ruby English-speaking jobs in Bielsko-Biała

Clinical Research Coordinator to support two Non-Small Cell Lung Cancer studies in Poland. Requires prior clinical research coordination experience and native Polish fluency.

Manage and moderate online communities across social and community platforms. Provide high-tier guidance and troubleshooting on supported titles. Enforce moderation standards consistently and escalate issues when required. Communicate insights and observations to internal stakeholders. Manage and moderate social media and community platforms in line with platform guidelines, community standards, and company policies. Respond to community inquiries, concerns, and reports with professionalism and empathy. Maintain a safe, inclusive, and respectful community environment.

Senior Account Executive will drive revenue growth in Central and Eastern Europe (CEE) by developing and converting new government customer opportunities. Responsibilities include managing the full sales cycle, building a qualified pipeline, and collaborating with internal teams to align Sayari's platform with client needs. Requires 7-12 years of experience selling complex solutions into government, defense, intelligence, or law enforcement environments. Fluency in English and Polish or German is required.

The UK Scout Association seeks a Unit Leader for the 26th World Scout Jamboree in Gdansk, Poland in 2027. The Unit Leader will lead a group of 36 young people and four leaders.

Implementation Engineer will deliver partner implementations from build to production. Responsibilities include exposing APIs, configuring sandboxes, automating onboarding, operating cloud-native partner stacks, and driving quality through testing and documentation.

Fleet Maintenance Engineer will optimize fleet maintenance strategies, implement product modifications, and analyze technical performance. Responsibilities include providing engineering support for tenders, promoting advanced maintenance technologies, and resolving obsolescence and safety issues. Requires a Bachelor's degree in a relevant engineering field and experience in fleet maintenance for rail or heavy transport.

Senior Data Risk and Control Manager will provide operational risk management expertise, including assessments, control environment, and audits. The role involves promoting data-driven decision-making, improving the control environment, and designing processes and controls for data movement integrity.

The Senior Enterprise Systems Engineer designs, implements, secures, and maintains enterprise systems, applications, and cloud platforms. Responsibilities include overseeing security and monitoring tools, managing privileged access, responding to security threats, and ensuring system reliability and performance. The role requires expertise in Microsoft Windows Server, Active Directory, Azure, and security operations.

Fullstack Developer with 5+ years of experience in Java and Spring Boot sought to design, develop, and maintain microservices. Expertise in Kafka, GCP, and Vue.JS required.

Experienced Senior Business Analyst needed for an international project in the financial market infrastructure. Responsibilities include analyzing business processes, modeling requirements using UML, and creating documentation for trading platforms and data systems. Must have 8+ years of experience in business analysis, expertise in reference data systems, and fluency in English and Polish.

Provides technology support in a law firm environment. Supports computer hardware and software, oversees system setups and moves, and assists with video conferencing and mobile devices. Troubleshoots issues, tracks requests, and escalates complex problems. Requires experience with Windows 11, Microsoft Office Suite, and common law firm tools. Must be proficient in English (C1/C2).

The Scrum Coordinator drives Agile execution in alignment with AutoSCRUM methodology for complex automotive development. Responsibilities include planning and facilitating SCRUM ceremonies, coordinating sprint execution, and ensuring team adherence to ASPICE and system engineering standards.

Provides support, certification, and documentation for storage and backup infrastructure. Manages storage and SAN infrastructure, automates tasks, and performs complex provisioning, maintenance, and disaster recovery. Collaborates with various teams within Technology.

Associate Software Engineer will collaborate on a team to design, develop, and deliver new features using Java, Vue.js, and related technologies. Responsibilities include integrating with other product teams, maintaining code quality, and assisting support teams. Requires 1+ years of experience with Java/J2EE, Source Code Management, SoapUI, Microservice development, and CI/CD DevOps. Experience with Spring, Hibernate, RDBMS, and unit testing frameworks is also necessary.

Provide 1st level support to system users, resolving requests and managing tickets in Jira. Collaborate with METRO group customers, ensuring timely data entry and monitoring ticket queues. Support access provisioning, solve issues using a solution catalogue, and maintain the team knowledge base.

Frontend Engineer will build and evolve frontend features using React and TypeScript. Collaborate with backend engineers to design and consume APIs. Own features end-to-end, from design and implementation to testing and maintenance. Improve frontend architecture and code quality.

Lead/Senior Developer to shape the architecture and implementation of Kotlin Multiplatform solutions for a driver-facing mobile application. Responsibilities include developing complex mobile functionality, leading technical decisions, and coaching junior developers. Strong Kotlin expertise, Android development experience, and solid architectural skills are required.

Masterdata Specialist ensures Microsoft Dynamics 365 Business Central configuration and maintenance for robust internal controls, compliance, and financial reporting. Responsibilities include managing approval workflows, user access, chart of accounts, dimensions, posting controls, and system monitoring.

Shape the future of AI-powered search across OLX verticals. Lead the design and evolution of OLX's Search AI Platform, developing LLM- and GenAI-based systems. Guide a cross-functional team of ML engineers, data scientists, and platform engineers. Prototype, evaluate, and productionize new ML models, including embedding-based retrieval, personalization, and relevance optimization. Collaborate with product and analytics teams to define success metrics, integrate with A/B testing pipelines, and measure real customer impact. Mentor and inspire data scientists and ML engineers across OLX's global hubs. Stay hands-on, driving implementation in Python and AWS while exploring state-of-the-art advances in LLMs, GenAI, and search infrastructure.

Maintain and develop Fulfillment Areas within SAP ECC and S/4HANA. Ensure system stability, support improvements, and align technical solutions with business needs. Collaborate with IT teams and business stakeholders to deliver high-quality SAP solutions.