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Senior Mobile Application Engineer
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Offer summary

(Summary generated by AI based on the full job description)

The project involves developing React Native mobile applications for iOS and Android for LeoVegas brands, including BetMGM and BetUK. Required skills include React Native, TypeScript, JavaScript, Rest API, GraphQL, Firebase and cloud integrations experience. Key responsibilities include developing and maintaining applications, ensuring intuitive UX, and supporting market expansion using AI tools.

you can start ASAP

Senior Mobile Application Engineer

Company: LeoVegas Group

from: 27 August 2026
to: 26 September 2026
29 000 - 32 000 złnet (+ VAT)/ mth.B2B contract (full-time)
24 000 - 26 500 złgross/ mth.contract of employment
Salary details
basic salary
Offer parameters
level:senior
working mode:hybrid
Warszawa, Śródmieście
Warszawa, ŚródmieścieKrólewska 16View on map

Requirements

Expected technologies

Android
iOS
React Native
TypeScript
JavaScript
Rest API
Datadog
GraphQL
Firebase

Operating system

macOS

Our requirements

  • At least 5 years of experience working as a mobile developer for Android and iOS
  • Strong experience with React Native
  • Proficiency in TypeScript
  • Good understanding of core JavaScript principles and concepts
  • Experience with cloud integrations
  • Experience with Rest API, Datadog, GraphQL, Firebase and version control

Optional

  • Experience writing Unit Tests
  • Hands-on experience optimizing mobile performance
  • Experience with CI/CD integrations
  • AI usability experience

Your responsibilities

  • Develop and maintain high-quality React native applications for both iOS and Android platforms
  • Ensure a smooth, engaging, and intuitive user experience
  • Work on apps for LeoVegas brands
  • Improve and enhance applications with a strong product focus
  • Contribute to launching new brands and expanding into new markets
  • Innovate with the usage of AI tools.

About the project

Join our team of skilled developers working on mobile applications for top LeoVegas brands like BetMGM, BetUK, and Expekt. With offices across Europe in Sweden, Poland, Spain, and the UK, we create high-performance and innovative solutions for both iOS and Android platforms.
We’re looking for a Mobile Application Engineer, specialised in React Native, and an understanding of native development to help drive our projects forward.
We are expanding our React Native team and are searching for talented engineers who are passionate about mobile development and eager to build innovative gaming experiences.

This is how we organize our work

This is how we work

in houseyou have influence on the choice of tools and technologiesyou have influence on the technological solutions appliedyou have influence on the productyou focus on product developmentagile

This is how we work on a project

  • Clean Code
  • code review
  • DDD
  • pair programming
  • architect / technical leader support
  • Continuous Deployment
  • Continuous Integration
  • team-level deployment
  • test automation

JOIN US!

In our pride, we empower our teammates to find their roar and run with their wildest ideas. We don’t wait for things to happen; we pounce and make it happen!
Would you be a good fit for the Leo Pride - give us a roar!
As our company working language is English, we’d like to see your CV in English, please
Company

What we offer

  • Hybrid work policy (🏢 Our office is located in the centre of Warsaw - on Królewska 16 👑)
  • 4 weeks of Workation (T&C apply)
  • Benefits package - 800 PLN net (B2B)/gross (UOP) monthly with access to the cafeteria platform (private medical care, insurances, sports card)
  • Training budget
  • ICAS assistance program that can provide help and guidance during challenging moments.
  • Our office provides complimentary snacks and drinks; on Mondays, we serve complimentary breakfast.
  • Team and office social events throughout the year
  • Free parking for bicycles and motorcycles
  • Free gym in the building
  • Equipment: MacBook Pro + smartphone (iPhone 16/17 or Samsung Galaxy S25)

Development opportunities we offer

  • conferences abroad
  • conferences in Poland
  • development budget
  • external training
  • space for experimenting
  • support of IT events
  • technical knowledge exchange within the company

Benefits

  • sharing the costs of sports activities
  • private medical care
  • sharing the costs of professional training & courses
  • life insurance
  • flexible working time
  • fruits
  • integration events
  • corporate gym
  • no dress code
  • coffee / tea
  • drinks
  • leisure zone
  • employee referral program
  • training budget
  • free of charge psychological, financial and legal support

LeoVegas Group

At the core of LeoVegas Group is Team Leo. Our culture is our foundation and is what enables us to innovate, build, and lead as we trailblaze our way through the igaming industry. We’re a team of almost 2000 innovators, initiators, and groundbreakers working in a fast-paced and agile environment across 19 offices worldwide.
More about us:
  • Careers site: www.leovegasgroup.com/careers
  • LinkedIn: https://www.linkedin.com/company/leovegasgroup
  • Instagram: www.instagram.com/lifeatleo/

    • This is how we work

    Senior Mobile Application Engineer
    24k–26.5k zł / mth. (CoE), 29k–32k zł / mth. (B2B)
    I apply to:
    LeoVegas Group
    Warszawa, Śródmieście
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