Senior Product Engineer – Heartbeat

🕒 May 27

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Logo of 1KOMMA5°

1KOMMA5°

1001 - 5000 employees

Founded 2021

⚡ Energy

☁️ SaaS

🔧 Hardware

Energy • SaaS • Hardware

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

• As part of one of our teams around Heartbeat AI, you will help building our virtual power plant leveraging our energy manager "Heartbeat", and continuously ship innovative energy market solutions to our customers. • This is a builder role at the intersection of engineering and product: you co-own the product, define what gets built together with your cross-functional team, ship it fast, and use AI as a force multiplier along the way. • Cloud Architects and SREs will enable you to easily deliver and run software in a consistent, secure, and reliable way. • Own feature development end-to-end, from problem framing through production deployment to long-term maintenance • Define feature scope together with PMs and engage with the "why", not just the "what" • Drive technical decisions and guide fellow engineers on architectural choices • Keep feedback loops short: prototype, ship to real users, observe, adjust • Use AI tools to amplify your impact and explore AI-powered product opportunities where they make sense • Push back when something doesn't make sense and propose a better direction • Improve developer experience by reducing tech debt, automating workflows, and documenting decisions and runbooks

🎯 Requirements

• Solid backend engineering skills with a strong grasp of distributed systems; TypeScript experience is a plus but not required • Experience with at least one frontend framework • Familiarity with cloud infrastructure, CI/CD pipelines, and observability tooling; you understand how your code runs in production • Proven ability to own features end-to-end, from rough problem statement to shipped, maintained product • A product and customer mindset: you think about user problems, not just implementation elegance • Experience working in cross-functional teams with product managers and designers • You actively seek input from your peers and create visibility where it's lacking • Comfortable with ambiguity and proactive about asking for what you need to get the job done • Excited to leverage AI tools to enhance your impact, including agentic coding • You communicate ideas clearly and concisely in written and spoken English • Ideally You Also Bring One of These: You check at least one of these boxes. It's how we match you to the right team: Flutter or mobile development experience; Data engineering fundamentals (BigQuery, data pipelines); Hands-on experience with energy systems, IoT, or climate tech; Bonus Points for German language skills; Experience building AI-powered product features (LLMs, agents); Prior experience in a startup or scale-up environment.

🏖️ Benefits

• You are part of an international, dynamic, and highly motivated team of people who have proven to make things happen • With your work, you accelerate the "energy transition" and hence have a direct impact on our climate • Work with and learn from other super-smart colleagues • You will enjoy direct contact with core decision-makers • You will enjoy the best chances of entering full-time in one of Europe’s most thriving scaleups • You work remotely (Germany-wide), with offices in Hamburg, Berlin or Munich • Create a healthy balance alongside your work and enjoy all the benefits of the EGYM Wellpass • Benefits and discounts are yours with Futurebens • Whether city bike or e-bike - be flexible with our job bike leasing and do something good for the environment at the same time

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