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Mid-Level Java Backend Developer – AI

Olisipo — Portugal · Posted ~4 hours ago

Mid Hybrid €45000-€48000 gross/year

Skills

Java backend development Java APIs microservices AI-assisted development GitLab Duo Claude Code Quarkus REST APIs

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Summary ✨ AI‑Generated

A mid-level backend developer with around four years of experience is sought for a technology team building an innovative service. You will develop Java APIs and microservices, use modern backend frameworks, and incorporate AI-assisted tools into development, testing, debugging, and code reviews.

Highlights

Mid-level backend role with a hybrid schedule and a competitive gross annual salary range. The position combines Java and microservices engineering with practical AI-assisted development for coding, testing, debugging, and reviews.

Description

Ready to build a future where your potential knows no bounds? Olisipo is your launchpad to a world of endless opportunities in IT. Join us in creating a workplace that empowers you to conquer new heights in your professional journey! We’re looking for a MID Backend Developer with experience in Java, Quarkus, and AI-assisted development to join a technology team working on an innovative project. AI will be part of your day-to-day work, using tools such as GitLab Duo and Claude Code to help accelerate development, testing, debugging, and code reviews — without compromising code quality. 💼 Position: MID Backend Developer — Java / Quarkus / AI 🎯 Experience: 4 years 📍 Location: Leça da Palmeira, Porto 🏢 Work model: Hybrid — 2 days per week in the office 💰 Salary: 45.000€ – 48.000€ gross/year 🌍 Language: English B2 - C1 Mandatory We’re looking for someone with: 4+ years of experience in backend development with JavaExperience Quarkus experience is a plusExperience developing Java APIs and microservices in production environmentsExperience with automated testing, particularly unit and integration testingHands-on experience with AI-assisted development tools such as GitHub Copilot, GitLab Duo, Claude Code, or similarAbility to use AI on a daily basis to accelerate development, testing, debugging, and code reviewsStrong communication skills in EnglishCuriosity and willingness to experiment with and integrate new AI tools into the development process ✨ Nice to have: Experience with LLMs, RAG, or agent orchestrationKnowledge of MCP (Model Context Protocol)Experience with AI-native development practicesExperience with automation, prompt libraries, or specification-driven development frameworks We offer: Health insurance;Free online training through the Udemy platform;On-site and remote training at Olisipo's Learning Center;Free certifications (after passing the exam);Discounts at Olisipo Partners (in the areas of health and well-being, fitness, travel, among others);Free psychological consultations;Possibility of a salary advance, without commissions. Apply now and take your career in a new direction!