Hire the Best SMS Gateway Specialists

Hi, I’m Hitesh — a Full Stack Developer who helps businesses automate, communicate, and grow smarter. I specialize in building real-time communication tools, smart CRM integrations, and automation workflows using platforms like Twilio, RingCentral, Zapier, Make.com, and n8n. Over the years, I’ve worked with startups and scaling businesses to develop web-based calling systems, automate SMS/email flows, and tightly integrate AI into CRM pipelines using tools like OpenAI, Groq, and Gemini APIs. Whether you’re building a phone system, streamlining sales workflows, or want smarter lead management — I can help. 💡 What I Can Help You With: -Custom Web Phone Interfaces (Twilio / RingCentral) -Click-to-call, call routing, and SMS/voice automation -CRM Integration with call/SMS/email activity logging -AI Integrations (OpenAI, Groq, Gemini APIs) -Full-Stack Development (React, Node.js, PHP, Laravel) -Workflow Automation using Zapier, Make.com, n8n, Pabbly, Integrately -DevOps Support: CI/CD setup, server deployment, Docker, Nginx 🧠 CRMs I Work With: -Zoho, HubSpot, Salesforce, Odoo -Infusionsoft (Keap), Ontraport, ActiveCampaign -Bravo, Freshsales, Pipedrive, HighLevel, ClickFunnels, and more ⚙️ Tech Stack: -Frontend: React.js, HTML, JavaScript, Tailwind CSS -Backend: Node.js, PHP, Laravel, MySQL -APIs: Twilio, RingCentral, REST APIs, HubSpot, Zoho, OpenAI -Tools: WebRTC, Postman, Git, Docker, Firebase, Linux, Nginx -Automation: Zapier, Make.com, n8n, Pabbly, Integrately If you're ready to build a smarter workflow, better communication system, or seamless CRM integration — I’m here to help make it simple, secure, and scalable. Let’s collaborate and bring your vision to life. Feel free to invite me to your project!

🟩🟦 PERFORMANCE MARKETING | TRACKING | FUNNELS 🟦🟩 I help businesses acquire more customers by combining accurate tracking, high-converting funnels, and data-driven performance marketing into one scalable growth system. Turn Traffic into Profitable Customers. Scale with Data You Can Trust. Most businesses don't need more traffic. They need better tracking, stronger funnels, smarter optimization, and reliable data to make confident growth decisions. That's exactly what I help build. Whether you're an eCommerce brand, SaaS company, affiliate business, or iGaming operator, my focus is always the same: Build a customer acquisition system that consistently generates profitable growth. 🟩🟦 WHY CLIENTS HIRE ME 🟦🟩 Most freelancers manage ads. Most specialists manage tracking. Most CRO experts optimize landing pages. I connect all three. Instead of optimizing isolated parts of your marketing, I build an integrated acquisition system where campaigns, tracking, funnels, and conversion optimization work together. The result? ✔ More qualified customers ✔ Lower acquisition costs (CPA) ✔ Higher conversion rates ✔ Reliable attribution you can trust ✔ Better ROAS and marketing efficiency ✔ A scalable system built for long-term growth 🟩🟦 PERFORMANCE ARCHITECTURE & TRACKING 🟦🟩 Know exactly where every conversion comes from. Google Tag Manager (GTM) | Google Analytics 4 (GA4) | Meta Pixel | Conversion API (CAPI) | Server-to-Server (S2S) Postbacks | Voluum | Keitaro | Custom Events | CRM Attribution | Tracking Audits | Attribution | Analytics 🟩🟦 PERFORMANCE MARKETING & CAMPAIGN SCALE 🟦🟩 Acquire customers profitably while lowering acquisition costs. Meta Ads | Google Ads | Push Ads | SMS Marketing | Email Marketing | Audience Targeting | Campaign Optimization | Creative Testing | Creative Strategy | Traffic Optimization | Funnel Compliance 🟩🟦 FUNNELS & CONVERSION OPTIMIZATION 🟦🟩 Turn more visitors into qualified leads and paying customers. Lead Generation Funnels | Sales Funnels | Landing Page Optimization | Conversion Rate Optimization (CRO) | Funnel Optimization | Customer Journey Optimization | Offer Positioning | Landing Page Messaging 🟩🟦 INDUSTRIES I WORK WITH 🟦🟩 eCommerce Shopify SaaS Lead Generation Affiliate Marketing White-label Casino iGaming Sweepstakes Legal Services 🟩🟦 RESULTS MY CLIENTS AIM TO ACHIEVE 🟦🟩 📈 Reliable tracking and attribution 📈 Reduced data leakage 📈 Improved campaign efficiency 📈 Lower CPA 📈 Higher conversion rates 📈 Better visibility into what's driving revenue 📈 Scalable customer acquisition systems Recent project outcomes include: ✅ 2–5x ROAS ✅ Up to 30% improvement in CTR ✅ Up to 15% reduction in CPA ✅ Up to 20–35% improvement in conversion and FTD rates (where applicable) 🟩🟦 HOW I WORK 🟦🟩 Every business is different, but my approach follows the same framework. 1. Audit: Review your campaigns, funnels, tracking, creatives, and customer journey. 2. Diagnose: Identify exactly where performance is leaking—whether that's tracking, audience targeting, creatives, landing pages, or funnel bottlenecks. 3. Optimize: Implement improvements that increase conversion rates and marketing efficiency. 4. Scale: Use accurate data to confidently increase profitable customer acquisition. I don't optimize for clicks. I optimize for business growth. 🟩🟦 LET'S BUILD A SYSTEM THAT SCALES 🟦🟩 Whether you need to: • Scale Meta or Google Ads • Fix tracking and attribution • Improve ROAS and lower CPA • Optimize funnels and landing pages • Build a compliant customer acquisition system • Increase lead quality and customer lifetime value I'd be happy to discuss your goals and identify the biggest opportunities to improve your marketing performance. Let's build a growth system that delivers measurable business results—not just more traffic. Best wishes, Prabhaat S

