
Cortea · Berlin
ABOUT US We’re Cortea, a Berlin-based startup rebuilding how audits are done. Audits are still driven by spreadsheets, checklists, and manual reviews in one o...
We’re Cortea, a Berlin-based startup rebuilding how audits are done.
Audits are still driven by spreadsheets, checklists, and manual reviews in one of the most regulated, high-stakes areas of
business. We use AI to automate audits end to end, so highly educated auditors no longer spend 60+ hour weeks on manual work and
can focus on judgment, trust, and choices that matter.
With €15m+ in funding, a live product, and paying customers across Europe, we’re at a stage where your choices will directly shape
Cortea’s future, and how audits are done.
This isn't an administrative or "assistant" role. As Chief of Staff, you are a core member of the leadership orbit. You will work
directly with Valentin (Co-Founder) to translate high-level vision into operational reality.
You will sit at the intersection of Growth, Strategy, Finance, and Operations. Your mission is to tackle the most complex,
ambiguous challenges that don’t yet have a home, whether that’s architecting our international expansion, refining our AI-driven
unit economics, or managing the machinery of a Series B fundraise.
This role is a springboard. You will gain a "CEO-level" view of building a category-defining AI company.
spearheading entry into new European markets, or optimizing the sales-to-onboarding funnel).
data rooms that will fuel Cortea’s growth.
supercharged with AI agents and automation — that allow Cortea to scale toward €100m+ ARR without losing speed. You'll treat
internal workflows as products, deploying AI wherever it removes friction.
projects stay on track even when the founders aren't in the room.
VC-backed startup).
a legal contract to get a deal over the line.
investors and the team.
environment.
and founder support.
the best result.
founders' highest-priority tasks.
go-to person for our lead investors.
next major funding milestone.
We’re an equal‑opportunity team and strongly encourage women and underrepresented candidates to apply.
Are you hungry to get your hands dirty and gain real startup experience? At doinstruct, you'll sit next to doinstruct's founders and the Chief of Staff for 3-6 months, not shadow from the sidelines. You decide which workflows are worth automating, build them yourself, and ship. Every project you take on has to clear one bar: a 3-5x return in hours saved, revenue generated, or decisions unblocked. If it doesn't clear that bar, we don't build it. Quick Facts: 🗓️ Start date: Flexible ⏳ Duration: 3-6 months 📍 Location: Prenzlauer Berg near Senefelder Platz (U2), Berlin. In-office, at least 4 days a week. 🧑🚀 Reports to: Founders Charlotte and Mona 💼 Level: Internship, generalist with builder DNA 🛠️ WHAT YOU'LL DO * Work directly with leadership on cross-functional initiatives across GTM, Product, and Ops. * Find the highest-leverage workflows in the company, redesign them around Claude agents, MCPs, and Skills, ship them, measure the lift. * Build the automations yourself, in Claude Code, GitHub, n8n or Zapier, and directly inside HubSpot and Notion. * Own projects end to end: brief, plan, execute, retro. 🤖 HOW WE WORK * Pick your Claude tool by what the problem needs: Cowork for anything multi-step and messy, Code when something has to run, Sonnet or Opus for the genuinely hard stuff, Haiku for volume. * Anything you'd do twice gets checked into GitHub as a skill or an agent, so it's still there after you move on. * "Claude said so" doesn't fly here. "Claude said so, here's how I checked" does. * You don't need a CS degree. You do need to be comfortable opening a terminal and figuring it out. 📈 WHERE THIS CAN LEAD A strong internship is the fastest path into a full-time Founder's Associate or functional role at doinstruct. Not guaranteed, but real. 🧭 WHO YOU ARE * Top 5% of your peers, provable through founding experience, a leadership track record, grades (3rd semester+, 1.8+ GPA), or an unusual builder résumé. * 2+ internships at a top startup, consultancy, VC/PE, or investment bank, or equivalent founding experience. * AI-native, not AI-curious. You already use Claude, Cursor, or similar day to day, and you've shipped at least one prototype or automation, or you're ready to ship your first one in week 1. * You measure impact in hours saved and revenue generated, not slides produced. * Real empathy for blue-collar and frontline work. Time in food, manufacturing, construction, or logistics is a plus, not a requirement. * Fluent in German and English. 🎁 WHAT WE OFFER * Direct impact: your work reaches thousands of frontline workers, and shows up in company metrics within your first weeks. * Full ownership from day one on projects that would normally sit with someone years more senior. * Competitive intern compensation: this isn't an unpaid internship, we expect a lot and pay accordingly. * The AI tooling budget you'd expect: Claude Max, Cursor, GitHub Copilot, n8n or Zapier. * Backed by over €25M in Seed & Series A funding from HV Capital, Creandum, HTGF, and D11Z, so the runway matches the ambition. ____ At doinstruct, you can make full use of your skills and play an active role in the further development of our start-up. And yes, we attach great importance to a positive working atmosphere, maximum transparency, communication at eye level, and support every step of your personal and professional development. Even if you don't tick all of the boxes, but you are motivated and want to work with us, you are very welcome to apply. We embrace diversity and hire people based on their ability to perform a job. People of any race, gender, gender expression, sexual orientation, religion, age, disability, political opinion, or marital status are welcome at doinstruct. _ For questions or remarks please reach out to our Talent Acquisition Manager, Leonard, at leonard.mielke@doinstruct.com.
