Backend Engineer (Spring Boot)

TL;DR

Backend Engineer (Spring Boot): Enhance payment software solutions by integrating PSPs and developing the payment domain of a market-leading B2B fitness SaaS platform with an accent on resilient microservices, cloud-native scalability, and high-quality components. Focus on building maintainable backend systems using JVM technologies, optimizing for fast deployment cycles, and ensuring reliability in agile environments.

Location: Fully remote or hybrid with on-site collaboration at the office in Warsaw

Salary: PLN 14,000–17,000 gross/month (UoP) or PLN 100–120 net per hour + VAT (B2B)

Company

Headquartered in Hamburg, hirify.global is a leading provider of software solutions for the fitness industry, including membership management ERP, gym software for chains, and financial services for over 10,000 gyms across 55 countries.

What you will do

• Integrate payment service providers (PSP) into payment software solutions as part of a cross-functional team
• Develop and enhance the payment domain of the B2B fitness SaaS platform using JVM technologies like Spring Boot
• Create high-quality, resilient, and maintainable microservices with integration into the SaaS platform
• Contribute ideas in flat hierarchies within an agile, autonomous environment

Requirements

• At least 3 years of professional experience developing cloud-based software with JVM technologies, Spring Boot, and Hibernate
• Experience working on scalable, cloud-native platforms
• Focus on high-quality, reliable components with fast deployment cycles and continuous self-improvement
• Up to date with programming trends, thrive in collaborative environments, and communicate confidently in English
• Apply proven design patterns pragmatically for maintainable and efficient backend systems

Culture & Benefits

• Private medical care and sports card for health and well-being
• Access to Udemy Business for skill development
• Flexible work model: fully remote or hybrid in Warsaw office
• Employment options: UoP or B2B contract
• Flexible working hours to fit your lifestyle
• International, diverse team with company events and team-building