Freelance Java Back-end Developer

Your primary responsibilities include building complex systems, implementing scalable solutions, ensuring seamless integration of features and functionalities, and being involved in building a code base that is enjoyable to work in.

Responsibilities and deliverables

• System Architecture and Development: design, develop, maintain the back-end architecture of our platform, delivering high performance, maintainable, scalable, and reliable code.
• Database Management: optimize database structures and queries for efficient data storage and retrieval. Work with large datasets and implement performant data storage solutions.
• Performance and Integration: implement performance optimization techniques to ensure optimal platform speed and responsiveness. Collaborate with Front-end Developers to integrate user-facing elements with server-side logic.
• Cross-Functional Collaboration: collaborate with colleagues across our Technology and Product organisations to exchange knowledge, and share interpretation of requirements.
• Security and Compliance: implement and maintain security measures to protect against data breaches and ensure compliance with industry regulations. Stay informed about the latest security threats and technologies to proactively address potential vulnerabilities.
• Code Quality and Testing: write clean, well-documented, and efficient code, and participate in code reviews to maintain code quality standards. Collaborate with QA Engineers to conduct thorough testing of back-end components.
• Documentation: create and maintain comprehensive documentation for back-end code, ensuring knowledge transfer and ease of collaboration.

• Solid professional experience as a Java software engineer with a focus on high performance web applications.
• Proficiency in Java, SQL and Spring is required.
• Familiar working according to Agile/Lean principles, and Git and GitHub workflows.
• Solid analytical and problem-solving abilities.
• Solid communication skills in English.
• Capable and motivated to maintain comprehensive documentation.
• Ability to work independently as well as collaboratively with cross-functional teams.
• Willing to work from our offices in Wroclaw two days per week.

Benefits

• Join a fast-moving and growing international business;
• have significant impact, with ample room for initiative;
• be part of an experienced team that blends hard work with fun;
• balance life and work with flexible hours and regular remote work;
• an open-ended, full-time B2B contract with a competitive day rate in line with your seniority.