You'll sit next to doinstruct's founders, and you decide which workflows move to Claude agents, what ships to production, and what gets killed. Every project you take on has to clear one bar: a 3-5x return in hours saved, revenue generated, or headcount avoided. If it doesn't clear that bar, we don't build it. This is full-time, in-office in Prenzlauer Berg at least 4 days a week, starting as soon as you can move. 🛠️ What you'll do * Work directly with Charlotte and Mona on cross-functional initiatives across GTM, Product, and Ops. * Find the highest-leverage workflows in the company, redesign them around Claude agents, MCPs, and Skills, ship them, and measure the lift. * Build the automations yourself, in Claude Code, GitHub, n8n or Zapier, and directly inside HubSpot and Planhat. * Own launches end-to-end: brief, plan, execute, retro. 🤖 How we work * Pick your Claude tool by what the problem needs: Cowork for anything multi-step and messy, Code when something has to run, Sonnet or Opus for the genuinely hard stuff, Haiku for volume. * Anything you'd do twice gets checked into GitHub as a skill or an agent, so it's still there after you move on. * "Claude said so" doesn't fly here. "Claude said so, here's how I checked" does. * You don't need a CS degree. You do need to be comfortable opening a terminal and figuring it out. 📈 Where this role can grow Three tracks so far: become the go-to person for one function (sales, marketing, partnerships, or CX), go deep on AI as a senior IC shaping how the whole company builds with it, or grow into Chief of Staff and take on broader ownership across the business, a role that doesn't exist yet. Which one depends on what you're pulled toward and what the company needs when we get there. 🧭 Who you are * 1-2 years of operator experience, including internships, at a top startup, consultancy, VC/PE, or investment bank. Extra credit if you've been a Founder's Associate, Chief of Staff, GTM engineer, or founded something yourself. * Top 5% of your peers, provable through founding experience, a leadership track record, grades, or an unusual builder résumé. * AI-native, not AI-curious. You already run Claude, Cursor, and n8n day to day, and you've shipped at least one automation that's still running in production. * You measure your own impact in hours saved and revenue generated, not in slides produced or meetings held. * You'd rather write a one-page memo than book a meeting to explain it. * Real empathy for blue-collar and frontline work. Time in food, manufacturing, construction, or logistics is a strong plus, not a requirement. * Fluent in German and English. Berlin-based or ready to relocate within 4-6 weeks. 🎁 What we offer * Direct impact: your work reaches thousands of frontline workers and shows up in company metrics inside your first quarter. * Full autonomy from day one on projects that would normally sit with someone five years more senior. * The AI tooling budget you'd expect from a company that means it: Claude Max, Cursor, GitHub Copilot, n8n or Zapier, and no cap on token spend. * Great salary, a Belonio card for meals and mobility, Wellpass or Urban Sports Club, a language-learning budget. * Backed by over €25M in Seed & Series A funding from HV Capital, Creandum, HTGF, and D11Z, so the runway matches the ambition. ____ At doinstruct, you can make full use of your skills and play an active role in the further development of our start-up. And yes, we attach great importance to a positive working atmosphere, maximum transparency, communication at eye level, and support every step of your personal and professional development. Even if you don't tick all of the boxes, but you are motivated and want to work with us, you are very welcome to apply. We embrace diversity and hire people based on their ability to perform a job. People of any race, gender, gender expression, sexual orientation, religion, age, disability, political opinion, or marital status are welcome at doinstruct. _ For questions or remarks please reach out to our Talent Acquisition Manager, Leonard, at leonard.mielke@doinstruct.com.
