customer service English-speaking jobs in Zabrze

Costing Analyst will lead and control actual costing processes, manage price variances, and maintain material master data. Responsibilities include performing cost analysis, providing insights, and collaborating with stakeholders to improve processes. Requires a university degree in a relevant field, +7 years of experience, fluency in English, and proficiency in SAP MM and Excel.

Leads and develops commercial operations for key customers within Stora Enso's Containerboard Business Area. Responsible for account strategy, customer value proposition, and sales resource allocation. Requires proven senior-level sales experience, strong business acumen, and fluency in English.

Subsidiary Procurement Manager will lead and empower a team, overseeing merchandise procurement from European suppliers. The role involves managing regional supply, resolving complex issues, and ensuring operational excellence and compliance. Requires a seasoned professional with procurement, supply chain, and team leadership experience.

As a Senior FP&A Analyst, you will partner with finance and business stakeholders to deliver accurate planning, reporting, and analysis for the International Sports portfolio. You will prepare forecasts, budgets, and variance reports, and support strategic decision-making through financial analysis and modeling.

Experienced Data Scientist to develop and implement machine learning models for demand forecasting. Responsibilities include research, experimentation, and collaboration with cross-functional teams. Requires 5+ years of experience in data science and machine learning with a proven track record of business impact. Proficiency in Python and its ML/data stack is essential. Expertise in time-series forecasting, feature engineering, and explainability is required. Master's or PhD in a relevant field is necessary.

Lead the re-deployment of a Manufacturing Execution System (MES) across 16 production lines for a global hygiene products company. Manage a team of on-site and remote specialists, ensuring successful delivery within scope, time, and budget.

The People Operations Lead will own global People Operations and Shared Services, delivering onboarding, employee changes, payroll, mobility, immigration, and offboarding across all studios. This role will manage employee contracts, HR administration, benefits, and personnel records. The People Operations Lead will ensure compliance with employment legislation, GDPR, and company policies.

Designs and implements backend services and APIs to automate provisioning, configuration, and lifecycle operations for CoreWeave's global server fleet. Develops Kubernetes custom resource definitions (CRDs) and integrates with vendor and internal APIs. Collaborates with hardware engineering, data center operations, and platform teams.

This role supports the administration and governance of Microsoft Power Platform across development, validation, and production environments. Responsibilities include platform administration, solution architecture, development, and ensuring compliance with enterprise standards. The engineer will design, develop, and support AI-first automation solutions using Power Apps, Power Automate, and Copilot Studio.

Experienced process engineers and process design specialists collaborate on state-of-the-art process design, process control, HAZOP studies, operator training, and start-up activities. Responsibilities include process simulation, P&ID development, supporting customers during project execution, and coordinating project activities with stakeholders.

Experienced leader to develop and execute business development and sales strategies for a defense technology company. Minimum 8 years of experience in strategy, business development, or sales within a leading defense organization. Proven track record of success in the Polish market. Strong understanding of the defense industry and its regulations. Security clearance at Confidential level required.

Provides advisory and guidance on export control, due diligence, trade compliance, and sanctions regulations to ensure alignment with regulatory requirements. Conducts due diligence on transactions and business partners, supports export classification and licensing processes, and contributes to risk assessments and compliance frameworks. Collaborates with cross-functional teams to safeguard international business activities.

Senior Full Stack Engineer to build and ship React features and Python backend APIs. Experience with microservices, asynchronous processing, and CI/CD pipelines required.

Lead the development of enterprise-grade, agentic AI systems and autonomous conversational agents. Design and deploy scalable AI/ML solutions on Google Cloud Platform (GCP), leveraging LLMs and advanced agentic architectures.

Lead the design, delivery, and optimization of secure, scalable network connectivity solutions for enterprise cloud transformation initiatives. This role involves architecting hybrid cloud connectivity across AWS and Azure, leading complex troubleshooting, and driving automation and efficiency improvements.

Leads a team of 10 engineers, responsible for technical and delivery outcomes. Drives team goals, manages incidents, and improves engineering processes. Sets development goals for reports, participates in hiring, and fosters a healthy team dynamic. Requires strong backend technical skills, particularly Java and AWS infrastructure, and excellent communication in English. Experience with AIDLC is advantageous.

Tripadvisor seeks a People Operations Director to lead HR for its growing Kraków technology hub. This role requires deep Polish HR expertise, compliance knowledge, and experience partnering with both local and global teams. Responsibilities include strategic HR consulting, local policy implementation, employee relations, and workforce enablement.

Key Account Manager to build and grow Massive Bio's referral physician network in Poland. Focus on educating oncologists on clinical trial enrollment services and generating patient referrals. Requires 4+ years of Hematology/Oncology sales experience in Poland and an established network of Polish Hematologists and Oncologists.

Solutions Architect will design and develop cloud-based and on-premises solutions for clients. Responsibilities include consulting with clients, creating architectural visions, and producing detailed specifications. Requires expertise in multi-vendor service integrations, software, operating systems, and infrastructure designs. Must have experience in client engagement, consulting, and needs assessment. A bachelor's degree in a related field is required.

Senior Full Stack Developer with 6+ years of experience in Angular, TypeScript, Java Core, and Spring Boot. Responsible for solution design, technical discussions, and delivering high-quality code changes. Must have experience with REST APIs, unit testing, and Agile development.