Senior Staff Software Engineer

Responsibilities

• Architect and own foundational UI Platform services, including App Shell, performance frameworks, and configuration-driven systems such as SuperGrid and Flows.
• Define and enforce architectural boundaries and contracts that isolate critical paths from product code and reduce blast radius.
• Establish performance budgets, tooling, and automated enforcement to detect and prevent performance and reliability regressions before production.
• Drive the evolution of configuration-driven platforms that replace bespoke implementations with scalable, reusable foundations.
• Provide technical leadership and mentorship to engineers across UI Platform and influence the broader Platform organization.
• Act as the architectural authority for UI Platform initiatives by setting direction, reviewing designs, and making high-impact technical decisions.
• Partner with Product, Design, Infrastructure, and Backend teams to translate ambiguous requirements into durable platform abstractions.

Requirements

• 15+ years of experience building and operating large-scale backend, distributed, or platform systems.
• Deep programming experience in one or more backend languages such as Golang, Java, or Python.
• Strong backend architecture fundamentals, including API design, data modeling, service boundaries, dependency management, concurrency, performance, reliability, and failure isolation.
• Experience building internal platforms or foundational systems used by multiple engineering teams.
• Experience designing guardrails, validation systems, and automated enforcement mechanisms.
• Strong operational ownership, including observability, debugging, incident response, capacity planning, and production reliability.
• Experience leading complex architectural initiatives and large-scale migrations across multiple teams.
• Ability to influence engineering direction without direct reporting authority.
• Ability to balance hands-on coding and technical execution with architecture, mentorship, and organizational leadership.
• Strong written and verbal communication skills, particularly through design documents, RFCs, architecture reviews, and cross-team alignment.

Nice-to-haves

• Experience building configuration-driven platforms, workflow engines, orchestration systems, developer platforms, or low-code frameworks.
• Experience owning foundational platform systems adopted by hundreds of engineers or multiple product organizations.
• Experience safely migrating thousands of configurations, workflows, or application instances onto new platforms.
• Experience establishing performance budgets, reliability guardrails, platform governance, and automated architectural enforcement.
• Practical experience using AI-assisted developer tooling for migrations, automated refactoring, invariant validation, or large-scale code review.
• Familiarity with web or mobile application architecture and supporting backend infrastructure.