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This is a contractor engagement for a seasoned engineer who wants to work on impactful, hands-on engineering challenges. \nScope of Services \nBuild and scale the customer service platform that handles millions of passenger conversations across markets - from AI-powered chatbots and voice agents to help center and knowledge base tools. We run a polyglot stack (Python, TypeScript, Terraform) on AWS, integrating Twilio, Cognigy, Kafka and AWS Bedrock. We ship continuously and own our services end-to-end, from Terraform to production. \nAbout the Engagement\nDesign, build and maintain Python (FastAPI) backend services and TypeScript/React frontends across the CS platform \nTake greenfield products from concept to production - make architectural calls, prototype, validate, and iterate under uncertainty \nDevelop and extend Twilio Functions (JavaScript) for voice/IVR and webchat flows \nManage the infrastructure as code with Terraform (HCL) on AWS - you build it & deploy it \nIntegrate third-party and AI platforms: AWS Bedrock, Twilio, Cognigy, LiteLLM, Kafka \nApply AI to your engineering practice - use and help improve our internal AI tooling to ship faster and raise quality \nInstrument and monitor services (Datadog, event forwarding, alerting) and respond to production issues \nAbout You\n2-4 years building production software \nStrong in Python (FastAPI or similar) and comfortable in TypeScript/JavaScript (React a plus) \nHands-on with AWS and infrastructure-as-code (Terraform) \nSolid Git workflow, CI/CD, and containerized services (Docker) \nStrong ability to navigate vague or shifting requirements - 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