Staff React Native Engineer - Pro

Kraken; Poland; On-site; PLN 447,000 - 670,000; Full time

Job summary

Kraken is building the future of open finance. The Pro team seeks an experienced mobile engineer to own Kraken Pro’s mobile architecture and drive high-performance React Native apps.

You'll collaborate with Product, Design, and Backend teams to deliver user-focused features with reliability and scalability. With 8+ years in software engineering and deep React Native/TypeScript expertise, you will mentor others, optimize startup time and responsiveness, and steer engineering standards across

Qualifications

• 8+ years of software engineering with a strong focus on mobile.
• Deep expertise in React Native and TypeScript.
• Proven experience owning or leading large-scale, production mobile applications.
• Strong understanding of mobile performance optimization, architecture, and debugging.

Responsibilities

• Own and drive the technical vision and architecture of Kraken’s Pro mobile application.
• Build and maintain high-performance mobile applications using React Native and TypeScript.
• Lead initiatives to improve app performance, reliability, and scalability.
• Act as a technical leader across multiple teams, ensuring consistency and quality.
• Partner with Product, Design, and Backend teams to deliver user-facing features.
• Take the lead during production issues, diagnosing problems and driving solutions.
• Define and evolve engineering standards, best practices, and tooling for mobile development.
• Mentor engineers and elevate the team’s overall technical capability.

Skills

React Native

TypeScript

Mobile development

Performance optimization

Cross-team collaboration

Mentoring

Job description

Building the Future of Open Finance

Payward - the parent company behind Kraken, NinjaTrader, Breakout, xStocks, Payward Services and CF Benchmarks - has spent the last 15 years building one of the most modern and globally accessible financial infrastructure platforms in the industry, built to advance an open, global financial system.

The Team

Founded in 2011, Kraken is one of the world's longest-standing crypto platforms, trusted by over 10 million individuals and institutions across the globe. It offers spot trading, margin, futures, staking, and OTC services, with products built for both individual investors and institutional clients.

The Pro team is responsible for Kraken Pro’s web and mobile trading experiences across spot and futures markets. Distributed globally, the team builds and scales high-performance trading interfaces using Typescript and React, delivering fast, reliable, and intuitive experiences for advanced traders.

Opportunity

• Own and drive the technical vision and architecture of Kraken’s Pro mobile application
• Build and maintain high-performance mobile applications using React Native and TypeScript
• Lead initiatives to improve app performance, reliability, and scalability (e.g. startup time, responsiveness, resource efficiency)
• Act as a technical leader across multiple teams, ensuring consistency and quality across a shared codebase
• Partner with Product, Design, and Backend teams to deliver impactful, user-facing features
• Take the lead during critical production issues, diagnosing problems and driving solutions
• Define and evolve engineering standards, best practices, and tooling for mobile development
• Mentor engineers and elevate the overall technical capability of the team
• Stay close to the code while operating at a strategic, platform level

What You Bring

• 8+ years of experience in software engineering, with a strong focus on mobile development
• Deep expertise in React Native and TypeScript
• Proven experience owning or leading large-scale, production mobile applications
• Strong understanding of mobile performance optimisation, architecture, and debugging
• Experience delivering measurable improvements to app performance (e.g. load time, stability, efficiency)
• Solid knowledge of iOS and Android platforms
• Experience working across multiple teams or shared platforms
• Strong communication skills, with the ability to influence technical direction across teams
• A proactive, ownership-driven mindset with a bias for action

Nice to haves

• Significant experience of developing micro interactions and animations in React Native
• Experience building high-performance consumer or fintech applications
• Familiarity with native mobile development (Swift, Kotlin, etc.)
• Experience defining or scaling mobile platforms across multiple teams
• Background in fast-growing or highly technical product environments
• Contributions to open-source or the broader engineering community

OUR COMMITMENT

Payward is powered by people from around the world and we celebrate the diverse talents, backgrounds, contributions, and unique perspectives that everyone brings to the table. We hire based on merit, seeking out people with the right abilities, knowledge, and skills for the job. We encourage you to apply for roles where you don't fully meet the listed requirements, especially if you're passionate or knowledgeable about crypto.

We may ask candidates to complete job-related skills or work-style assessments as part of our hiring process. These assessments evaluate competencies relevant to the role and are applied consistently across candidates for similar positions. Results are considered alongside experience and interviews, and are not the sole basis for any employment decision.

As an equal opportunity employer, we don't tolerate discrimination or harassment of any kind, whether based on race, ethnicity, age, gender identity, citizenship, religion, sexual orientation, disability, pregnancy, veteran status, or any other protected characteristic as outlined by federal, state, or local laws.

Applications are accepted on a rolling basis unless a specific deadline is stated in the posting.

STAY CONNECTED

Twitter / X: https://twitter.com/krakenfx

LinkedIn: https://www.linkedin.com/company/kraken-exchange/

Kraken Blog: https://blog.kraken.com

Candidate Privacy Notice: https://www.kraken.com/legal/candidate-privacy-notice

Unless a specific application deadline is stated in the job posting, applications are accepted on an ongoing basis.

Please note, applicants are permitted to redact or remove information on their resume that identifies age, date of birth, or dates of attendance at or graduation from an educational institution.

We consider qualified applicants with criminal histories for employment on our team, assessing candidates in a manner consistent with the requirements of the San Francisco Fair Chance Ordinance.