Software Engineer - Internship

• Are you passionate about technology with a purpose? Want to make a meaningful impact on people's health? At Relu, we're growing - and we're looking for someone like you.
• We're looking for a Software Engineering Intern to own our Software/Platform team. You will:

About Relu

• Relu is a Leuven-based AI start-up automating the 3D design of dental appliances - freeing up time, cutting costs, and improving global access to dental care.
• We’re a team of 25 engineers, business and dental people who:
• Learn fast

Responsibilities

• AI Agents that can automate the full end-to-end workflow of a dental lab; from order intake, through digital design of dental appliances, to manufacturing (e.g. 3D printing) and delivery
• Build and scale our web platform used by thousands of users globally, ensuring it can handle growing user volumes and orders Develop powerful 3D web tools and viewers, allowing our users to inspect and edit the AI proposals, ranging from CAD editing to end-to-end implant treatment planning.
• Think from the user's perspective to turn complex workflows into intuitive experiences Design and implement slick user interfaces with a focus on user-friendliness and efficiency
• Build clean, reusable, and testable software components

Requirements

• Currently pursuing a Master's degree in Computer Science, Software Engineering, Engineering, or related field
• Solid understanding of at least one modern programming language (Python, JavaScript, Java, or C++)
• Basic knowledge of software development principles and version control (Git)
• Strong UX and design sensibilities
• Available for a minimum 6-week internship, ideally longer
• Strong problem-solving skills and eagerness to learn in a fast-paced environment

Good communication skills in English

• Collaborative team player who actively seeks feedback and guidance
• Proactive and self-motivated with ability to work independently when needed
• Curious mindset with willingness to tackle diverse technical challenges
• Adaptable and comfortable with ambiguity in a scale-up environment
• Frontend: Vue.js, React, TypeScript, Three.js, TanStack, Figma
• Backend & APIs: Python, FastAPI
• Infrastructure & DevOps: Docker, Kubernetes, Terraform
• Fluent in English (written and spoken)

Preferred

• Prior internship or project experience in software development
• Already in your Master's
• Familiarity with web technologies (React, Node.js) or cloud platforms (AWS, Azure, GCP)
• Interest in AI/ML applications or healthcare technology
• Experience with agile development methodologies
• Experience in building complex web applications

Benefits

• Able to work from our Leuven office at least 3 days per week
• A mission that matters: we're improving dental care and making higher-quality dentistry accessible to everyone, globally
• A fast-growing company where your growth goes hand-in-hand with ours — real impact, real ownership, early responsibility and skills in the technologies of the future
• The chance to work with the latest AI technologies and industry leaders in dentistry
• Fun team culture: after-works, bi-weekly sports, hackathons, retreats
• Get stuff done
• We are actively growing our team and our technology evokes more interest every day, expect your role to evolve over the years!