Mid Backend AI Developer

Porto, Portugal

Senior (4-6 Years)

Hybrid

English Required Portuguese Required Not Accepting Candidates Living Abroad

Role Overview
We are looking for a Backend Developer with experience in Java, Quarkus, and AI development to join
our team. AI will be a core part of your daily workflow, using tools such as GitLab Duo and Claude Code
to accelerate coding, testing, and code reviews. You will help the team deliver backend tasks faster and
with higher quality, bringing an AI-first mindset to how we build, test, and release backend services.

You will...
• Design, build and maintain backend services and APIs using Java and Quarkus.
• Use AI tools such as GitLab Duo and Claude Code as part of your daily workflow to accelerate
coding, testing, debugging and code review.
• Solve day-to-day backend team tasks – features, bug fixes, refactors, integrations – leveraging AI
to move faster without compromising quality.
• Write automated tests (unit and integration) for backend services, using AI to speed up test
creation and improve coverage.
• Take part in code reviews – both AI-assisted and with teammates – ensuring code quality and
adherence to our engineering standards.
• Troubleshoot and resolve issues in CI/CD pipelines, using GitLab Duo to speed up root-cause
analysis.
• Collaborate closely with other backend engineers, QA and product to deliver reliable, well-tested
software.

We connect IT professionals with projects that match their skills, professional experience, and goals, then we offer a career progression program, delivered by in-house specialists - our People Experience Partners - to guide them through our journey with us.

What we offer:

A project that matches your skills and ambitions, as well as your preferences for working policies and culture.
A competitive salary with awesome benefits and opportunities to leverage your knowledge and network to earn additional income.
An empowering and respectful work culture enriched with social and learning events.
A People Experience Partner specially assigned to you - your go-to career guide, responsible for supporting your growth, facilitating training, and ensuring your work-life balance at KWAN.

At KWAN, they make sure that I feel comfortable with the client I’m working for and that what I’m doing aligns with my career aspirations.

Luis Caldeira, DevOps @ KWAN

At KWAN, I’m given the space to be myself and do what I love. I have control over the projects I work on, as well as the direction of my career.

Pedro Fonseca, Front End Developer @ KWAN

I see my People Experience Partner as someone who is always available to provide me with motivation and constant feedback, which helps me be sure that I am in the right place.

Josimar dos Reis, Software Developer @ KWAN

I know that I’ve contributed to the growth of a company that truly values a “people first culture”, because my ideas, experiences, and individuality were always appreciated.

João Nascimento, Software Developer (KWAN Alumni)

My two years at KWAN were an incredible experience! From the start, I was welcomed into a warm and collaborative environment where I felt truly supported.

Laís Ortiz, Software Developer @ (KWAN Alumni)

Grab this opportunity, apply now!