WHO WE ARE - OUR MISSION terralayr addresses the massive deficit in global energy storage. The over-indexing of electricity generation from renewable energy sources leads to large volatility on the energy grid. The main problem is that wind and solar farms are fluctuating and, by definition, unsteady—there is no sun at night, and it is not always windy. This increases the need for flexibility in the form of battery storage systems to balance the grid in times when supply and demand do not match. By buying and developing grid-scale storage assets and virtually aggregating them across a layer, we are creating the world's first energy cloud. Imagine AWS for energy. Through the flexibility we secure, we can market flexibility-as-a-service and hedging products/power insurance to utilities, SMEs, and industrial players and create virtual storage capacity for PV and wind farms. WHAT WE ARE HIRING FOR - YOUR ROLE As Chief of Staff (m/f/d), you work directly alongside the CEO and the wider leadership team as a force multiplier across terralayr's most important priorities. You are the CEO's closest thought partner and right hand, while also serving as a trusted advisor and facilitator for the rest of the leadership team, stepping in wherever a critical topic needs an owner. You operate at the intersection of strategy, execution, and organization, turning high-stakes problems and strategic priorities into structured decisions and implementation. One week you are building the case for an acquisition or entering a new market, the next you are running a fundraising process, tightening cross-functional processes, or preparing board meetings. WHAT YOU WILL WORK ON - YOUR RESPONSIBILITIES * Partner with the CEO and leadership team on strategy, prioritization, and decision-making, turning open questions into clear, defensible decisions shaping the company * Own, drive, and align the strategy process across the company, especially via regular strategy/leadership offsites * Work on topics related to market- and business model expansion to further scale terralayrs business * Drive fundraising and investor relations, owning data rooms, investor materials, and the reporting cadence across equity and debt processes * Lead board management, from agenda and pre-reads to minutes and follow-up tracking across the leadership team * Own cross-functional initiatives that span multiple teams, stepping in where no single function has clear ownership * Reduce organizational debt and improve core company processes by fixing unclear ownership and structural gaps, embedding AI and automation where they create real leverage * Drive M&A and corporate development end to end, from target screening and valuation to diligence coordination and execution support * Coordinate regulatory and public affairs topics jointly with Legal to advance and protect terralayr's interests externally WHAT WE ARE LOOKING FOR - YOUR QUALIFICATIONS * 4+ years in management consulting, private equity or a comparable Chief of Staff or strategy role * Strong analytical and structuring skills, able to break down complex problems and build decision-ready analyses and models * Highly motivated, driven, resilient/flexible and effective in a fast-changing environment * Proven track record owning cross-functional projects end to end in fast-paced, ambiguous environments * Excellent stakeholder management, able to influence and align senior leadership without formal authority * Exceptional written and verbal communication, translating complex topics into clear materials for board, investors, and internal audiences * High ownership, structured thinking, and a hands-on execution mindset * Comfort with confidentiality and high-trust work close to the CEO * Fluent in English and German * Interest and ideally experience in energy, climate or infrastructure WHY YOU SHOULD BE EXCITED ABOUT THIS OPPORTUNITY * Our purpose: Join us in building up an asset fleet that has the potential to make a positive impact on society and our planet by addressing the massive deficit in global energy storage. * Focus on innovation: Building our asset fleet following our technology agnostic approach means you will have the opportunity to work with the highest industry standard equipment. * Impact: Your contribution will not only have a positive impact on society; by joining our small and nimble team, your work will make a difference from day one. * Personal development: You will benefit from a learning & development budget of 1,000 EUR per calendar year that you can use for your individual professional development.