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IG

Senior React Native Engineer

IG Group
Kraków, Polandfull_timeVerifiedPosted 3 Nov 2025

About the role

Job Title

Senior React Native Engineer

Job Description

So, who are we?

Hello, we're IG Group. We are a publicly-traded FTSE250 FinTech company who run mobile, web and desktop platforms that help our clients trade stocks & shares, leveraged products, Futures & Options and Crypto.

We are ambitious. Over 340,000 people already use our platforms. We're global with offices in 18 countries and products in 16 regions. We're hungry to move faster, ship better product for our customers and grow our user base. We believe in high autonomy, and we want people who are looking to do things differently in order to create better experiences for our customers.

We work in cross-functional teams and are laser focused on increasing the number of active clients we serve to drive sustainable growth.

Your team

This role is part of APAC and Middle East divisional tech function. You will be part of cross functional tech team who mission is to launch a new investment mobile app to APAC and Middle East countries. Initially we will launch a stocks and shares offering, however we have big plans to launch a crypto offering also. You will be joining a strategic part of the company and be actively contributing to a key revenue stream. 

Your role in the Team's Success

Your primary responsibility will be building the react native mobile app that will integrate with API’s hosted on AWS. You will be part of a team of 6 software engineers building features end to end and work with other teams in IG aswell as our third party integration provider. 

What you'll do

  • Design and develop high-quality, production-ready features for our React Native application 

  • Collaborate with product managers, designers, and backend engineers to deliver features with excellent UX  

  • Implement secure authentication flows and session management. 

  • Optimize application performance, focusing on responsiveness and efficiency  

  • Resolve complex technical issues and improve application architecture  

  • Participate in code reviews and mentor junior developers  

  • Develop and maintain automated tests to ensure reliability  

  • Work in an Agile environment, applying methodologies such as pair programming, test-driven development (TDD), and behaviour-driven development (BDD). 

What you'll need for this role

  • 5+ years of professional experience with React Native development  

  • Strong JavaScript/TypeScript proficiency  

  • Familiarity with charting libraries and real-time data visualization 

  • Understanding of RESTful APIs and secure data handling  

  • Knowledge of React Native performance optimization techniques  

  • Familiarity with native modules and third-party integrations  

  • Experience with automated testing frameworks for React Native 

  • Understanding of App Store and Google Play submission processes

How we work

We try to take a thoughtful approach to our ways of working as a company. We follow a hybrid working model with 3 days in the office -- which we think balances the need to collaborate effectively and connect with each other. When it comes to how we deliver, there are 5 things we want everyone to do to drive high performance, better learning and career satisfaction:

  • Lead and Inspire: Drives trust, alignment, and enthusiasm

  • Think Big: Focus on the problems that most impact commercial outcomes

  • Champion the client: Understand and prioritise client's needs

  • Deliver at pace: Push for fast, sustainable growth;

  • Raise the bar: Take ownership, be accountable and share feedback

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Company

IG Group

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