(Senior) Full-Stack Engineer

Overview

Mercura automates quoting in the construction industry with AI agents. Our software frees sales teams from manual back-office tasks and lets them process requests in minutes instead of days. We rank in the top 5% of YC’s W25 batch by revenue. After YC, we closed an 8x oversubscribed round with top-tier investors and angels. In just 7 months since founding, we are already on track to reach €1M ARR , and we continue to grow massively.

As a (Senior)Full-Stack Engineer , you will play a key role in architecting and building complex AI systems end-to-end. This is ahands-on role for engineers with high-agency and strong technical depth . We’re looking for experienced builders with a strong product mindset and a track record of shipping complex AI systems.

If you are an experienced builder who thrives at the intersection offull-stack development, AI & ML - this is your opportunity to set the technical direction, mentor others, and shape how users interact with AI.

What you will be working on

• Own the architecture and design of AI systems
• Collaborate with and other stellar engineers across the full stack and help everyone become better
• 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

We are looking for senior engineers with a strong background in SWE, AI & ML - and the capability to lead the team and grow into a founding engineer role.

Technical skillset:

• Strong experience with full-stack software engineering (React, Typescript, Python), particularly backend engineering
• Proven track record of architecting and building complex, production-grade software systems
• Cloud & DevOps : Experience with containerization (Docker, Kubernetes), cloud infrastructure (Azure/AWS/GCP), and infrastructure as code (Terraform).

Commitment & Mindset:

• High agency & initiative : You develop new ideas and drive them in execution under minimal guidance
• Mission-driven : Mercura is part of your life’s mission, and you are willing to make sacrifices to prioritize your job over (almost) everything else
• Product mindset: You demonstrate product thinking on a deep level and solve problems end-to-end
• You’re excited toiterate quickly and build software in a fast-paced startup environment
• You want to work in-person in Munich with a higher intensity than in a 9-5 job

Leadership & Communication:

• You have experience in leading engineering teams as a senior/staff/lead engineer
• You have the potential to grow into the founding engineer role
• You\’re one of the strongest engineers in the team and make everyone else better
• Everyone can come to you for advice on how to fix their hardest problems
• Clients respect your presence & technical expertise

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
• Real shares in our company with the most favorable tax treatment
• Access to any AI or productivity tools you need

The target total compensation (cash+bonus+equity) for this position is €100,000-€250,000 annually. Actual offers and compensation are based on specific job duties, experience, performance, total rewards structure, and other considerations.

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