397 backend developer English-speaking jobs in Lesser Poland Voivodeship

role, you will bypass maintenance of legacy systems to design and develop high-scale, event-driven backend ... Core Responsibilities Architect and scale mission-critical backend services using Node.js and TypeScript

We are looking for a strong Python Developer with database expertise to join a banking project. ... The role focuses on backend development, infrastructure as code, and cloud-based solutions within a regulated ... Search services/backends German language (nice, but not needed) Responsibilities Design and develop backend ... query optimization, performance tuning) Experience with API‑based Customer Search services or similar backend ... production systems and participate in incident analysis when needed Must have Strong experience with Python (backend

services to address identified architectural or performance issuesDevelop and maintain backend APIs ... development experienceStrong experience with NodeJS and modern backend frameworksCloud Infrastructure ... and enable efficient integration of new users and data sources.ResponsibilitiesAnalyze the existing backend ... team in evaluating the current data model, APIs, and data processing logicImplement improvements to backend ... and QA teams to maintain system reliability and performanceMandatory Skills Description5+ years of backend

services to address identified architectural or performance issuesDevelop and maintain backend APIs ... development experienceStrong experience with NodeJS and modern backend frameworksCloud Infrastructure ... and enable efficient integration of new users and data sources.ResponsibilitiesAnalyze the existing backend ... team in evaluating the current data model, APIs, and data processing logicImplement improvements to backend ... and QA teams to maintain system reliability and performanceMandatory Skills Description5+ years of backend

Mandatory Skills Description 5+ years overall working as a Software Developer on a similar technology ... Nice-to-Have Skills Description Strong familiarity with build pipelines, CI/CD, and frontend/backend ... stack 3+ years of experience with FrontEnd (TypeScript/React) 3+ years of experience with BackEnd (Java ... practices — from React-based UIs that make complex performance data understandable, to robust Java 21 backend

Skills What is relevant to have 5+ years overall working as a Software Developer on a similar technology ... What is nice to have Strong familiarity with build pipelines, CI/CD, and frontend/backend tooling. ... practices — from React-based UIs that make complex performance data understandable, to robust Java 21 backend ... stack (TypeScript/React on the frontend, Java and Spring or similar framework on the backend) - comfortable

Senior Python Developer Date: Feb 20, 2026 Location: Kraków, PL, 30-302 Working place: Hybrid Type of ... We are seeking a skilled and passionate Python Developer with proven experience in building scalable ... The ideal candidate should be able to design, develop, test, and maintain robust backend systems. ... AWS Use Docker and Kubernetes for containerization and orchestration Collaborate on RESTful APIs and backend ... containerization and orchestration Proven ability to design, implement, and consume RESTful APIs and backend

The project focuses on building and evolving a set of mission-critical backend services that support ... Responsibilities Design, develop, and maintain enterprise-grade backend services using Java 11+ and

SKILLS Must have - 5+ years overall working as a Software Developer on a similartechnology stack ( ... Nice to have - Strong familiarity with build pipelines, CI/CD, and frontend/backend tooling. ... TypeScript/React on the frontend, Java and Spring or similar framework on the backend) - comfortable

users and data sources.ResponsibilitiesAnalyze the existing React-based user interface and Node.js backend ... to identify performance, architectural, or integration issuesRefactor and improve UI components and backend ... interfaces and server-side logic used by administrators, customers, and auditorsDesign and develop backend

What You Will Do: Build and Enhance ProductsAs a Blazor Developer, you will play a key role in developing ... /UI development, you will also contribute to backend and database work when needed. ... What You'll Bring to the Team: Strong NET & Backend Development Experience: You have solid commercial ... Develop Fullstack Solutions (.NET Backend & SQL Server Included)While your main focus will be frontend ... experience with ASP NET, MVC, Web API, and Entity Framework, and you understand how to design scalable backend

Mandatory Skills Description: 3+ years overall working as a Software Developer on a similar technology ... practices — from React-based UIs that make complex performance data understandable, to robust Java 21 backend ... stack (TypeScript/React on the frontend, Java and Spring or similar framework on the backend) Deep understanding

per month in the office) B2 B Contract: 180 - 230 PLN / hour We are looking for a Kotlin / Java Developer ... Design, develop and implement backend features and selected UI components according to backlog priorities ... Design, develop and implement backend features and selected UI components according to backlog priorities ... per month in the office) B2 B Contract: 180 - 230 PLN / hour We are looking for a Kotlin / Java Developer

We are looking for a Senior Java Developer to help design and build a cutting‑edge application for investors ... You will be responsible for architecting, developing, and optimizing core backend functionalities while

Overview We are looking for a Senior Java Developer to help design and build a cutting-edge application ... You will be responsible for architecting, developing, and optimizing core backend functionalities while

Overview We are looking for a Senior Java Developer to help design and build a cutting-edge application ... You will be responsible for architecting, developing, and optimizing core backend functionalities while

We are looking for a Senior Java Developer to help design and build a cutting-edge application for investors ... You will be responsible for architecting, developing, and optimizing core backend functionalities while

We are looking for a Senior Java Developer to help design and build a cutting-edge application for investors ... You will be responsible for architecting, developing, and optimizing core backend functionalities while

Project Description We are looking for a Senior Java Developer to help design and build a cutting-edge ... You will be responsible for architecting, developing, and optimizing core backend functionalities while

We are excited to announce an opening for a Tech Leade Full-Stack developer. ... our ecological goals.Job DescriptionLead the design, development, and maintenance of comprehensive backend