Frontend Developers

Frontend Developers

Mobile Application Engineer — React Native — Hybrid, Warsaw, Poland

Develop React Native gaming applications, improving mobile journeys and delivering product features across iOS and Android.

Vacancy details

This is a private vacancy. Company details stay confidential until InVault confirms a serious candidate fit.

Status
Active
Date posted
2026-10-13
Open until
2027-01-11
Employment type
Full-time
Source-listed languages
Not specified
Language requirement
No mandatory language inferred
Work arrangement
Hybrid
Physical workplaces
Warsaw, Poland
Applicant eligibility
Applicant geography not specified
Market focus
Netherlands

Overview

The mobile engineer works on applications serving the Netherlands market, contributing to complete features with product, design, backend, web and QA colleagues. The remit includes improvements to onboarding, bonus functionality and the broader mobile experience. React Native is central, supported by knowledge of the native platforms and the integrations required by production apps. The role calls for a product-minded approach: technical work should translate into smooth, understandable customer interactions. Cloud services, APIs and delivery pipelines form part of the environment, with performance and release-lifecycle experience useful additions.

Requirements

  • At least five years developing Android and iOS applications.
  • Strong React Native and TypeScript experience.
  • Good JavaScript fundamentals.
  • Experience with REST APIs, GraphQL and version control.
  • Cloud integration and CI/CD familiarity.
  • Unit testing, mobile optimisation and app-store release experience advantageous.

Responsibilities

  • Build and maintain React Native applications for iOS and Android.
  • Improve onboarding, bonus features and mobile usability.
  • Deliver changes with product, design and engineering partners.
  • Integrate apps with backend services and cloud capabilities.

Conditions

  • Full-time hybrid employment in Warsaw, Poland.

Tech stack

  • React Native
  • TypeScript
  • GraphQL
  • REST APIs