Senior Engineer, Messaging Platform

As a Senior Backend Engineer on the Messaging team, you'll help design and build the next generation of Postman's Notifications Platform. You will work on reimagining the platform to support agentic, event-driven notification workflows, designing backend systems that enable contextual notifications triggered by agents, workflows, and product events, building reliable platform primitives for triggering, routing, delivery, retries, deduplication, rate limiting, user preferences, and notification lifecycle management, partnering closely with teams building Agents and AI-powered experiences to understand their needs and translate them into scalable platform capabilities, improving the developer experience through well-designed APIs, self-serve tooling, documentation, and integration workflows, expanding observability across the entire notification lifecycle—understanding what triggered a notification, why it was sent, how it was delivered, and whether it succeeded, ensuring the platform is designed with reliability and user trust at its core, minimising issues such as duplicate sends, stale notifications, noisy experiences, and incorrect targeting, collaborating across infrastructure, product, design, support, and platform teams to deliver a seamless notification experience for both users and internal developers, contributing to technical strategy, architecture reviews, engineering standards, and design discussions within the Messaging team, mentoring engineers and helping raise the technical bar across the organisation.

Candidates will join an innovative team pushing engineering boundaries. Depending on the domains associated with this job, you will be expected to design clean APIs, write automated test cases, and participate in peer code reviews. We value developers who focus on performance optimization, fast load times, and simple, maintainable architectures.