[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fyvNHICqOCTpO_v9TneAZG1pUyowCjslDDLjIJmYP13Q":3},{"company":4,"total":9,"remoteCount":10,"salaryMin":7,"salaryMax":7,"topCategories":11,"topCountries":20,"jobs":26},{"slug":5,"name":6,"logo":7,"variants":8},"1komma5","1KOMMA5˚",null,[6],5,0,[12,15,18],{"name":13,"count":14},"Engineering",3,{"name":16,"count":17},"Marketing",1,{"name":19,"count":17},"Finance",[21,24],{"name":22,"count":23},"Hamburg",4,{"name":25,"count":17},"Berlin",[27,44,52,61,71],{"id":28,"slug":29,"title":30,"company":6,"company_logo_url":7,"category":16,"subcategory":7,"job_type":31,"experience_level":7,"remote_type":32,"country":25,"city":7,"language":33,"salary_min":7,"salary_max":7,"salary_currency":34,"salary_type":7,"skills":35,"benefits":7,"description_short":37,"source_url":38,"apply_url":38,"source_site":39,"is_active":40,"is_featured":41,"views_count":10,"click_count":10,"posted_at":42,"collected_at":43,"expires_at":7,"visa_sponsorship":41,"company_size":7},54202,"werkstudent-in-growth-marketing-m-w-d-1komma5-76dd704ab41d","Werkstudent:in Growth Marketing (m\u002Fw\u002Fd)","full-time","onsite","en","EUR",[36],"Marketing and Communication","\u003Ch2>1KOMMA5°\u003C\u002Fh2>\n\u003Cp>Bei \u003Cstrong>1KOMMA5°\u003C\u002Fstrong> verfolgen wir eine Vision: \u003Cstrong>Living on wind and sunlight forever for free\u003C\u002Fstrong>. Dafür bauen wir mit Heartbeat AI das Energiesystem der Zukunft. Bist du dabei?\u003Cbr>\nWir bringen regionales Handwerk und skalierbare Software zusammen: Solar, Speicher, Wärmepumpe und E-Mobilität denken wir nicht einzeln, sondern steuern sie als intelligentes, integriertes Gesamtsystem in unserem virtuellen Kraftwerk. Direkt verbunden mit dem Strommarkt – in Echtzeit, vollautomatisiert. So wird Energie dann genutzt, wenn sie erneuerbar verfügbar und besonders günstig ist. Bis 2030 wollen wir 1,5 Millionen Haushalte auf erneuerbare Energien umstellen. Über 3.000 Menschen arbeiten jeden Tag daran, an mehr als 80 Standorten weltweit, von Finnland bis Australien.\u003C\u002Fp>\n\u003Cp>\u003Cstrong>Du willst Verantwortung übernehmen und Lösungen bauen, die wirklich zählen? Bewirb dich jetzt und gestalte mit uns die Energiewelt von morgen.\u003C\u002Fstrong>\u003C\u002Fp>\n\u003Ch2>Deine Position\u003C\u002Fh2>\n\u003Cul>\n\u003Cli>\u003Cstrong>After Sales und Kundenbetreuung:\u003C\u002Fstrong> Deine zentrale Aufgabe sind sogenannte „Happy Calls“ an unsere Bestandskund:innen mit bereits installierten Systemen. Du kontaktierst Kund:innen aktiv telefonisch, erhebst systematisch die Zufriedenheit und sammelst strukturiertes Feedback zur Verbesserung unserer Leistungen. Die gewonnenen Erkenntnisse fließen direkt in die Optimierung unserer After-Sales-Prozesse sowie in Marketingkampagnen ein\u003C\u002Fli>\n\u003Cli>\u003Cstrong>Events und Kundenkontakt:\u003C\u002Fstrong> Du planst und begleitest kleine lokale Events und stehst dort im persönlichen Austausch mit Kund:innen. Dabei bringst du eigene Ideen zur Weiterentwicklung von Kundenansprache und Kampagnen ein\u003C\u002Fli>\n\u003Cli>\u003Cstrong>Zusammenarbeit:\u003C\u002Fstrong> Du arbeitest standortübergreifend mit über 50 Standorten deutschlandweit zusammen und erhältst umfassende Einblicke in ein dynamisch wachsendes Unternehmen\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Ch2>Dein Profil\u003C\u002Fh2>\n\u003Cul>\n\u003Cli>Du bist noch mindestens zwei Semester an einer deutschen Hochschule immatrikuliert und kannst uns ab sofort 15-20 Stunden pro Woche unterstützen, idealerweise in Berlin\u003C\u002Fli>\n\u003Cli>\u003Cstrong>Sprachkenntnisse:\u003C\u002Fstrong> Fließende Deutschkenntnisse auf Muttersprachen-Niveau sind für die Kommunikation mit unseren Kund:innen erforderlich\u003C\u002Fli>\n\u003Cli>\u003Cstrong>Stärke\u003C\u002Fstrong>: Du bist sehr kommunikativ, überzeugungsstark und hast keine Scheu vor Telefonaten, Zahlen und