Chief of Staff Intern (f/m/d) - AI Startup - Serial Entrepreneurs

We are building Germany's leading Tax Advisory firm. Taxforce was founded based on a simple observation: Many business owners want a tax advisor who acts as a true sparring partner: proactive, responsive, and strategic. What they often get instead is a service provider: booking receipts and filing tax returns, with little real advisory.

We’re building the alternative.

Founded in 2025, Taxforce rethinks tax advisory from the ground up: AI-powered and highly automated, yet personal. We’re starting with healthcare professionals, a complex and underserved segment, with the ambition to expand into many more industries over time.

Instead of pure compliance, we deliver real advisory and become long-term partners to our clients: from initial setup to established organizations.

This is a €40B market in Germany alone, with processes that have barely changed in decades. AI is now enabling a fundamental shift and there are no playbooks yet. We’re writing them.

We’re a small, highly ambitious team in Berlin, backed by €5M from Tenet VC and founded by alumni of Goldman Sachs, Harvard Business School, Bain & Company and the former Klarna Head of Engineering. You’ll work directly with the founders, take on real responsibility from day one, and see how AI transforms a real-world industry.

We offer a high-ownership environment, direct feedback and mentoring, a collaborative team, and competitive salary all from our office near Boxhagener Platz.

Join early and help us redefine tax advisory.

Tasks

As a Chief of Staff Intern, you'll work directly with the founding team and you will be involved in building Taxforce end-to-end, with a focus on Go-to-Market and operations. Exemplary tasks include:

• Support the development and validation of our Go-to-Market playbook
• Identify, test, and scale high-performing sales channels
• Help to build an AI-first GTM-Org, by automating workflows and integrating our end-to-end sales process
• Take ownership of client onboarding and build a scalable and automated onboarding process
• Support our budget, financial planning and investor reporting
• As a Chief of Staff Intern, you'll work directly with the founding team and you will be involved in building Taxforce end-to-end, with a focus on Go-to-Market and operations. Exemplary tasks include

Requirements

• Drive & ambition: You’re motivated to go the extra mile and thrive in fast-paced startup environments
• First practical experience: You’ve gained hands-on experience through internships or working student roles (ideally in Consulting, IB or Tech)
• Strong academic background: You’re studying at or have graduated from a well-regarded university or business school
• Analytical mindset: You are able to think logically, break down complex problems and prioritise between multiple tasks on your plate
• Tech-savvy: You’re comfortable using AI tools and can implement small automations yourself and you have no problem with learning new tools and skills on the go
• Entrepreneurial mindset: You’re excited about building something from scratch and comfortable with ambiguity and rapid iteration
• Collaborational: You are a team player. Working together as a team and sharing knowledge comes naturally to you
• German language skills: We are a fast growing start-up with a diverse team. However, our customers do mostly speak German. Hence we require German language skills.

Benefits

• Work directly with experienced founders: Learn first-hand from a team with backgrounds in Goldman Sachs, Harvard Business School, Bain & Company and high-growth tech companies
• Ownership from day one: Take on real responsibility early and help shape how Taxforce is built across sales, operations, and product
• Front-row seat to AI in the real world: See how AI is applied to transform a traditional industry and actively contribute to building an AI-driven product
• Hands-on venture building: Get deep exposure to building a company from scratch — from go-to-market to operations to product development
• Steep learning curve: Work on real problems, ship quickly, and build skills that prepare you to start your own company
• Strong team environment: Join an ambitious, supportive team with direct feedback and a high level of trust and ownership

Office Policy: 5 days a week in the office, because we feel that is crucial to enable speed, learning, and compounding interests when working next to each other.