Senior React Native Engineer

Payward, the parent company behind Kraken, NinjaTrader, Breakout, xStocks, Payward Services, and CF Benchmarks, is seeking a Senior React Native Engineer to build the future of open finance. With 15 years of experience, Payward has created a globally accessible financial infrastructure platform to advance an open, global financial system.

The Team

The Consumer Mobile team develops the Kraken app, trusted by over 10 million users and institutions worldwide. The app offers spot trading, margin, futures, staking, and OTC services for both individual investors and institutional clients.

This is a product-minded engineering team. Engineers don’t just implement requirements—they collaborate with Product and Design to understand problems, challenge assumptions, shape solutions, and measure impact on client experiences.

The Opportunity

• We are looking for a Senior React Native Engineer who thinks like a product builder.
• You will work across engineering, product, and design to turn real client problems into thoughtful mobile experiences, comfortable starting with ambiguous problems rather than predefined specifications.
• You will own features end-to-end: problem understanding, solution shaping, implementation, launch, and iteration, using data and client feedback to drive improvements.
• You will build high-quality experiences in React Native for a financial product where responsiveness, reliability, and trust are critical, improving product discovery, trading experiences, or simplifying journeys.
• You will partner closely with Product and Design, contributing engineering perspectives early in the product-development process.
• You will work with APIs and real-time data to create responsive, data-rich mobile experiences, making thoughtful decisions around state management, rendering, performance, and architecture.
• You will operate with the ownership and versatility of a product engineer, comfortable wearing multiple hats and addressing both product and technical challenges.
• You will help raise the product-engineering bar across Consumer Mobile through technical discussions, code reviews, collaboration, and demonstrating strong product ownership.

What You Bring

• Strong React Native experience. You’ve built and shipped meaningful production applications using React Native and are comfortable making architectural and implementation decisions across a modern mobile codebase.
• A product-building mindset with strong product judgment. You start with the client problem, understand the actual goal, challenge requirements, simplify solutions, and collaborate with Product and Design to turn ambiguous requirements into strong engineering solutions.
• Evidence of product impact. You can explain not only what you’ve built but why and what happened afterward. You’re comfortable using metrics, experimentation, and client behavior to evaluate your work’s impact.
• End-to-end ownership. You’re comfortable working across the lifecycle of a feature: discovery, technical design, implementation, launch, measurement, and iteration.
• Comfort with data-rich applications. You’ve worked with APIs and dynamic or real-time data and understand the engineering considerations involved in turning that data into responsive client experiences.
• Close collaboration with Product and Design. You enjoy working directly with designers and product managers, see building great products as a shared responsibility, and communicate effectively in written and verbal English across a globally distributed team.
• Versatility and AI proficiency. You’re comfortable moving beyond a narrowly defined engineering remit, use AI tools thoughtfully to move faster while retaining ownership of engineering decisions and quality, and thrive in environments where you wear multiple hats.
• A track record of taking loosely defined product problems and turning them into features or products that delivered measurable client impact.

Nice to Have

• Experience building products in fintech, trading, crypto, payments, or financial technology.
• Understanding of trading, investing, or financial products and an interest in solving client problems.
• Experience with real-time or streaming data and building interfaces where information changes rapidly.
• Experience working across both mobile and web, bringing valuable perspective from broader frontend or product-engineering work.
• Experience in a startup or small-to-medium-sized technology company where engineers work closely with Product and Design.
• Native mobile experience in Swift or Kotlin and an understanding of when dropping below the React Native layer is the right engineering decision.
• Experience improving application performance, responsiveness, and reliability across a range of mobile devices.
• A background in taking loosely defined product problems and turning them into products or features with measurable client impact.