Senior Full-Stack Engineer: Java/React (Remote)

KCS IT; Portugal; Remote; EUR 60,000 - 90,000; Full time

Benefits offered by this job

Free training programs

International projects in Benelux

Hybrid/Remote/Onsite project options

Well-being initiatives remotely

Job summary

KCS IT in Lisbon seeks a Senior Full Stack Developer (Java/React) for remote work in Portugal. You’ll design and build robust REST APIs, craft microservices, and own CI/CD pipelines in a cloud environment (AWS or Azure).

Strong TDD, DDD, and Agile practices are essential, along with solid Git collaboration and clean code discipline. With 5+ years of hands-on development, you’ll work across modern tech stacks, contribute to architecture decisions, and deliver high-quality software for diverse

Qualifications

• 5+ years as a Full Stack Developer with Java and React.
• Strong Java 17/21, Spring Framework, Spring Boot experience.
• Proven REST API design and microservices development.
• Cloud experience (AWS or Azure) is mandatory.
• CI/CD, TDD, and modern design principles are required.
• Solid knowledge of DDD, Agile/Scrum, and Git workflows.
• Portuguese language strongly preferred in daily work.

Skills

Java 17/21

Spring Framework

Spring Boot

React.js

REST APIs

Microservices

Cloud platforms (AWS/Azure)

CI/CD pipelines

Test-Driven Development (TDD)

Domain-Driven Design (DDD)

Scrum/Agile

Git

SOLID & design patterns

Portuguese language

Tools

Kubernetes

Docker

Kafka

RabbitMQ

Terraform

JUnit

Mockito

Cypress

Playwright

Grafana

Prometheus

ELK

Job description

KCS IT in Lisbon seeks a Senior Full Stack Developer (Java/React) for remote work in Portugal. You’ll design and build robust REST APIs, craft microservices, and own CI/CD pipelines in a cloud environment (AWS or Azure).

Strong TDD, DDD, and Agile practices are essential, along with solid Git collaboration and clean code discipline. With 5+ years of hands-on development, you’ll work across modern tech stacks, contribute to architecture decisions, and deliver high-quality software for diverse