Principal Software Engineer, Money Infrastructure

About This RoleAI processing…

Key Responsibilities

• 1
  Lead the design, architecture, and implementation of Replit’s core money infrastructure, spanning pricing, billing, payments, and monetization.
• 2
  Own and scale the global order-to-cash foundation supporting credit-based subscriptions, usage-based billing, marketplaces, in-app payments, and commerce for Agents.
• 3
  Enable rapid pricing and packaging experimentation across the company by building flexible abstractions and APIs for new SKUs, plans, and monetization models.
• 4
  Build high-converting, localized payment experiences across geographies — thinking globally while enabling users to pay locally.
• 5
  Power builder monetization by creating payment rails for apps, Agents, subscriptions, and new monetization primitives.
• 6
  Partner closely on data specifications with finance, accounting, and data teams to produce accurate, auditable, and reliable financial data.
• 7
  Collaborate with external monetization and payments partners (e.g. billing platforms, payment processors) to accelerate execution.
• 8
  Create monitoring, observability, and feedback systems to proactively detect issues, resolve failures, and optimize performance across financial flows.

Requirements

• 8+ years of professional software engineering experience, with strong backend expertise.
• Hands-on experience building or operating at least one of the following: Subscription or recurring billing platforms
• Usage-based or metered billing systems
• Payment processing platforms
• SaaS taxation or compliance systems
• Tokenization or credits-based systems

Perks & Benefits