ruby English-speaking jobs in Bielsko-Biała

As a Senior Machine Learning Engineer, you will own the business-critical logic behind our campaign-based flash sale model. You will build and deploy data-driven and machine learning solutions for portal personalization and campaign ranking.

Senior Fullstack Mobile Engineer KMP role building digital financial products. Develop shared logic via KMP, design backend services with Java/Spring Boot, and enhance customer-facing mobile features. Requires strong Kotlin/KMP and mobile architecture skills.

Drive growth for an eco-friendly brand in Poland by owning the creative engine. This role requires turning consumer insights into high-performing ad concepts, optimizing the Shopify experience, and managing performance KPIs.

Business Analyst for Helvetia Baloise Group will support Product Owner on Guidewire system expansion. Develop and implement technical specifications, create test concepts, and analyze new technical possibilities. Requires strong German language skills, insurance process knowledge, Guidewire experience, and project experience in an agile framework.

Junior Technical Project Manager Intern supporting complex projects. Requires fluency in German and English, a technical background, and a passion for technology and AI. Focus on coordinating tasks and gathering business needs.

Procurement Team Leader to monitor transaction processing and oversee work allocation. Responsibilities include driving efficiency, managing international suppliers, and supporting P2P process transition. Requires a Bachelor's degree and 4+ years in Supply Chain/Procurement with direct team leadership experience.

Senior Product Designer to create user experiences for complex SaaS products used by marketers, analysts, data teams, and enterprise clients. Translate product requirements into intuitive and scalable interfaces, collaborating with Product Managers, Engineers, and UX Researchers. Lead the design process from discovery to high-fidelity design, utilizing AI tools to support research, ideation, and design exploration.

Analyze and strategize account management and upselling. Contact existing customers for consultations and work in a target-driven environment. Problem solve and consult with clients to provide the best-selling solution for their advertising campaigns. Build strong client relationships by optimizing accounts and increasing program revenue. Meet daily productivity requirements while contributing to team sales targets.

Business Development Manager drives new logo acquisition and owns the full sales cycle in CEE. Requires 5+ years in enterprise solution sales, fluency in English and Polish, and expertise in MEDDPICC.

Team Leader for Penetration Test Coordination Team leads EMEA pentest campaigns for CIB services (Applications, API, Infrastructure, Mobile). Requires 8-10 years in project management/service delivery with strong cybersecurity experience.

This role involves ensuring financial stability by verifying internal postings, reconciling intercompany transactions, and performing daily activities in financial management systems. You will support treasury operations and collaborate with internal finance teams.

Junior Commercial Sales Manager supports the Global Sales team by reviewing NDAs, managing credit rating requests, and aligning logistics for compression projects. Requires a Business Administration degree, initial sales/project management experience, and fluent English.

Lead IT projects for financial institutions, primarily insurance companies. Coordinate projects, define functional requirements, and mentor team members. Work with developers, architects, and clients.

Customer Service Representative supports Order Validation by resolving order discrepancies, updating information, and handling order changes. Requires B2 proficiency in English and Spanish, and at least one year of relevant Customer Care Operations experience.

Senior Software Engineer Fraud to design and implement real-time fraud decisioning services in Python or Kotlin. This role extends the Fraud Decisioning System to new markets and integrates risk vendors. Requires 5+ years building backend systems at scale.

Build production AI systems reasoning over industrial knowledge graphs (PlantGraph). Focus on LLMs, RAG, and agent-based systems to solve real-world engineering problems by integrating AI with structured data and workflows.

Mid Senior Data Engineer role focusing on designing and maintaining scalable batch and real-time data pipelines on AWS. Requires experience with Python, SQL, dbt, Airflow, Kafka, Spark, and cloud data infrastructure.

Join an IT Specialist Traineeship to gain practical experience in Business Analysis or Go Development. Candidates must be motivated, eager to learn, and ready for intensive growth in software development.

Senior Business Development Manager for Clinical Trial Diagnostic Services. Build stakeholder relationships with pharma, CROs, and biotech. Lead proposal development and drive revenue growth. Requires a Master's degree and 3 years in sales/BD.

Sales Executive for Financial Solutions. Responsibilities include diagnosing client financial needs and presenting debt resolution programs. Requires consultative sales experience and proficiency in Polish or C2 English.