5,143 junior react frontend developer jobs in Polska.

... experience in building and maintaining complex, high-scalability systems. - Strong technical foundation: Proficiency in Java (primary) and Kotlin, with a focus on reactive programming. - Advanced database skills (nice to have): Hands-on experience and advanced knowledge of MongoDB. - Business-oriented mindset: Experience in ...

... analityka, PIM). Tak pracujemy, wewnątrz organizacji, masz wpływ na rozwiązania technologiczne, koncentrujesz się na rozwoju produktu Skład zespołu, backend developer, devOps, data scientist Twój zakres obowiązków, Zarządzanie Master Data w środowisku omnichannel — odpowiedzialność za poprawność, kompletność i unikalność ...

... Learn to manage diverse data formats and write efficient, maintainable code that passes professional peer reviews. Don’t miss the opportunity to become a Java Developer – apply today! The Learning Roadmap Duration: 4 Months | Format: Remote/Hybrid | Commitment: 12–14 Hours/Week Self-Paced Core: High-quality modules available ...

... business solutions, we are looking for an AI Architect. Key responsibilities Design and develop scalable, secure, and resilient AI solutions integrated with developer tooling Architect and implement GenAI assistants, RAG pipelines, MCP clients/servers, and agentic workflows Design AI components for IDE extensions, EMF-based ...

... wsparciem zespołów w developmencie, wdrożeniach i stabilizacji rozwiązań AI działających w procesach szkodowych Czego oczekujemy Min. 10 lat doświadczenia jako developer, architekt lub Tech Lead przy projektowaniu i wdrażaniu systemów IT, w tym min. 5 lat w projektowaniu i wdrażaniu architektury rozwiązań opartych o AI oraz ...

... companies - Conduct complex business analysis independently, define functional requirements, test developed solutions and support UATs - Work closely with software developers and IT architects on a daily basis - Support coordination of Agile projects and mentor junior team members - Be an active member of Agile team, taking ownership ...

... companies - Conduct complex business analysis independently, define functional requirements, test developed solutions and support UATs - Work closely with software developers and IT architects on a daily basis - Support coordination of Agile projects and mentor junior team members - Be an active member of Agile team, taking ownership ...

... troubleshoot problems promptly - Collaborate with cross-functional teams to define and implement data solutions that align with business goals - Mentor and guide junior engineers, fostering a collaborative learning environment - Stay up to date with the latest advancements in Azure technologies and best practices Our requirements ...

... needs into functional specifications, user stories, backlog items, and solution designs - collaborating with business stakeholders, project teams, architects, developers, and external partners to deliver effective solutions - promoting continuous improvement, best practices, and excellence in Requirements Engineering and delivery ...

... environmentsAddress production issues and improve system performance in cloud setupsKeep up to date with Python trends, cloud advancements, and evolving toolsMentor junior team members, perform code reviews, and uphold quality standards across the team Requirements Bachelor’s degree in Computer Science, Engineering, or a related ...

... environmentsAddress production issues and improve system performance in cloud setupsKeep up to date with Python trends, cloud advancements, and evolving toolsMentor junior team members, perform code reviews, and uphold quality standards across the team Requirements Bachelor’s degree in Computer Science, Engineering, or a related ...

... production environment. Stay up-to-date with the latest advancements in machine learning and AI, and apply them to improve existing systems. Mentor and guide junior engineers and data scientists in best practices for machine learning and data engineering. Contribute to the development of machine learning infrastructure, ...

... advanced analysis, structured root cause identification, and effective cross-functional collaboration. As Collections Specialist with Czech you will mentor junior team members, manage escalations, and drive improvements that reduce rework and prevent dispute-driven payment delays. Key Responsibilities: - Portfolio Ownership ...

... advanced analysis, structured root cause identification, and effective cross-functional collaboration. As Collections Specialist with French you will mentor junior team members, manage escalations, and drive improvements that reduce rework and prevent dispute-driven payment delays. Key Responsibilities: - Portfolio Ownership ...

... who don't work with data daily. Set KPIs and implement A/B tests to optimize player income throughout the game lifecycle. Organize your own work and support a junior - priorities, requirements, estimates, and leading 1–2 meetings per week; Play an active role in shaping the future of the game title by proactively sharing ...

... configuration reviews Produces high-quality, client-ready reports with clear risk prioritization Facilitates scoping discussions and stakeholder alignment Mentors junior testers and ensures delivery quality and consistency Your profile Recognized cybersecurity certifications (e.g. OSCP, OSWE or equivalent) and extensive hands-on ...

... controlling processes. - Actively contribute to system development by consulting, proposing improvements, and working with the latest SAP S/4HANA solutions. - Mentor junior consultants and share expertise within the team. Our requirements - Minimum 4 years of experience as a SAP FI and/or CO consultant. - Experience participating ...

... Matter Expert (SME) for the Document Management System (DMS) to support queries from cross-functional teams or during audits. - Provide guidance and support to junior team members regarding validation best practices and methodologies. - Stay updated on industry trends, regulatory changes, and advancements in validation technologies, ...

... support role — you’ll be part of the core product team, building highly-performant, low-latency systems used across the firm., , Are you a passionate Java developer who thrives on solving complex problems in low-latency, high-throughput trading systems? Join us and work on interesting financial system engineering problems. ...

... (Paxus, 3Cats, and others), triaging issues and coordinating fixes with development teams - Leadership & Stakeholder Management - Mentor and guide analysts and developers, setting expectations around priorities, quality standards, and professional development - Serve as the primary point of contact between Technology and Business ...