Senior Data Scientist - Trading (d/f/m)

Flexa

SHORT FACTS •      Location: Munich, Germany •      Employment Type: Full-Time, indefinite term •      Salary Range: € 95,000 – 115,000 per year gross, depending on seniority level •      Office First work setup •      Language Requirement: C1 Level English Your Role We are looking for a Quantitative Developer to tackle the software, data, and integration challenges across our Virtual Power Plant (VPP) ecosystem. You will drive and own the roadmap for developing algorithmic execution strategies in the German intraday power market. As our VPP infrastructure matures, you will steadily increase your focus on research on execution-price improvement and market-impact modelling. Your software-engineering work will centre on architecture design, testing, and project coordination. YOUR RESPONSIBILITIES * Contribute to the technical vision for how Flexa trades flexibility across energy markets and hardware assets, and help make it a reality * Identify new market opportunities and residential flexibility value to shape the data science roadmap and next-gen algorithms * Champion engineering rigor and best practices to foster an open, data-driven engineering culture. * Implement, deliver, and monitor well-engineered, data-driven solutions in our real-time production systems  * Be part of a cross-functional team of data scientists, software engineers, and other teams across Flexa's partner ecosystem  * Research, develop, and productionise algorithms and models that optimise financial returns from trading the flexibility of Flexa’s residential battery portfolio * Drive the delivery of complex, trading strategy projects from research to production deployment and monitoring — anticipating dependencies and resolving them early * Opportunity to guide and develop more junior colleagues through design review, code review, and structured feedback YOUR PROFILE MANDATORY REQUIREMENTS * University degree in a data-driven or analytical field (Computer Science, Mathematics, Physics, Statistics, or a related quantitative discipline) * 5+ years applied data science and/or quant experience, with significant time spent developing trading algorithms in the energy or financial sectors * Proficiency in Python and software engineering practices: testing, code quality, code review, CI/CD, monitoring, and modular code design * Cross-functional collaboration mindset across data scientists, software engineers, and partner-company stakeholders * Deep understanding of trading mechanics: price formation, market microstructure, risk, and the constraints that turn a backtest into a live strategy * Strong knowledge of probability and statistics, incl. time-series data processing, analysis, and forecasting, with a focus on streaming settings * Excellent English communication and interpersonal skills * Independent research experience, excellent analytical skills with strong attention to detail, and the ability to manage multiple tasks in a fast-paced team environment are essential. SKILLS TO SET YOU APART * Experience designing or owning real-time or near-real-time analytics workflows * Direct experience with energy trading, especially for the flexibility of battery storage systems * Expertise in designing algorithmic trading strategies and modelling market impact within intraday continuous markets * Substantial background in forecasting intraday price movements, modelling order book dynamics, and market microstructure * Experience with both Machine Learning and mathematical optimization development * Proven track record of taking models from research into reliable production on AWS (or comparable cloud) At Flexa, we are committed to diversity — of backgrounds and experiences. You don’t need 100% of the listed requirements to apply. BENEFITS *  Virtual Share Options: we offer virtual share options to all our employees * Professional Development: annual development budget of €3,000 for coachings, trainings, books, and similar * Health & Sport Subsidy: company-subsidised sports facilities membership, or Public Transportation Subsidy * Lunch/Dinner Allowance Vouchers: allowance for meals on working days as digital meal vouchers * Work Equipment: MacBook or Windows laptop, iPhone (also for private use), and an ergonomic workplace setup with company-funded access to leading AI developer tools * Regular Team Events: knowledge sessions, afterwork, sports, offsites, Halloween, Pride Month, and more A SHORT NOTE FROM YOUR FUTURE LEAD Sébastien Schikora — Chief Technology Officer Sébastien Schikora has been Chief Technology Officer at Flexa since the beginning. He was previously CTO at KONUX (2018–2022), Senior Manager at Tesla in energy storage systems (2015–2018), VP Product Development at Networked Energy Services (NES), and held Director of Product Management and other roles at Echelon Corporation for six years. Earlier in his career he worked on enterprise software at Hewlett Packard. LinkedIn profile

