Staff Engineer - Virtual Assembly Line (m/f/d)

1KOMMA5At 1KOMMA5, we pursue a clear vision: Living on wind and sunlight forever for free. To make this a reality, we are building the energy system of the future with Heartbeat AI. Want to be part of it?We bring together regional craftsmanship and scalable software: We don't think of solar, batteries, heat pumps, and e-mobility as isolated components, but control them as an intelligent, integrated overall system in our virtual power plant. Directly connected to the electricity market – in real time, fully automated. This way, energy is used when it is available from renewables and particularly cost-effective. By 2030, our goal is to transition 1.5 million households to renewable energies. Over 3,000 people are working towards this every day, at more than 80 locations worldwide, from Finland to Australia.Want to take responsibility and build solutions that truly matter? Apply now and help us shape the energy world of tomorrow.Learn more about our Product & Tech team!Your missionYou'll help shape the Virtual Assembly Line (VAL) team, which builds and scales our growth and operations systems: MarTech, CRM, Payment, Fulfillment and Installation, so we can scale globally with maximum efficiency and quality.Own technical direction across VAL's growth and operations engineering domain, keeping architecture aligned with product direction, and hold the team accountable for consistent execution of those decisionsSet the technical bar for the teams, stepping into the hardest problems yourself rather than just directing othersTranslate business and product requirements into technical solutions that scale as we digitize the installation branches furtherArchitect our systems and APIs so AI agents operate as first-class users with machine-readable contractsDrive VAL's shift to agentic engineering, reshaping how the team works so agents execute safely while humans stay accountableMentor and challenge engineers within VAL to accelerate their growthBuild a high-performing engineering culture within the VAL teamEmbed security and reliability as direct customer valueTechnologies you will work with include:AI-assisted development with Cursor / Claude and agentic coding workflowsLanguages: TypeScript (React, Nest.js, Next.js, VueJS), Ruby on Rails, FlutterCloud & Infra: Google Cloud Platform, GKE (Kubernetes), Cloud Run, Terraform/IaC, Vercel, DatadogData & BI: PostgreSQL, BigQuery, SQLMesh, LookerLinear, Notion, Figma, MiroYour profileExtensive hands-on experience in software development with multiple general-purpose programming languages for a minimum of 10 yearsA proven track record of architecting scalable and secure systems, demonstrating a strong commitment to qualityExtensive experience designing and implementing APIs that enable seamless integration between systems, as well as for non-human/automated consumers like AI agentsAn agile and result-oriented mindset, with a strong emphasis on collaboration and teamworkExperience communicating with stakeholders in business terms and understanding the technical implications of their requirementsExperience driving technical alignment within a team in fast-paced environments, including making and following through on critical technical decisionsTrack record of leading a team through a major workflow or tooling shift, with the judgment to know where automation (including AI agents) can run safely and where human sign-off stays mandatoryProven ability to own features end-to-end, from rough problem statement to shipped, maintained product, working closely with product managers and business stakeholders across the companyStrong verbal and written communication skills in English, with proficiency in German considered a plusBenefitsYou are part of an international, dynamic, and highly motivated team of people who have proven to make things happenWith your work, you accelerate the "energy transition" and hence have a direct impact on our climateWork with and learn from other super-smart colleaguesYou will enjoy direct contact with core decision-makersYou will enjoy the best chances of entering full-time in one of Europe’s most thriving scaleupsYou work remotely (Germany-wide), with offices in Hamburg, Berlin or MunichCreate a healthy balance alongside your work and enjoy all the benefits of the EGYM WellpassBenefits and discounts are yours with FuturebensWhether city bike or e-bike - be flexible with our job bike leasing and do something good for the environment at the same timeIndividualised opportunities for professional developmentReporting directly to the CTOAbout us"At 1KOMMA5, our vision is to accelerate CO2 neutral life for all! We created an easy one-stop-shop to buy and install solar, charging stations and heat pumps, with the purpose of liberating all European homes from the shackles of fossil fuels. With Heartbeat, we make clean energy smarter. Connecting our customers into one powerful clean energy operating system to enable flexible tariffs and to ultimately follow the rhythm of wind and sun!" - Philipp Schröder (CEO 1KOMMA5)