Lead Fullstack Developer (React, Java)

Reply specialises in designing and implementing solutions based on new communication channels and digital media. Structured as a network of highly specialised companies, Reply supports leading European industrial groups in sectors such as Telco & Media, Industry and Services, Banking and Insurance, and Public Administration, helping define and develop business models enabled by new paradigms such as AI, Cloud Computing, Digital Media, and the Internet of Things. Reply’s services include Consulting, System Integration, and Digital Services.

• At least 7 years of experience as a Frontend Developer or Fullstack Developer.
• Experience with object-oriented software development in Java.
• Knowledge of web development technologies including HTML, CSS, and TypeScript.
• Basic understanding of the React framework, Material UI, and concepts such as JSX/TSX, Function Components, Hooks, Custom Hooks, and State Management.
• Experience using AI-assisted development tools (e.g., GitHub Copilot, ChatGPT, Claude, Cursor) to improve productivity and code quality.
• Strong understanding of software architecture, design patterns, and scalable application design.
• Ability to identify risks, proactively address challenges, and support the team in achieving project goals.
• Strong stakeholder management and communication skills including explaining technical concepts to non-technical audiences.
• Ability to mentor, coach, and support developers at different experience levels.
• Good communication skills in English and Polish.
• Communication skills in German are a plus.
• Successful completion of higher education as a qualified IT specialist or degree in computer science.

• Design, develop, and maintain applications using Java, TypeScript, and modern web technologies.
• Build responsive and user-friendly interfaces using React and Material UI.
• Implement and maintain frontend components using JSX/TSX, Function Components, Hooks, and Custom Hooks.
• Develop and integrate backend services following object-oriented design principles.
• Collaborate with team members to design technical solutions and deliver new product features.
• Write clean, maintainable, and well-tested code to ensure high quality and reliability.
• Participate in code reviews and improve development standards and best practices.
• Troubleshoot, debug, and optimize application performance across the full technology stack.
• Take ownership of the product and solutions from implementation to production support.
• Proactively contribute ideas and improvements to create innovative solutions.
• Work in an agile environment applying Agile practices.
• Meet with team in Katowice office at least once a month for planning, collaboration, and progress discussion.