FullStack Engineer

At KUBO, we’re looking for experienced Fullstack Developers to support one of our clients in the financial sector. You'll join a long-term architectural transformation, working with both backend and frontend technologies in a complex, high-performance environment.

As a consultant, you’ll be part of an international Agile team, working fully remote from Poland. The team is responsible for critical platform components with high visibility across the organization.

Key responsibilities

• Design, develop, and maintain fullstack applications using Java, Spring Boot, TypeScript, Node.js, and React

• Refactor and modernize parts of the existing platform, gradually migrating functionality from monolithic systems to scalable services

• Implement secure and well-structured APIs and frontend components

• Collaborate with backend and frontend specialists to ensure end-to-end quality and performance

• Ensure high standards in code quality, testing, and documentation

• Contribute to architectural decisions and best practices within the team

Ideal candidate profile

• Several years of experience in software development, with strong backend and frontend skills

• Proficient in Java, Spring Boot, JavaScript/TypeScript, and React

• Comfortable working with Node.js on the backend when needed

• Solid understanding of fullstack development workflows and patterns

• Familiar with SSO concepts and authentication flows (nice to have)

• Experience working in distributed, Agile teams and modern DevOps environments

• Strong communication skills in Polish and English

Conditions

• Location: Remote from Poland

• Contract type: B2B

• Duration: Until end of 2026 (possible extension)

• Salary: 140-210 PLN/h; Negotiable, depending on experience

• Benefits: Private medical care, life insurance, trainings, Multisport card

Recruitment steps

• Call with a KUBO recruiter

• Technical interview with the client

• Offer & onboarding