Senior SMS Infrastructure Engineer (GoHighLevel | Twilio | Telnyx | A2P | High-Volume Messaging)

# Senior SMS Infrastructure Engineer (GoHighLevel • Twilio • Telnyx • 1M+ SMS/Month) ## About Us Quantum AI Tech is a rapidly growing AI and performance marketing company operating multiple brands across lead generation, eCommerce, healthcare, and digital products. Our platform currently processes approximately **1,000,000 SMS messages per month**, and we're looking for an experienced engineer to help us build the next generation of our messaging infrastructure. This is **NOT** an SMS marketing position. We're looking for someone who understands telecommunications, carrier compliance, API architecture, message routing, deliverability, and high-volume messaging systems. --- ## What You'll Build You'll work directly with our executive team to architect and optimize an enterprise SMS platform that integrates with GoHighLevel while leveraging multiple SMS providers for redundancy, scalability, and cost optimization. Our goal is to create an infrastructure capable of delivering millions of compliant SMS messages with maximum deliverability and uptime. --- ## Responsibilities * Design and optimize high-volume SMS infrastructure * Build and maintain integrations with GoHighLevel via APIs and webhooks * Architect intelligent message routing across multiple providers * Optimize SMS deliverability and reduce carrier filtering * Manage A2P 10DLC registrations and compliance * Configure sender pools, queue management, and throughput optimization * Develop monitoring dashboards and alerting systems * Implement retry logic and automatic carrier failover * Build scalable webhook services * Create reporting and analytics dashboards * Optimize messaging costs across providers * Work closely with our automation and CRM teams --- ## Required Experience You should have strong experience with most of the following: * GoHighLevel API * Twilio * Telnyx * Bandwidth * Sinch * MessageBird * Infobip * A2P 10DLC * SMS Deliverability * Carrier Compliance * TCPA * REST APIs * Webhooks * Node.js or Python * Redis * Queue Management * AWS SQS, RabbitMQ, Kafka, or similar messaging systems * MySQL or PostgreSQL * Docker * Git * Cloud Infrastructure (AWS, GCP, or DigitalOcean) --- ## Bonus Skills * AI integrations * OpenAI API * LeadConnector * Zapier * Make.com * High-volume marketing systems * Affiliate marketing * CRM architecture * Performance marketing * Analytics platforms --- ## The Ideal Candidate You have built messaging systems that process hundreds of thousands or millions of SMS messages per month. You understand: * Carrier filtering * Sender reputation * Throughput limits * Rate limiting * Queue architecture * SMS cost optimization * Multi-provider failover * Compliance * Deliverability engineering You enjoy solving complex infrastructure problems and building systems that scale. --- ## Screening Questions Please answer every question. 1. How many SMS messages has the largest platform you've managed processed each month? 2. Which SMS providers have you worked with? 3. Have you built multi-provider routing? If so, explain your architecture. 4. Have you integrated GoHighLevel via API or webhooks? 5. Describe a deliverability issue you diagnosed and how you solved it. 6. What technologies do you typically use for queue management? 7. Have you worked with Redis, RabbitMQ, Kafka, or AWS SQS? 8. What programming languages are you strongest in? 9. Have you built systems with automatic failover between SMS providers? 10. Share links to any relevant projects, GitHub repositories, or architecture diagrams (if available). --- ## Engagement This begins as a contract position with the potential to become a long-term technical leadership role. We're looking for someone who can help build a best-in-class messaging platform—not just execute tasks. To confirm you've read the entire job posting, begin your proposal with the phrase: **"1M READY"** Applications that do not include this phrase will not be considered.