Java Developer with Kotlin

Job Description – Backend Software Engineer (Java / Kotlin)

We are looking for a Backend Software Engineer to join a dynamic and collaborative technology team, contributing to the migration of an Insurance Software platform to a microservices-based architecture.

You will work in a modern backend environment, designing, developing, and maintaining scalable services using Java and Kotlin, following clean architecture and best engineering practices in an agile setup.

Location

Lisbon – Moscavide

Work Model

Hybrid (2 days per week in the office)

Key Responsibilities

• Design, develop, and maintain backend services using Java and Kotlin
• Contribute to the migration from monolithic systems to microservices architecture
• Design and implement RESTful APIs for internal and external consumption
• Apply SOLID principles, clean code, and clean architecture standards
• Review code and approve Pull Requests, ensuring high code quality
• Diagnose, debug, and resolve production issues and defects
• Collaborate with cross-functional teams, including architects and other developers
• Create and maintain technical documentation for developed services
• Ensure system functionality, scalability, and maintainability
• Actively participate in agile ceremonies and continuous improvement initiatives

Required Profile

• 5–8 years of professional experience in backend software development
• Strong experience with Java (mandatory)
• Hands-on experience with Kotlin (mandatory)
• Solid understanding of microservices architecture
• Experience designing and consuming REST APIs
• Strong background in backend and desktop-oriented development
• Experience with code reviews and collaborative development workflows
• Strong analytical, debugging, and problem-solving skills
• Proactive mindset and strong sense of ownership
• Comfortable working in Agile/Scrum environments
• Strong communication skills and ability to work in international teams

Technical Skills

Must Have

• Java
• Kotlin
• RESTful APIs
• Microservices architecture
• Clean Architecture & SOLID principles

Nice to Have

• C++ (desktop-oriented development)
• Angular 8+
• Vert.X
• Azure Cloud
• Experience with cloud-native or distributed systems

Languages

• English – B2 minimum (mandatory)