Principal Platform Software Engineer
About The Position
As a full stack individual contributor, this role owns the translation of business and product needs into precise specifications that guide AI-assisted software development. The primary responsibility is backend platform engineering, complemented by the ability to deliver frontend experiences and AI-powered interactions. The engineer will define system behavior, interfaces, constraints, acceptance criteria, and validation strategies before implementation. They will use AI development tools to generate, refine, and test solutions, applying engineering judgment to assess correctness, security, maintainability, performance, and architectural fit. This role leads technical initiatives across teams, resolves ambiguity, and manages dependencies and integration contracts. The engineer will deliver reliable platform services and interactive experiences using React, Node.js, MCP App Extensions, and dynamic AI canvases, owning outcomes from specification through production validation and ongoing improvement.
Requirements
- Strong backend engineering experience with distributed systems, cloud services, APIs, and production operations.
- Demonstrated ability to translate ambiguous product goals into precise, testable specifications covering system behavior, interface contracts, constraints, edge cases, and acceptance criteria.
- Experience using specifications to guide AI-assisted development, critically reviewing generated implementations and tests, and validating correctness, security, maintainability, and architectural fit.
- Ability to contribute across the full stack, including React, JavaScript/TypeScript, and Node.js, connecting interactive frontend experiences with backend services.
- Experience designing secure service integrations with identity, authorization, auditability, and policy enforcement.
- Strong engineering judgment and ownership from specification through production validation, with the ability to work across teams and shape reusable platform capabilities.
Nice To Haves
- Experience or familiarity with MCP App Extensions and dynamic AI canvases, including tool-connected interfaces, streaming updates, and interactive AI-generated content.
- Familiarity with LLMs, AI agents, RAG, tool calling, MCP, hosted tools, vector stores, or agent orchestration patterns.
- Experience with OCI, Kubernetes/containers, Java/Python/TypeScript, service telemetry, and operational excellence.
Responsibilities
- Lead cross-team evolution of backend services, middleware patterns, and runtimes to standardize interoperability at scale.
- Design and develop scalable APIs and services that support multi-tenant workloads, frontend applications, and AI-powered experiences.
- Define and implement versioning, deprecation, compatibility, and rollout strategies that minimize downstream disruption.
- Drive shared observability baselines, including service-level objectives, error budgets, and resilience patterns across services.
- Own backend performance, capacity planning, reliability, and production troubleshooting.
- Deliver features end to end, connecting backend services and APIs with responsive, interactive frontend experiences.
- Develop and maintain React applications and reusable components using JavaScript or TypeScript, contributing to Node.js services and integration layers as needed.
- Build MCP App Extensions and integrate their user interfaces with tools, platform services, and AI workflows.
- Develop dynamic AI canvases that support interactive content, visualizations, and user actions informed by AI outputs.
- Implement frontend state management, asynchronous data flows, streaming updates, and clear loading, error, and recovery states.
- Collaborate with product and design partners to translate requirements into intuitive, accessible experiences.
- Apply appropriate validation, authorization, and error handling across frontend and backend boundaries.
Benefits
- Medical, dental, and vision insurance, including expert medical opinion
- Short term disability and long term disability
- Life insurance and AD&D
- Supplemental life insurance (Employee/Spouse/Child)
- Health care and dependent care Flexible Spending Accounts
- Pre-tax commuter and parking benefits
- 401(k) Savings and Investment Plan with company match
- Paid time off: Flexible Vacation is provided to all eligible employees assigned to a salaried (non-overtime eligible) position. Accrued Vacation is provided to all other employees eligible for vacation benefits. For employees working at least 35 hours per week, the vacation accrual rate is 13 days annually for the first three years of employment and 18 days annually for subsequent years of employment. Vacation accrual is prorated for employees working between 20 and 34 hours per week. Employees working fewer than 20 hours per week are not eligible for vacation.
- 11 paid holidays
- Paid sick leave: 72 hours of paid sick leave upon date of hire. Refreshes each calendar year. Unused balance will carry over each year up to a maximum cap of 112 hours.
- Paid parental leave
- Adoption assistance
- Employee Stock Purchase Plan
- Financial planning and group legal
- Voluntary benefits including auto, homeowner and pet insurance
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What This Job Offers
Job Type
Full-time
Career Level
Principal
Education Level
No Education Listed
