65 backend developer English-speaking jobs in Gdynia

Our client needs the support of an experienced Java Backend Developer to help build a brand‑new greenfield ... Scope of responsibilities Build and evolve a modern backend using Java 21 and Spring Boot Design and ... long‑term maintainability Requirements At least 8 years of experience working with Java, ideally on backend

Backend Developer (Python) Location: Gdynia / Hybrid (2 days remote) Type: B2B or Employment contract ... About the Role We’re looking for a Backend Developer (Python) who will join our team and help deliver ... Your Responsibilities Develop and maintain backend solutions using Python (Django, Django REST Framework ... like Langchain or Langgraph Experience with Generative AI (GenAI) solutions and their integration into backend

Developer with a pragmatic, end-to-end mindset - someone who is not afraid to step into frontend territory ... complex financial instruments and calculations in a fintech environment , building and maintaining backend ... Responsibilities you'll have Design, develop, and maintain robust backend services and APIs in Java Deliver ... combined with continuous growth Autonomy and high‑quality collaboration Project We are looking for a Java Backend ... end-to-end features independently - from backend logic to frontend implementation (e.g. generating monthly

Develop and enhance Java applications for taxation, account management, and investment processing, ensuring regulatory compliance.

AI Backend Python Developer (Hybrid in Gdynia) Location: Gdynia / Hybrid (2 days remote) Type: B2B ... About the Role We’re looking for a AI Backend Developer (Python) with interest or experience in AI/ML ... Your Responsibilities Develop and maintain backend solutions using Python (Django, Django REST Framework ... such as Django ORM or SQLAlchemy Build and integrate AI - powered features (LLMs, GenAI APIs) into backend

Participate in backend architecture and technical decisions. ... Svitla Systems Inc. is looking for a Senior Node.js Developer with AWS for a full-time position (40 hours ... Responsibilities Develop and maintain backend services in Node.js. ... Requirements 4-5 years of experience as a Back End Developer with Node.js and NestJS (for complex services ... Understanding of data-heavy backend systems (aggregation, querying, performance).

MapReduce Oozie Git Ansible Bamboo Jenkins Optional Java Flink Kafka Your responsibilities Work within the Backend ... Growth Opportunity: Potential to evolve into an Expert IT Developer role. ... Senior Hadoop Big Data Developer Miejsce pracy: Gdynia Technologies we use Expected Hadoop Scala Linux

Developer, Business Analyst, and QA Engineer. ... You will work within a mixed frontend-backend squad, collaborating closely with your Tech Lead, Senior ... , BA, QA, Backend Developers) Translate business requirements and UI/UX designs into clean, maintainable ... frontend code Integrate frontend applications with backend APIs and services Participate in code reviews ... As a Frontend Developer, you will be part of a cross-functional squad responsible for designing and developing

Requirements 5+ years of experience as a Java Developer 2 years of experience in a Tech Lead role Strong ... systems Experience working in a software house / consultancy environment Very good understanding of backend ... architectures and development best practices Nice to have Experience with cloud platforms (from a developer ... approaches Responsibilities Take technical ownership of multiple projects Design and architect end-to-end backend

As a Fullstack Developer, you will play a key role not only in delivering clean, scalable, and maintainable ... Build scalable, maintainable, and high-performance backend services Develop modern, responsive, and ... Responsibilities Design and develop fullstack solutions (backend and frontend) within a greenfield project

testing, code reviews, and best practices Expected competences and knowledge 5y of experience as Java Developer ... Responsibilities you'll have Designing and developing scalable backend services using Java and Spring ... Strong experience in Java ( Java 21) with solid understanding of backend development Extensive hands-on ... on architectural decisions, technology choices, and development standards, helping to shape a robust backend

Then you should check out our Senior Python Backend Engineer opening as well . ... Lead Python Backend Engineer Browsing jobs can get boring, so let us convince you to actually apply for ... We’re continuously looking for backend engineers who want to work on cutting-edge Python-based systems ... Working at Reef in practice Reef Technologies is a fully remote Python backend software house. ... Lead Python Backend Engineer wanted Do you have at least 5 years of programming experience, including

As a Senior Fullstack Developer, you will be responsible for designing, developing, and maintaining software ... digital transformation of financial markets Strong full-stack exposure - ability to work across frontend, backend ... design, and event-driven architecture Full-stack mindset with the ability to move across frontend, backend

Responsibilities: Design and development of applications in fullstack architecture (backend frontend ... ) Creation and development of the backend layer based on Java 17 and Spring Boot Building and developing ... years of experience with: React, Spring Boot and JPA Experience in building full-stack applications (backend

libraries Design and implement RESTful APIs and microservices Integrate front-end applications with backend ... developing modern, user‑friendly interfaces with React or React Native and integrating them with robust backend ... Design and develop responsive web and mobile applications using React or React Native Build and maintain backend

We’re continuously looking for backend engineers who want to work on cutting-edge Python-based systems ... Working at Reef in practice Reef Technologies is a fully remote Python backend software house .

Full-Stack Software Engineer (Go) to design, implement, and maintain cloud services for a logistics platform. Responsibilities include developing API integrations, automating processes, and collaborating with cross-functional teams. Requires 4+ years of experience with GoLang, TypeScript, React, AWS, and MySQL.

Junior Quantexa Developer will support a financial project focused on data validation, ETL processes, and analytics within a Hadoop-based platform. Responsibilities include acting as first-line support, analyzing issues, executing ETL runs, and writing/optimizing queries.

Python developer for a finance/stock exchange web portal project. Experience with Linux, Python, Bash, Jenkins, Docker, Kubernetes, and KVM/QEMU required.

Link Group seeks experienced React developers for a finance/stock exchange project. The project involves building a web portal for managing financial accounts and investments. Required skills include ReactJS, Web App principles, RESTful API, Karma/Jasmine, Git, OOP, and Docker/Kubernetes.