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11.08.2026 | Staż, Pełny etat | Wysokie Mazowieckie | InnowiseWhat we expect Strong theoretical knowledge of JavaScript fundamentals. Proficiency in working with HTML/CSS. Understanding of Object-Oriented Programming (OOP) principles and Web development basics. Knowledge of data security fundamentals in networks and Web development. Basic understanding of Nod

11.08.2026 | Staż, Pełny etat | Wysokie Mazowieckie | AndersenAndersen is an international IT company and one of the leaders in outsourcing software development. We create digital products for clients worldwide and know that successful projects start with a deep understanding of business goals, client objectives, and user needs. A traineeship is more than just

11.08.2026 | Staż, Pełny etat | Wysokie Mazowieckie | InnowiseLocation Warsaw What we expect - basic knowledge of JS and React - knowledge of the basics of one of the state managers (redux, zustand, mobX) - React pet project on git - English and German level В1 - TS knowledge will be a plus Innowise Group is an international IT company founded in 2007. We ha