Senior Mobile Engineer (Android)

Job Title

Senior Mobile Engineer (Android)

Job Description

As a Senior Mobile Engineer, you'll be part of an engineering team building technology that powers our retail brokerage business. We prioritize the quality of our customer-facing applications. Our architecture is consistently evolving as our business grows and we face different technical challenges, but always with a focus on practicality and performance. Our team operates across multiple time zones, spanning the US and Europe, fostering a culture of asynchronous collaboration and inclusive communication.

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.

What you’ll do:

Engineering Environment

Our Android development combines established and modern approaches:

• New features are built using Kotlin and Jetpack Compose, embracing modern Android development practices

• Existing parts of the application use Java and Android Views, with opportunities for modernization

• The role involves working with our cross-platform architecture, where Java-based shared business logic enables feature delivery across web, desktop, Android and iOS platforms

• We emphasize quality through comprehensive testing (unit, component, and E2E)

• Our engineering culture embraces modern practices including:

• Continuous Delivery

• Pair programming

• Behavior-Driven Development (BDD)

Primary Responsibilities

• Lead Android development initiatives and guide technical decisions

• Coach and mentor team members in Android best practices

• Share Android expertise across the engineering organization through knowledge sharing sessions and documentation

• Improve code quality across a large codebase through refactoring and modernization

• Develop and maintain Android applications with focus on performance and user experience

• Contribute to our shared Java SDK that serves as the foundation for all platforms

• Participate in the full application lifecycle:
  - Concept development
  - Design
  - Build
  - Deploy
  - Test
  - App store release

• Solve complex engineering challenges in building interactive trading experiences

• Collaborate effectively with product, design and backend teams across time zones

What you’ll need for this role:

• Strong experience building complex Android applications using Kotlin, Jetpack Compose and Dagger2

• Deep understanding of reactive programming concepts (RxJava, Observable patterns, KVO)

• Track record of shipping production-ready Android applications

• Experience with large codebases

• Strong testing skills

• Proficiency with Gradle

• Experience with Java-based development

• Ability to work independently and collaboratively in fast-paced environments

• Commitment to delivering well-designed, reusable, high-quality code on schedule

• Experience working in distributed teams across different time zones

Preferred Qualifications

• Experience mentoring junior developers

• iOS development experience (Swift and Objective-C)

• Strong understanding of UI/UX design principles

• Experience with GitHub Actions and Fastlane

• Background in trading (equities, equity options, futures, or futures options)

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:

• Le