Senior Platform Engineer, Backend Applications

Dorsia•New York, NY

8h•$185,000 - $210,000•Onsite

About The Position

Dorsia is seeking a Senior Platform Engineer to own the backend application layer of a platform that handles some of the most demanding reservations, payments, and member experiences in the world. This is a senior- to staff-level role for an engineer who thinks deeply about how systems are built, not just whether they work. Qualified candidates are fluent in TypeScript and PHP, bringing genuine conviction about software architecture, API design, and what it takes to build for scale on a lean team. You ship, you own, and you raise the technical bar for everyone around.

Requirements

Bachelor of Science in Computer Science, Engineering, or related field.
6-8 years of backend engineering experience, with 1-2 years holding a senior or staff title.
Proven track record designing and scaling backend systems in production.
Experience launching and testing software products.
Deep fluency in TypeScript and PHP, database relational systems, containerized workflows, and cloud environments.
Ability to work in a fast-paced, complex environment involving cross-functional projects.
A genuine interest in the Dorsia product, the member experience, and what it means to build for hospitality at this level.

Nice To Haves

Prior experience with reservation system integrations (SevenRooms, Resy, OpenTable), dining payments infrastructure, or luxury/membership consumer apps.

Responsibilities

Design and evolve the architecture of Dorsia’s backend systems, including our proprietary software, and the APIs that power our member app and operator tools.
Lead architectural decisions around serverless, containerized, and event-driven approaches.
Own database architecture including schema design, query performance, indexing strategy, and data integrity at scale.
Define patterns for how services communicate, how data flows, and how the system degrades gracefully under load.
Drive API design across internal and external surfaces.
Write production-grade TypeScript and PHP across our application stack.
Proactively identify and resolve performance bottlenecks, scaling constraints, and architectural debt.
Champion observability across the application layer.
Collaborate closely with the Product Engineering team to scope new features, catching architectural problems before they’re written into the codebase.
Work with the Platform Engineering team to ensure application requirements are reflected in how the cloud environment is built and scaled.
Elevate the team through documentation, code reviews, and technical mentorship.