ruby English-speaking jobs in Bielsko-Biała

Experienced SEO Link Builder sought to deliver powerful backlinks in the casino space. Focus on landing high-authority, white-hat links that boost rankings and drive traffic.

Machine Learning Engineer to design, deploy, and maintain production-ready ML systems. Focus on operationalizing models, building data pipelines, and implementing MLOps best practices. Requires 4+ years of experience in ML Engineering, strong Python skills, and experience deploying models into production.

Design and implement AI/ML solutions, develop scalable machine learning models, and create architectures for NLP applications. Provide technical leadership and guidance to data scientists and engineers.

Design, build, and operate backend services for unstructured storage in RelativityOne using C#/.NET. Implement Azure-based storage solutions, including lifecycle policies, multi-tenant isolation, and encryption. Collaborate with product engineering, SRE, and security teams.

Provide bookkeeping and account management services to small business clients. Reconcile accounts, maintain ledgers, and conduct monthly financial reviews. Serve as the primary point of contact for clients, offering support via chat, email, and phone. Collaborate with internal teams to resolve client concerns and ensure satisfaction.

Develop and maintain Python-based applications and tools supporting AML solutions. Implement, optimize, and deploy machine learning models to enhance product capabilities. Collaborate with data scientists and teams to integrate models into production systems.

Senior Full Stack Engineer (.NET+React) will design, build, and configure end-to-end applications. Requires proficiency in C#, React, and core C# frameworks such as Entity Framework. Experience with OPC-UA, MQTT, Apache Pulsar, and Test Driven Development is also needed.

Senior IT Analyst with 5+ years of experience in complex IT environments. Drives end-to-end requirements management, translating business needs into testable requirements. Collaborates with stakeholders, IT teams, and developers. Experience with BPMN, UML, and Agile methodologies. Fluency in English required.

Planner develops project plans, monitors progress, and analyzes scope changes. Requires experience in shipbuilding or related industry, planning systems (e.g., Primavera P6), and strong communication skills.

The Health Insurance Subject Matter Expert will shape and build CoverGo's health insurance product capabilities. This role provides deep health insurance expertise to the product development lifecycle, ensuring features are accurate, compliant, and aligned with real-world insurance operations.

Full Stack QA Engineer to design, develop, and maintain UI and API autotests (Python + Playwright). Build E2E scenarios with backend validation and improve test stability. Collaborate with backend/frontend/QA engineers. Requires 5+ years of test automation experience, proficiency in Python 3, and experience with REST and gRPC API testing. Fluent in Russian.

Senior Python Developer to design, develop, and implement data-driven solutions using Big Data and cloud technologies. Collaborate with data scientists and business experts to integrate models and create value for the company.

Android Framework Architect will design platform architecture for customer products and work with the Platform architecture team to evaluate and drive optimal solutions. Requires strong understanding of Android stack, including Linux kernel, Android ecosystem, and debugging. Experience with hypervisor-based multi-VM solutions and Android native services or Linux user space is needed.

Senior Mechanical / Electromechanical Design Engineer will create and own solid models and layouts based on design specifications. Develop detailed drawings of parts and assemblies, ensuring designs meet manufacturability, testability, and reliability criteria. Perform tolerance stack-up analysis and participate in design reviews. Support prototype builds and laboratory testing of mechanical and electro-mechanical systems. Analyze test results and support design improvements. Prepare and maintain technical documentation. Collaborate with teams to resolve design and product non-conformances. Requires 6+ years of experience in mechanical design, a degree in Mechanical Engineering or Mechatronics, and proficiency in CREO and GD&T.

Designs, develops, and maintains high-quality Android applications. Implements new features and improves existing functionality based on product requirements. Collaborates with cross-functional teams. Requires 4 years of Android development experience, strong Kotlin proficiency, and knowledge of Android SDK, architecture, and Jetpack libraries.

Process Manager for travel and expense management. Responsible for harmonizing, standardizing, optimizing, and automating processes across the KION Group. Requires experience in travel & expense management, finance, and process management, as well as proficiency in SAP Concur, SAP core modules, and Microsoft Office applications. Fluent English required.

Penumbra seeks a Territory Manager – Peripheral (m/f/d) to drive sales growth in East Poland. The role involves managing existing accounts, identifying new business opportunities, and supporting physicians during endovascular procedures. Requires 3-5 years of experience in peripheral vascular/endovascular intervention sales with strong interventional (cath lab/OR) exposure. Fluency in Polish and English is required.

Senior Python Engineer to build backend systems and infrastructure for a global fintech project's machine learning platform. Responsibilities include designing and building production-grade Python services, developing real-time data pipelines, and improving developer experience. Requires strong Python experience, distributed systems knowledge, cloud and containerization skills, and experience with databases and data pipelines.

Software Engineer needed for data protection workload within Microsoft solutions. Design, implement, and maintain features using modern C++. Collaborate with teams to troubleshoot, improve performance, and identify solutions. Requires 3+ years of backend development experience, strong C++ skills, and experience with Linux, SQL, and APIs.

Performance QA Engineer will design, develop, and maintain automated performance test suites for distributed systems. Responsibilities include identifying system bottlenecks, analyzing performance metrics, and collaborating with engineering teams to implement remediation strategies.