As a Senior Fullstack Developer, you will design, develop and maintain high-performance applications using modern technologies like Spring Boot and Angular, ensuring they meet the highest standards of functionality, security and performance. You will work on both traditional full-stack development and a unique part of our platform based on custom XML-driven metadata languages (DSLs) interpreted by Java components.
 

Job details:

• Role:Senior Fullstack Developer (Java)
• Full-time
• Hybrid in Wroclaw
• Start date: 15/01/2026
• End date: 31/07/2026

Scope:

• Design, develop, and maintain backend services using Spring Boot
• Build and enhance front-end features using Angular, ensuring usability and performance
• Work with and extend proprietary XML-based DSLs interpreted by Java runtime components
• Develop new modules using standard Spring Boot practices, reducing dependency on legacy DSLs
• Integrate and optimize data access using PostgreSQL and MongoDB
• Participate actively in an agile team, including sprint planning, daily stand-ups and code reviews
• Support architectural discussions and technical decision making
• Troubleshoot, debug and improve existing features and custom logic.
• Support the transition from monolithic frontend to a micro frontends approach
• Support the transition from PostgreSQL to MongoDB

Skills:

• 7+ years of experience
• Strong experience with Java and Spring Boot (REST APIs, JPA/Hibernate, Security, transactions)
• Solid experience with Angular (components, services, RxJS, state management)
• Experience with PostgreSQL and MongoDB, including schema design and query optimization
• Confidence working with XML, parsers, metadata-driven logic, or custom DSLs
• Experience with enterprise-grade applications and complex business logic
• Understanding software architecture, design patterns, and clean coding principles
• Familiarity with GIT, CI/CD, and agile methodologies
• Strong problem-solving skills, attention to detail, and proactive mindset

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