I specialize in Twilio development, including Twilio Functions, Twilio Studio Flow, and TwiML. I have extensive experience building SMS, Voice, IVR systems, call automation, and API integrations using Twilio. With 8 years of experience in automation and API integrations, I develop custom solutions that help businesses automate communication and streamline their workflows using Twilio. Specializations: 💬 𝐓𝐰𝐢𝐥𝐢𝐨 𝐒𝐌𝐒 & 𝐌𝐌𝐒 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 Sending transactional and bulk SMS/MMS using Twilio APIs with delivery tracking and automation. 💬 𝐓𝐰𝐢𝐥𝐢𝐨 𝐖𝐡𝐚𝐭𝐬𝐀𝐩𝐩 𝐁𝐮𝐬𝐢𝐧𝐞𝐬𝐬 𝐀𝐏𝐈 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 WhatsApp messaging automation, template messaging, and CRM integrations using Twilio WhatsApp API. 📞 𝐓𝐰𝐢𝐥𝐢𝐨 𝐕𝐨𝐢𝐜𝐞 𝐀𝐏𝐈 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 Custom voice calling applications including inbound/outbound calls, call routing, and automation. 📲 𝐈𝐕𝐑 𝐂𝐚𝐥𝐥 𝐅𝐥𝐨𝐰 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 Advanced IVR systems with DTMF input, call routing, business hour logic, voicemail, and callback features. ☎️ 𝐓𝐰𝐢𝐥𝐢𝐨 𝐀𝐈 𝐀𝐠𝐞𝐧𝐭 & 𝐂𝐨𝐧𝐯𝐞𝐫𝐬𝐚𝐭𝐢𝐨𝐧𝐚𝐥 𝐀𝐈 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 Building AI-powered voice and messaging agents using Twilio integrated with AI models to automate customer conversations, lead qualification, smart responses, and support across voice, SMS, and WhatsApp channels. ⚙️ 𝐓𝐰𝐢𝐥𝐢𝐨 𝐒𝐭𝐮𝐝𝐢𝐨 𝐖𝐨𝐫𝐤𝐟𝐥𝐨𝐰 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 Designing and implementing automated communication workflows using Twilio Studio. ⚙️ 𝐓𝐰𝐢𝐥𝐢𝐨 𝐒𝐈𝐏 𝐓𝐫𝐮𝐧𝐤 𝐂𝐨𝐧𝐟𝐢𝐠𝐮𝐫𝐚𝐭𝐢𝐨𝐧 Setup and configuration of Twilio Elastic SIP Trunks for VoIP systems and PBX integrations. 𝐓𝐰𝐢𝐥𝐢𝐨 𝐒𝐈𝐏 𝐃𝐨𝐦𝐚𝐢𝐧 𝐒𝐞𝐭𝐮𝐩 Configuration of SIP domains for secure voice communication and softphone connectivity. 𝐓𝐰𝐢𝐥𝐢𝐨 𝐅𝐥𝐞𝐱 𝐂𝐨𝐧𝐭𝐚𝐜𝐭 𝐂𝐞𝐧𝐭𝐞𝐫 𝐈𝐦𝐩𝐥𝐞𝐦𝐞𝐧𝐭𝐚𝐭𝐢𝐨𝐧 Deployment and customization of Twilio Flex for cloud-based contact center solutions. 𝐂𝐨𝐧𝐟𝐞𝐫𝐞𝐧𝐜𝐞 𝐂𝐚𝐥𝐥𝐢𝐧𝐠 & 𝐂𝐚𝐥𝐥 𝐌𝐞𝐫𝐠𝐞 𝐒𝐲𝐬𝐭𝐞𝐦𝐬 Building conference call systems with participant management and call merge functionality. 🔔 𝐂𝐚𝐥𝐥 𝐑𝐞𝐜𝐨𝐫𝐝𝐢𝐧𝐠 & 𝐓𝐫𝐚𝐧𝐬𝐜𝐫𝐢𝐩𝐭𝐢𝐨𝐧 Call recording implementation with transcription and storage for compliance and analytics. 𝐓𝐰𝐢𝐥𝐢𝐨 𝐖𝐞𝐛𝐡𝐨𝐨𝐤𝐬 𝐮𝐬𝐢𝐧𝐠 𝐏𝐇𝐏 Developing webhook endpoints to handle Twilio events, calls, and messaging workflows. 𝐀𝟐𝐏 𝟏𝟎𝐃𝐋𝐂 𝐑𝐞𝐠𝐢𝐬𝐭𝐫𝐚𝐭𝐢𝐨𝐧 & 𝐂𝐚𝐦𝐩𝐚𝐢𝐠𝐧 𝐒𝐞𝐭𝐮𝐩 Complete setup of brand registration, campaign approval, and compliance for US messaging. 𝐂𝐑𝐌 & 𝐀𝐏𝐈 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬 Integration of Twilio with CRM platforms like HubSpot, Zoho, Pipedrive, and custom APIs. Why doing API integrations? By doing software integrations, you automate your business saving thousands of dollars on monthly expenses. My experience brings to your operation less total cost. Looking forward to connect. Thanks Anil

