Founder's Associate (Fulltime) at Heidi Systems | Berlin, DE | Rezi

Founder's Associate (Fulltime) at Heidi Systems

Founder's Associate (Fulltime)

Heidi Systems · Berlin, DE

2 weeks ago

Founder's Associate (Fulltime)

Heidi Systems · Berlin, DE

18 days ago
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About the Role

As a Founder's Associate, you will work directly with our founder, taking on responsibility from day one, driving initiatives, and delivering on strategic and operational goals. You will be instrumental in digitizing a large European market and building the infrastructure for intelligent energy management in buildings.

Responsibilities

  • Work directly with the Founder on high-leverage projects across operations, sales, product, and strategy.
  • Take on concrete operational responsibility from day one, owning customer and object onboarding, managing property managers, installers, and suppliers, through to final handover.
  • Identify manual and repetitive processes, implement no-code/low-code solutions (e.g., n8n workflows, Claude Code) to measurably increase operational efficiency.
  • Support fundraising activities and attend customer and partner meetings.
  • Maintain oversight of project status, identifying missing elements and pending actions.
  • Drive own initiatives from idea to implementation, translating unclear problems into concrete plans with measurable results.
  • Conduct market and competitor analysis to derive decisions.
  • Build and improve internal systems for reporting, documentation, and tracking.

Requirements

  • Demonstrated eagerness to prove oneself immediately.
  • Fast comprehension and ownership mentality; ability to work independently with attention to detail.
  • Proactive work ethic, independently learning new topics, tools, and processes.
  • Commitment to personal growth and well-being.
  • Ongoing or completed Bachelor's or Master's degree in Business, Engineering, Real Estate, or a related field.
  • Ideally 2+ relevant internships and/or professional experience in a startup, consulting, M&A, VC/PE, or Real Estate environment, or equivalent intensity from another field.
  • High intrinsic motivation and strong entrepreneurial thinking with the ability to proactively drive projects, learn quickly, take responsibility, and handle ambiguity.
  • Strong analytical and conceptual skills to approach complex problems structurally, directly, and solution-oriented.
  • Excellent written and verbal communication and presentation skills, adaptable to various audiences.
  • Technical affinity (e.g., AI, IoT, SaaS) and interest or initial experience in Real Estate, PropTech, ClimateTech, or Energy is a plus.
  • Native-level German proficiency (non-negotiable) and fluent English.

Skills

  • No-Code/Low-Code solutions (e.g., n8n workflows, Claude Code)
  • Market and competitor analysis
  • Reporting
  • Documentation
  • Tracking
  • AI
  • IoT
  • SaaS
  • PropTech
  • ClimateTech
  • Energy

Location

  • Berlin

Work Type

  • Full-time
  • Permanent position

Experience Level

  • Entry-level

Education Level

  • Bachelor's degree
  • Master's degree

Benefits

  • Direct collaboration and daily mentoring from an experienced founder.
  • Steep learning curve.
  • Opportunity to be part of a fast-growing early-stage startup.
  • High degree of personal responsibility, speed, and creative freedom.
  • Chance to make a real impact on the energy transition.
  • Clear option for permanent employment upon very good performance.
  • Opportunity to help build Heidi as one of the first 20 employees.
  • High-performance team with a humorous and supportive culture.
  • Regular team dinners and events.
  • Newly renovated old building office in Berlin Mitte near Monbijoupark.
  • Communal work at one table, short distances, and direct decision-making.
  • Access to a strong network in real estate, tech, energy, and venture capital.

About the Company

  • Heidi Systems is building the Energy OS for Real Estate, digitizing one of Europe's last analog markets and creating infrastructure for intelligent building energy management.
  • The company currently has 8 people, a strong pipeline with over 5,000 active deals, and has completed an angel round with founders from unicorns and directors from Google and OpenAI.
  • Heidi Systems is set to achieve 10x growth in 2026 by revolutionizing the metering industry with a PropTech and ClimateTech platform that makes energy and consumption data fully digital, transparent, and real-time.
  • The company connects software, IoT, and operations to create the foundation for intelligent and efficient building energy infrastructure.