Senior Engineer - Mobile

Mobile

-, Poland (Remote)+4 Locations

Hard Rock Digital

28 000 - 33 000PLN

Net per month - B2B

Full-time

B2B

Senior

Remote

Tech stack

React Native

advanced

Android

advanced

TypeScript

advanced

Java

advanced

Job description

Overview

Hard Rock Digital is a team focused on becoming the best online sportsbook, casino, and social casino company in the world. We care about each customer's interaction, experience, behavior, and insight and strive to ensure we’re always acting authentically.

Rooted in the kindred spirits of the Seminole Tribe of Florida, the new Hard Rock Digital taps a brand known all over the world as the leader in gaming, entertainment, and hospitality. We’re taking that foundation of success and bringing it to the digital space.

What’s the position?

This is an exciting opportunity to join our rapidly growing technology team, responsible for continuous growth and support of an unrivalled betting experience for millions of sports fans everywhere. We’re looking for a Senior Mobile Engineer who will bring their creativity and experience to Hard Rock Sportsbook to help us build software with a spark of magic. This is a role that works closely with Product Management, Design, QA, and Backend Engineering to deliver a full-featured mobile app. The candidate should have a strong track record developing React Native apps, as well as experience with iOS and/or Android apps, preferably with a background in sportsbook, gaming, or a related industry.

Your responsibilities will include:

• Working in an agile, cross functional, team working to deliver the best possible platform experience on multiple platform

• Develop a high-performance mobile application used daily by tens of thousands of players in React Native for iOS and Android platforms

• Skilled in breaking down features into requirements, giving time estimates, and writing test procedures

• Working in a highly regulated industry

• Work with business partners to continually develop, evolve and improve the mobile application

• Collaborate with the team to develop backend api’s that support both iOS and Android mobile platforms

• Participate in testing, code reviews, and continuous integration, ensuring the delivery of high-quality code and stable applications

• Be focused on the end user’s experience and iteratively improve performance

• Implement analytics in all aspects of the application and analyze results

Requirements

What are we looking for?

We are looking for an engineer who is willing to tackle problems with innovative ideas and quality technical implementations. We believe the perfect candidate isn’t interested in just what we’re building right now, but wants to understand where we’re going and how it impacts the customer to ensure everything we create moves us closer to our goal: delivering the best customer experience.

The ideal candidate will have:

• Min 5+ years of experience in developing mobile applications (native or hybrid)

• Min 3+ years’ experience developing in react native

• Extensive experience with state management, specifically mobx

• Extensive experience with rest, websockets and graphql

• Extensive experience developing in react-native using TypeScript

• Prior experience developing on native android an iOS using Java, Objective-C, and/or Swift

• Strong communication skills (both written and verbal)

• Bachelor’s degree in computer science or related field

• Knowledgeable in aspects of the mobile development lifecycle, including application development, application structure, device and operation system APIs, debugging, performance, security, and deployment

• Knowledge and understanding of client-server development in mobile environment, and proven architect skills

• Experience with continuous integration and delivery with Apple and Google App Stores

• Utilization and integration of mobile features like Push Notifications, Background Loading, Offline Content Storage, etc.

Published: 14.08.2025

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