Mercura

AI Engineering Intern

Remote Full-time

About the role

We’re looking for AI 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 software 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

  • Work with embeddings and fine-tune LLMs for classification and reranking

  • Optimize algorithms for product search

  • Apply RLHF & DPO to align LLMs with human feedback

  • Build data pipelines to process large-scale unstructured data efficiently

  • Make our backend scalable, stable and efficient

What we're looking for

  • High agency and experience with building software and iterating quickly

  • Experience with NLP, LLMs, Embeddings, ML, and AI-powered applications

  • First Experience with full-stack development (TypeScript, Python, React, Next)

  • 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

About the interview

Step 1: Intro call

Casual intro meeting with one of the founders to get to know each other and introduce Mercura.

Step 2: Technical interview

A take-home technical challenge to showcase your skills, followed by a call to walk us through your approach, insights, and solution for the take-home exercise.

Step 3: Personal Fit

Meet another co-founder to get a feel for our culture and working style.

Step 4: Offer

If we see a great fit, you will get an offer, including a competitive compensation package.

_ You know someone great? _ _ Introduce them to us _ _ and get up to €10,000 in referral bonuses if we hire them! _

  • For Full-Stack/AI Engineers: €10,000 bonus

  • For BDRs/AEs: €5,000 bonus

  • For internships/part-time roles: €500 bonus

  • Any other role: €1,000 bonus

🚀 Y Combinator Company Info

Y Combinator Batch: W25
Team Size: 14 employees
Industry: B2B Software and Services -> Sales
Company Description: AI Quote and Order Automation for Distributors & Manufacturers

💰 Compensation

Salary Range: $3,000 - $4,000

📋 Job Details

Job Type: Full-time
Experience Level: Any (new grads ok)
Engineering Type: Full stack