Analysen\u003C\u002Fli>\n\u003Cli>\u003Cstrong>Eigeninitiative:\u003C\u002Fstrong> Du packst gerne an, übernimmst Verantwortung, arbeitest selbstständig und willst aktiv dazu beitragen, die Energiewende voranzutreiben\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Ch2>Benefits\u003C\u002Fh2>\n\u003Cul>\n\u003Cli>Du hast die Möglichkeit in unseren \u003Cstrong>brandneuen\u003C\u002Fstrong> Büros in der \u003Cstrong>Hamburger Innenstadt und\u003C\u002Fstrong> \u003Cstrong>Berlin\u003C\u002Fstrong> zu arbeiten und \u003Cstrong>hybrid\u003C\u002Fstrong>\u003C\u002Fli>\n\u003Cli>\u003Cstrong>Flexible Arbeitszeiten\u003C\u002Fstrong>, die sich gut mit deinem Studium vereinbaren lassen\u003C\u002Fli>\n\u003Cli>Nutze dein \u003Cstrong>technisches Equipment\u003C\u002Fstrong> auch abseits der Arbeit in deiner \u003Cstrong>Freizeit\u003C\u002Fstrong>\u003C\u002Fli>\n\u003Cli>Viel \u003Cstrong>Eigenverantwortung\u003C\u002Fstrong> und die Möglichkeit \u003Cstrong>eigene Themen\u003C\u002Fstrong> zu übernehmen\u003C\u002Fli>\n\u003Cli>Du bewegst dich in flachen Hierarchien mit viel \u003Cstrong>Entwicklungspotenzi\u003C\u002Fstrong> \u003Cstrong>al\u003C\u002Fstrong>\u003C\u002Fli>\n\u003Cli>Mit deiner Arbeit unterstützt du den Megatrend \u003Cstrong>“Energie- und Mobilitätswende”\u003C\u002Fstrong> und leistest einen \u003Cstrong>konkreten Beitrag\u003C\u002Fstrong> zum \u003Cstrong>nachhaltigen\u003C\u002Fstrong> Umbau unserer Energie-Infrastruktur\u003C\u002Fli>\n\u003Cli>Sei aktiv und nutze das Angebot von über 7.600 Sportpartnern mit dem \u003Cstrong>EGYM-Wellpass\u003C\u002Fstrong>\u003C\u002Fli>\n\u003Cli>Profitiere von \u003Cstrong>Benefits & Rabatten\u003C\u002Fstrong> durch Futurebens\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Cp>Find \u003Ca href=\"https:\u002F\u002Fwww.arbeitnow.com\u002F\">Jobs in Germany\u003C\u002Fa> on Arbeitnow\u003C\u002Fp>","https:\u002F\u002Fwww.arbeitnow.com\u002Fjobs\u002Fcompanies\u002F1komma50\u002Fwerkstudentin-growth-marketing-berlin-273466","arbeitnow",true,false,"2026-05-22T14:00:32+00:00","2026-05-23T11:06:46.453837+00:00",{"id":45,"slug":46,"title":47,"company":6,"company_logo_url":7,"category":19,"subcategory":7,"job_type":31,"experience_level":7,"remote_type":32,"country":22,"city":7,"language":33,"salary_min":7,"salary_max":7,"salary_currency":34,"salary_type":7,"skills":48,"benefits":7,"description_short":49,"source_url":50,"apply_url":50,"source_site":39,"is_active":40,"is_featured":41,"views_count":10,"click_count":10,"posted_at":51,"collected_at":43,"expires_at":7,"visa_sponsorship":41,"company_size":7},54230,"controller-energy-markets-m-f-d-1komma5-8fcdd3877d6d","Controller - Energy Markets (m\u002Ff\u002Fd)",[19],"\u003Ch2>1KOMMA5°\u003C\u002Fh2>\n\u003Cp>At \u003Cstrong>1KOMMA5°\u003C\u002Fstrong>, we pursue a clear vision: \u003Cstrong>Living on wind and sunlight forever for free\u003C\u002Fstrong>. To make this a reality, we are building the energy system of the future with Heartbeat AI. Want to be part of it?\u003C\u002Fp>\n\u003Cp>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.\u003C\u002Fp>\n\u003Cp>\u003Cstrong>Want to take responsibility and build solutions that truly matter? Apply now and help us shape the energy world of tomorrow.\u003C\u002Fstrong>\u003C\u002Fp>\n\u003Cp>Learn about our Product & Tech team!