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Open nowFirst seen 4 days ago

Backend AI Developer (Java/Quarkus) - Hybrid Leça da Palmeira (2 days/week office)

HumanIT Digital Consulting113 open roles

Where
Leça da Palmeira, Portugal
Work mode
Hybrid
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Your applicationOpen nowBackend AI Developer (Java/Quarkus) - Hybrid Leça da Palmeira (2 days/week office)HumanIT Digital Consulting · Leça da Palmeira, Portugal

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12.3% of postings close within 7 days. Measured by our own scanner across the market.

Share of postings closed within
  1. 2.1%1 day
  2. 4.5%3 days
  3. 12.3%7 days
  4. 19.3%14 days
  5. 35.6%30 days
  6. 57.8%60 days
This job: first seen 4 days ago

The posting

Backend AI Developer (Java/Quarkus) - Hybrid Leça da Palmeira (2 days/week office)

ABOUT THE OPPORTUNITY

Our client, a technology-driven company shaping the future of mobility across the Iberian market, is looking for a Mid-level Backend Developer to join their engineering team. This is a chance to work at the intersection of backend engineering and applied AI, using tools like GitLab Duo and Claude Code as part of your everyday workflow to build reliable, high-quality software faster.

PROJECT & CONTEXT

You will design, build, and maintain backend services and APIs using Java and Quarkus, while embracing an AI-first approach to how the team codes, tests, and reviews software. Day-to-day work includes solving backend tasks such as features, bug fixes, refactors, and integrations, writing automated unit and integration tests, participating in AI-assisted and peer code reviews, and troubleshooting CI/CD pipelines with the help of GitLab Duo. You'll collaborate closely with backend engineers, QA, and product to deliver dependable, well-tested software in a fast-moving, AI-enabled environment.

WHAT WE'RE LOOKING FOR (Required)

  • 4+ years of hands-on backend development experience
  • Experience with Java (Quarkus is a plus)
  • Practical experience using AI-assisted development tools such as GitHub Copilot, GitLab Duo, Claude Code, or similar as part of a daily engineering workflow
  • Experience designing and building APIs and Java-based microservices that run reliably at scale in production
  • Experience writing automated unit and integration tests for backend systems
  • Ability to understand the functional and business context of a feature before designing the technical solution
  • Curiosity and willingness to experiment with new AI tools and integrate them responsibly into day-to-day development practices
  • Comfortable working in a fast-moving environment where AI-assisted development practices are still evolving
  • Strong attention to detail, critical thinking, and problem-solving skills
  • B1 English (Intermediate) minimum, with good verbal and written communication skills
  • Collaborative, adaptable, and able to manage multiple priorities effectively

NICE TO HAVE (Preferred)

  • Experience with LLM-based integrations, Retrieval-Augmented Generation (RAG), or agent orchestration workflows
  • Familiarity with MCP (Model Context Protocol) or similar tool/context integrations that connect AI assistants to internal systems
  • Exposure to AI-native development practices beyond code completion, such as spec-driven development frameworks, custom prompt or skill libraries, and automation workflows
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