👋 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 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)

Your email list should be your highest-ROI channel, not an afterthought between ad campaigns. I'm a Klaviyo specialist for Shopify and eCommerce brands, and I build email marketing systems that turn browsers into repeat buyers, generating 30–50% of a store's revenue through email and SMS on autopilot. 2+ years deep in Klaviyo, not dabbling across ten platforms. That focus means faster diagnostics, cleaner flow logic, and a Klaviyo audit that actually finds where you're leaking revenue. I handle the full stack: strategy, segmentation, copywriting, design, and the technical setup (SPF/DKIM/DMARC, deliverability, integrations); most "email marketers" skip. What I built: → Klaviyo Account Setup, Audit & Optimization → Shopify & WooCommerce x Klaviyo Integration → Welcome Series, Abandoned Cart & Checkout Recovery → Browse Abandonment, Post-Purchase, Replenishment → Win-Back, VIP, Sunset, Cross-Sell & Upsell Flows → Review Request, Birthday & Anniversary Automation → Klaviyo Popup & Lead Capture Setup → Email Campaign Setup & Newsletter Management → SMS Automation (Klaviyo SMS, Postscript, Attentive) & Social Media Retargeting Support → Figma to Klaviyo Email Design & Template Development (Mobile-Responsive) → A/B Testing & Email Deliverability → Advanced Segmentation & Audience Targeting → Email Funnel Building & Revenue Attribution Tracking → ESP Migration (Mailchimp, Omnisend, ActiveCampaign & more) What does that get you: ✔ 30–50% of store revenue from email & SMS ✔ Higher open rates, CTR & deliverability, not just prettier emails ✔ Flows that run 24/7, whether you're working or not ✔ A lifecycle marketing system built to compound, not a one-off campaign Industries I know well: Fashion, Beauty & Skincare, Health & Wellness, Supplements, Jewelry, Home & Living, Pet Products, DTC Brands, SaaS & Subscriptions. Tools: Klaviyo, Shopify, WooCommerce, Mailchimp, Omnisend, ActiveCampaign, Postscript, Attentive, Figma, Canva, Google Analytics I'm not the freelancer who builds five flows and goes quiet. You get clear email communication throughout, an internet marketing eye on how email fits your broader ecommerce marketing and campaign management, and reporting tied to actual revenue, not vanity opens. If your list feels like an afterthought, let's fix that. Message me or hit **"Invite to Job"** and I'll tell you exactly where I'd start. Keywords: Klaviyo | Klaviyo Flows | Klaviyo Email Design | Klaviyo Audit | Email Marketing | Email Marketing Strategy | Email Automation | Email Campaign Setup | Email Deliverability | Email Design | Email Communication | Email Segmentation | Campaign Management | Ecommerce Marketing | Internet Marketing | Social Media Marketing | Graphic Design | Mailchimp | Shopify Integration | Abandoned Cart Recovery | Welcome Series | Lifecycle Marketing | A/B Testing | SMS Marketing | Audience Segmentation & Targeting