Staff Engineer – Heartbeat AI

🕒 August 4

🇩🇪 Germany – Remote

⏰ Full Time

🔴 Lead

🧑‍💻 Full-stack Engineer

👻 Ghost score 15%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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1KOMMA5°

WebsiteLinkedInAll Job Openings

1001 - 5000 employees

Founded 2021

💼 Consulting

📦 Logistics

🏗️ Construction

Consulting • Logistics • Construction

1KOMMA5° is a company dedicated to providing sustainable energy solutions through the installation and management of solar panels, heat pumps, energy storage systems, and energy management technologies. Their Heartbeat AI and Dynamic Pulse technologies intelligently connect and optimize users' energy systems, allowing for significant savings in energy costs. The company emphasizes independence from traditional energy markets by enabling households to produce and manage their own clean energy. With a focus on sustainability, 1KOMMA5° also facilitates the sale of surplus solar energy, helping users earn additional income. They operate comprehensively, offering consultation, planning, installation, and service through their extensive network across multiple countries.

📋 Description

• Own the technical direction across Heartbeat AI’s engineering domain, including Mobile Apps, Energy Data, and the IoT platform • Keep the architecture aligned with product strategy • Ensure consistent execution of technical decisions and hold the team accountable for implementation • Set the technical standard and solve the most difficult technical problems • Translate business and product requirements into technical solutions • Mentor and challenge Heartbeat AI engineers • Build and maintain a high-performing engineering culture • Embed security and reliability as direct customer-facing value • Architect systems and APIs for AI agents with machine-readable contracts and structured error handling • Drive Heartbeat AI’s shift toward agentic engineering • Own the architecture of the AI systems powering the product, from EMS to energy tariffs • Report directly to the CTO

🎯 Requirements

• Minimum 5 years of hands-on software development experience • Extensive hands-on experience with multiple general-purpose programming languages • Proven track record of architecting scalable and secure systems • Extensive experience designing and implementing APIs for integration and system communication • Agile, results-oriented mindset with emphasis on collaboration and teamwork • Ability to communicate with stakeholders in business terms and to understand technical implications • Experience driving technical alignment and following through on critical technical decisions in fast-paced environments • Experience designing systems and APIs for agent consumption, including structured errors and clear contracts • Ability to guide an engineering team through the transition to agentic engineering • Experience architecting AI/ML-driven or data-intensive systems, ideally in an energy or IoT context • Strong verbal and written communication skills in English • German proficiency is a plus

🏖️ Benefits

• International, dynamic, and highly motivated team • Direct impact on the energy transition and the climate • Learning opportunities from experienced colleagues • Direct contact with core decision-makers • Strong prospects for a full-time role at one of Europe’s most successful scaleups • Remote work across Germany • EGYM Wellpass benefits • Futurebens benefits and discounts • Job bike leasing for city bikes or e-bikes • Individualized opportunities for professional development