\u003C\u002Fp>\n\u003Ch2>Deine Position\u003C\u002Fh2>\n\u003Cp>As our (Junior) Controller (m\u002Ff\u002Fd), you work directly with the CFO of Heartbeat AI GmbH and at the heart of our financial operations. You are joining a fast-growing energy tech company at an exciting stage where the financial foundations you help build today will directly shape how the business scales tomorrow. In your role you will:\u003C\u002Fp>\n\u003Cul>\n\u003Cli>\u003Cstrong>Own the financial heartbeat of the business:\u003C\u002Fstrong> You take responsibility for our monthly closing process (Monatsabschluss) and internal financial reporting (P&L, Cost Center Reports, Forecasts) - ensuring accurate, timely, and structured financial reporting across the company\u003C\u002Fli>\n\u003Cli>\u003Cstrong>Turn numbers into decisions:\u003C\u002Fstrong> You build and maintain financial reports that give our leadership team a clear picture of costs, revenues, and business performance and you are not shy about flagging what the numbers are telling us\u003C\u002Fli>\n\u003Cli>\u003Cstrong>Grow into a strategic finance partner:\u003C\u002Fstrong> Beyond the numbers, you will increasingly contribute to budgeting, forecasting, and financial planning working closely with the CFO to strengthen our financial infrastructure as the company scales\u003C\u002Fli>\n\u003Cli>\u003Cstrong>Make Excel your instrument:\u003C\u002Fstrong> You work with structured, well-designed spreadsheet models every day building, improving, and maintaining them to a high standard\u003C\u002Fli>\n\u003Cli>\u003Cstrong>Apply AI to make your life easer:\u003C\u002Fstrong> You are keen to learn directly from an AI driven tech environment and dive into a variety of AI tools (i.e. Claude) to boost your and your teams efficiency in reportings and forecasting purposes\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Ch2>Dein Profil\u003C\u002Fh2>\n\u003Cul>\n\u003Cli>You have hands-on experience in controlling in the context of energy markets - whether cost, revenue, or sales controlling, what matters is that you know how to work with financial data and turn it into structured, reliable reporting\u003C\u002Fli>\n\u003Cli>You have completed a degree in Business Administration, Finance, or a related field - a Master's degree is not required\u003C\u002Fli>\n\u003Cli>You are highly proficient in Excel and enjoy working in it daily. Clean model structure, well-organized sheets, and solid formula work are second nature to you\u003C\u002Fli>\n\u003Cli>You have excellent language skills in both German and English (C1\u002FC2)\u003C\u002Fli>\n\u003Cli>You are detail-oriented and structured, with a strong sense of ownership over the numbers you are responsible for\u003C\u002Fli>\n\u003Cli>Above all, you are eager to learn: you see joining a fast-growing tech company as an opportunity to grow fast, take on real responsibility, and build something meaningful from the ground up\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Ch2>Benefits\u003C\u002Fh2>\n\u003Cul>\n\u003Cli>You are part of an international, dynamic, and highly motivated team of people who have proven to make things happen\u003C\u002Fli>\n\u003Cli>With your work, you accelerate the \"energy transition\" and hence have a direct impact on our climate\u003C\u002Fli>\n\u003Cli>Work with and learn from other super-smart colleagues\u003C\u002Fli>\n\u003Cli>You will enjoy direct contact with core decision-makers\u003C\u002Fli>\n\u003Cli>You will enjoy the best chances of entering full-time in one of Europe’s most thriving scaleups\u003C\u002Fli>\n\u003Cli>You work remotely (Germany-wide), with offices in Hamburg, Berlin or Munich\u003C\u002Fli>\n\u003Cli>Create a healthy balance alongside your work and enjoy all the benefits of the EGYM Wellpass\u003C\u002Fli>\n\u003Cli>Benefits and discounts are yours with Futurebens\u003C\u002Fli>\n\u003Cli>Whether city bike or e-bike - be flexible with our job bike leasing and do something good for the environment at the same time\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Cp>Find more \u003Ca href=\"https:\u002F\u002Fwww.arbeitnow.com\u002Fenglish-speaking-jobs\">English Speaking Jobs in Germany\u003C\u002Fa> on