We are looking to hire a SMS Messaging Workflow Engineer (Telnyx / KYC Compliance) to build a compliant automated text messaging system.The system will send an initial consent request text message, wait for the recipient’s reply (YES / NO / STOP), and then automatically send a follow-up message only if consent is granted. All inbound and outbound messages must be logged in a database for audit and compliance purposes. If a recipient replies STOP, the system must permanently block future contact to that phone number.The workflow must be built using Telnyx messaging APIs, secured webhooks, and a PostgreSQL database. The developer will be responsible for creating the message state logic, webhook endpoint, database schema, opt-out handling, and delivery logging required to meet TCPA and consent record-keeping requirements. Code should be clean, well-structured, and documented for internal technical handoff.ResponsibilitiesDevelop consent and follow-up SMS workflow using Telnyx Messaging APIsImplement webhook logic to process inbound replies (YES / NO / STOP)Create and deploy a PostgreSQL audit logging system (5+ year retention)Implement permanent opt-out suppression logicSecure all endpoints (HTTPS + Telnyx signature verification)Provide documentation and a simple admin reference for internal staffRequired SkillsTelnyx SMS / Messaging Profile configuration & webhook handlingBackend development in Node.js or PythonPostgreSQL schema design, indexing, and encryption practicesAPI security and signature validationUnderstanding of TCPA consent requirementsPreferred Skills (Not Required)Experience with SMS deliverability optimization / A2P 10DLCDocker / DevOps for clean deploymentRedis for message state caching (optional)DeliverablesWorking SMS consent + reminder system deployed to our environmentPostgreSQL database with full audit loggingWebhook endpoints with opt-out enforcementClear documentation for internal operation & compliance review