250 backend developer English-speaking jobs in Poznań

  • Allegro
  • Poznań
  • May 6
Our core backend technologies include Java , Kotlin , Spring, and ADK . ... You will value our Developer Experience and the full platform of tools and technologies that make creating ... and Retrieval-Augmented Generation (RAG) to semantic search optimization, you'll tackle the complex backend
  • Allegro
  • Poznań
  • March 30
Our core backend technologies include Java , Kotlin , Spring, and ADK . ... You will value our Developer Experience and the full platform of tools and technologies that make creating ... and Retrieval-Augmented Generation (RAG) to semantic search optimization, you'll tackle the complex backend
  • Transition Technologies MS
  • Poznań
  • May 18
Your responsibilities: Define and execute test strategies across the full stack: backend APIs (FastAPI ... We are looking for you, if you have: 3–5 years of QA experience with a fullstack focus (backend frontend
  • CKSource
  • Poznań
  • May 14
If you have a stronger background in the platform layer, backend, and APIs - and would like to continue ... This role sits at the intersection of product thinking, engineering depth, and developer empathy. ... We are part of Tiugo Technologies, a family of API-first developer platforms (CKEditor, TinyMCE, ButterCMS
  • Devapo
  • Poznań
  • May 6
Full-Stack Developer (Java React) We are looking for a Full-Stack Developer responsible for developing
  • Capgemini Polska
  • Poznań
  • May 15
role is responsible for driving the technical delivery of AI-powered capabilities across frontend, backend ... solutions, including orchestration flows, RAG pipelines and model interaction logic Connect frontend, backend ... processing and model integration Strong experience with React and modern frontend development Solid backend ... implementation of scalable, user-centric frontend solutions using React Architect and build high-performance backend ... engineering and evaluation Experience building APIs, microservices and integrated systems across frontend, backend
  • DCV Technologies
  • Poznań
  • May 6
services for the Commercial Data Manager (CDM) Take ownership of HubSpot backend maintenance and further ... knowledge sharing Ensure high code quality, scalability, and reliability Must-Have Skills 6 years of backend ... Duration: Until 31 Aug 2026 (extension likely) Language: English B2 Responsibilities Develop and extend backend
  • StrategicsIQ
  • Poznań
  • May 6
Key Responsibilities Develop and maintain backend services and APIs using Golang Design clean, efficient ... The ideal candidates will have a strong background in backend development and experience building high-performance
  • DCV Technologies
  • Poznań
  • May 6
model-based test automation, SAP integration, and regression execution , working across UI, API, and backend ... maintain automated test cases using Tricentis Tosca Automate SAP processes using Tosca TBox (UI, API, backend
  • First Connect Insurance
  • Poznań
  • May 18
As a Senior Backend Engineer in this role, you will own this domain. ... technical solutions We might be a match if: You have 6 years of commercial experience with a heavy focus on backend
  • Capgemini Polska
  • Poznań
  • March 30
Integrate mobile applications with backend services, APIs, cloud platforms, and enterprise systems. ... Collaborate closely with UX/UI designers, product owners, backend developers, and QA teams to deliver
  • Upside
  • Poznań
  • May 6
Key Responsibilities: Design and Development: Lead the design and development of robust backend systems ... dynamic development team, sized between 3 to 9 members, dedicated to crafting scalable and resilient backend ... and incorporate new technologies or methodologies to improve the efficiency and reliability of our backend ... commercial experience in building web-based application (5 years). → Experience in at least one of Upside’s backend
  • Transition Technologies PSC
  • Poznań
  • May 6
Maintain and extend existing automated test suites integrated with CI/CD pipelines Test REST APIs, backend ... automation Strong understanding of QA practices for cloud-native and distributed systems Experience testing backend
  • Transition Technologies PSC
  • Poznań
  • May 6
This posting is part of a Talent Pool for the Go Developer role.
  • Transition Technologies PSC
  • Poznań
  • May 6
This posting is part of a Talent Pool for the .NET Developer role. ... We are seeking a Regular or Senior .NET Desktop Developer to work on an active client project involving ... Support and mentor less experienced developers Requirements Commercial experience as a .NET Desktop Developer
  • Svitla Systems
  • Poznań
  • May 6
Ability to work on backend services that support UI applications. ... Requirements Strong Java backend development experience. Experience building and integrating APIs.
  • ITMAGINATION
  • Poznań
  • May 20
We are looking for experienced team players to fill the Mobile Developer position and participate in
  • Capgemini Polska
  • Poznań
  • May 18
It combines frontend, backend, and AI-powered product development, with a strong emphasis on scalability ... React and modern frontend development practices Experience with Node.js, JavaScript/TypeScript, and backend ... Engineering, or equivalent practical experience Strong hands-on full-stack experience across frontend, backend ... interactive and scalable frontend applications using React with a focus on performance and usability Develop backend
  • Monterail
  • Poznań
  • May 6
We’re specifically looking for a Principal Software Developer (Ruby on Rails & React) - Freelancer What ... platform (Pub/Sub, Chat, LiveSync) and use the product yourself to gain a first-hand understanding of the developer
  • DCV Technologies
  • Poznań
  • May 6
We are looking for a Python Developer with GenAI on behalf of our client, a well-known and fast-growing
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