Product Engineering Intern

Our mission

We are building the operating system for the €20B German tax advisory industry.

At Limetax, we acquire established tax advisories and transform them into high-performing, technology-enabled businesses. Instead of building software in isolation, we work directly on real companies, real workflows, and real data.

Our goal is simple: reduce manual work in tax advisory and redefine how tax operations are run — through applied AI.

Your mission

As a Product Engineering Intern, you will work on systems that improve and automate real operational workflows inside modern tax firms.

You won’t be working on theoretical side projects or internal mockups. From day one, you will contribute to systems and workflows that are actively used in production across accounting, payroll, reporting, and client operations.

At the same time, this internship is designed to give you hands-on exposure to how scalable operational systems are built in practice. You will work closely with founders, operators, engineers, and tax professionals while gradually taking ownership of projects with close support from the team.

Your work will directly impact how tax professionals operate on a daily basis.

How your day-to-day will look like

Analyze Operational Workflows

Understand and map workflows across accounting, payroll, reporting, and client communication.

Build Workflow Systems

Design and improve operational systems using internal software, APIs, automation tools, and AI.

Identify Bottlenecks

Analyze repetitive work, operational inefficiencies, and workflow failure points.

Prototype Fast

Build MVPs and internal tooling to validate operational improvements quickly.

Improve Operational Reliability

Help turn fragile manual workflows into scalable, repeatable systems.

Operate in Production

Monitor, evaluate, and continuously improve systems running in real operational environments.

Collaborate Closely

Work directly with founders, operators, engineers, and tax professionals to improve how work gets done.

Think in Systems

Focus on processes, scale, reliability, and operational excellence — not just individual tasks.

Is it you we are looking for?

You are...

Studying Computer Science, Information Systems, Business Informatics, Engineering, Operations, or a related field

Interested in automation, AI, operational systems, and workflow design

Curious about how businesses actually operate behind the scenes

Comfortable working in fast-moving and ambiguous environments

Structured, analytical, and highly execution-oriented

Someone who enjoys solving operational problems and improving workflows

Interested in building systems that are used in real production environments

Comfortable working hands-on with tools, data, and processes

Excited to take ownership early on while learning directly from an experienced team

Able to collaborate with both technical and non-technical stakeholders

Experience with Python, APIs, automation tools, Notion, Airtable, Zapier, Make, or AI tooling is a plus.

Why Limetax?

Real impact from day one

You will work on systems that are actively used in production and directly improve real operational workflows across multiple firms.

Real world problems

Work with real processes, real operational constraints, and real company data — not isolated demo environments.

Ownership early on

You won’t just support — you will take ownership of meaningful projects and improvements from early on.

Tight feedback loop

See how your work performs in real workflows and iterate quickly.

Steep learning curve

Learn how scalable operational systems are built in practice while working closely with experienced builders.

Path to full-time

Strong performance can directly lead to a full-time role.

Ideal Start Date

From 01.08.2026 onwards

Location

This role is based in Berlin.