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(Senior) Data Scientist (m/f/d) - Energy Tech Start Up at Green Fusion GmbH
Berlin, , Germany - Full Time
Skills Needed
Data Analysis, Machine Learning, Python, Sql, Graphql, Rest, Data Modeling, Statistics, Control Technology, Energy Technologies, Version Control, Collaborative Coding, Quality Assurance, Predictive Modeling, Energy Time Series Data, Data Science Libraries
Specialization
Candidates should have a strong background in statistics, data modeling, and machine learning, along with familiarity in energy technologies. A degree in a relevant field such as engineering or data science is required.
Experience Required
Minimum 2 year(s)
Fachkraft / Mitarbeiter - Notruf- und Serviceleitstelle (m/w/d) at Securitas USA Corporate Services
Berlin, , Germany - Full Time
Skills Needed
Alarmbearbeitung, Kundenbetreuung, Teamarbeit, Zuverlässigkeit, Kommunikation, Dokumentation, überwachung, Qualitätsstandards
Specialization
Candidates should ideally be certified NSL professionals or have experience in an emergency and service control center. A strong communication ability, reliability, and a clean criminal record are essential.
(Junior) Vertriebsmitarbeiter*in B2B Innendienst (all gender) 30-40h/ Woche at GC Footwear GmbH
Berlin, , Germany - Full Time
Skills Needed
Lead Qualification, Offer Creation, Price Calculation, Negotiation, Customer Care, Crm Management, Sales Analysis, Team Collaboration, Communication Skills, Technical Understanding, Digital Tools, B2b Sales, Key Account Management, Telesales, Office Tools, Customer Contact
Specialization
Candidates should have a completed commercial vocational training or degree, with experience in sales or related fields being desirable. Strong communication skills in German and English, along with a good understanding of digital tools, are essential.
Mitarbeiter für Reservierungen im Backoffice (m/w/d) in Vollzeit at HR Dpt.
Berlin, , Germany - Full Time
Skills Needed
Communication Skills, Customer Service, Sales, Ms Office, Opentable, Gastronovi
Specialization
Candidates must have excellent communication skills in both German and English, along with a passion for professional consulting and sales. Experience with MS Office and familiarity with OpenTable and gastronovi are advantageous.
Servicetechniker / Elektromonteur (m/w/d) Sicherheitstechnik at HR Dpt.
Berlin, , Germany - Full Time
Skills Needed
Electrotechnical Systems, Installation, Programming, Maintenance, Teamwork, Communication, Security Technology, Troubleshooting
Specialization
Candidates should have an interest in electrotechnical systems and ideally possess a completed vocational training in the electrical field. Experience in the installation of security technology is advantageous, along with a Class B driver's license.
Mitarbeiter für den Empfang/Hostess (m/w/d) at HR Dpt.
Berlin, , Germany - Full Time
Skills Needed
Guest Service, Coordination, Reliability, Engagement, German Language Skills
Specialization
Candidates should have a passion for hospitality and ideally some experience in service or gastronomy. Good German language skills and the ability to work evenings and weekends are also required.
Koch kalte Küche / Chef de Partie (m/w/d) at HR Dpt.
Berlin, , Germany - Full Time
Skills Needed
Culinary Precision, Creativity, Teamwork, Communication, German Language Skills
Specialization
Candidates should have completed a vocational training as a cook and possess relevant work experience. Good communication skills, creativity, and proficiency in German are also required.
Experience Required
Minimum 2 year(s)
Mobile City Streife (m/w/d) at HR Dpt.
Berlin, , Germany - Full Time
Skills Needed
Customer Service, Technical Alarm Systems, Shift Work, Control Systems, Object Control, Elevator Rescue, Communication Skills, Teamwork
Specialization
Candidates should have initial professional experience and a clean criminal record. A driver's license class B is required, and the ability to work shifts is necessary.
Domain Consultant (Specialist Presales) - Next Gen. Firewalls at Palo Alto Networks
Berlin, , Germany - Full Time
Skills Needed
Pre Sales, Sales Engineering, Zero Trust, Networking, Network Security, Saas Security, Sse, Sase, Ngfw, Sd Wan, Casb, Proxy, Dlp, Byod Solutions, Cloud Security, Technical Validation
Specialization
Candidates should have 3+ years of experience in pre-sales or sales engineering related to network security and a solid understanding of various security technologies. Outstanding customer communication and problem-solving skills are essential, along with fluency in German and English.
Experience Required
Minimum 2 year(s)
Sicherheitsmitarbeiter (m/w/d) für Einzelhandel in Berlin (VZ/TZ/Mini) at HR Dpt.