Flexa

SHORT FACTS * Location: Munich, Germany * Employment Type: Full-Time, indefinite term * Salary Range: € 95.000 - 115.000 per year gross depending on the seniority level * Office First work setup * Language Requirement: C1 Level English YOUR RESPONSIBILITIES * Research and develop algorithms that optimize utilization in the Virtual Power Plant through smarter aggregation, disaggregation, and dispatch * Model, implement, and iterate on real-time dispatch optimization and control problems for Flexa's residential battery portfolio * Design and run experiments to evaluate dispatch policies and attribute outcomes against forecasts and market behaviour * Take models from research into reliable production: implement, deliver, and monitor well-engineered, data-driven solutions in our real-time systems on AWS * Opportunity to guide and develop more junior colleagues through design review, code review, and structured feedback * Be part of a cross-functional team of data scientists, software engineers, and other teams across Flexa's partner ecosystem  YOUR PROFILE MANDATORY REQUIREMENTS * University degree in a data-driven or analytical field (Operations Research, Applied Mathematics, Computer Science, Physics, Energy Engineering, or similar quantitative discipline) * 5+ years industry experience in applied data science * Mathematical optimization / OR experience. Hands-on with LP/MILP and MPC-style receding-horizon methods       * Strong analytics and experimentation discipline — designing experiments and analysing results carefully, including counterfactual and regret reasoning * Energy domain background — markets, batteries, grid; understanding how the physical asset, the market, and the grid interact * Proficiency in Python and software engineering practices: testing, code quality, code review, CI/CD, monitoring, and modular code design * Proven track record of taking models from research into reliable production on AWS (or comparable cloud) * Excellent English communication and interpersonal skills * Cross-functional collaboration mindset across data scientists, software engineers, and partner-company stakeholders * Independent research experience, excellent analytical skills with strong attention to detail, and the ability to manage multiple tasks in a fast-paced team environment are essential. SKILLS TO SET YOU APART * Direct experience optimizing battery dispatch, demand response, or aggregated DER portfolios * Hardware or embedded experience, and comfort with real-time / low-latency systems  * General machine learning experience — supervised learning, model evaluation, and knowing when ML is (and isn't) the right tool alongside optimization * Control background — MPC, receding-horizon control, or state-space methods for time-coupled decision-making At Flexa, we are committed to diversity — of backgrounds and experiences. You don’t need 100% of the listed requirements to apply. BENEFITS * Virtual Share Options: We offer virtual share options to all our employees * Professional Development: Annual development budget of 3,000 € for coachings, trainings, books, etc * Health & Sport Subsidy: Company subsidised sports facilities membership or Public Transportation Subsidy: Monthly subsidy for your public transport ticket * Lunch/Dinner Allowance Vouchers: Allowance for meals on working days as digital meal vouchers * Work Equipment: MacBook, an ergonomic workplace setup, and company-funded access to leading AI development tools so you always have the best tools available * Regular Team Events: Knowledge Sessions, Afterwork, Sports, Offsites, Halloween, Pride Month, etc. A SHORT NOTE FROM YOUR FUTURE LEAD Sébastien Schikora - Chief Technology Officer Hi there! I'm Sebastien Schikora, serving as the CTO at Flexa since the beginning. My diverse career journey has provided me with a range of experiences with a deep dive in the energy industry and the functioning of the grid specifically. In the last years, I was: * CTO at KONUX from September 2018 to April 2022, where I played a pivotal role in shaping the company's tech landscape and products. * Sr. Manager at Tesla from November 2015 to July 2018, leading the development of energy storage systems and mobile apps. * Vice President of Product Development at Networked Energy Services (NES) Corporation from October 2014 to November 2015, launching a new company and product line in the grid digitalization space. * At Echelon Corporation,  I held various roles over six years, including Director of Product Management and Development in the Grid Modernization Division. * Before my endeavors in the Energy Industry I was working for Hewlett Packard in the Enterprise Software group for a little over 10 years. I'm all about pushing the boundaries of technology and driving progress in our industry. I spent the majority of my career in the Silicon Valley in California and apply a lot of the methods and drive to my workplace here in Munich.  Our team is the basis of our success, and I'm dedicated to fostering a collaborative, innovative and goal driven work environment. If you're ready to be a part of our international crew and share our vision for groundbreaking tech solutions, I encourage you to explore opportunities within our organization. Thanks for considering joining us, and I look forward to the possibility of working together to achieve remarkable things. Best regards, Sebastien Schikora

