Java Software Engineer

Senior Java Software Engineer

Location: Lisbon, Hybrid

Contract: 12-month freelance contract, 40h/week

Start date: January

Citizenship: EU citizen

Description of Responsibilities

• Develop, maintain, and operate backend software applications with a strong focus on Java across multiple versions (including legacy and modern)
• Design, implement, and optimise RESTful APIs, microservices, and multi-tier backend architectures
• Analyse business, functional, and technical requirements and translate them into scalable backend designs and technical solutions
• Contribute to integration work including system components, cloud-based environments, and custom-built backend services
• Perform code reviews, debugging, performance optimisation, and participate in unit, integration, and acceptance testing activities
• Create and maintain technical doc...