Senior Fullstack Developer (React + Java)
New
J
j-labsTelecommunications software
Workplace type: remote; Locations: Kraków, Zabłocie 43B, Kraków, Country code: PLContractSenior
Salary145 - 165 PLN per hour
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Job Details
- Languages
- English B2, Polish B2
- Experience
- Minimum 5 years of commercial experience in web application development.
- Required Skills
- JavaJavascriptSpring BootTypeScriptREST APIReact
Requirements
- Have at least 5 years of commercial experience developing web applications.
- Have very good knowledge of React, TypeScript, and JavaScript.
- Have backend development experience with Java and Spring Boot.
- Have practical experience designing and integrating REST APIs.
- Have experience with modern frontend application architecture.
- Be able to independently manage tasks from analysis through implementation.
- Know Agile/Scrum methodologies.
- Have English proficiency of at least B2.
- English B2 and Polish B2 are listed in the posting's language requirements.
Responsibilities
- Develop and modernize the Control Center platform across frontend and backend.
- Implement new features using React, TypeScript, Java, and Spring Boot.
- Design and develop REST APIs and integrate them with existing services.
- Help define application architecture and make technical decisions.
- Collaborate with Product Owners, UX/UI Designers, and other product teams.
- Analyze business requirements and propose technical solutions independently.
- Conduct code reviews and maintain code quality.
- Help build AI-supported features and use modern work-automation tools.
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