1KOMMA5°

Product Manager

• As a member of our Global Product Management Team for Energy Tariffs, you will play an active role in a visionary and dynamic group committed to revolutionizing the global energy sector
• Building upon our Heartbeat AI Platform, our mission is to develop energy tariff products across our core markets, take operational and commercial ownership of them, and shape new regulatory products end-to-end
• You sit at the center of product, regulation, commercial, and operations, and turn a fast-moving energy market into customer value
• Drive Your Own Initiatives: Take ownership of well-scoped topics within our energy tariff portfolio, from analysis to recommendation to implementation
• You lead your own initiatives and are accountable for their outcomes
• Contribute to Our Energy Tariff Products: Work on our dynamic electricity tariff products across core markets, driving product improvements, feature rollouts, and customer experience initiatives
• Support Regulatory Product Launches: Contribute to the launch of new products driven by regulatory change (e.g. Direktvermarktung), helping translate regulatory requirements into concrete product decisions
• Analyze & Improve Marktkommunikation Processes: Dive into our market communication workflows, identify inefficiencies, and drive initiatives that make our energy retail engine faster and more reliable
• Monitor Performance & Iterate: Leverage customer feedback, competitive analysis, and market trends. Monitor KPIs to help optimize product adoption and overall customer satisfaction
• Prepare & Present: Prepare and present findings and recommendations to relevant Product Managers and stakeholders

Internship Product Management, Energy Products & Tariffs

Procurement

• As Product Manager Procurement & Portfolio Management, you will shape one of the strategically decisive product roles within our energy retail business.
• Define how and where 1KOMMA5° procures, hedges and optimizes energy for our customer portfolio.
• Develop a clear market segmentation and continuously refine it based on portfolio characteristics, customer mix and market conditions.
• Design hedging and risk management strategies tailored to different customer portfolios.
• Perform independent analyses of procurement performance, hedging effectiveness and portfolio profitability.
• Define KPIs covering procurement costs, hedge effectiveness, portfolio risk and flexibility margin.

Senior Product Manager – Procurement & Portfolio Management

Quality Control

• You monitor and manage quality KPIs for our heat pump installations and systematically analyze the results
• From the metrics you derive targeted measures to ensure and continuously improve installation quality over the long term
• You collaborate closely with internal and external partners across the entire value chain – from the supply chain through on-site installation to service
• You plan and oversee regular quality and compliance audits to ensure adherence to all standards
• As a proactive interface, you align the expectations and interests of various stakeholders and ensure that quality-related decisions are consistently implemented

Quality Control Expert – Heat Pumps

Backend Engineer

• Own the technical integration of inverters, batteries, charging infrastructure, and heat pumps into our Heartbeat energy management system, driving projects end-to-end to deliver solutions on time.
• Ensure seamless communication and interoperability between different OEM devices.
• Implement communication protocols such as Modbus TCP, OCPP, MQTT, EEbus.
• Develop, deploy, and maintain services on our IoT gateway using Go programming.
• Diagnose network issues across LAN/WAN, VPN, firewalls, and protocols, and turn that understanding into resilient edge services.
• Conduct testing of our energy management system in our lab in Berlin.
• Collaborate with cross-functional teams to ensure software meets performance and reliability standards.
• Provide expert-level support to both internal and external stakeholders.
• Foster a culture of experiment-driven innovation within the team

Senior Software Engineer – Device Connectivity, Go

SEO Marketing

• Erstellung und Anpassung von Landing Pages in unserem Content Management System (Storyblok)
• Unterstützung bei operativen SEO-Maßnahmen wie Keyword-Recherchen, On-Page-Optimierungen und technischen SEO-Checks
• Pflege und Optimierung unserer Google Business Profile in verschiedenen Märkten
• Mitwirkung bei der Umsetzung internationaler SEO-Strategien und -Maßnahmen
• Monitoring und Reporting von SEO-relevanten KPIs

Werkstudent – Organic Search

Analyst

• Top-level quality checks: You will perform remote reviews and final approvals of acceptance protocols for heat pumps to ensure our high technical and safety standards.
• Data-driven insights: You collect and structure relevant data from installations and acceptance tests to obtain a clear picture of our performance.
• Error analyst & detective: You identify the most common sources of errors, understand their root causes, and document your findings precisely.
• Knowledge transfer & learning champion: From the documented errors you develop clear learning materials and training content so our field teams improve every day.
• Continuous improvement: You use your insights to actively improve processes, optimize workflows, and increase the efficiency of our installations.
• Interface specialist: You work closely with planning, installation, and maintenance teams to sustainably raise overall quality to a new level.

