Full-Stack Engineering Intern

Mercura is building AI software for the backbone of our economy.

We are one of the fastest growing companies from YC’s W25 batch and raised a heavily oversubscribed round at one of the highest valuations in our cohort. After surpassing $1M in ARR in under a year, we are looking for team members ready to go all-in to help us reach our next milestone: $10M ARR by the end of 2026.

One of our co-founders, Lukas, grew up in a trades family that has been active in the construction industry for over 115 years. Having worked on the construction site himself, he learned first-hand how slow and manual quoting still is in the industry.

In an era where AI becomes ubiquitous, we set out on a deeply personal mission: bring AI to the backbone of our economy - to the companies that keep our world running.

We’re looking for Full-Stack Engineering Interns to help us build AI systems end-to-end. This is a fast-paced, hands-on role for candidates with high agency. At Mercura, you will collaborate closely with the best engineers and gain real-world experience in building AI applications in an industrial B2B context.

If you're excited about full-stack engineering and AI, this is your opportunity to learn, experiment, and contribute.

What you will be working on

• Work across the full stack to build AI agents end-to-end
• Build data pipelines to process large-scale unstructured data efficiently
• Deploy and manage software in cloud environments
• Make our backend scalable, stable and efficient
• Take technical ownership by making pragmatic and efficient decisions about frameworks, tools, and architecture to balance speed and quality
• Develop scalable and reusable components and API structures
• Write clean and maintainable code with sensible testing

What we're looking for

• High agency and experience with building software and iterating quickly
• Strong experience with full-stack software engineering (React, Typescript, Python), particularity backend engineering
• Cloud & DevOps: Experience with containerization (Docker, Kubernetes), cloud infrastructure (Azure/AWS/GCP), and infrastructure as code (Terraform)
• Product mindset: You demonstrate product thinking on a deep level and solve problems end-to-end
• Strong problem-solving capabilities and willingness to learn new technologies
• You’re excited to strive for excellence and build software in a fast-paced startup environment
• You want to work in-person in Munich with more intensity than in a 9-5 job

Company Perks

• Free team dinner (up to 4x/week)
• UrbanSportsClub membership - join our team workouts 3x/week
• Easy relocation to Munich — our office is located in the Werk1 Startup Incubator, where you can rent a 1-bedroom apartment right next to the office for just €750/month
• Access to any AI or productivity tools you need