Job description
Senior/Staff Fullstack Engineer (m/f/x)
Company Overview
We’re Cortea, a Berlin startup transforming audits with AI. Manual, document-heavy audits waste expert time while demand keeps rising. Our AI-powered software and specialized AI agents remove the repetitive work so auditors can focus on judgment. Backed by top-tier VCs with >15m funding, with a working product and paying customers, we’re rapidly scaling. We value first-principles thinking, speed, trust, and kindness. We build side by side in our Berlin office.
Job Summary
We're looking for an experienced engineer who's happy anywhere in the stack and turns complex audit workflows into product auditors rely on every day. You pick up whatever a problem needs, from the data model to the interface to the agents behind it.
Key Responsibilities
- Build the interfaces auditors work in, partnering with design to turn complex flows into something that feels effortless
- Build and improve the agents at the core of the product, plus the harnesses and eval pipelines around them
- Make the long-running workflows behind the product reliable and debuggable, so failures surface fast instead of silently
- Use AI heavily in your own workflow to move faster, without ever shipping output you can't stand behind
- Drive the how in RFCs and technical discussions with other engineers, and partner with product on the what
Requirements / Qualifications
- Have 5+ years shipping production web applications across the stack
- Write production APIs and model the data behind them so it holds up under multi-tenancy and load
- Are strong on the frontend and can build genuinely complex UI
- Get how LLM agents actually work: agents, harnesses, tool use, and measuring quality with evals
- Keep up with where AI is moving and bring the latest tools into how you work to make yourself faster
- Bring a strong product mindset and real ownership of outcomes
- Make architectural decisions, weigh trade-offs, and build things other engineers can extend
- Are comfortable with ambiguity and work things out from fundamentals when there's no established answer
Preferred Qualifications
- Hands-on experience building agents, harnesses, or eval pipelines
- Data-dense or workflow-heavy B2B products
- Scaling multi-tenant systems as data and traffic grow
- Audit, finance, compliance, or another domain where being wrong is expensive
- Early-stage startup or fast-moving engineering environment
Location
Berlin, Germany
Employment Type
Full Time
Salary & Benefits
- High impact & growth: Front-row seat to scaling an AI startup with real ownership from day one
- Mission-driven culture: First-principles thinking, bold ideas, and a supportive team
- Attractive compensation: competitive salary + meaningful equity
- Personal development: Learning budget for courses and conferences
- True Berlin startup environment: Central Berlin office, team lunches, retreats, flexible vacation
Application Process
First Call — Intro to Cortea with our Founders Associate Liza
Second Call — Technical interview with our Member of Technical Staff Jendrik
Third Call — Deep dive into our culture with our Co-Founder Philipp
On-site Half-Day (Berlin) — Meet the team and work on a real problem together