OMMAX

WEN WIR SUCHEN: * Du setzt statistische, Machine-Learning- und Generative-AI-Methoden ein, um Geschäftsprobleme zu lösen und umsetzbare Erkenntnisse zu generieren. * Du analysierst und strukturierst komplexe Datensätze und integrierst unstrukturierte Daten sowie GenAI-Ergebnisse in klare Visualisierungen und Storylines. * Du arbeitest eng mit interdisziplinären Teams und Kunden zusammen, um datengetriebene und GenAI-basierte Lösungen zu entwickeln. * Du entwickelst, testest und implementierst Modelle, einschließlich promptbasierter und LLM-gestützter Anwendungen. * Du übersetzt analytische und Generative-AI-Ergebnisse in konkrete Handlungsempfehlungen für Stakeholder. * Du unterstützt weniger erfahrene Teammitglieder und trägst zur Weiterentwicklung von Best Practices bei. WAS DU MITBRINGST: * Du verfügst über einen Bachelor- oder Masterabschluss in einem quantitativen Bereich wie Data Science, Informatik, Mathematik oder Ingenieurwissenschaften. * Du hast 2–6 Jahre Erfahrung in Data Science, Machine Learning oder Advanced Analytics, idealerweise mit Bezug zu Generative AI. * Du verfügst über sehr gute Programmierkenntnisse in Python und kennst ML- und LLM-Frameworks wie Scikit-learn, LangChain oder Hugging Face. * Du hast ein solides Verständnis von Machine-Learning-Methoden und Generative-AI-Anwendungsfällen. * Du kannst in einem kundenorientierten Umfeld arbeiten und komplexe Themen verständlich vermitteln. * Du sprichst fließend Englisch; zusätzliche standortabhängige Sprachkenntnisse sind von Vorteil. WAS DICH ERWARTET: * Dein Impact ist entscheidend: Du gestaltest in einem hochmotivierten & smarten Team in unmittelbarer Zusammenarbeit mit den Gründern & Partnern aktiv die digitale Zukunft und sorgst durch die erfolgreiche Verknüpfung von Strategie und Implementierung für echten Mehrwert. * Dein Einsatz zahlt sich aus! Du profitierst von attraktiven Gehaltspaketen, Beteiligungen am Vertriebserfolg und exklusiven Investmentmöglichkeiten. Zusätzlich fördern wir unsere Top-Talente durch das 'Digital Leaders of Tomorrow' Programm und bieten dir somit weitere spannende Vorteile. * Dein Learning – unser Anliegen: Du wirst ab Tag eins durch vielfältige Entwicklungsangebote auf deiner Journey unterstützt, übernimmst schnell Verantwortung und hast die Möglichkeit mit uns deine individuelle Karriere zu gestalten – mit uns wirst du zum Digital Leader! * Dein Arbeitsumfeld: Du tauchst ein in ein diverses und familienfreundliches Umfeld, mit ausgeprägtem Teamspirit und profitierst von einem flexiblen und hybriden Arbeitsmodell in einem unserer Büros in München, London, Amsterdam, Mailand und Berlin.   * Dein Blick in die Zukunft: Du arbeitest am Puls der Zeit und sammelst wertvolle Einblicke und praktische Erfahrungen mit Fokus auf digitale Geschäftsmodelle und datengetriebene Wertschöpfung in acht zukunftsweisenden Branchen.   * Deine Benefits on top: Freue dich auf regelmäßige Teamevents und gemeinsame Sportsessions, profitiere von einer attraktiven betrieblichen Altersvorsorge, einer exklusiven Fitness- und Wellness-Mitgliedschaft, sowie Mobilitäts- und Essenszuschüsse und vielseitigen weiteren Company Benefits.