[Hiring] Fullstack Developer @Commerzbank AG

Role Description

Join our FlexHub team as a Fullstack Developer! As a Specialist Fullstack Developer at FlexHub, you drive the technical quality and architecture of our integrated systems. Your responsibilities include:

• Design and develop critical full-stack modules capable of handling high transaction volumes.
• Define interface contracts and ensure data consistency across distributed systems.
• Solve complex technical challenges, including concurrency and memory management issues.
• Define testing strategies and ensure adherence to security and development best practices.
• Support the team during technical planning and help resolve technical blockers.
• Analyse production metrics to identify bottlenecks and support capacity planning.
• Document key architectural decisions using Architectural Decision Records (ADRs).
• Mentor and support developers, helping them grow their technical skills and advance their careers.
• Advise Product Management on the technical feasibility, complexity, and risks of new features.
• Drive continuous improvement by introducing tools, frameworks, and practices that increase developer productivity and software quality.

Qualifications

• Hands-on experience with Java and React.
• Experience with RESTful Web Services.
• Good knowledge of SQL, HTML5, and Git.
• Experience with unit testing.
• Good understanding of object-oriented design principles.
• Experience working with Agile methodologies.
• Fluency in English and Polish, both at a minimum B2 level.
• Strong analytical and problem-solving skills, with attention to detail.
• Customer-oriented mindset with a proactive approach and a strong sense of ownership.
• Ability to deliver high-quality results on time.
• Excellent communication and collaboration skills.
• Flexibility and ability to adapt to a fast-changing environment.
• A strong team player, comfortable working in international and cross-functional teams.

Benefits

• Development Plans for employees.
• Life insurance.
• Flexible working hours.
• Integration events.
• Much more.