ruby English-speaking jobs in Bielsko-Biała

The Jagiellonian University's Faculty of Biochemistry, Biophysics and Biotechnology is seeking a candidate for an assistant position. Applicants must hold a Master's degree or equivalent, demonstrate research aptitude, and be prepared for teaching.

Senior Python Full-Stack Engineer to build scalable backend services and intuitive frontend experiences using React. Develop and maintain a next-generation endpoint protection and detection platform. Collaborate in an Agile environment and utilize AI-powered development tools.

Provide customer service via phone, email, chat, and social media for hygiene products. Respond to inquiries and complaints. Must be fluent in French (C1/C2) and English (B2).

Account Executive will identify new business opportunities, develop sales strategies, and close deals with enterprise clients. Responsibilities include building relationships, conducting needs analysis, and managing the sales pipeline. Strong communication, presentation, and relationship-building skills are required. Must have a proven track record in B2B sales, preferably with SaaS products. Fluency in English and German is essential.

Sales Development Representative to spearhead the launch of a new market in Slovakia and the Czech Republic. Responsibilities include identifying key accounts, engaging with potential customers, and collaborating with Account Executives. Native/Fluent Slovak/Czech and English proficiency required. 1+ years of sales or outreach experience preferred.

Amer Sports Global Business Center seeks a Purchase to Pay Accounting Assistant to support invoice processing for North America entities. The role involves working with the SAP system, matching invoices to purchase orders and goods receipts, managing vendor open items, and ensuring timely processing in compliance with SLAs.

We seek a Magento Developer to build and maintain eCommerce websites. Responsibilities include website configuration, development, security maintenance, and performance optimization. Requires 5+ years of experience, Magento certification, and expertise in PHP, JavaScript, HTML, CSS, and MySQL.

Senior UX/UI Designer will create a new enterprise-class hospitality product from scratch. Responsibilities include designing a new Design System, collaborating with other designers, and turning requirements into working functionality.

Corporate Security Engineer will lead initiatives across key security domains including Endpoint Security, SaaS Security Posture Management (SSPM), Identity & Access Management (IAM), Identity Governance, and data-loss prevention. Collaborate with IT, engineering, and business stakeholders to integrate security tools, policies, and processes. Design and build automation scripts and tools to streamline security workflows. Help drive our Data Loss Prevention (DLP) and insider risk programs.

Develop and improve ML models, collaborate with teams on production models, and maintain models in production. Experience with LLMs, RAG architecture, and agentic systems is required. Strong Python, Docker, and data pipeline experience is also needed.

Lead complex digital transformation projects for enterprise clients, leveraging Microsoft technologies. Manage teams, build client relationships, and drive technology solutions. Requires 5-7+ years of experience in consulting, technology delivery, or project management with proven experience in Microsoft technologies.

The Office Administrator/Coordinator will lead statutory, fiduciary, and employee administration in Poland. Responsibilities include supporting HR with employee documentation, managing occupational health and safety, coordinating foreign employee work permits, and administering local benefits.

Leads a team of CAT & Pricing Modelling specialists, supporting stakeholders and resolving data quality issues. Manages team performance, development, and process improvements. Requires a university degree, fluency in English (C1 level), and strong analytical and problem-solving skills.

Shape and scale customer success for a high-growth AI-driven technology company. As a founding member of the EMEA customer success team, you will own the full enterprise customer lifecycle, from onboarding to renewal and expansion. You will act as a trusted advisor to technical and executive stakeholders, ensuring customers maximize value and achieve their business goals.

Senior JavaScript Engineer will build new editor capabilities for SuperDoc, an open-source document editor. Responsibilities include diving deep into MS Word OOXML parsing, designing AI integrations, and collaborating with co-founders, sales, and customers.

Lead a cross-functional R&D team building, scaling, and productizing distributed microservices. Drive technical direction of cloud-native services enabling secure, just-in-time access to multi-cloud environments.

Provide technical assistance and support to partners, troubleshooting and resolving issues. Collaborate with internal teams and partners to ensure service and support readiness. Contribute to the knowledge base and participate in trainings.

Senior Accountant needed for a Global Shared Services Center in Gdańsk. Responsibilities include general ledger transactions, account reconciliation, fixed asset management, month-end closing, financial reporting, tax declarations, and audit support. Requires a finance degree or equivalent, 5+ years of accounting experience, and strong English (B2 minimum).

Software Engineer III will develop product or system code, collaborate on design and code reviews, and contribute to documentation. Responsibilities include triaging product issues, debugging, and implementing solutions in specialized ML areas. Requires a Bachelor's degree and 2 years of software development experience or 1 year with an advanced degree. One year of experience with speech/audio, reinforcement learning, ML infrastructure, or another ML field is also required.

Senior Software Test Engineer to own test strategy, create test specifications, and maintain test infrastructure. Requires 6+ years of experience, expertise in testing methods, C# and TypeScript, and excellent English communication.