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BBAgency

Introducing BBagency - Your Trusted IT Talent Acquisition Partner!

Senior Backend Developer, Java/Spring Boot

Backend EngineerSoftware EngineerContractRemoteSeniorTeam 11-50H1B No SponsorCompany SiteLinkedIn

Location

Europe

Posted

109 days ago

Salary

€3K - €4K / month

Seniority

Senior

Job Description

Senior Backend Developer, Java/Spring Boot

BBAgency

• Build high-scale microservices that power real-time retail POS transactions. • Implement complex Domain-Driven Design (DDD) patterns. • Write clean, testable, and efficient Java 21 code using Spring Boot 3. • Design and optimize complex SQL queries for Amazon Aurora PostgreSQL. • Design robust logic to synchronize data from local SQLite mobile databases to the cloud. • Build asynchronous workflows using Kafka. • Implement logic for split payments, QR code integrations, and informal credit management.

Job Requirements

  • 5+ years of experience in backend engineering.
  • Expert-level Java 21 (LTS), Spring Boot 3.2+, and PostgreSQL.
  • Experience with Event-Driven Architecture and DDD is required.
  • Fluent English is mandatory.
  • Spanish is a significant advantage for understanding the business requirements of the LATAM retail market.

Benefits

  • Flexibility - We have standard 40-hour work weeks.
  • Remote work & Tooling - We operate as a fully remote team.
  • Culture - We value collaboration, openness, a willingness to learn, lead, and a curious nature.
  • Autonomy and responsibility – You’ll be trusted to get things done efficiently and effectively.

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