Full-Stack Engineer (Founding Team)

The construction industry loses $1.6 trillion annually to inefficiencies. A huge part? Repeating the same mistakes over and over because critical information is still stuck in paperwork and scattered systems.

alago fixes this by putting existing data to work, instead of letting documentation gather dust. We help teams eliminate double data entry and manual busywork by connecting to existing tools, processing project data, and automating workflows between people and AI. With every project, alago gets more powerful —spotting risks and turning past challenges into future wins.

We’ve just raised a seven-figure pre-seed led by top construction tech VCs and one of Germany’s largest project developers. 75% of the infrastructure that will exist in 2050 does not exist today. Let’s build it better!

Aufgaben

As one of our first hires, you'll have complete technical ownership of our product, working directly with founders to build a category-defining platform from the ground up.

You'll enjoy true end-to-end ownership —from database architecture to user interface—and direct customer impact by shipping features that solve real problems for an industry ripe for disruption.

• Own the full product experience: Build customer-facing features from database design through beautiful, responsive frontends that users actually love using.
• Architect for scale: Design robust, scalable systems that handle complex workflows and large datasets while maintaining excellent performance and developer experience.
• Ship fast and iterate: Work in a high-velocity environment where your code goes from idea to production in days, not months—with the infrastructure and tooling to support rapid, confident deployments.
• Solve interesting technical challenges: Work with complex, real-world data and build sophisticated workflows that go far beyond typical CRUD applications.

Why this role is different:

• Complete technical autonomy to choose technologies and approaches
• Direct founder collaboration on product and technical vision
• Modern, best-in-class stack chosen for developer happiness and velocity
• Immediate user impact in an underserved industry ready for transformation
• Green field opportunity to build something from scratch the right way

You will be working closely with Vinzenz (CTO) and Ann (CPO) who prioritize developer experience over premature optimization.

We prioritize speed: instant deploys, no infra headaches, and developer velocity over cost. AI is baked into everything—engineers spend above €500 per month for AI tools like Cursor Background-Agents and Claude Code. Our product teams handles small features and fixes with AI agents, leaving you only the hard problems.

Our stack at a glance: TypeScript, Next.js, Vercel, Supabase (PostgreSQL + vectors), LangChain, TanStack Query, shadcn

Ready to tackle the hard stuff? Join us!

Qualifikation

This is the perfect role for a full-stack engineer who wants to join an early-stage company and build a product that transforms how an entire industry operates.

Must-Haves:

• C1 fluency in German – You'll be building interfaces for German construction professionals and need to understand industry terminology to create intuitive user experiences.
• 2+ years full-stack experience with TypeScript and React/Next.js – You can build complex, responsive frontends and robust backend APIs without getting stuck on framework fundamentals.
• Database design and optimization skills – You've designed schemas, optimized queries, and handled complex data relationships. Construction workflows generate intricate, interconnected data.
• API design expertise – You've built and consumed RESTful APIs, handled authentication, rate limiting, and know how to design interfaces that scale with the business.
• Startup shipping velocity – You move from feedback to deployed features in days, making fast architectural decisions and iterating quickly.
• Product mindset – You think like a user first, engineer second . You can talk to customers, understand their workflows, and build solutions that feel intuitive.

Bonus Points:

• Previous startup experience – especially early employees who wore multiple hats
• Domain experience in construction, manufacturing, or complex B2B workflows
• Strong design sense – can create clean, usable interfaces without needing detailed mockups
• Experience in integrating AI – comfortable working alongside AI features, even if you're not building the AI itself

Benefits

As one of our first hires, you’ll do more than contribute — you’ll help shape how Alago works: our culture, systems, and growth strategy. You’ll work directly with the founders, gain exposure to every function, and ship projects that have immediate impact.

• 10× Learning Curve. Work with cutting-edge AI to tackle real-world challenges every day
• You ship fast and own the outcome. You’ll design solutions that take the pain out of project management, automating away the repetitive tasks and overhead teams hate.
• Work directly with the founders. You’ll own critical parts of alago end-to-end, laying the technical foundation while balancing rapid iteration, customer value, and long-term scalability.
• A vibrant in-office culture in our central Munich office . We come together in our Munich office at least three days a week. Beyond that, you’re welcome to work remotely for a few weeks at a time whenever your circumstances or preferences require it.
• Competitive salary & meaningful equity stake , so you are invested in our success
• Your needs and well-being matter to us . You’ll get access to sponsored EGYM Wellpass to find inner peace at yoga or kill it at HIIT workouts.

We’re building for scale — but right now, it’s still early. That means lots of autonomy, tight feedback loops, and the freedom to grow into whatever role suits your strengths, whether that’s become top individual contributor or stepping into leadership roles like VP Engineering.

About the application process

1. Submit your story

• Tell us why you want to work with us.

2. Intro Call (30min)

• Intro, Logistics & Fit with a founder.

3. Product & Tech Deep Dive (30min)

• Get to know Product and Tech with a founder.

4. Technical Interview (90min)

• Tackle a systems design and coding challenge.

5. On-site Project (0.5-1 day)

• Join us at our Munich office to plan, build and ship a small feature together.

6. Offer

• We’ll get back to you within 24 hours. If it’s a fit — let’s go!

Alago is an equal opportunities employer. We are committed to equal employment opportunity regardless of race, religion, sexual orientation, age, marital status, disability or gender identity. Please do not submit personal data revealing racial or ethnic origin, political opinions, religious or philosophical beliefs, trade union membership, data concerning your health, or data concerning your sexual orientation.