react English-speaking jobs in Tarnowskie Góry

Senior Mechanical Engineer to lead end-to-end design for heavy industry products. Requires 5-6 years of experience, a degree in Mechanical Engineering, and strong 3D/2D CAD skills (Solid Edge preferred). Must have a solid understanding of manufacturing processes and materials.

Design and build scalable web applications using Python Dash or Shiny. Create robust interfaces between the UI and backend Python execution engines. Implement enterprise features including user authentication, role-based access control, and audit trails.

Build AI-powered product experiences and integrate AI tools into your development workflow. Work across diverse stacks with end-to-end ownership, choosing the right technologies for each challenge. Take real ownership from idea to production, creating systems used by millions. Simplify software architectures, pipelines, and codebases.

Senior Advanced Cloud Software Engineer - SRE will support engineering teams in all stages of product development, ensuring reliability, availability, and performance. Responsibilities include triaging and fixing production system issues, automating monitoring and scaling, and collaborating with teams on architecture and implementation. Requires 7+ years of software engineering experience and 5+ years managing large-scale SaaS platforms. Experience with cloud services, microservices architectures, and log analysis frameworks is essential.

Blockchain Developer sought for a growing team building next-generation global solutions. Requires strong Rust skills, 1+ year blockchain software experience, Solana knowledge, and advanced English. Will audit code, secure products, and collaborate with clients.

Project Manager will lead projects focused on product availability and competitive pricing for Allegro Business' B2B customers. Responsibilities include benchmarking, monitoring selection relevance, designing price monitoring strategies, and collaborating with cross-functional teams.

iOS Developer will architect, develop, and maintain native iOS applications. Requires 3+ years of experience with mobile development in iOS, production experience with Swift (RAC/RxSwift), and knowledge of mobile architectures and design patterns.

Operations Manager for marketplace and retail media activities. Responsible for managing and executing retail media campaigns for partners, supporting partners with inquiries, and ensuring smooth process execution. Requires strong German and English language skills, experience in e-commerce or retail media, and the ability to work independently and collaboratively.

Provides strategic and operational support to either the CEO or COO. Manages executive calendars, translates strategy into action plans, and leads cross-functional projects. Requires fluency in English and Spanish.

Senior Rust Blockchain Developer to lead low-level node development for a gaming-centric platform. Responsibilities include implementing blockchain protocols, optimizing performance, and ensuring sub-second transaction finality. Requires 5+ years of Rust experience and strong understanding of distributed systems.

Senior Python Engineer to build and maintain AI and automation applications. Develop data pipelines, train machine learning models, and implement testing and version control best practices. Requires strong Python skills, experience with AI/ML frameworks, and understanding of data manipulation and ML algorithms.

Manages bank account administration and end-to-end payments for clients in EMEA and APAC. Leads an international team responsible for vendor management, invoice processing, payment processing, bank account management, and process improvements. Collaborates with internal and external stakeholders to ensure service delivery.

Software engineer intern will contribute to priority projects, collaborate with skilled teammates, and build foundations for growth. Responsibilities include building systems used by millions, integrating AI tools into development workflows, and simplifying complex systems. Must have reasoning ability, drive, team spirit, and proficiency in English.

Junior C Developers will design, implement, and debug new features in the 5G area (Baseband L1-L2). You will work in a Scrum team, create documentation, and collaborate with stakeholders. Experience with C programming, Linux CLI, Git, and CI/CD tools is required. Experience with embedded systems and/or Radio Access Network is a plus.

Senior/Lead Software Engineer with 5+ years of experience in Java development and DevOps practices. Responsibilities include coding, testing, and operating Java-based services, resolving complex bugs, and maintaining existing infrastructure. Requires strong knowledge of Terraform, Ansible, and AWS Cloud. Must have at least 4 hours of overlap with EST for collaboration.

Java Software Engineer will work on migrating legacy applications to a cloud-ready, event-based architecture. Responsibilities include designing, developing, and delivering IT solutions that meet functional and non-functional requirements.

Senior Business Analyst to work with clients and technical resources to identify business problems and develop analytical solutions. Plan, design, and document business processes and system modifications. Gather and analyze business requirements, create test cases, and support QA, UAT, and release phases. Minimum 5 years of experience as a Business Analyst with a degree in Business, IT, or a related field. Previous experience in the health insurance industry is required.

Solarix, a leading Czech cabling brand, seeks experienced Sales Representatives to expand its presence in Poland. Responsibilities include acquiring new clients, building relationships with distributors, promoting products, and achieving sales targets. Successful candidates will have B2B sales experience in electrical or electrotechnical products and a proven track record of success.

Senior Frontend Engineer will define technical architecture and engineering standards for landing pages, checkout experiences, and funnel steps built with React and TypeScript. This role involves cross-functional coordination, system evolution, and full-stack contribution across a broad technical landscape.

Senior Python Engineer to join a cross-functional team developing applications improving and automating customer business processes. Responsibilities include designing, developing, and maintaining Python applications, ensuring code quality, and collaborating with cross-functional teams. Requires 5+ years of experience, proficiency in FastAPI, Generative AI and LLMs, and experience with Azure Cloud services.