Working Student – Quality Control Analyst, Heat Pump

• You conduct remote reviews and give final approval of acceptance reports for PV systems to ensure our high technical and safety standards.
• You collect and structure relevant data from installations and acceptance checks to gain a clear picture of our performance.
• You identify the most common sources of errors, analyze their root causes, and document your findings precisely.
• Based on the documented errors, you develop clear learning content and training materials so our field teams improve every day.
• You use your insights to actively improve processes, optimize workflows, and increase the efficiency of our installations.
• You work closely with planning, installation, and maintenance teams to sustainably elevate overall quality.

Working Student – Quality Control Analyst, Photovoltaics

Growth Marketing

• Aufbau und Führung der Public-Sector-Growth-Unit für Kommunen, Länder, Bundesinstitutionen und öffentliche Immobilienorganisationen
• Entwicklung einer strukturierten Go-to-Market-Strategie für öffentliche Gebäudebestände, Landesliegenschaften, kommunale Immobiliengesellschaften und Bundesportfolios
• Identifikation, Priorisierung und Entwicklung strategisch relevanter Zielgruppen im öffentlichen Sektor
• Aufbau und Pflege professioneller Beziehungen zu politischen, administrativen und institutionellen Entscheidern im öffentlichen Sektor
• Positionierung von 1KOMMA5° als kompetenter Ansprechpartner für PV, Speicher, Energiemanagement, On-Site-PPA und portfoliofähige Roll-out-Modelle
• Organisation und Begleitung von Fachgesprächen, Informationsformaten, Roundtables und Marktdialogen außerhalb laufender Vergabeverfahren
• Vermittlung von Markt-, Technologie- und Umsetzungswissen für öffentliche Auftraggeber, Energieagenturen, Landesbetriebe, Kommunen und öffentliche Immobiliengesellschaften
• Entwicklung neutraler und allgemein verwendbarer Informationsunterlagen, Onepager, Positionspapiere und Management-Briefings
• Übersetzung technischer und wirtschaftlicher Lösungen in politische, haushalterische und verwaltungsnahe Entscheidungslogiken
• Erklärung möglicher Beschaffungs- und Betreibermodelle im Rahmen zulässiger Markterkundungen und wettbewerbsoffener Informationsformate
• Aufbau eines Partnernetzwerks aus Banken, technischen Gutachtern, Vergaberechtsexperten, Energieagenturen und institutionellen Stakeholdern
• Unterstützung bei der Entwicklung allgemein nutzbarer Markt- und Beschaffungsimpulse zu funktionalen Anforderungen, ohne exklusive Erstellung konkreter Vergabeunterlagen für öffentliche Auftraggeber
• Aufbau einer belastbaren Public-Sector-Pipeline mit Fokus auf großvolumige Portfoliochancen
• Monitoring relevanter politischer, regulatorischer, haushalterischer und vergaberechtlicher Entwicklungen
• Enge Abstimmung mit internen Teams aus Geschäftsführung, Finance, Legal, Engineering, Operations, Marketing und Bid Management
• Sicherstellung einer klaren Trennung zwischen allgemeinem Marktdialog, strategischer Öffentlichkeitsarbeit und konkreter Angebotsbearbeitung

Head of Public Sector Growth – 1KOMMA5° Commercial Solutions GmbH

Engineering Manager

• Provide technical leadership, guidance, and expertise across a platform team and be part of the hiring process to find the best talents
• Be an excellent people manager and support your team members in their professional and personal development
• Help your team members to create, implement, evaluate, deploy, sustain, and enhance software solutions for complex and undefined problems
• Foster a culture of experiment-driven innovation within the team
• Promote teamwork and successful project execution
• Improve developer satisfaction by constantly avoiding/reducing tech-debt, automating as much as possible and documenting decisions, runbooks etc.

