903 frontend developer English-speaking jobs in Warsaw

Intermediate Java Developer with Kotlin to build and deliver components for the Core Prime Brokerage platform. Responsibilities include agile development, CI/CD improvement, and collaborating with stakeholders.

.NET (Web) Developer needed to maintain, support, and enhance existing applications. Requires advanced SQL expertise, experience with .NET/ASP.NET Web API, and familiarity with Kafka, Docker, AWS, and Terraform. Strong English skills are essential.

Java Developer for a leading financial institution building an enterprise intermediary platform. Focus on backend services, messaging architecture, and system integration for FX, Options, Commodities, and Interest Rates. Requires core Java, Kafka/Solace, microservices, and reactive programming experience.

C# Developer for Data Management. Design and implement business logic for core product lines. Requires 5+ years of experience in C# and .NET, understanding of data structures, and software architecture.

Full Stack Developer in Treasury Transformation needed. Requires 7+ years of experience with Python, JavaScript, and SQL. Design, build, and maintain end-to-end applications and automation solutions.

In shortIf you're a Senior Android Developer who knows BLE inside out and isn't afraid of code that talks

Intermediate Java Developer with Kotlin to build and deliver components for the Core Prime Brokerage platform. Responsibilities include agile development, CI/CD improvement, and collaborating with stakeholders. Java and Test-Driven Development are essential.

C# Developer for information systems. Design, develop, and maintain systems using Microsoft and Oracle technologies. Requires 3+ years in C#, .NET Framework, WCF, MVC.NET, SQL, and SSIS.

recruitment projects we undertake for our partners, we are currently looking for: Senior Fullstack Developer

PLSQL, Confluence, Jira, Maven, Docker, DDD, OOP, SOLID, TDD, willingness to develop toward a fullstack developer

Experienced Power Platform Developer needed to support development and maintenance of business-critical applications. Focus includes Power Automate, Power Apps, SharePoint Online, and Power BI reporting.

Senior Java Developer to design, develop, and maintain Java applications supporting taxation, account management, and investment processing. Experience with Java and Spring Boot upgrades, relational databases, and messaging technologies required.

Senior Backend Developer to develop and maintain Enterprise Services using Java Spring Boot, PostgreSQL, Kafka, and microservices. Requires 4-6+ years of experience and strong English skills.

Full Stack Developer in Fintech at J.P. Morgan. Build and maintain end-to-end applications using Python, JavaScript, and SQL. Design front-end experiences and engineer back-end services and data pipelines. Requires 3+ years of experience.

Fullstack Developer for banking applications. Develop, design, code, and test systems using Java Spring and Angular. Requires experience with Kubernetes and strong English skills.

Full Stack Developer for AI-powered web applications. Supervise AI code generation, conduct advanced reviews for security and performance, and integrate new web layers with legacy logic using .NET 8, C#, Angular 21, and TypeScript.

Senior .NET Developer to design and maintain backend applications, microservices, and distributed systems. Requires 4+ years of .NET/C# experience, API design skills, and Azure knowledge.

Machine Learning Developer Location: Hybrydowo, Warszawa - hybrid office, minimum 1 day per month in

Agile software delivery process (Scrum/Kanban) Nice to have: Salesforce certificates: Industries CPQ developer

Xiliun Biogas is currently looking for a Project Developer to strengthen our Polish team based in Warsaw