Cortea AI Logo

Cortea AI

Senior/Staff Fullstack Engineer (m/f/x)

Reposted 4 Days Ago
Be an Early Applicant
In-Office
Berlin
Senior level
In-Office
Berlin
Senior level
Build full-stack product features and complex UIs, implement reliable long-running workflows, develop and improve LLM agents and their eval/harness pipelines, write production APIs and data models for multi-tenant scale, drive architecture via RFCs, and collaborate closely with product and design.
The summary above was generated by AI
About us

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.

Your Role

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.

A lot of what we build has no reference implementation. You're comfortable wading into something nobody has solved yet and shipping a first version that actually works.

Our engineering team is a small, flat group of builders: strong ICs who open a laptop when they see a problem instead of scheduling a meeting. Everyone owns real product and architecture decisions, and that's exactly what we want more of.

What you'll do
  • 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

Qualifications

You'll fit here if you:

  • 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

Nice-to-haves that are a plus:

  • 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

No one checks every box. If you ship across frontend, backend, and data and own what you build, let's talk.

Our tech
  • React, TS, Tailwind, TanStack

  • Python, Postgres, Temporal, Kafka, Redis

  • GCP, Azure, k8s

  • GitHub, Linear, Slack, Notion

What We Offer
  • 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

Interview 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

Similar Jobs

23 Days Ago
Hybrid
Senior level
Senior level
Healthtech
As a Senior Full-Stack Engineer, you'll develop and manage core software solutions, driving workflow automation and data analytics while collaborating with cross-functional teams.
Top Skills: Node.jsPostgresRedisRest ApisTypescriptVue
24 Days Ago
Hybrid
Senior level
Senior level
Productivity • Software
As a Senior Full Stack Developer, you'll build and enhance a web platform, solve complex problems, and collaborate with teams to drive architectural improvements and maintain code quality.
Top Skills: Alpine.JsC++CSSHTMLJavaScriptJenkinsLaravelPHPPythonStatamicTailwind
27 Minutes Ago
Easy Apply
Hybrid
Easy Apply
Expert/Leader
Expert/Leader
Marketing Tech • Mobile • Software
Sell Braze’s customer engagement platform to large financial services enterprises across Central EMEA. Manage complex, high-value SaaS deals ($200K–$1M+/yr), identify decision makers, collaborate with internal teams and partners, use CRM to manage pipeline, and travel as needed to maintain account coverage and drive adoption.
Top Skills: BrazeClariSalesforce

What you need to know about the London Tech Scene

London isn't just a hub for established businesses; it's also a nursery for innovation. Boasting one of the most recognized fintech ecosystems in Europe, attracting billions in investments each year, London's success has made it a go-to destination for startups looking to make their mark. Top U.K. companies like Hoptin, Moneybox and Marshmallow have already made the city their base — yet fintech is just the beginning. From healthtech to renewable energy to cybersecurity and beyond, the city's startups are breaking new ground across a range of industries.

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account