ruby English-speaking jobs in Lublin

Senior Data Scientist to build and maintain machine learning models for predictive analytics, optimization, and forecasting. Experience with Python (TensorFlow, PyTorch, Scikit-Learn), SQL, and cloud environments (Azure, GCP, or AWS) required.

Data Engineer Intern role involving application development and production support. Requires good knowledge of Java, Object Oriented Programming, XML, and XSD. Focus is on tasks within the Cost Processing & Transactions cluster.

About Straumann Group At Straumann Group we’re on an exciting journey of growth, innovation, and impact - driven by our mission to improve oral health and transform millions of lives worldwide. United by purpose, we bring our best selves to work every day, embracing a high-performance, player-learner culture that inspires collaboration, curiosity, and ambition.

Product Designer for internal tools, requiring 3 years of production experience. Must be proficient in Figma, comfortable with data-dense interfaces, and utilize LLMs in design. Focus on shipping features that move operational metrics.

IT Business Analyst needed to drive AI-first software delivery. Responsibilities include gathering requirements, designing solutions, and translating complex needs into actionable documentation using AI tools. Must communicate fluently in Polish and English.

js) to join our team and contribute to its continued growth. We are expecting to grow our team and begin new projects in the next 1‑2 months. Location and contract type Warsaw (Poland) – fully remote work (B2B contract) Vilnius (Lithuania) – hybrid/remote (B2B or employment contract) Responsibilities Build modern, responsive, and accessible UI components using React / Next.

Knowledge of English and French at least B2 level ( essential for client communication purposes) At least 2 years of experience in Accounts Receivable as a main process Experience in F&A OTC or master data area will be an asset Very good knowledge of excel (Preparing reports, VLOOKUP, PIVOTS, INDIRECT) Excellent verbal and written communication skills to interact with clients and internal teams pr

We develop tools to connect our customers' software, and we are looking for the best employees to develop our ideas further. We need you to help us continue growing! AsaMarketing andBusiness Development Representative, youwillberesponsible foridentifyingand developing new opportunities for Ara’s XPLM business unit sales teams while supporting lead data management and marketingoperations.

We are looking for a motivated and detail-oriented Junior Data Analyst to join an international team and support data analysis, reporting, process automation, and business decision-making. This role is a great opportunity for a recent graduate or someone with up to 1–2 years of professional experience who would like to develop their career in Data Analytics and Business Intelligence.

Implementation Analyst for Payments/Acceptance Solutions. Deliver end-to-end projects, understand technical/business requirements, and coordinate stakeholders. Requires experience in payments/fintech and basic understanding of IT systems/APIs.

Last date to apply: 24 września 2026 We are looking for a motivated ESG / Non Financial Controller to join our Sustainability organization within the Finance community. In this role, you will support ESG reporting and help ensure that our sustainability data is accurate, reliable, and compliant with reporting requirements.

Lead Data Engineer needed with 6+ years experience in Data Engineering. Requires proficiency in SQL, Python, AWS (Lambda, Airflow, Redshift), and Snowflake. Responsible for designing, implementing, and maintaining data structures and pipelines.

This is a role that TechTree is recruiting for on behalf of one of our clients. TechTree is an AI-driven recruitment platform working with high-growth companies. When you apply, our AI Agent matches you not just to this role, but to other relevant opportunities across our network, so one application can unlock multiple roles.

Data Warehouse Engineer to build a modern enterprise data platform using Snowflake, dbt, and other tools. Focus on data pipelines, quality, automation, and collaboration with stakeholders.

Experienced Scala Spark Engineer to build scalable data pipelines for a global financial-crime prevention platform. Responsibilities include developing and maintaining data pipelines, analyzing large datasets, and collaborating with distributed teams.

Skilled Ukrainian Local National Linguist needed for translation and interpretation services. Requires 3+ years experience, Secret clearance, and high proficiency in Ukrainian, English, and Polish. Must be fit for active duty.

This is Energizer Holdings, Inc. Energizer Holdings responsibly creates products to make lives easier and more enjoyable. To do this, we lean into our culture as an organization – we win together, while serving each other, with a willingness to act boldly, all while doing right.

Java Developer role requiring strong Java Core knowledge and experience with Microservices and the Spring ecosystem. Must have experience with Message Brokers and advanced SQL/NoSQL databases. Conversational English (B2+) and German (B1+) are required.

Mainframe Developer role supporting system development and maintenance using IBM z/OS. Requires knowledge of COBOL and familiarity with mainframe concepts. Candidates will learn Assembler and utilize debugging and performance monitoring tools.

Junior Portfolio Analyst Do you want to build strong analytical skills in an international investment environment? Are you curious by nature, motivated by understanding data, and eager to learn how portfolio valuations are prepared and used in business decisions? Do you want to contribute to better investment decisions by turning data into clear analysis and practical insights?