Fullstack Mobile Developer ( Kotlin, Java Backend)

ipracujzdalnie.pl; Łódź; A distancia; PLN 120.000 - 190.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Remote work

Competitive salary

Descripción de la vacante

Our client is seeking a skilled Fullstack Mobile Developer to build and enhance mobile applications and backend services. The role emphasizes Kotlin Multiplatform for shared logic, Kotlin/Java with Spring Boot for backend services, and collaboration across Product, Design, and Security teams.

We value curiosity, practical problem-solving, and rapid learning. The team embraces AI-assisted development, production-grade quality, and a flexible remote work setup to attract top talent across multiple

Formación

• Proven track record of mobile apps with focus on quality and performance.
• Strong knowledge of Kotlin and Android/iOS architectures.
• Backend experience with Java and Spring Boot.
• Experience with APIs, microservices and event-driven systems.
• Experience with CI/CD, automated tests and production environments.
• Ability to independently take features from design to production.
• Strong communication and cross-team collaboration.

Responsabilidades

• Create and develop features of mobile apps used by real users.
• Develop shared business logic for mobile platforms using Kotlin Multiplatform.
• Create backend services and APIs in Java/Kotlin and Spring Boot.
• Work with cloud services, CI/CD pipelines, monitoring, and production environments.
• Optimize performance, reliability, security, and user experience.
• Use AI tools to support development, testing, documentation, and problem analysis.
• Collaborate with Product, Design, Architecture, Security, and Platform teams.
• Co-creating engineering best practices and mentoring other developers.
• Deliver functionality from design through to production deployment.

Conocimientos

Mobile development

Kotlin

Java

Spring Boot

API design

CI/CD

Microservices

Cloud services

Kotlin Multiplatform

Team collaboration

Descripción del empleo

Our client, with 15 years of market presence, is a leader in providing innovative IT solutions focused on knowledge management and customer experience optimization. Its flagship product, the integrated Customer Experience tool - KMS Lighthouse, enables effective communication with customers and improves service quality while reducing operational costs. Specializing in data administration, the company offers solutions such as integration with social media, email, CRM, chatbots, product catalogs, surveys, and e-learning modules for agents. We are looking for individuals passionate about knowledge management, customer service, and IT specialists to join our client's team of experts, supporting the implementation of innovative solutions to significantly enhance customer experiences.

Fullstack Mobile Developer ( Kotlin, Java Backend)

location: Warszawa, Białystok, Wrocław, Łódź, Rzeszów, Poznań, Gdańsk, Katowice, Kraków, Lublin

Responsibilities

About the company / project

• You will join a team developing modern digital financial products used by a large number of customers.
• You will work on mobile applications, shared business logic, backend services, and production systems.
• The organization is moving toward smaller teams with greater product ownership, wider code sharing across platforms, and practical use of AI tools in the development process.
• We do not expect knowledge of all technologies from day one. Important are technological curiosity, a practical approach, and the ability to learn quickly.

Scope of responsibilities

• Creating and developing features of mobile applications used by real users.
• Developing shared business logic for mobile platforms, mainly using Kotlin Multiplatform (KMP).
• Creating backend services and APIs in Java/Kotlin and Spring Boot.
• Working with cloud services, CI/CD pipelines, monitoring, and production environments.
• Optimizing performance, reliability, security, and user experience.
• Using AI tools to support development, testing, documentation, and problem analysis.
• Close collaboration with Product, Design, Architecture, Security, and Platform teams.
• Co-creating engineering best practices and mentoring other developers.
• Responsibility for delivering functionality from design through to production deployment.

Requirements

• Very good experience in creating mobile applications.
• Good knowledge of iOS and Android application architecture and their key components.
• Very good knowledge of Kotlin and modern mobile architecture patterns.
• Experience in creating production applications with emphasis on quality, performance and maintainability.
• Backend experience with Java and Spring Boot.
• Knowledge of APIs, microservices and event-driven systems.
• Experience with CI/CD, automated tests and production environments.
• Ability to independently take features from design to production.
• Very good communication skills and experience collaborating with multiple teams.

Cross-platform experience

• The strategic direction of development is Kotlin Multiplatform, enabling sharing of business logic while maintaining native quality of mobile applications.
• Experience with Kotlin Multiplatform will be a strong asset.
• Candidates with strong experience in other cross-platform technologies are also welcome.

Good To Have Skills

• Very good communication and teamwork skills.
• Ability to work effectively in a dynamic environment.
• Proactive approach and problem-solving orientation.
• Ability for systems thinking and analysis of complex problems.

We Offer

• Atractive salary
• Remote work