔ Messaging compliance concerns My goal is simple: help you get approved faster, improve message delivery, reduce compliance risks, and build a reliable messaging system that supports your business growth. Services: • Twilio A2P 10DLC Brand & Campaign Registration • Campaign Rejection Remediation • SMS Compliance Audits • Twilio Trust Hub Setup • GoHighLevel LC Phone Registration • SMS Deliverability Optimization • Twilio Messaging Services Configuration • WhatsApp Business API Setup • Twilio Voice Configuration • SHAKEN/STIR & CNAM Registration • API & CRM Integrations • Webhook Configuration • Messaging Infrastructure Consulting Platforms & Technologies: Twilio GoHighLevel WhatsApp Business API Twilio Voice Twilio Messaging Services Twilio API Twilio Verify A2P 10DLC Trust Hub Webhooks CRM Integrations SMS Compliance Voice Compliance SHAKEN/STIR CNAM Messaging Infrastructure. If you're facing a Twilio registration issue, campaign rejection, deliverability problem, or compliance challenge, send me the details and I'll review the situation, identify the likely cause, and recommend the best path forward. Twilio, GoHighLevel, HighLevel, Twilio API, API Integration, SMS, SMS Marketing, SMS Compliance, SMS Deliverability, SMS Approval, Business Messaging, Messaging Infrastructure, CRM Automation, CRM Integration, Telemarketing, Communications, VoIP, Telephony, Phone System Setup, LC Phone, Twilio Trust Center, A2P 10DLC, A2P Registration, Brand Registration, Campaign Registration, Carrier Compliance, Messaging Compliance, Trust Center Setup, SHAKEN STIR, CNAM, Voice Compliance, Call Tracking, Call Center Software, Automation, Workflow Automation, Marketing Automation, Customer Engagement, Lead Nurturing, Appointment Reminders, Two-Way Messaging, Text Messaging, Business SMS, SMS Automation, Twilio Messaging, Twilio Voice, Twilio Flex, Twilio Studio, Twilio Functions, Twilio Conversations, Twilio Verify, Twilio Programmable SMS, Twilio Programmable Voice, Twilio Integration, Twilio Setup, GoHighLevel Setup, GoHighLevel Automation, GoHighLevel CRM, GoHighLevel Phone System, GoHighLevel Workflows, GoHighLevel SMS Setup, GoHighLevel Integration, SaaS Integration, Webhook Integration, Communication Systems, Cloud Communications, Telecommunications, Telecom Compliance, Voice Authentication, Caller ID Authentication, Business Verification, Regulatory Compliance, Carrier Registration, SMS Campaign Setup, SMS Infrastructure, Messaging Systems, Customer Communication, Contact Center Solutions, Sales Automation, Lead Generation Automation, Pipeline Automation, CRM Consulting, Business Process Automation, API Development, API Configuration, Technical Consulting, Cloud Telephony, Virtual Phone Systems, Mobile Messaging, SMS Strategy, SMS Consulting, Messaging Solutions, Enterprise Messaging, Digital Communications, Customer Support System

I build, scale and rescue production VoIP and Voice AI platforms. For over 15 years, I've been designing SIP, WebRTC and real-time communication systems built on FreeSWITCH, OpenSIPS, Asterisk and related technologies. My experience ranges from troubleshooting complex SIP and media issues to designing multi-tenant communication platforms, AI-powered voice systems and carrier-grade telephony infrastructure. I can help with: • AI Voice Agents and Voice AI Platforms • OpenAI Realtime, Gemini Live, Deepgram, ElevenLabs, RetellAI • FreeSWITCH and Asterisk development • OpenSIPS and Kamailio SIP routing • SIP trunking and carrier integrations • WebRTC platforms and browser telephony • RTP, NAT traversal and media troubleshooting • SBC design and deployment • Contact center and call center solutions • Twilio, Telnyx and CPaaS integrations • Production incident investigation and VoIP troubleshooting • Telephony migrations and system modernization My technical background includes: • VoIP: SIP, RTP, WebRTC, FreeSWITCH, OpenSIPS, Kamailio, Asterisk, Jambonz, Drachtio, Twilio, Telnyx • Backend Development: Node.js, TypeScript, Python, Go, C • Databases: PostgreSQL, MySQL, MongoDB, Redis • Messaging: RabbitMQ, AWS SQS • Cloud & Infrastructure: AWS, GCP, Docker, Kubernetes, Linux, CI/CD • Monitoring: Prometheus, Grafana, ELK Stack Recent projects include: • AI-powered voice agents integrated with telephony platforms • SIP and WebRTC infrastructures handling production traffic • Multi-tenant communication platforms for SaaS products • Carrier integrations and custom call routing solutions • Real-time communication systems built on FreeSWITCH, OpenSIPS and cloud-native infrastructure Whether you need to build a new platform, migrate an existing system, integrate Voice AI capabilities or resolve complex SIP/WebRTC issues, I can help deliver a reliable production-ready solution.

If your SMS campaigns are getting rejected, blocked, or not delivering properly, your setup likely has A2P 10DLC compliance issues or broken messaging logic. That’s where I come in. I help businesses fix SMS campaign rejections, improve deliverability, and build compliant messaging systems using Twilio and automation tools like n8n. Many clients reach out after: • A2P 10DLC campaign rejection • Messages not being delivered or heavily filtered • Twilio compliance errors or warnings • Automation workflows that don’t work reliably I identify the root cause and implement a clean, compliant system that works in real production environments. WHAT I HELP WITH • Twilio A2P 10DLC registration • SMS compliance setup • Fixing SMS deliverability and filtering issues • Twilio API integration • n8n workflow automation for messaging systems • AI-powered SMS systems • GoHighLevel (GHL) SMS setup and automation HOW I WORK I take a compliance-first, system-level approach. This means I don’t just “set things up” I build messaging systems that are stable, approved, and scalable without risking carrier blocks or shutdowns. WHO I WORK WITH • SaaS founders • Agencies • Coaches and consultants • Startups building SMS-based products If you need help fixing a rejected campaign, improving SMS delivery, or building a reliable messaging system, feel free to reach out. I can review your setup and recommend the best approach. Send me a message, I respond quickly. Comfort Aminu