Engineering Manager – Heartbeat AI

Principal

• Define the operational backbone of our energy products (tariffs, flexibility services)
• Ensure products are designed to handle mass volumes smoothly from the start, preventing operational bottlenecks before they occur
• Act as the translator between law and product/tech, converting complex regulatory frameworks into clear logical requirements for Product Owners and Engineering
• Design fully automated loops for core international utility processes (like market communication/MaKo or billing validation)
• Build the structural foundation that allows our Energy Operations teams to manage exponential growth efficiently
• Define the technical and procedural standards for how 1KOMMA5° interacts with traditional players (DSOs, TSOs)
• Partner with Product Managers during the discovery phase, identifying regulatory or process complexity upfront and designing smart, scalable workarounds

Principal Energy Process – Strategy

Full-stack Engineer

• Shape the technical direction of the Installation Manager: architecture, release quality, performance, and long-term maintainability
• Ship reliable, well-tested mobile features and help the team build a strong automated-testing and continuous-release practice
• Mentor and grow the engineers around you, sharing what you know across team boundaries (not just within your own role)
• Work closely with product, design, and backend to turn real field feedback into a better product
• Help debug the messy, interesting problems that come with hardware-connected apps in the real world

Senior Software Engineer – Mobile

Cloud Engineer

• Take ownership of our systems at the intersection of Cloud Services and residential IoT Gateways
• Operate and evolve our Kubernetes-based IoT Cloud Platform, including the deployment, scaling, and hardening of our connectivity and fleet services
• Develop and run our Eclipse Hono stack as the messaging backbone between gateways and the cloud
• Design, build and operate features around fleet management enabling the lifecycle of gateways from production line to field
• Integrate tightly with Mender to operate safe OTA rollouts across the fleet.
• Contribute to load and resilience tests to prove the platform scales and to find limits before our customers do
• Build and own the observability pipelines for the IoT Platform and turn metrics into automated monitors, alerts, and self-healing mechanisms
• Build data pipelines and BI models to turn raw data into fleet insights
• Work collaboratively with product managers, data engineers, IoT engineers, as well as cloud engineers to understand problems, support discoveries, and create solutions enabling a scalable virtual power plant
• Foster a culture of experiment-driven innovation within the team

Senior IoT Cloud Engineer

• Own conversion rate optimisation across the e-commerce funnel from first website visit to closed sale
• Define and execute the product roadmap for our martech team
• Drive experimentation and data-driven decision making
• Reduce cost and manual effort in marketing and inside sales through smarter automation and AI-powered workflows
• Evaluate and introduce new tools and platforms, balancing build versus buy decisions
• Establish product culture and ways of working in a team that has not had a dedicated PM before
• Collaborate cross-functionally with engineers, designers, and growth, marketing, and inside sales stakeholders

Senior Product Manager, Growth

Financial Planning and Analysis

• You will architect the billing, invoicing, and monetization systems behind the global energy transition — a unified internal platform.
• By designing and operating everything from invoicing and subscriptions to PSP-supported payments and reconciliations, you make sustainable energy financially sound and operationally scalable.
• The audit trails, templates, and integrations you build are what finance teams and customers rely on as we expand across markets.
• As a software engineer at 1KOMMA5°, you will take technical ownership of key systems and features, drive architectural decisions, and ensure scalability, reliability, and performance.
• You will work closely with other engineers, product managers, and stakeholders to shape our technical direction and deliver high-impact solutions.
• Beyond building solutions, you will mentor teammates, foster engineering excellence, and help take our development and deployment practices to the next level.

Senior Full-Stack Software Engineer – Financial Infrastructure, Payments

• You take a central role in our end-to-end steering proposition, turning regulatory complexity into scalable, compliant, and customer-friendly products at the intersection of regulation, product, hardware, and field operations
• Be the Expert on Smart Metering & Steering Regulation: Act as the first point of contact - internally and externally - for regulatory developments such as §14a EnWG, §9 EEG, §21 EnWG, and §118 Abs. 6 EnWG
• Interpret legal frameworks, VDE FNN requirements, BNetzA rulings, and BDEW Guidelines, and help shape the rules of tomorrow through active industry engagement
• Translate Regulation into Product Requirements: Define and prioritize development requirements for our engineering teams to ensure Heartbeat AI and connected hardware (e.g. §14a Steuerbox + Smart Meter) meets all compliance and performance standards
• Drive Hardware Strategy and Rollout: Coordinate testing and lab capacities, prepare key hardware decisions, and operationalize the rollout of intelligent metering systems and Steuerboxen across our customer segment
• Manage Service Providers and Market Partners: Own relationships with external service providers as well as DSOs and metering point operators, ensuring smooth collaboration and reliable market communication processes
• Lead Cross-Functional Projects & Monitor Performance: Take overarching project responsibility for steering initiatives, define KPIs, monitor target achievement, and derive optimization measures from data and field feedback