Senior Backend Engineer - Integrations Platform

<p><strong>Who we are&nbsp;</strong></p> <p>In the past, to be a successful restaurateur, you simply had to have a passion for food and a passion for people - but to succeed as a digital restaurateur you also need to have a passion for technology. We believe in the joy of serving others, and that's why we created Otter – to help restaurateurs succeed in online food delivery. Restaurants around the world, both large and small, including Chick-fil-A, Ben &amp; Jerry’s, KFC, and Eataly trust our software to power their delivery business. We increase sales, reduce order issues, and decrease delivery headaches.</p> <h3>&nbsp;</h3> <p><strong>What you’ll do</strong></p> <p>As a Senior Backend Engineer on Integrations, you will architect the systems that normalize the chaos of the external world. You will design heavy-lifting "middleware" that allows a menu update to propagate to 50+ external platforms instantly, or an order from an external source to inject into a system in milliseconds.</p> <ul> <li><strong>Architect Universal Abstractions:</strong> Design and implement unified data models (APIs) that abstract away the complexity of hundreds of disparate external systems (e.g., mapping complex, nested external data structures into a clean, flat internal schema).</li> <li><strong>Build Scheduling &amp; Initiative-Based Systems:</strong> Design sophisticated distributed schedulers and workflow engines that proactively drive data synchronization. You will move beyond simple reactive webhooks to build intelligent polling systems that optimize for data freshness while respecting strict external rate limits.</li> <li><strong>Master High-Concurrency Environments:</strong> Write high-performance code that safely manages shared resources under heavy load. You will solve complex race conditions and ensure thread safety when thousands of concurrent events attempt to update the same merchant entities simultaneously.</li> <li><strong>Scale the "Adapter" Ecosystem:</strong> Create developer frameworks and tooling that allow us to rapidly build and maintain integrations with new external partners with minimal friction.</li> <li><strong>Drive Technical Strategy:</strong> Lead technical decision-making on how we handle bi-directional data syncing ensuring data consistency across distributed systems.</li> </ul> <p><strong>The Technical Challenges You Will Solve</strong></p> <ul> <li><strong>The "N+1" Problem:</strong> How do we build a system that supports 100+ different integrations without maintaining 100+ separate codebases?</li> <li><strong>Real-time Consistency:</strong> How do we ensure a user never receives an order for an item th