5,143 junior react frontend developer jobs in Polska.

... and fluent English Nice to Have - Kafka or event-driven architectures - Kubernetes and Docker - Infrastructure as Code - Experience building public APIs or developer platforms - Experience with AI coding assistants such as Claude Code, GitHub Copilot or Cursor Why Join Cognism You will join the founding engineering team ...

... organize our work Team size 1-10 This is how we work - you focus on a single project at a time - you focus on product development - agile Team members - backend developer - technical leader - devOps - data scientist - automated test programmer Your responsibilities - Design and implement data testing and quality assurance frameworks. ...

... testów zakres działań jest bardzo szeroki i obejmuje zarówno wymagania funkcjonalne, jak i niefunkcjonalne. Zespół testuje m.in. przypadki użycia po stronie frontendu, interfejs użytkownika (GUI), bezpieczeństwo, wydajność, integracje interfejsów oraz interoperacyjność z różnymi wersjami systemów operacyjnych i przeglądarek., ...

... Interfaces - defining and implementing tooling frameworks and APIs for data and AI product development, monitoring, and access control - co-designing and managing a developer platform for developing and deploying data pipelines using tools and frameworks such as dbt and Databricks Lakeflow - promoting the reuse of data services ...

... •Wsparcie zespołów w budowie produktów dataowych (best practices, wzorce, narzędzia)., •Projektowanie warstw abstrakcji i frameworków upraszczających pracę developerów., •Rozwój platformy zgodnie z podejściem developer-first (nie tylko klasyczne ETL)., , Nowoczesna architektura danych (Streaming), •Rozwój architektury opartej ...

... full-stack as we continue to push technology forward., , In this role, you will be developing GenAI and Vertex based AI development tools that are propelling developers productivity like never experienced before. You will develop server code as well as middleware code which implements functionalities that interact with Google's ...

... to Consulting Engagement teams to set-up, govern and deliver end to end engagement economics, quality and coordination. Responsibilities vary by seniority: junior levels focus on learning and supporting basic tasks, mid-levels handle more complex activities and lead meetings, and seniors oversee global operations, manage ...

... solutions to optimise performance. - Reporting defects in the defect tracking system and verifying fixes. - Engaging in continuous development through mentoring junior team members, learning from senior experts, and working under their guidance. Our requirements - At least 2 years of professional experience in an Analyst position ...

... audit-related activities. - Security certifications such as Security+, CISSP, AWS Cloud Practitioner, or similar are a plus. What Success Looks Like A successful Junior Security Engineer will: - Help implement and improve security tools and technologies. - Deliver accurate, useful, and actionable security reports and dashboards. ...

... minimum 5 lat doświadczenia na podobnym stanowisku, znajomość Angular w wersji 19 lub nowszej, doświadczenie w projektowaniu i rozwijaniu architektury mikrofrontendów, znajomość Module Federation, doświadczenie w wykorzystaniu Signals oraz komunikacji z wykorzystaniem Signals, znajomość JavaScript (ES6) oraz JSON, znajomość ...

Do naszego klienta z grupy kapitałowej PKO BP poszukujemy Senior Frontend Developera. Forma współpracy: B2B Opis stanowiska Na co dzień będziesz: Projektować, rozwijać i utrzymywać platformę eCommerce opartą o https://jobeax.com/link/tzGekrj9a8ToGEDv oraz https://jobeax.com/link/M5KiLG35LUUr5frb, TS Współpracować z Technical ...

... us and help the world’s leading organizations unlock the value of technology and build a more sustainable, more inclusive world., , Your role, As a SAP CPI Developer, you will work on integration projects connecting SAP systems with various external applications. You’ll develop and maintain integration flows, support troubleshooting ...

... Software/Platform Engineer, you will join the Release Engineering and Platform team and help build the tooling, pipelines, and environments that take software from a developer’s machine into production. This is a hands-on engineering role combining software development with DevOps and platform engineering. You will build internal ...

... Windows - Linux About the project About the squad: Join the ".Net Application Integration Services" squad, consisting of 1 Product Owner, 1 Scrum Master, and 10 developers. We manage several products on-premise, in Private and Public Cloud, mainly including: • Bespoke C# .Net Libraries delivered as NuGet • Security token services ...

... environments such as Databricks and Snowflake., Wear many hats during the life cycle of a solution including project manager, business analyst and solution developer. This will also include working with business stakeholders to understand their processes to ensure the solution meets the strategic needs of the business overall., ...

... reliability across integration pipelines. - AI Adoption – Explore and prototype applications of AI to improve observability, automate integrations, or assist developer workflows. - Operational maturity: SLIs/SLOs, on-call/runbooks, and blameless incident reviews that drive learning. - Stakeholder presence: clear written and ...

... them. What we need is that you are never stuck, and that you can explain to a customer what was changed on their account and why, in their language, without a developer in the room. 3. The customer relationship, including the hard parts - Be the client's single point of accountability through launch, from their marketing lead ...

... interesująco, ale dopiero rozwijasz swoje kompetencje w obszarze Amazon i marketplace'ów - również zachęcamy do aplikowania. Chętnie poznamy kandydatów na poziomie Junior, którzy chcą rozwijać się w tym obszarze. Jednocześnie zapraszamy do udziału w rekrutacji osoby z ugruntowanym doświadczeniem, gotowe objąć rolę Mid lub Senior ...

... into core banking and trading platforms. - Drive research initiatives to advance NLP, deep learning, and time series analysis within the organization. - Mentor junior team members and share expertise to foster a culture of continuous innovation. - Present research findings at conferences and contribute to open-source AI/ML ...

... project teams and clients. - Support technical reviews, requirements workshops and multidisciplinary coordination meetings. - Provide guidance and mentoring to junior and intermediate engineers. - Contribute to the continued development of Hatch’s Systems Integration and Assurance capability in Poland and across Europe. You ...