728 backend developer English-speaking jobs in Kraków

We are seeking a skilled and passionate ServiceNow HRSD Developer to join our dynamic team.

Full Stack Developer role requiring expertise in Angular, Node.js, JavaScript, TypeScript, HTML, and GraphQL. Experience with REST APIs is necessary. This is a contract of employment position.

Due to rapid growth, the GlobalLogic Automotive department is looking for a System Test Engineer / Developer

Develop and maintain enterprise applications using Java. Responsibilities include building streaming apps with Apache Flink, writing tests, and collaborating in a Scrum team. Requires 2+ years of Java experience and knowledge of the Spring stack.

We are looking for a Senior Android Developer with strong expertise in native Android SDK development

on embedded platforms, integrating closely with hardware and network systems; Architect and document backend

Senior Java Developer to design, develop, and test components of the Transfer Agency Investor Onboarding system. Requires strong Java skills, experience with Spring MVC/SpringBoot, JMS, JPA, JAX-*, WebServices (SOAP, REST), and relational databases. Must have a BSc or MSc in Computer Science and fluency in English.

Senior Java Developer to design, develop, and test components of the Transfer Agency Investor Onboarding system. Requires strong Java, Spring, and WebServices experience, along with a Bachelor's or Master's degree in Computer Science. Must possess excellent communication and problem-solving skills.

Currently, we are looking for a Business Intelligence Developer (SQL, PowerBI) to take a key role in

Senior Java Developer to build new features and product development for a SaaS sourcing platform. Requires strong Java, Spring Boot, and REST API experience.

provider of iLottery solutions and services to state-regulated lotteries, is seeking a dedicated Games Developer

Consolidated revenues as of 12 months ending March 2026 totaled $14.7BOverview of the Role:As a Medior Pega Developer

Software Developer 1 joins the Controls and Automation Subsea SW Product Development team. Responsibilities include low-level board support or application level work using Python and C++. Requires a relevant degree and strong communication skills.

Develop server-side Java applications for FX trading systems. Design and build robust, scalable distributed systems. Requires 5+ years in Java development, proficiency in multi-threaded programming, and knowledge of Kafka, Spring, and Spring Boot.

Experienced Xamarin Native Developer sought to contribute to mobile applications for sports performance analysis. Must have strong C# skills and experience designing and executing mobile app projects. Experience with OOD, Agile Development, Scrum, Unit Testing, Design Patterns, and Continuous Integration is beneficial.

OverviewIn Mosaico (https://mosaico.ai) we are looking to extend our development team with a Full-stack developer

NET Fullstack Developer in the newly established Polish IT department.

teamOur Requirements:2+ years of development experience with RPA – BlueprismBluePrism Professional Developer

Senior Java Developer to build a mission-critical aviation platform. Requires 4+ years experience with Java/J2EE, JMS, Spring, Hibernate, and Oracle/SQL. Must design, develop, and test complex software in an Agile environment.

JavaScript Developer will build reusable code and libraries for mobile applications. Experience with React Native is required. The role involves enhancing applications for speed and scalability and ensuring user input validation.