1693 developer English-speaking jobs in Warsaw

We are looking for a Senior Frontend Developer with strong frontend craftsmanship, who can work independently

Develops and implements data quality rules for the JLL Data Quality Program across EMEA, AM, and APAC regions. Requires 4+ years of SQL and Databricks development experience, including complex queries and code reviews.

Develop and maintain Java applications using Java 11+, Spring Boot 3+, Spring Framework 5+, Kafka, and Kubernetes. Design solutions aligned with Twelve-Factor App principles and participate in architectural decisions. Collaborate with teams to design integrations and interfaces for high-performance, resilient applications. Minimum 4 years of experience as a Java Developer with strong knowledge of Java 11+, Spring Boot, Spring Framework, SQL, and JPA. Experience with Apache Kafka, Docker, Kubernetes, and Helm charts is preferred.

Design, develop, and maintain backend services, APIs, and system components. Collaborate with cross-functional teams in a Scrum environment. Monitor, troubleshoot, and resolve backend performance or stability issues.

Design, document, and implement cloud-based 3GPP compliant 5G SA home network functions. Collaborate with team members and provide progress updates.

Assist in creating and configuring basic integration flows using Oracle Integration Cloud (OIC). Set up connections to SaaS, FTP, REST/SOAP endpoints. Support creation of mapping logic using XSLT and OIC visual mappers. Conduct unit testing and assist in error analysis. Maintain interface lists, payload samples, and error logs.

OverviewThe Gen AI Developer is a senior-level position responsible for designing, developing, and deploying

Role Overview As a Junior Frontend Developer, you will support the design, development, and maintenance

Design, develop, and maintain robust server-side systems for financial technology products. Build scalable, secure, and high-performance backend services, handling data processing, API development, and system integrations. Collaborate with cross-functional teams to deliver reliable solutions.

Design and implement enterprise-level dynamic web applications, translating user stories into source code. Support the refinement of development methodology and work with the latest tools.

About the Role This role is for a hands‑on AI developer who enjoys experimenting, building quickly, and

Role Overview As a Senior Frontend Developer, you will lead the design, development, and optimization ... Lead design discussions and mentor other developer Required Skills Frontend Development: Mastery in

Develop, maintain, and optimize embedded real-time firmware using C/C++. Debug and validate software issues. Write automated unit and system-level tests. Collaborate with developers, Scrum Masters, and Product Owners to support system-level needs.

As a Power BI Developer, you will play a key role in designing its structure, improving data quality,

Senior Frontend Engineer to develop a centralized Retail Media platform automating campaign execution across marketplaces and social channels. Build and scale complex web applications within the React ecosystem, manage frontend architectures, and oversee the testing lifecycle.

Senior Python Developer to build LLM-powered applications on Google Cloud Platform. Requires 5+ years of Python development experience, Azure DevOps familiarity, and experience with distributed software design.

Senior Salesforce Developer - (100% remote within Poland) Full-time Welcome to the good side of tech ... Salesforce certifications (Platform Developer I/II, Integration Architect, Admin/App Builder).

Uploadcare is part of Tiugo Technologies, a suite of market-leading API-first developer platforms focused

Junior BI Developer will build Power BI dashboards and reports, write SQL queries, and create data models in Microsoft Fabric. Experience with Power BI, SQL, and data modeling is required.

Andersen is hiring a Backend Developer (.NET) in the EU to build and evolve cloud-based core banking