About Mercura

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.

Why Mercura

-Join an ambitious team that feels like family: Your future colleagues include top graduates, Science Olympiad medallists, ex-founders and come from places such as Google, Bain, MIT, TUM, Harvard, CDTM, and Cambridge. We bring extraordinary people together and deeply invest in your growth as your mentors, teammates and friends. We care, trust, and support one another like family, and we make sure that fun is at the heart of everything we do.

-Work with the latest tech: AI is at the core of our product. As we are backed by Y Combinator, and leverage the latest tech to push the boundaries of LLMs and ML. With us, you’ll tackle meaningful challenges and shape how users interact with AI.

-Thrive in a high-growth, high-commitment environment: We’re growing extremely fast because we always put our work and our customers first. If you excel in fast-paced settings and want to grow as part of something big from day one, Mercura is for you.

-Build something with real-world impact: We ship code that directly helps a massive, yet overlooked manual industry run more efficiently and sustainably. With us, you can work on AI that contributes to economic growth and stability on a huge scale.

-Build our company: As an early team member, you will have a direct, lasting impact on our culture, technology, and product. Joining us offers immense rewards: ownership, financial upside, and hands-on experience building a company from the ground up. Our track record speaks for itself - over five Mercura alumni have gone on to found their own companies and raise millions after their time with us.

About the Founders

We are Lukas, Stefan & Sean, the co-founders of Mercura.

We share a deep commitment to excellence and the discipline to pursue what others might consider impossible.

Two of us come from non-academic families, and we all know what it means to create our own paths and overcome barriers. This experience shapes our belief in equal opportunity and fuels our dedication to social mobility.

Lukas is responsible for business development at Mercura. With his background as a Data Scientist at Allianz and at Google in Silicon Valley, he brings extensive expertise in data and AI. Lukas’ family has been active in the construction industry for over 100 years, giving him a deep understanding and passion for the sector's specific needs.

Sean is responsible for technical development at Mercura. As a top 0.01% physicist, Sean earned a Silver medal for Germany at the International Physics Olympiad (IPhO), began researching with the Max Planck Institute at the age of 16, and has since published at leading machine learning conferences.

Stefan leads product development at Mercura. Previously, he worked in management consulting at Bain & Company, where he helped manufacturers improve their operations. Stefan leverages his research experience at the Massachusetts Institute of Technology (MIT) and Harvard Business School to develop innovative solutions for the industry.

At Mercura, we believe that the best ideas emerge when people from different backgrounds collaborate together. We hire based on ability, mindset, and values, and we live by one simple rule: the best idea wins.

Beyond Mercura, we actively support initiatives that promote diversity and gender equity and commit a portion of our personal income each year to organizations expanding opportunity for others.

Our company values

-Customer first. Our customers are at the heart of everything we do. We do whatever it takes to help them win and build lasting trust.

-Aim high. We pursue ambitious goals with full ownership and perseverance to achieve what others might consider impossible.

-Win together. Collaboration drives our success - we support, challenge, and trust one another to grow and win as a team.

-Enjoy the ride. Our culture empowers people to be authentic, stay curious, and enjoy the ride - because that’s when the best work happens.

Don't see your Dream Job?

We’re always looking for talented individuals. If no role matches your skills, send us an open application at [email protected] or connect with us via LinkedIn.

You know someone great? Introduce them to [email protected] 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

About the role

We’re hiring our first Product Designer (part-time) to shape the look, feel, and usability of our product. You’ll work closely with our CPO and engineers to design clean, intuitive interfaces for non-technical users that make complex B2B workflows effortless and AI-first. In this role, you will own the entire design process end-to-end , speaking directly to customers and making core product and UX decisions.

Commitment: part-time (approx. 15–25 hrs/week), in-person in Munich (hybrid possible). Option to increase scope over time.

What you will be working on

• Work closely with our customers, understand their problems, lead user research projects and own the design process end-to-end

• Build prototypes and test product hypothesis with customers

• Create intuitive, AI-first interfaces that make complex B2B workflows effortless

• Work closely with our engineering team to implement new features

• Contribute to brand & marketing when needed (website, visuals, presentations)

What we’re looking for

• You have proven experience as a product designer with a strong portfolio in complex B2B SaaS workflows

• You love speaking to customers directly to identify pain points and problems

• You are highly proficient in Figma and feel comfortable with Lovable, Cursor etc to build prototypes

• You are comfortable working in a fast-paced startup environment and want to build something from the ground up

• Ideally, you feel comfortable shipping frontend changes (React/Tailwind) to production

• Ideally, you are in Munich or willing to relocate

• Ideally, you are open to the possibility of transitioning into a full-time role in the future

• Fluent in German and English (our users are mostly German-speaking only)

What we offer

• Guaranteed career advancement opportunities in a rapidly growing team

• An ambitious team that feels like family and sees their work as more than just a job

• Real shares in our company with the most favorable tax treatment - no VSOP/ESOP (full-time positions only)

• 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

The target total compensation (cash+bonus+equity) for this position is €70,000-€100,000 annually (full-time, pro rata for part-time). Actual offers and compensation are based on specific job duties, experience, performance, total rewards structure, and other considerations.

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: Practical exercise & role play

Two practical exercises to showcase your skills, followed by calls to walk us through your approach, insights, and solution for the exercise.

Step 3: Personal fit Interview

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

Step 4: On-Site

Work alongside the entire team for a day on-site from our Munich office to fully immerse yourself in our culture and collaboration style. This on-site will be paid.

Step 5: Offer & Reference Checks

If we see a great fit, you will get an offer, including a competitive compensation package with equity participation. At the same time, we’ll ask you to provide 2–3 references so we can gather additional insights into your strengths and working style.

_ 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

Software Stack: Typescript, Python, React, Next, Docker, Terraform, Postgres AI Stack: Vector databases, LLMs, Embeddings, observability & evals