INTERNSHIP DETAILS
Founders Associate Intern (Business) - 2-6 months
CompanyBlindleister GmbH
LocationBerlin
Work ModeOn Site
PostedFebruary 22, 2026

Internship Information
Core Responsibilities
The associate will act as a high-level assistant to the business co-founder, focusing on critical business scaling activities across finance, processes, and hiring. Responsibilities include expanding sales structures with asset operators and driving at least one signature project end-to-end.
Internship Type
intern
Company Size
8
Visa Sponsorship
No
Language
English
Working Hours
40 hours
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About The Company
Blindleister builds software that creates transparency in the German electricity grid, offering a comprehensive overview of available assets, their technologies and critcal grid regions. It enables operators of renewable energy parks to optimize and market their reactive power for the first time. This dual approach facilitates the aggregation of the most cost-efficient generators for grid services, enhancing overall efficiency and power system stability of the grid.
About the Role
<p><strong>Blindleister</strong> is a Berlin-based energy-tech startup building software solutions for the future power grid. Its software enables wind, solar, and battery parks to market their reactive power for the first time and, in doing so, actively stabilize the electricity grid.</p>
<p>Reactive power plays a crucial role in maintaining grid stability. As conventional power plants are phased out, system stability increasingly depends on renewable assets providing reactive power. We make this transition possible at scale.</p>
<p>As <strong>Founders Associate (Intern)</strong>, you will act as high right hand to help Niklas, our business co-founder and MD, to scale all critical parts of the business. This role is ideal if you are a high-performing student or recent graduate who wants to work directly with a founder instead of in a large hierarchy, and who is willing to take ownership from day one. </p>
<p>If you want to work at the intersection of sustainability, energy markets, and software, Blindleister offers you a role in shaping the energy system of the future very early in the company’s journey. </p>
<p>We look forward to hearing from you!</p>
<h2 id="aufgaben">Aufgaben</h2>
<p>Your Responsibilities</p>
<p>You will work on high-leverage projects rather than a narrow functional box.</p>
<ul>
<li>Work directly with our MD on all business-related topics like company building, finance, processes and hiring.</li>
<li>Expand and optimize sales structures with asset operators and owners.</li>
<li>Design and implement scalable internal processes.</li>
<li>Take full ownership of at least one “signature project” and drive it end-to-end.</li>
<li>...and contribute your own ideas on what we can improve upon and the shape of your role.</li>
</ul>
<h2 id="qualifikation">Qualifikation</h2>
<p>Your profile</p>
<ul>
<li>Ongoing or completed studies in Business Administration, Economics, Management, Industrial Engineering, Business Informatics, or a similar field</li>
<li>Strong interest in technology, sustainability, or renewable energy</li>
<li>Motivation to help build a scalable company and introduce a completely new solution to the energy market</li>
<li>High level of reliability and independence, especially switching between different roles</li>
<li>Excellent communication skills in German and/or English, both spoken and written</li>
<li>0–3 years of experience in high-performance environments, e.g. in a startup or consulting environment</li>
</ul>
<h2 id="benefits">Benefits</h2>
<p>What We Offer</p>
<ul>
<li>Daily collaboration with the founders (primarily Niklas) in a <10 people team and exposure to key strategic decisions</li>
<li>End-to-end ownership for projects that visibly move company metrics and can become strong “spikes" on your CV</li>
<li>Deep insight into an emerging startup in a growing market: grid stability and renewable integration</li>
<li>Fast learning curve in a small, ambitious team where you see the direct impact of your work instead of a tiny piece of a large organization </li>
<li>Insights into all areas of the company</li>
<li>Flexible working hours - you decide how to manage your time</li>
<li>Hybrid work setup with an office at Ernst-Reuter-Platz in Berlin Charlottenburg close to the famous Ku'-Damm</li>
<li>Possibility to transition into a full-time position</li>
</ul>
<p><strong>Start date:</strong> Summer 2026 or as soon as possible<br><strong>No cover letter required.</strong><br>We look forward to hearing from you!<br>Questions? Send us an Email or text us on LinkedIn!</p>
Key Skills
Company BuildingFinanceProcess DesignHiringSales Structure OptimizationProject OwnershipReliabilityIndependenceCommunication
Categories
EnergyEnvironmental & SustainabilityConsultingEngineering
Benefits
Daily collaboration with the foundersEnd-to-end ownership for projectsDeep insight into an emerging startupFast learning curveInsights into all areas of the companyFlexible working hoursHybrid work setupPossibility to transition into a full-time position
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