python English-speaking jobs in Chorzów

Financial Controller to support financial reporting and oversight of real estate development projects in Poland. Responsibilities include financial planning, budgeting, cost analysis, reporting, and project financing. Requires 3-5 years of experience in cost control, financial analysis, or controlling, preferably in real estate.

Senior Software Engineer will architect and scale backend systems for solar installations. Develop new features, integrate with solar ecosystem players, and build functionality for the solar design platform. Requires 5+ years of software engineering experience, proficiency in Java, and strong computer science fundamentals.

Sets up, operates, and reconfigures injection molding machines according to technical documentation. Monitors production processes and responds to quality deviations. Removes machine malfunctions and collaborates with the maintenance department.

Senior QA Engineer needed for a centralized Test Automation team in the Property Finance business area. Responsibilities include analyzing services, designing test cases, implementing tests using Java, Rest Assured, and Cucumber, and maintaining and updating test scripts. Requires 5+ years of experience as a Test automation engineer, 5+ years of Java experience, and proficiency with REST services, Jenkins, Cucumber, and SQL.

Manage and grow export sales across international markets. Develop and execute export sales strategies, manage a sales team, and identify new business opportunities.

Senior Android Developer to lead development of large-scale Android applications. Requires expert-level knowledge of Android development, Java and Kotlin, and experience with Android Studio, SDK, and related tools. Must have strong understanding of Android architecture components, Jetpack libraries, and UI design principles. Experience with RESTful APIs, dependency injection, testing, and CI/CD practices is essential.

Data Scientist / ML Ops Engineer to build, deploy, and scale machine learning solutions in production environments. Strong ownership of end-to-end ML pipelines and operational excellence.

Visa is seeking Software Engineers to design, build, and test software products. Responsibilities include collaborating with product owners, developing technical documentation, and contributing to the development and delivery of new features. Qualifications include a degree or 3 years of experience, 1-2 years of relevant experience, and expertise in Java or C# or .NET.

Designs, develops, and maintains web and mobile app components and backend services and APIs. Collaborates with cross-functional teams to address technical debt and optimize platform performance. Monitors and troubleshoots production systems, ensuring compliance with industry standards.

Golang Developer needed to design, develop, and maintain backend infrastructure for an IoT/industrial data platform. Requires 5+ years of backend development experience, proficiency in Go, and experience with containerized development, distributed architectures, and event-driven systems.

Senior Java Developer needed for a banking client in Warsaw. 5+ years of experience required with Java (17+), Spring Framework (Boot and Batch), and SQL. Expertise in Oracle or PostgreSQL, hexagonal architecture, and CI/CD/Dev tools (GIT, Docker/Kubernetes, GitHubActions). Must be fluent in English.

Develops global IRB models for Wholesalebank portfolios, performing tasks throughout the model lifecycle. Requires expertise in IRB/IFRS9 models, programming (e.g., Python, SAS), and data modeling. Collaborates with stakeholders, IFRS9 team, and data team.

Supports global liquidity management by producing regulatory reports (LCR, ALMM, NSFR, PRA110) and performing data analysis. Identifies and resolves data issues within large datasets, performs product reconciliations, and assists with variance analysis. Leverages tools (Alteryx, Tableau, Excel) to implement process improvements and support technology enhancements.

Design, develop, and operate scalable routing services for Mapbox's Directions and Logistics APIs. Drive the design, development, and testing of Mapbox tools and shape internal tools and automations. Participate in end-to-end feature implementation, code reviews, and on-call rotation. Collaborate with product owners, sales engineering, and management.

Lead the design, implementation, and validation of scalable AI solutions. Experience in Machine Learning project leadership, team mentoring, and deploying solutions in cloud environments (AWS or Azure) is required. Strong Python skills, knowledge of ML libraries (Scikit-Learn, PyTorch/TensorFlow), and experience with SQL and NoSQL databases are essential.

Senior Java Developer will develop features in a Java application using Spring Framework, deliver high quality code, and communicate with stakeholders. Requires fluency in Java (11 & 17), Spring 5/6, GIT, and Docker. Experience with EMV payments, secure card display, and payment network integration is beneficial.

Selects and prepares paint colors based on provided samples or recipes. Operates computer systems for mixing and dosing. Performs quality control using visual and spectrophotometer methods. Documents recipes and production reports. Maintains order and safety in the paint mixing room. Collaborates with production, technology, and customer service.

Senior AI Engineer to design and build Generative AI applications on Azure. Focus on using LLMs to deliver solutions such as AI applications, agents, and chatbots. Requires 8-10 years of IT experience with 2-3 years hands-on experience using LLMs in production.

Lead the ConX engineering data product end to end. Define domain models and metric semantics. Design scalable, event driven data architecture. Ensure data quality, reliability, and trust.

Data Engineer to design, build, and maintain robust, scalable ETL infrastructure and data pipelines using Python, Airflow, Prefect, and cloud platforms like RDS, Redshift, or Snowflake.