Backend Developer (Java, Spring Boot)

Location: Cracow

Mode: Hybrid (6 days per month at the office - flexible)

Contract: B2B

Rate: 160-170 PLN/h

Introduction & Summary

We are seeking a skilled Backend Developer who possesses a deep knowledge of data modeling and architecture. The ideal candidate should have extensive experience in API development using core Java and Spring Boot, with a strong grasp of security principles and Agile methodologies. The role requires an analytical mindset, capable of designing resilient and scalable solutions while working cross-functionally to foster collaboration and innovation.

Main Responsibilities

• Ensure proper definition and architecture of non-functional requirements in design.

• Develop and grow skills in designing cloud-based, secure, and adaptable solutions.

• Build scalable, highly reliable product features through effective software design and implementation.

• Apply problem-solving and analytical skills to diverse challenges.

• Interact with cross-functional teams for scalable solution production.

• Estimate engineering efforts and develop realistic schedules.

• Identify and resolve complex production issues efficiently.

• Conduct comprehensive design and code reviews and perform unit testing.

• Utilize source control and bug tracking systems responsibly.

Key Requirements

• Hands-on experience in API and Microservices development using core Java and/or Spring Boot.

• Proficient in application development using Java/J2EE and related technologies, including Spring Framework and Hibernate JPA.

• Experience in developing reusable APIs and consuming web services (REST), as well as processing data formats like XML/JSON.

• Expert knowledge of Agile/Scrum/Kanban development methodologies and experience with databases (Oracle, Postgre, MongoDB).

• Extensive knowledge of CI/CD deployment pipelines, including Jenkins, Docker, shell scripting, and GIT with Unix proficiency.

Nice to Have

• Experience in JavaScript frameworks such as ReactJs, Node JS, Angular, and jQuery.

• Familiarity with JavaScript build tools and dependency management.

• Experience in creating responsive designs using frameworks like Bootstrap.

• Knowledge of GCP, GKE, AWS is an advantage.

• Experience or knowledge in system architecture and solution design.

• Hands-on experience in Python, Machine Learning, and Data Science.