全栈 Java + React 开发者（Java/Spring Boot/React + AI 工具链）- 葡萄牙

ABOUT THE OPPORTUNITY
We are looking for two Full Stack Engineers — one Senior and one Mid-level — to help build, evolve and operate scalable digital products that deliver real value to customers and internal teams. You will work across the full stack, contributing throughout the software development lifecycle: from API design and distributed backend services to modern, accessible web interfaces. This role combines strong hands-on engineering across the Java and JavaScript ecosystems with the practical use of approved AI-assisted development tools as part of a modern engineering workflow. You will own features end to end, in a team where technical decisions are discussed rather than dictated.
PROJECT & CONTEXT
The client is a well-established player in the retail sector, operating large-scale, high-traffic digital platforms where performance, reliability and scale are daily engineering concerns. The ecosystem is built on distributed, containerised services with a modern React/Next.js frontend layer and a mature CI/CD and observability culture. AI tooling is an established part of how the team works — not an experiment — and engineers are expected to use it critically, validating and improving what it produces. You will join a product-oriented team with a stable roadmap and a platform used by a large customer base.
WHAT WE'RE LOOKING FOR (Required)
AI-assisted engineering

• Practical experience using AI tooling to support development activities: code generation and refactoring, test creation and automation, documentation generation, code analysis and review, and technical investigation

• Ability to review, validate and improve AI-generated output to ensure quality, security and maintainability

Backend

• Strong commercial experience developing software with Java (recent versions — Java 17 LTS or above) and Spring Boot 3.x

• Experience building and operating distributed systems, RESTful APIs and microservices

• MySQL 8 — schema design, query optimisation and performance tuning

• AWS — building, deploying and maintaining cloud-native applications

Frontend

• Strong commercial experience with JavaScript and TypeScript

• Experience building modern web applications with React 18

• Strong understanding of web performance, accessibility and responsive design

Engineering practices

• Strong understanding of software engineering best practices, testing, code quality and maintainable code

• Strong understanding of CI/CD practices and modern software delivery approaches

• Experience with containerisation technologies

• Understanding of infrastructure, monitoring and observability practices

• Strong problem-solving skills and the ability to contribute effectively in a collaborative, cross-functional team

• Fluent English, spoken and written (working language of the project)

NICE TO HAVE (Preferred)

• Next.js in production environments

• Kubernetes and container orchestration platforms

• Apache Kafka or other event-streaming technologies

• Modern observability and monitoring tooling

• Experience in large-scale digital, retail or eCommerce environments

• AWS certifications

• Portuguese language skills

Compensation: €2550 – €3350/month net, depending on experience and seniority level.
Why HumanIT people stay (4.4 Glassdoor, 89% recommend)

• 15th month salary

• Health insurance covering your family

• Birthday off

• Mobility program for digital nomads

• Real work-life balance

Originally posted on Himalayas