backend developer English-speaking jobs in Świdnica

QA Engineer needed for a global insurance leader. Develop and maintain an integration layer for seamless communication between core systems and external platforms. Ensure backend systems reliability and performance through API testing. Collaborate with software development and IT teams to test new features and provide feedback. Analyze and troubleshoot problems, document findings, and work with teams to ensure timely resolutions.

Manages production processes in a subordinate department, ensuring efficiency and quality. Organizes and improves processes, collaborates with internal and external stakeholders, and reports KPI indicators. Requires 3-5 years of team management experience, a technical or production management degree, and fluency in English.

DataBricks Developer to support and develop new features for a production system managing clients and life insurance programs. Requires 3+ years of experience as a Data Engineer with strong Databricks, SQL, and Python skills. Experience in Azure cloud environment and data pipelines is essential.

Lead a team of Solution Engineers in designing, configuring, developing, and delivering IT solutions based on Microsoft Dynamics 365 CE and Azure. Drive technical strategy, ensure alignment with architecture and business objectives, and act as an individual contributor customizing, configuring, and engineering solutions.

Senior SDET / Automation Engineer to design and enhance scalable automation frameworks for web, API, mobile, and cloud-native applications. Develop automated tests using C#/.NET, Selenium, Playwright, Cypress, Appium, Postman, Bruno, Karate, RestSharp, JMeter, BlazeMeter, Azure Load Testing, and Azure DevOps. Collaborate with engineering teams to define testing strategies, release processes, and best practices.

Lead a team of instrumentation engineers, developing project designs, managing budgets, and ensuring project completion. Requires a Master's degree in Automation or related field, prior experience as an Instrumentation Engineer, and proficiency in AutoCAD and Smart Plant 3D.

Senior Product Marketing & GTM Manager, Edge Platform (Security & Delivery) Full-time The world’s digital experiences run on something invisible: the infrastructure and software that keep them fast, reliable, and secure. At Gcore, you’ll help design and deliver that foundation for an AI-driven world.

Senior Platform Engineer will build and maintain deployment infrastructure and tools supporting continuous integration and delivery pipelines. Responsibilities include working with engineering teams to define deployment practices, developing Kubernetes-based automation, and ensuring system reliability. Strong experience in DevOps, SRE, or Platform Engineering is required, along with knowledge of container technologies, scripting languages, and infrastructure automation tools.

Senior Machine Learning Engineer to design, develop, and evaluate AI features for JetBrains IDEs. Responsibilities include defining evaluation frameworks, diagnosing model performance issues, and collaborating with product teams. Requires 5+ years of experience in production-grade ML systems, LLM evaluation, and Python programming.

Senior Backend Engineer will design and build robust, scalable backend services supporting high-volume on-chain transaction flows across multiple blockchain networks. Responsibilities include owning end-to-end development of backend components and APIs, leading integrations with DeFi protocols, and optimizing existing production systems. Requires 7+ years of experience as a Backend or Full Stack Engineer, blockchain and Web3 experience, proficiency in Node.js and TypeScript, and experience designing and operating microservices in production CI/CD environments.

DevOps Engineer to upgrade and scale VOdds infrastructure across platforms, affiliate systems, and SEO sites. Responsibilities include infrastructure automation, CI/CD pipeline development, WordPress multi-site management, security implementation, performance optimization, and cost reduction.

Design, build, and operate shared AWS cloud services for over 700 accounts. Develop and manage automated platform capabilities covering the full cloud lifecycle, including networking, governance, identity, backup, and cost optimization.

Drupal Backend Developer will analyze tickets, enhance existing systems, and develop new functionalities within a Docker-based environment. Responsibilities include creating Drupal modules and themes, designing data structures, and utilizing configuration management. Experience with decoupled solutions using JSON API and GraphQL is required.

Senior DevOps Engineer will build and maintain high-performance infrastructure for AI/ML initiatives. Responsibilities include supporting group IT, creating and maintaining infrastructure, and ensuring reliable access to AI tools. Requires 5+ years of experience as a DevOps, SRE, or Platform Engineer, strong Kubernetes experience, Terraform expertise, and experience delivering data and AI/ML solutions in production for AWS and GCP.

Senior FullStack Engineer to design and implement scalable microservices using Node.js and TypeScript. Build and optimize asynchronous workflows with an Event-Driven Architecture. Design high-performance APIs and develop responsive web applications with React and Next.js.

Lead development and implementation of AI solutions, including LLM usage analytics and optimization, on GCP. Manage cross-functional teams, translate business problems into data science solutions, and architect data pipelines.

Senior C++ Software Developer to design, implement, and refine features for desktop, console, and web applications used in patient anatomy generation. Requires 3+ years of C++ experience, 1+ year of web application development in C++, and 1+ year of experience with Qt (versions 5 and above).

Experienced Performance Test Engineer needed to design and execute performance, load, stress, and scalability testing strategies for a global fintech platform.

Mid/Senior Android SDK Engineer will develop mobile advertising SDKs, collaborate with engineers and QA, and contribute to SDK architecture and performance optimization.

Backend Engineer to drive technology strategy, focusing on property and content management platform and Booking & Request Management Platform. 4+ years commercial backend development experience required. Experience with PHP (Symfony) or Node.js a plus. Strong API design, automated testing, and database management skills needed. Azure experience preferred. Excellent communication skills in English required.