Fullstack Developer (Java+React)

Summary:
The Full-stack Developer role focuses on developing and maintaining applications across both backend and frontend, ensuring a balanced skill set in both areas to accommodate market demands.

Work model: Hybrid (6 times per month work from office – Cracow)
Business trips: n/a
Start: ASAP / one month notice period
Assignment type: B2B
Budget: 150–170 zł/h

Main Responsibilities

• Knowledge of Data modelling and Data Architecture concepts, security concepts, Architecture design, Business Functional Domains.
• Awareness of Infrastructure Design, Integration concepts, techniques, and patterns.
• Ensuring non-functional requirements (NFRs) are architected into the design, including API governance for various types of APIs.
• Developing skills for cloud design, creating resilient and flexible solutions.
• Building scalable and reliable product features through design, implementation, and maintenance of applications.
• Applying problem-solving and analytical skills to a variety of issues.
• Collaborating with cross-functional teams for scalable solutions.
• Estimating engineering efforts and creating realistic schedules.
• Identifying and resolving complex production issues.
• Rapidly fixing bugs and solving problems.
• Conducting design and code reviews, performing unit-testing for robustness and reliability.
• Utilizing source control and bug tracking systems effectively.

Key Requirements

• Hands-on experience in developing APIs and Microservices using core Java and/or Spring Boot; understanding of code security principles.
• Experience with application development in Java/J2EE, including Spring Framework and Hibernate JPA.
• Experience in developing reusable APIs and working with web services (REST), processing data (XML/JSON).
• Expertise in Agile/Scrum/Kanban methodologies, with experience in working with Databases (RDBMS) – Oracle, PostgreSQL, MongoDB.
• Expertise with CI/CD pipelines, Jenkins, Docker, shell scripting, and GIT; knowledge of Unix.
• Frontend experience with React.js, JavaScript, and TypeScript.

Nice to Have

• Experience in JavaScript frameworks such as React.js, Node.js, Angular, and jQuery.
• Familiarity with JavaScript build tools and dependency management.
• Experience in creating responsive web designs (Bootstrap, mobile, etc.).
• Experience with cloud platforms such as GCP, GKE, AWS is advantageous.
• Knowledge in system architecture and solution design.
• Experience with Python, Machine Learning, and Data Science.