Senior Software Engineer

Kraken Digital Asset Exchange; Brasil; Remote; BRL 180,000 - 320,000; Full time

Job summary

Kraken Digital Asset Exchange seeks a Senior React Native Engineer who thinks like a product builder. You will collaborate across engineering, product and design to turn client problems into thoughtful mobile experiences, owning features end-to-end from discovery to iteration.

Expect to work with APIs and real-time data to deliver responsive, data-rich mobile experiences. You’ll partner with Product and Design early in development, influence architecture and performance decisions, and contribute

Qualifications

• Strong React Native experience with production apps.
• Product-building mindset and ability to challenge requirements when needed.
• Ability to explain what was built, why, and the impact using metrics.
• End-to-end ownership from discovery to iteration.
• Experience with data-rich, real-time APIs and rendering responsive UI.
• Excellent collaboration with Product and Design; clear written and spoken English.
• Comfort with AI tools to accelerate delivery while keeping engineering ownership.
• Track record of turning loosely defined problems into tangible features or products with measurable impact.

Responsibilities

• Own features end-to-end from discovery to launch and iteration.
• Work with APIs and real-time data to build responsive mobile experiences.
• Collaborate with Product and Design to translate problems into engineering solutions.
• Contribute to architecture, state management, rendering performance and quality.

Skills

React Native

Product mindset

Impact metrics

End-to-end ownership

Real-time data

Cross-functional

AI proficiency

Product problems to features

Job description

The opportunity

We're looking for a Senior React Native Engineer who thinks like a product builder. You'll work across engineering, product and design to turn real client problems into thoughtful mobile experiences, comfortable starting with an ambiguous problem rather than a perfectly defined specification. You'll own features end-to-end, from understanding the problem and shaping the solution through implementation, launch and iteration, using data and client feedback to drive improvements. You'll build high-quality experiences in React Native across a financial product where responsiveness, reliability and trust matter, whether improving product discovery, creating trading experiences, or simplifying journeys. You'll partner closely with Product and Design, contributing engineering perspectives early in the product-development process rather than waiting for finished requirements. You'll 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'll operate with the ownership and versatility of a product engineer, comfortable wearing multiple hats and moving between product problems and technical challenges. You'll help raise the product-engineering bar across Consumer Mobile through technical discussions, code reviews, collaboration and by 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 rather than the ticket, understand what we're actually trying to solve, know when to challenge requirements or simplify solutions, and work 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 you built it and what happened afterwards. You're comfortable using metrics, experimentation and client behaviour to evaluate the impact of your work.
• 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 (Cursor, Copilot, Claude, etc.) 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.