backend developer English-speaking jobs in Świdnica

Senior Node.JS Developer to shape the technological direction of a new engineering hub. Build a high-performance payments platform, focusing on scalability, reliability, and security. 5+ years of Node.js experience and mastery of TypeScript required.

Sales Executive will re-engage clients, generate leads, and collaborate with the sales team. Requires proven B2B sales experience, strong HubSpot CRM skills, and cold calling proficiency.

Senior Power BI Developer needed to create insightful data solutions for clinical operations. Translate requirements into interactive dashboards, collaborate with developers, and ensure high-quality reports. Extensive Power BI experience, strong SQL skills, and Jira experience required.

Frontend Engineer to lead UI improvements, translate product requirements into interfaces, and build high-performance React and TypeScript applications. Collaborate with stakeholders, prototype solutions, and support production troubleshooting.

Senior Treasury Manager to manage global treasury operations, optimize payment processing, develop payment strategies, and mitigate financial risks. Requires 5+ years of finance experience in international companies, strong analytical skills, and proficiency in Excel.

Senior Frontend Engineer will lead design system efforts, building a shared UI foundation and addressing recurring frontend needs across product teams. They will define standards, documentation, and governance for UI consistency and accessibility, driving adoption and migrations.

Senior Full Stack Developer will design, develop, and maintain web applications using ReactJS and .NET. Responsibilities include driving technical decisions, mentoring team members, and ensuring architectural integrity. Requires deep technical expertise, problem-solving skills, and collaboration across teams.

Experienced Tax Manager needed to oversee all tax matters for a group of companies. Requires expertise in Polish tax regulations, compliance, and strategic advisory. Collaborate with finance, external advisors, and management.

Build and operate data systems for a real-time trading model. Design and manage high-throughput data ingestion pipelines, structure and prepare data for training, and monitor system health.

Senior .NET Developer to build and maintain APIs and services. Experience with .NET Core, ASP.NET Core, Entity Framework Core, and SQL is required. Experience with .NET Framework and Angular is a plus.

Analyze, design, integrate, and maintain OpenRTB integrations with supply partners. Develop and improve automation tools. Diagnose and resolve integration issues.

Senior Software Engineer to architect, design, and develop model-based applications for AI software solutions. Lead technical design and collaborate with teams to ensure alignment with Engineering policies. Minimum 5 years of software development experience and proficiency in Java, Python, or C#. Experience with DevOps platforms and a strong understanding of software quality and customer experience.

Senior FullStack Developer will develop and maintain backend functionality, integrate with frontend, implement new features, and optimize existing functionality. Requires excellent Python knowledge, experience with event-driven architecture, FastAPI framework, and Git version control.

MasterBorn seeks a Middle Product Owner with 2+ years of experience in SaaS product development or client management. Must have Agile experience and fluency in English and Polish (C1 level).

Experienced sales, consulting, or business development professionals sought for a remote, independent contractor role. Manage a client portfolio, promote digital personal development programs, and guide prospects through the onboarding process.

Technical Team Leader will develop web and desktop applications, manage a team of 2-5 developers, and oversee project execution. Requires experience in C#, front-end frameworks, JavaScript, relational and non-relational databases, and cloud platforms (Azure and/or AWS). Fluency in English is required.

The C&C GPO Product Owner – Balance Sheet Reconciliations manages and optimizes reconciliation processes across regions, ensuring accuracy, compliance, and efficiency. This role drives process improvements, automation, and strong internal controls within the GSK Close & Control organization.

Develop and maintain automation solutions for Windows Server and Client OS, Active Directory, and critical communication systems. Write scripts for efficient system management and collaborate in an agile environment.

Senior Python AI Software Engineer needed for contract role in Poland. Responsibilities include designing and building applications using Python, supporting component development, and collaborating with clients. Requires significant experience delivering at a Senior Developer level in an enterprise environment and deep understanding of Python and SQL Databases.

Senior Staff Regulatory Affairs Specialist will apply regulatory knowledge to guide strategy and execution. You will advise cross-functional teams on complex projects and support new product development for domestic and international markets. You will ensure regulatory compliance by conducting assessments and preparing submissions for product clearances and approvals.