Arbeitnow\u003C\u002Fp>","https:\u002F\u002Fwww.arbeitnow.com\u002Fjobs\u002Fcompanies\u002F1komma50\u002Fcontroller-energy-markets-hamburg-92438","2026-05-22T11:30:28+00:00",{"id":53,"slug":54,"title":55,"company":6,"company_logo_url":7,"category":13,"subcategory":7,"job_type":31,"experience_level":7,"remote_type":32,"country":22,"city":7,"language":33,"salary_min":7,"salary_max":7,"salary_currency":34,"salary_type":7,"skills":56,"benefits":7,"description_short":58,"source_url":59,"apply_url":59,"source_site":39,"is_active":40,"is_featured":41,"views_count":10,"click_count":10,"posted_at":60,"collected_at":43,"expires_at":7,"visa_sponsorship":41,"company_size":7},54251,"working-student-data-science-forecasting-m-f-d-1komma5-eae70093172f","Working Student Data Science Forecasting (m\u002Ff\u002Fd)",[57],"Software Development","\u003Ch2>1KOMMA5°\u003C\u002Fh2>\n\u003Cp>At \u003Cstrong>1KOMMA5°\u003C\u002Fstrong>, we pursue a clear vision: \u003Cstrong>Living on wind and sunlight forever for free\u003C\u002Fstrong>. 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.\u003C\u002Fp>\n\u003Cp>\u003Cstrong>Want to take responsibility and build solutions that truly matter? Apply now and help us shape the energy world of tomorrow.\u003C\u002Fstrong>\u003C\u002Fp>\n\u003Cp>Learn about our Product & Tech team!\u003C\u002Fp>\n\u003Ch2>Deine Position\u003C\u002Fh2>\n\u003Cp>As a Werkstudent or Intern in Data Science Forecasting, you will join our Team to help shape the future of decentralized Energy Management Systems (EMS). Your core mission will be supporting the development, training, and testing of our time-series forecasting models (PV generation, household load, heat pump consumption, and EV charging).\u003C\u002Fp>\n\u003Cp>This role offers a unique learning ground: you will get hands-on experience working on data and ML pipelines and projects running in live production. You will join us during a period of rapid innovation, gaining the opportunity to actively contribute to our agentic AI workflows aimed at accelerating engineering productivity. This position is ideal for a student who wants to bridge the gap between academic data science theory and real-world, cloud-scale clean energy operations.\u003C\u002Fp>\n\u003Ch2>Key Responsibilities\u003C\u002Fh2>\n\u003Cul>\n\u003Cli>Time Series & ML Engineering: Support the team in building, improving, and retraining machine learning forecasting models\u003C\u002Fli>\n\u003Cli>Production Operations: Actively assist in monitoring, updating, and troubleshooting forecasting models and pipelines operating in production environments\u003C\u002Fli>\n\u003Cli>Data Pipelines & Cleansing: Help build and maintain robust data transformation pipelines using SQLMesh and BigQuery to pre-process large streams of data\u003C\u002Fli>\n\u003Cli>Simulation & Validation: Use our internal simulation framework to backtest forecast models and analyze how forecast errors directly impact our high-level EMS optimization yield\u003C\u002Fli>\n\u003Cli>Agentic AI & Workflow Automation: Assist in writing, structuring, and testing behaviors for autonomous AI agents to help automate workflows\u003C\u002Fli>\n\u003Cli>Documentation & Team Sync: Help maintain clean, clear technical documentation in Notion and collaborate with Optimization and Data Engineers during sprint cycles\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Ch2>Dein Profil\u003C\u002Fh2>\n\u003Cul>\n\u003Cli>Current Studies: Enrolled in a Bachelor’s or Master’s program in Data Science, Computer Science, Statistics, Mathematics, Physics, or an equivalent quantitative field\u003C\u002Fli>\n\u003Cli>Python Foundations: Solid coding skills in Python and familiarity with core data science libraries (pandas, numpy, scikit-learn)\u003C\u002Fli>\n\u003Cli>ML Domain Knowledge: Solid theoretical understanding of machine learning principles, statistical analysis, model architectures (e.g., regression, tree-based ensembles), and key evaluation metrics\u003C\u002Fli>\n\u003Cli>Analytical Mindset: Enthusiastic about troubleshooting data quality bugs and validating model outcomes using quantitative metrics\u003C\u002Fli>\n\u003Cli>Team & Agile Mindset: You have a team-oriented