1065 backend developer English-speaking jobs in Warsaw

Python Developer for Data Platforms contributes to data and metadata access features. Requires 2+ years of Python and SQL experience, plus 3+ years of software engineering. Focus on building reliable applications and improving service operations.

Full Stack Developer for lottery technology. Responsibilities include leading software design, developing new technologies, and defining customer solutions. Requires 5+ years of experience and proficiency in J2EE, Javascript, and Web Services.

Design and develop responsive Angular applications and Spring Boot microservices using Java 17. Implement RESTful APIs, manage MongoDB and SQL databases, and containerize applications with Docker and Kubernetes.

Frontend Developer for iGaming builds and maintains interactive web-based casino games. Requires 3+ years in game development, strong TypeScript, OOP knowledge, and experience with PixiJS and SpineJS.

.NET Developer for financial software. Requires 4+ years in C# and .NET development. Focus on writing code for new features, participating in design, coding, and testing within a SCRUM environment.

Own and develop core components for the Prime Brokerage platform using Java/Kotlin. Provide technical leadership, mentor developers, and drive quality in SDLC and DevOps. Requires 6–10 years of relevant application development experience.

Develop and maintain frontend applications using Vue.js and React. Collaborate on the design system and ensure component and visual testing coverage. Improve CI/CD pipelines. Requires 5+ years of experience with Vue.js, React, or similar frameworks.

Senior BTP Consultant to align technology with business objectives. Design, configure, and administer the BTP platform. Collaborate with clients on SAP system implementations, including S/4HANA integration and cloud solutions. Lead technical design for integration and orchestration. Contribute to deployment of SAP Integration Suite and SAP Extension Suite.

learning, and making a real impact for some of the world’s biggest brands.About the RoleAs a Software Developer

Senior Java Developer with 5+ years of experience in Java development and Oracle DB. Experience with Agile Scrum methodology and Price & Distribution trading fx Options pricing platforms. Must have strong proficiency in core Java 8+, Maven, Jenkins/GIT, and clean code skills. Experience with Capital Markets and/or FX knowledge, JMS, Soap, REST, JuniT, Mockito, JSON/XML, Jira, and Confluence.

Senior Android Developer with 6+ years of experience building and enhancing Android architectures. Expertise in Kotlin, Coroutines, Kotlin Flow, Jetpack Compose, and UI/UX design for B2C apps. Strong understanding of software architecture patterns, Agile methodologies, and CI/CD. Excellent communication skills and fluency in English (B2+).

We are looking for a Full-stack Developer for a global IT services company with offices in Chicago, Warsaw

(good practices, appropriate frameworks, etc) While in the beginning you will be the only frontend developer

Senior Android Developer needed for a banking project in Warsaw, Poland. Responsibilities include implementing new Android functionalities using Kotlin, resolving issues, and ensuring high quality through unit testing. Requires minimum 4 years of experience developing Android apps, strong Kotlin skills, and knowledge of Android SDK, Jetpack Compose, and design patterns.

Frontend Developer with 2+ years experience needed. Strong HTML5, CSS3, SCSS, and JavaScript (ES5, ES6, ES7) skills required. Experience with React, Webpack, Babel, and Symfony 2/3 (TWIG) is a plus. Must have excellent design and UX sensibilities and be fluent in English.

commercial experience with Java - Experience in designing and developing scalable, high-performance backend

Lead the design, build, and maintenance of scalable microservices using Kotlin for a fintech expense management platform. Requires 5+ years of experience with server-side languages, distributed systems, AWS, and PostgreSQL.

Develop and maintain strategic IBM Mainframe applications using COBOL, JCL, CICS, z/OS, and DB2. Analyze requirements, design scalable solutions, and resolve production issues for critical banking processes.

Senior iOS Developer role focusing on implementing new features and UI improvements using Swift/SwiftUI and TCA. Responsibilities include bug fixing, code review, and CI/CD implementation.

manage deadlines in a dynamic environment About the team: Join our Fixed Income division as a Python Developer