Senior Product Engineer, Scalability

Railway
San Francisco
Workplace: RemoteFull timeFunction: Laboratory & Clinical OperationsSkills: ["Communication","Problem-solving","Collaboration","Ownership","Detail-oriented"]

Backend-focused role to architect and scale high-throughput systems for billing, fraud prevention, and data pipelines. Own end-to-end components from ingestion to UI, with emphasis on PostgreSQL scalability, Node.js performance, Temporal workflows, and TypeScript + GraphQL APIs to ensure correctness, auditability, and reliability at scale.

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FursaFursa
Railway
Railway
3 months ago

Senior Product Engineer, Scalability

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Source: Company careers pageValidated by: Fursa AI
Last checked: 4 hours agoStatus: Live

Job Summary

Backend-focused role to architect and scale high-throughput systems for billing, fraud prevention, and data pipelines. Own end-to-end components from ingestion to UI, with emphasis on PostgreSQL scalability, Node.js performance, Temporal workflows, and TypeScript + GraphQL APIs to ensure correctness, auditability, and reliability at scale.
Location: San Francisco
Workplace: Remote
Employment Type: Full time
Job Function: Laboratory & Clinical Operations

Key Responsibilities

  • •Architect and scale the pipelines that turn raw usage into accurate, real-time billing—metering, aggregation, rating, and invoicing across millions of events.
  • •Build payment flows that are correct under concurrency and partial failure: idempotent charges, retries, reconciliation, and edge-case handling (Stripe and beyond).
  • •Develop fraud and abuse detection—signal collection, real-time scoring, automated mitigation—to protect margins without impacting legitimate users.
  • •Scale critical systems (Postgres under heavy writes, Node.js services, Temporal-based workflows) to meet demand and ensure durable, exactly-once semantics.
  • •Build TypeScript + GraphQL APIs where correctness and auditability are non-negotiable.

Pay and Benefits

Equity and Bonus:Equity
Perks:Health InsuranceEquityEquipment StipendRemote Work

Key Requirements

  • •Deep expertise in Postgres and relational data modeling, with a clear understanding of consistency guarantees and scale behavior.
  • •Strong working knowledge of Node.js internals—the event loop, memory behavior, and handling degradation under load.
  • •Experience managing complex asynchronous and long-running backend jobs, ideally with a workflow engine like Temporal.
  • •Proficiency in building TypeScript + GraphQL APIs with a focus on correctness and auditability.
  • •Familiarity with payments, idempotency, retries, reconciliation, and fraud-related failure modes; direct billing or fraud experience is a plus.
Experience:SaaSDeveloper Tools
Skills:CommunicationProblem-solvingCollaborationOwnershipDetail-oriented
Languages:English
Tech Stack:PostgreSQLPostgresNode.jsTemporalTypeScriptGraphQLClickHouseStripeRustAPI design

Company Brief

Railway
Provides a developer-focused, zero-ops cloud platform to deploy, run and manage applications and databases with minimal configuration; targets engineers and AI-native teams seeking faster, simpler infrastructure.
Industry: Cloud Computing
Company Size: Small (11 to 50 employees)
Growth: Growth Stage Startup
Funding: Series B
Headquarters: San Francisco, United States
Founded: 2020
WebsiteLinkedInGlassdoor