ABOUT SINCH
Sinch is pioneering the way the world communicates. More than 150,000 businesses — including Google, Uber, Paypal, Visa, Tinder, and many others — rely on Sinch's Customer Communications Cloud to power engaging customer experiences through mobile messaging, voice, and email. Whether you need to verify users or craft omnichannel campaigns, Sinch makes it easy. Our AI-infused Super Network, APIs, and applications ensure you can connect with your customers reliably and securely, at every step of their journey. At Sinch we "Dream Big", "Win Together", "Keep it simple", and "Make it Happen". These values are our foundation
DESCRIPTION
We are building the next generation of conversational AI infrastructure. As a Senior Software Engineer on the Context Storage team, you will design, build, and own the core data platform that captures, persists, and serves conversational context to AI agents operating across SMS, WhatsApp, and voice at scale.
This is a zero to one opportunity to build a new platform from the ground up,
working closely with all the teams belonging to the AI Agents domain. You will work on complex problems with high autonomy as part of a small senior team with significant impact. You will collaborate with Engineering Managers, Tech Leads, Product Managers, Domain Architects and cross-functional teams.
Tech stack: Go, Kafka, DynamoDB, AWS, Kubernetes
Responsibilities
Design and build the event-driven pipelines that capture conversational and interaction events across channels and persist them into durable, queryable stores.
Own the data model and storage architecture that represents conversational context in DynamoDB, designed for fast, consistent, and cost-efficient access by AI agents.
Design system architecture and create technical proposals covering event ingestion, schema/table design, single-table vs. multi-table strategies, and read/write access patterns on DynamoDB.
Build event sourcing / CQRS-style systems that reconcile high-throu
📌 Sr Software Engineer (Madrid)
🏢 Sinch
📍 Madrid