729 backend developer English-speaking jobs in Poland

around scalability, reliability, and low-latency processing. ,[Develop and optimize high-performance backend

Proven experience in similar software developer roles programming in C, C++. ... Ability to work independently and as part of a team We are looking for a R&D Senior Software Developer

Fullstack Engineer develops and optimizes cutting-edge solutions. Requires proficiency in JavaScript frameworks (React, Angular, Vue) and server-side languages like Java, Node.js, Python, or Ruby, plus database knowledge.

Join our Client's Team as a Qlik Developer! ... We are looking for an experienced Data & Visualisation Specialist (Qlik Developer) to join a dynamic

Qlik Developer role requiring 3 years of experience in data analysis and Qlik proficiency. Responsibilities include developing dashboards in QlikSense, managing data sources, and ensuring Qlik deployment best practices. Requires strong analytical skills and collaboration.

driving both growth and smarter marketing through the best application of technology. ,[As a Synerise Developer

BI Developer experienced in building and maintaining BI dashboards using Tableau. Requires knowledge of business logic, calculated fields, custom SQL, and data modeling. Collaborates with stakeholders in Agile teams.

We're hiring an experienced Calypso developer to build and extend the vendor platform powering fixed

Develop COM/SOM flows and support E2E order flow automation using Oracle OSM in a telecom environment. Requires experience with RODOD, fulfillment processes, and ITSM knowledge.

Develop and implement Oracle UIM solutions, including designing inventory models, creating cartridges, and supporting data migrations. Requires minimum 5 years of Oracle UIM experience and telecom inventory domain knowledge.

Develop and maintain Android applications using Kotlin, Jetpack Compose, and architectural patterns like MVP, MVVM, and Clean Architecture. Integrate with network services, manage databases, and implement secure practices.

Develop and build secure application services and APIs using Python, Django, and FastAPI. Drive technical design, troubleshoot production issues, and improve service reliability. Requires strong OOP skills and excellent English communication.

Python Developer needed with strong Unix/Linux and Python/Bash experience. Must be willing to take on Scrum Master duties. Requires analytical skills, teamwork, and English proficiency for international teams.

B2B Contract Fullstack Developer Miejsce pracy: Kraków Technologies we use Expected Claude OpenAI Codex

Develop and optimize a production React TypeScript chat application. Implement real-time streaming UIs and manage complex client-side state. Leverage AI-assisted coding tools.

We're currently looking for an experienced Frontend Developer (React TypeScript) to join the team of ... appreciated - we believe in the power of feedback, as well as the one you give us TL;DR Senior Frontend Developer

SharePoint Developer role involving enterprise application development on SharePoint on-premises using SPFx, React/TypeScript, and .NET/C#. Responsibilities include code evolution, integration with external systems, and working within a Scrum team.

You'll be part of the Developer Experience (DevX) Standards and Controls function, responsible for building

We are looking for a Data Modeller / Expert Data Engineer to help design and build modern backend solutions

We are able to offer you a senior developer role with opportunity to support your further professional ... Agentic Automation Lead Developer works within a technologically versatile team located in Poland, providing