Mobile Engineer

Madiff; United States; A distancia; USD 110.000 - 160.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Solid salary

Fully remote

Healthcare

International projects

Long-term B2B contract

Descripción de la vacante

Madiff is recruiting remote Mobile Engineers (Android or iOS) to enhance a large-scale retail app used across international markets. You will build features, improve UX, and drive performance while integrating with SAP S/4HANA, Azure Data Lake, and modern payment solutions.

Ideal candidates bring production-grade Android or iOS experience, strong REST/API knowledge, and collaborative skills in a fast-paced, multinational environment. English and Polish proficiency is required.

Formación

• Commercial mobile development experience on Android or iOS.
• Production-grade mobile components in fast-paced teams.
• REST API integration and backend alignment.
• Knowledge of mobile performance, state management and architecture.
• Git and Agile delivery experience.
• Proficient communication in Polish and English.

Responsabilidades

• Build and deliver mobile features for Android (Kotlin/Java) or iOS (Swift).
• Transform UX prototypes into production-ready components.
• Implement API integrations and align with backend systems.
• Ensure performance, stability and secure mobile flows.
• Collaborate with backend, design and analytics teams on end-to-end features.
• Support modernization of modules and engineering best practices.

Conocimientos

Android Kotlin/Java

iOS Swift

REST APIs

Mobile architecture

Git

Agile delivery

Polish language

English language

Descripción del empleo

This is a remote position. We are looking for Mobile Engineers (Android or iOS) to join a large-scale retail application programme. The role involves new feature development, UX improvements, performance optimisation, and integration with enterprise systems such as SAP S/4HANA, Azure Data Lake, and modern payment solutions. This is an opportunity to work on high-visibility mobile features used across international markets.

Responsibilities

• Build and deliver mobile features for Android (Kotlin/Java) or iOS (Swift)
• Transform UX prototypes and functional requirements into production-ready components
• Implement API integrations and ensure alignment with enterprise backends
• Ensure performance, stability, and secure mobile flows
• Collaborate with backend, design, and analytics teams on end-to-end features
• Support modernisation of modules and ensure engineering best practices
• Contribute to continuous improvement and delivery standards

Requirements

• Solid commercial experience in Android (Kotlin/Java) or iOS (Swift)
• Ability to deliver production-grade mobile components in a fast-paced environment
• Strong understanding of REST APIs and mobile integration patterns
• Good knowledge of mobile architecture, state management, and performance concepts
• Experience with Git and Agile delivery teams
• Strong communication skills in Polish and English

Nice to have

• Experience using AI coding tools (Copilot, Cursor, etc.) privately or commercially
• Experience with Flutter or React Native
• Experience integrating payments (Apple Pay, Google Pay, PayPal, Klarna)
• Background in retail or enterprise mobile systems

Benefits

• Solid, competitive salary
• Work in multinational environment on international projects
• Comprehensive healthcare
• Long-term B2B contract with stable project pipeline
• Fully remote model