mindset, enjoy working in agile environments (such as sprints), and deeply value close, transparent collaboration with your teammates\u003C\u002Fli>\n\u003Cli>Domain Interest: A genuine interest in renewable energy, battery storage systems, smart grids, or electricity markets\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Ch2>Bonus points for:\u003C\u002Fh2>\n\u003Cul>\n\u003Cli>First touchpoints working with cloud-based infrastructure (e.g. GCP, AWS, Azure), especially containerized workflows and data warehouse solutions\u003C\u002Fli>\n\u003Cli>SQL Literacy: Understanding of relational databases and confidence writing SQL queries for data extraction, manipulation, and aggregation.\u003C\u002Fli>\n\u003Cli>hands-on experience using generative AI tools, prompt engineering, or configuring AI coding assistants\u003C\u002Fli>\n\u003Cli>Initial experience with data pipeline tools like SQLMesh or dbt.\u003C\u002Fli>\n\u003Cli>Basic understanding of visualization tools like Grafana or Looker.\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Ch2>Benefits\u003C\u002Fh2>\n\u003Cul>\n\u003Cli>You are part of an international, dynamic, and highly motivated team of people who have proven to make things happen\u003C\u002Fli>\n\u003Cli>With your work, you accelerate the \"energy transition\" and hence have a direct impact on our climate\u003C\u002Fli>\n\u003Cli>Work with and learn from other super-smart colleagues\u003C\u002Fli>\n\u003Cli>You will enjoy direct contact with core decision-makers\u003C\u002Fli>\n\u003Cli>You will enjoy the best chances of entering in one of Europe’s most thriving scaleups\u003C\u002Fli>\n\u003Cli>You work remotely (Germany-wide), with offices in Hamburg, Berlin or Munich\u003C\u002Fli>\n\u003Cli>Create a healthy balance alongside your work and enjoy all the benefits of the EGYM Wellpass\u003C\u002Fli>\n\u003Cli>Benefits and discounts are yours with Futurebens\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Cp>Find \u003Ca href=\"https:\u002F\u002Fwww.arbeitnow.com\u002F\">Jobs in Germany\u003C\u002Fa> on Arbeitnow\u003C\u002Fp>","https:\u002F\u002Fwww.arbeitnow.com\u002Fjobs\u002Fcompanies\u002F1komma50\u002Fworking-student-data-science-forecasting-hamburg-498049","2026-05-22T10:00:45+00:00",{"id":62,"slug":63,"title":64,"company":6,"company_logo_url":7,"category":13,"subcategory":7,"job_type":31,"experience_level":65,"remote_type":32,"country":22,"city":7,"language":33,"salary_min":7,"salary_max":7,"salary_currency":34,"salary_type":7,"skills":66,"benefits":7,"description_short":67,"source_url":68,"apply_url":68,"source_site":39,"is_active":40,"is_featured":41,"views_count":10,"click_count":10,"posted_at":69,"collected_at":70,"expires_at":7,"visa_sponsorship":41,"company_size":7},2750,"senior-product-engineer-m-f-d-1komma5-0dbe3868679a","(Senior) Product Engineer (m\u002Ff\u002Fd)","senior",[57],"1KOMMA5° At 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,…","https:\u002F\u002Fwww.arbeitnow.com\u002Fjobs\u002Fcompanies\u002F1komma50\u002Fsenior-product-engineer-hamburg-256034","2026-05-13T15:30:45+00:00","2026-05-15T16:15:07.187349+00:00",{"id":72,"slug":73,"title":74,"company":6,"company_logo_url":7,"category":13,"subcategory":7,"job_type":31,"experience_level":75,"remote_type":32,"country":22,"city":7,"language":33,"salary_min":7,"salary_max":7,"salary_currency":34,"salary_type":7,"skills":76,"benefits":7,"description_short":67,"source_url":77,"apply_url":77,"source_site":39,"is_active":40,"is_featured":41,"views_count":10,"click_count":10,"posted_at":78,"collected_at":70,"expires_at":7,"visa_sponsorship":41,"company_size":7},2791,"head-of-go-to-market-heartbeat-ai-m-f-d-1komma5-84412ce32c31","Head of Go to Market - Heartbeat AI (m\u002Ff\u002Fd)","lead",[57],"https:\u002F\u002Fwww.arbeitnow.com\u002Fjobs\u002Fcompanies\u002F1komma50\u002Fhead-of-go-to-market-heartbeat-ai-hamburg-235136","2026-05-13T13:30:33+00:00"]