Senior Java Developer

Senior Java Developer

Department: HAPI

Employment Type: Full Time

Location: European Union

Hapi (Data Travel, LLC) is a company that specializes in data integration for hospitality companies and their technology partners.

We are seeking a highly skilled and experienced Senior Java Developer with a strong focus on hands‑on technical expertise and a passion for building scalable, robust solutions. In this role, you will be responsible for developing high‑quality code, designing innovative architectures, implementing automated testing, and contributing to a seamless Dev Ops workflow.

• Develop and maintain high‑quality, scalable, and reusable applications and solutions
• Create and maintain robust automated test suites with a focus on functional coverage
• Conduct code reviews to ensure adherence to best practices and maintain high‑quality standards
• Work closely with cross‑functional teams, including product managers, architects, solution designers, and QA engineers
• Design and architect end‑to‑end solutions that meet functional and non‑functional requirements

• Java 21, with migration to 25 in progress
• Spring Boot 3.5, with migration plans to version 4 in Q1 2026
• Maven, Docker, AWS (ECS, Lambda, RDS)

• Bachelor’s degree or equivalent experience in Computer Science
• Excellent verbal and written communication skills
• 5+ years of experience as a Java Engineer (version 17 and newer)
• Familiarity with microservice architecture
• Web service / server‑side development using Spring Boot (Java or Kotlin)
• Exposure to Kotlin
• Strong SQL knowledge

• You are familiar with the Hospitality industry and hotel IT systems (PMS, CRS, etc.)
• AWS Experience (S3, SQS, ECS, Lambda, RDS)
• AI technologies resonate with you