F

Furo

Battery-storage optimization and energy trading software

Founding Engineer

Full-Time
€70k - €100k/yr+ Equity
Mid
Munich, Germany
In PersonAt least five days per week in the office.
Software Engineering

About the job

Requirements
  • Experience in a full-stack engineering role building production applications.
  • Frontend development skills with JavaScript or TypeScript, React, preferably Next.js, and Tailwind CSS.
  • Solid backend development experience with Python and mixed integer optimization.
  • Experience with cloud infrastructure using AWS, Google Cloud Platform, or Azure.
  • Fluency in German, because most customers speak German.
Responsibilities
  • Build backend systems for real-time optimization and forecasting.
  • Build frontend applications for battery operators and industrial customers.
  • Build infrastructure that scales across thousands of battery systems.
  • Develop ideas and execute them with minimal guidance.
  • Solve customer problems end-to-end.
  • Talk with customers for at least 20% of the work.
Desired Qualifications
  • Mathematics and optimization skills are highly valued.
  • Fast learning is preferred over extensive experience.

About the company

Furo Energy builds software that controls and optimizes commercial and industrial battery storage. It forecasts power prices and weather up to 48 hours ahead, optimizes charging and discharging in real time, and monetizes unused capacity through energy trading. Unlike many peers, it sells through a partner network of installers, developers, manufacturers and utilities and supports multi-site, fleet-scale forecasting and optimization across Europe. Its goal is to expand across Europe, grow the team, and increase adoption of its platform to reduce electricity costs and improve asset utilization.

Company Size

11-50

Company Stage

Seed

Total Funding

$4M

Headquarters

Munich, Germany

Founded

2025

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Simplify's Take

What believers are saying

  • September 2026 funding from TQ Ventures gives Furo runway to expand Europe-wide.
  • Reported traction of 800 companies and 6,000 sites validates demand one year after founding.
  • Rebranding from Lumera to Furo and Deutsche Bahn adoption strengthen enterprise credibility in Germany.

What critics are saying

  • enspired, Entrix, and Statkraft already dominate European battery trading with gigawatt-scale fleets.
  • Furo’s Deutsche Bahn win signals concentration risk; losing one channel partner hurts deployments fast.
  • If Germany’s storage economics compress by 2027, Furo’s pricing edge and funding narrative weaken.

What makes Furo unique

  • Furo optimizes industrial batteries in real time, not just offline sizing, across 6,000 sites.
  • Its channel-first model sells through installers, OEMs, and utilities, embedding deeply into procurement.
  • Founders Lena Voß, Leonie Wagner, and Simon Wittner leverage CDTM and Munich energy talent.

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Benefits

  • Company Equity
  • Flexible Work Hours

Growth & Insights and Company News

Headcount

6 month growth

33%

1 year growth

33%

2 year growth

33%
TechCrunch
Sep 10th, 2026
German battery software startup Furo raises $4M after founders' strategic move from Silicon Valley

Furo, a German startup developing software for industrial battery storage systems, has raised $4 million in funding led by US-based TQ Ventures, with participation from Neo and Sandberg Bernthal Venture Partners. The company's three 28-year-old founders left Silicon Valley to return to Germany, believing the move has accelerated their growth. Co-founder Lena Sophia Voß said being close to customers and their network in Germany proved crucial for early-stage success. The startup has already secured enterprise clients including Deutsche Bahn, just one year after founding. Despite being a Delaware C Corp with mostly US investors, Furo operates from Munich. The founders cite advantages including lower engineering salaries, access to talent through technical universities, and proximity to Europe's energy market, where electricity cost reduction is particularly pressing.