How to apply for Senior Product Manager - ARR & Subscriptions (m/f/d)

About 1KOMMA5°

1KOMMA5° builds a virtual power plant that connects solar, batteries, heat pumps, and e-mobility to the electricity market in real time. The company employs over 3,000 people across more than 80 locations, from Finland to Australia, and aims to move 1.5 million households to renewable energy by 2030. The product and tech team builds Heartbeat AI, the software layer that controls this integrated energy system.

About the role

This senior product manager owns the subscription platform and the customer experience behind recurring revenue. You manage the full path from first booking step to contract and activation for products like Heartbeat AI with Dynamic Pulse, PV and battery service contracts, and heat pump maintenance contracts. The role is remote and full-time.

A typical day

A typical day likely involves working with engineering and design on the signup, contract, or activation flow for one of the subscription products, and aligning with commercial or field teams on how contracts and pricing reach customers. Because the role is remote and the company spans many locations, much of the day is spent in written and video communication across time zones. To confirm the actual rhythm, ask in the interview how the product and tech team structures its week.

Who 1KOMMA5° is looking for

• Has senior product management experience with subscription, billing, or recurring-revenue products, including checkout, contract, and activation flows.
• Has worked on customer-facing platforms where signup, pricing, and service contracts are core to the business model.
• Can operate across product and engineering in a remote, distributed setup and communicate clearly in English.
• Is interested in energy, hardware-plus-software systems, or virtual power plants, or is willing to learn the domain quickly.

Tips for this application

• In your CV, lead with subscription or recurring-revenue product work: name the specific flows you owned (booking, contract, activation) and the metrics that changed.
• Reference 1KOMMA5°'s actual products by name — Heartbeat AI, Dynamic Pulse, PV and battery service contracts, heat pump maintenance contracts — to show you read the job description closely.
• Because the role is remote, state clearly in your application how you have managed product work across distributed teams and time zones.
• Use the German-style (m/f/d) format as a signal that you are comfortable with European hiring norms; keep your application in English unless the posting says otherwise.
• Connect your product decisions to the company's stated goal of 1.5 million households by 2030, but do it with concrete examples, not slogans.

What to cover in your cover letter

Describe a subscription or recurring-revenue product you owned end to end, from first booking step to contract and activation. Explain how you worked with engineering, design, and commercial teams on pricing, checkout, or contract flows. Show why energy and virtual power plants interest you, referencing Heartbeat AI or the 1.5 million household target. State how you run product work in a remote, distributed organisation.

Research before applying

• Read how 1KOMMA5° describes Heartbeat AI and its virtual power plant, and note how the subscription products fit into the overall system.
• Look up Dynamic Pulse and what it does for customers, since it is named as a key subscription in the role.
• Check 1KOMMA5°'s locations and markets (Finland to Australia) to understand the scale and regional differences the subscription platform must handle.
• Find public information on the company's product and tech team to understand how product management is organised before you apply.

Likely interview topics

Based on the job description, expect questions about:

• How you would design the end-to-end signup, contract, and activation flow for a subscription like Heartbeat AI with Dynamic Pulse.
• How you have handled pricing, billing, or contract changes in a subscription product and what trade-offs you made.
• How you prioritise between customer experience improvements and commercial targets for recurring revenue.
• How you work with hardware, installation, or field-service teams when the product spans physical systems and software.
• How you measure success for subscription products — activation, retention, churn, or expansion — and which metrics you would track here.

Common mistakes to avoid

• Applying with a generic product management CV that does not mention subscriptions, recurring revenue, or contract and activation flows.
• Ignoring the energy domain and treating this as a standard SaaS subscription role without referencing Heartbeat AI, Dynamic Pulse, or the virtual power plant.
• Sending a cover letter full of climate slogans without concrete examples of products you have shipped and the results you achieved.