Backend Java & Kotlin Engineer - Microservices & REST

Sysmatch; Lisboa; On-site; EUR 30,000 - 40,000; Full time

Job summary

Sysmatch is seeking a backend-focused professional in Lisbon to design, develop, and maintain services using Java and Kotlin. The role emphasizes building RESTful APIs and microservice-based architectures, with code reviews and documentation a key part of the responsibilities.

Experience of 4–5 years and strong English (B2) are required, along with a commitment to SOLID principles and clean architecture.

Qualifications

• 4–5 years of experience in backend software development.
• Design, develop and maintain backend services with Java/Kotlin.
• Build and consume RESTful APIs and design microservices.
• Review code via pull requests and ensure code quality with SOLID and clean architecture.
• Diagnose issues, debug production problems and resolve defects.
• Create and maintain technical documentation for services.
• Strong English language skills (B2).

Responsibilities

• Design, develop and maintain backend services using Java, Kotlin and related frameworks.
• Create and maintain system functionality and RESTful APIs.
• Review code for Pull Request approval and ensure quality.
• Design solutions based on microservices and clean architecture.
• Diagnose issues, debug production problems and resolve defects.
• Create and maintain technical documentation for services.

Skills

Backend development

Java

Kotlin

REST APIs

Microservices

Code review

SOLID principles

Job description

Sysmatch is seeking a backend-focused professional in Lisbon to design, develop, and maintain services using Java and Kotlin. The role emphasizes building RESTful APIs and microservice-based architectures, with code reviews and documentation a key part of the responsibilities.

Experience of 4–5 years and strong English (B2) are required, along with a commitment to SOLID principles and clean architecture.