Monetization Frontend Engineer — Payments & IAP

character; Redwood City (CA); On-site; USD 140,000 - 210,000; Full time

Job summary

Character.AI is scaling personalized AI with monetization at its core, seeking a Product Engineer to shape how users pay for subscriptions, virtual currency, and premium features across web and mobile.

You’ll collaborate with design, product, data, and engineering to build delightful, performant purchase experiences, define success metrics, and drive revenue while protecting user trust and privacy.

Qualifications

• Experience in consumer products with monetization, IAP, or subscription flows.
• Proficient in Typescript, React, React Native, Tailwind, HTML.
• Comfortable contributing to backend services, ideally with Python or Golang, especially for payments or commerce systems.
• Demonstrated experience shipping user-facing features that drove monetization or engagement.
• Proven ability to thrive in a fast-paced environment, balancing iteration speed with quality and reliability.
• Excellent communication and collaboration skills across engineering, product, design, and data.

Responsibilities

• Build and optimize user-facing features across mobile and web that power payments, subscriptions, and in-app purchase flows.
• Design and experiment with monetization surfaces, from virtual currency systems to premium upsells to advertising.
• Partner closely with design and product to create delightful, performant, and trustworthy purchase experiences.
• Collaborate with data science to define monetization success metrics, run experiments, and analyze outcomes.
• Work with backends to design scalable, reliable systems for payments, entitlements, and transactions.
• Maintain a high bar for UI/UX polish, performance, and privacy in sensitive user flows.
• Help shape the company’s approach to monetization experimentation, including frameworks for A/B testing and iteration velocity.

Skills

Monetization experience

Typescript

React

React Native

Tailwind

HTML

Python

Golang

Frontend development

Cross-functional collaboration

Tools

Python

Golang

Job description

Character.AI is scaling personalized AI with monetization at its core, seeking a Product Engineer to shape how users pay for subscriptions, virtual currency, and premium features across web and mobile.

You’ll collaborate with design, product, data, and engineering to build delightful, performant purchase experiences, define success metrics, and drive revenue while protecting user trust and privacy.