Software Engineer, Payments Infrastructure

📋 Description

• Build real-time card capture for voice: intercept keypad and spoken digits in a live audio stream
• Build and extend the tokenization platform: agents receive and send short-lived tokens, and the
• Own the payments egress control plane: every destination for card data is approved, versioned with
• Make payment actions correct: an at-most-once action primitive in the Agent SDK, validated amounts
• Keep card data out of places it should not be: deterministic detection in the agent's hot path that
• Make payments self-serve: one payments API across Agent Studio, the Agent SDK, and Ghostwriter

🎯 Requirements

• 5+ years building backend, platform, or infrastructure systems, with a track record of shipping and
• A deep security instinct. You design as though every component will eventually be compromised, and
• Rigor about correctness under failure: retries, idempotency, at-most-once behavior, and clear
• Fluency in a systems language (we use Go) and comfort owning critical systems end to end, from
• Range and ownership. You like a small team with broad scope, you build clean abstractions over
• Clear communication. You can explain a design or a risk to other engineering teams and to

🎁 Benefits

• Flexible (unlimited) paid time off
• Medical, dental, and vision benefits for you and your family
• Life insurance and disability benefits
• Retirement plan dependent on country of employment
• Parental leave
• Fertility and family building benefits through Carrot