Senior Software Engineer - React Native - Consumer

Poland, Remote. Posted a month ago

The role

You will build mobile experiences for the Kraken app using React Native. You will work with product and design teams to turn client problems into technical solutions and own features from implementation to iteration.

What you will do

Turn client problems into mobile experiences
Own features end-to-end from discovery to iteration
Build high-quality experiences in React Native
Partner with Product and Design to contribute engineering perspectives
Work with APIs and real-time data to create responsive experiences
Make decisions around state management, rendering, performance and architecture
Raise the product-engineering bar through technical discussions and code reviews

Required qualifications

Strong React Native experience
Built and shipped meaningful production applications using React Native
Product-building mindset with strong product judgment
Evidence of product impact using metrics, experimentation and client behaviour
End-to-end ownership of the feature lifecycle
Comfort with data-rich applications using APIs and real-time data
Close collaboration with Product and Design
Written and verbal English communication skills
Versatility and AI proficiency using tools like Cursor, Copilot, or Claude
Track record of turning loosely defined product problems into features with measurable impact

Nice to have

Experience building products in fintech, trading, crypto, payments or another financial technology environment
An understanding of how trading, investing or financial products work
Experience with real-time or streaming data
Experience working across both mobile and web
Experience in a startup or small-to-medium-sized technology company
Native mobile experience in Swift or Kotlin
Experience improving application performance, responsiveness and reliability

Before you apply

Explore the culture page to understand how the company works
Candidates may complete job-related skills or work-style assessments

About the company

Payward is the parent company behind Kraken, NinjaTrader, Breakout, xStocks, Payward Services and CF Benchmarks. It builds financial infrastructure platforms to advance an open, global financial system.