Staff Engineer, 1Komma5°
Heartbeat AI
Carbon-neutral infrastructure for homes
Be an early applicant
Carbon-neutral infrastructure for homes
1001+ employees
Be an early applicant
1001+ employees
Company mission
To bring the technologies that will contribute to the energy transition to people efficiently and cheaply.
Role
Who you are
- AI-assisted development with Cursor and agentic coding workflows
- Cloud & Infra: Google Cloud Platform, GKE (Kubernetes), Cloud Run, Terraform/IaC, Vercel
- Messaging & IoT: Eclipse Hono, MQTT, Mender
- Data & BI: PostgreSQL, BigQuery, SQLMesh, Looker
- Observability: Datadog, OpenTelemetry
- Languages: TypeScript (Nest.js, Next.js), Java, Go, Flutter
- DevOps: CI/CD pipelines (GitHub Actions)
- Linear, Notion, Figma, Miro
- Extensive hands-on experience in software development with multiple general-purpose programming languages for a minimum of 5 years
- A proven track record of architecting scalable and secure systems, demonstrating a strong commitment to quality
- Extensive experience in designing and implementing APIs that enable seamless integration and system communication
- An agile and result-oriented mindset, with a strong emphasis on collaboration and teamwork
- Experience communicating with stakeholders in business terms and understanding the technical implications of their requirements
- Experience driving technical alignment within a team in fast-paced environments, including making and following through on critical technical decisions
- Experience designing systems and APIs for agent consumption, with structured errors and clear contracts that let agents self-correct
- Capability to guide an engineering team through the shift to agentic engineering, reshaping workflows so agents execute safely while humans stay accountable for every outcome
- Experience architecting AI/ML-driven or data-intensive systems (e.g. forecasting, real-time data pipelines), ideally in an energy or IoT context
- Strong verbal and written communication skills in English, with proficiency in German considered a plus
What the job involves
- Own technical direction across Heartbeat AI's engineering domain (Mobile Apps, Energy Data, IoT Platform, and beyond), keeping architecture aligned with product direction
- Accountable for consistent execution of technical decisions within your domain, setting clear direction and holding the team accountable for implementation
- Set the technical bar for the team, stepping into the hardest problems yourself rather than just directing others
- Translate business and product requirements into technical solutions
- Mentor and challenge engineers within Heartbeat AI to accelerate their growth
- Build a high-performing engineering culture within the Heartbeat AI team
- Embed security and reliability as direct customer value
- Architect our systems and APIs so AI agents operate as first-class users with machine-readable contracts and structured errors that let agents self-correct
- Drive Heartbeat AI's shift to agentic engineering, reshaping how the team works so agents execute safely while humans stay accountable
- Own the architecture of the AI systems that power the product itself, from our EMS to our energy tariff
- Reporting directly to the CTO
Our take
As individuals and communities look to lower the carbon footprints of their buildings and homes, there is a need to access products and infrastructure that will enable them to adopt more eco-friendly energy practices. 1KOMMA5° is building a "one-stop shop" for sales, installation and services related to solar, power storage, and EV charging infrastructure, simplifying the energy transition for carbon-conscious people.
1KOMMA5°'s offerings include the energy manager "Heartbeat", a free-to-use platform that can be accessed on mobile, and helps users to make the most out of their self-generated electricity. The company is also building a group of experienced specialist companies that it aims to support in aiding the clean energy transition, not only by investing in them but by granting them access to its operational experience to help them further develop.
A 2024 surge in revenue and profitability (leading to the company's unicorn status in 2023) underscores the market's confidence in 1KOMMA5°'s transformative potential. With a clear trajectory towards exponential growth, fueled by ambitious revenue targets and strategic investments in product development, the company is poised to redefine the energy sector.
Freddie
Company Specialist at Welcome to the Jungle
Insights
248% employee growth in 12 months
Company
Funding (2 rounds)
Jun 2020
$3.3m
SEED
Jul 2018
$1.1m
SEED
Total funding: $4.4m
Company benefits
- You have the opportunity to work in our brand new offices in downtown Hamburg and Berlin and/or remotely
- Use your technical equipment outside of work in your free time
- You are part of a fast-growing company with a lot of development potential , where you can build something independently and feel your impact
- Work in flat hierarchies , take on responsibility during your induction and work directly with parts of the management
- With your work, you support the megatrend “energy and mobility transition” and make a concrete contribution to the sustainable restructuring of our energy infrastructure
- Be active and use the offers of over 7,600 sports partners with the EGYM Wellpass
Company HQ
Hamburg-Neustadt, Hamburg, Germany
Leadership
Philipp Schröder
(Co-Founder & CEO)Co-founder and former CEO of CAPinside.com. Has previously worked as Managing Director at sonnen, and Country Director at Tesla.
Michael Hinderer
(Co-Founder & Chairman of the Board)Senior Advisory Partner at Castik Capital. Co-founded GCA Altium, and was a Founding Partner for Corporate Finance Partners Holding and Apax.
Philip Liesenfeld
(Co-Founder & COO)Was Managing Director at wiwi Fondsmanagement. Worked in several roles at juwi Group including Regional Manager and Project Manager.
Jannik Schall
(Co-Founder & CPO)Former VP of Global Product at sonnen. Worked in Sales & Marketing at Tesla.
Micha Grueber
(Co-Founder & CFO)Former CFO at CAPinside. Previously Commercial Manager at SABIO.
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