Berlin, , Germany - Full Time
Skills Needed
Customer Greeting, Surveillance, Discretion, House Rules Enforcement, Alarm Response, Theft Prevention, Closing Duties, Control Rounds
Specialization
Candidates must have a valid security certification according to §34a GewO and a clean criminal record. A friendly and professional demeanor, along with reliability, is essential.
Technician/Aeronautical Engineer (m/f/d) at Germandrones GmbH
Berlin, , Germany - Full Time
Skills Needed
Software Development, Python, Aerospace Engineering, Communication Skills, Communication Systems
Specialization
Engineering
Qualification
Graduate
Working Student - Partner Manager for the Japanese Market (m/f/d - Part-tim at Make Opinion GmbH
Berlin, , Germany - Full Time
Skills Needed
Native Japanese, English B2, Communication Skills, Presentation Skills, Negotiation Skills, Client Experience, Affiliate Marketing, Market Research, Sales Experience, Customer Support, Analytical Skills, Attention To Detail, Self Motivated, Multitasking, Adaptability
Specialization
Candidates must be native Japanese speakers with a good command of English and possess excellent communication and negotiation skills. Experience in affiliate marketing, market research, or sales is a plus, along with a willingness to thrive in a dynamic international environment.
Senior Procurement Manager (m/f/d) at KoRo Handels GmbH
Berlin, , Germany - Full Time
Skills Needed
Procurement, Category Management, Supply Chain Management, Negotiation, Contract Management, Cost Management, Cross Functional Collaboration, Market Analysis, Production Processes, Cost Calculations, Erp Systems, Ms Excel, Teamwork, Analytical Mindset, Entrepreneurial Mindset, Hands On Mentality
Specialization
Candidates should have 3-6 years of experience in procurement or supply chain management, preferably in the FMCG or food industry. Fluency in German and English, along with strong negotiation skills and a hands-on mentality, are essential.
Experience Required
Minimum 2 year(s)
Country Manager DE (m/w/d) at DODO Germany GmbH
Berlin, , Germany - Full Time
Skills Needed
Business Leadership, Operational Excellence, Team Development, Financial Management, E Commerce, Sales, Networking, Strategic Thinking, Problem Solving, Coaching, Process Optimization, Performance Tracking, Growth Mindset, Relationship Building, Decision Making, Innovation
Specialization
Candidates should have a proven track record in revenue growth and customer acquisition, ideally in E-Commerce or logistics. A strong personal network in the German E-Commerce sector and experience in building and leading commercial teams are essential.
Experience Required
Minimum 5 year(s)
Work from home as an private online English Tutor - Part Time at Nachhilfeunterricht
Berlin, , Germany - Full Time
Skills Needed
Teaching, English Language, Communication, Patience, Adaptability
Specialization
Completion of compulsory higher education is required. No prior experience is necessary to apply for this position.
Work from home as an private online English Tutor - Part Time at Nachhilfeunterricht
Berlin, , Germany - Full Time
Skills Needed
Teaching, English Language, Communication, Academic Development, Flexibility
Specialization
Completion of compulsory higher education is required. No prior experience is necessary to apply for this position.
Art Director (all genders) Brand & Editorial Campaigns Team at Zalando
Berlin, , Germany - Full Time
Skills Needed
Good Communication Skills
Qualification
Graduate
Experience Required
Minimum 5 year(s)
Teachers in Mathematics, Physics and Computer Science at Studienkolleg at BIC Berlin International College GmbH
Berlin, , Germany - Full Time
Skills Needed
Mathematics, Physics, Computer Science, Teaching, Python Programming, Intercultural Experience, Communication, Curriculum Development
Specialization
You should have at least one year of experience in teaching groups of at least 5 students and be able to teach more than one subject. Fluency in English and a work permit for Germany are also required.
Experience Required
Minimum 2 year(s)
Strategischer Einkäufer Schienenfahrzeugtechnik (m/w/d) at Flix
Berlin, , Germany - Full Time
Skills Needed
Strategic Purchasing, Supplier Management, Technical Understanding, Contract Law, Sap, Ms Office, Digital Procurement Platforms, Negotiation, Cost Analysis, Market Analysis, Kpi Evaluation, Teamwork, Communication Skills, Problem Solving, Self Responsibility, German Language, English Language
Specialization
Candidates should have a completed commercial or technical education, ideally with a degree in business administration, engineering, or supply chain management. They should also possess 5-8 years of experience in technical or strategic procurement, particularly in the rail transport sector.
Experience Required
Minimum 5 year(s)
Junior Social Media Manager - Ressourcenmangel at Jomigo
Berlin, , Germany - Full Time
Skills Needed
Social Media Management, Communication Skills, Content Creation, Trend Analysis, Community Management, Research Skills, Team Collaboration, Political Awareness, Structured Work Ethic, Responsibility, Initiative, Sensitivity, Engagement, Adaptability, Creativity, B2b Communication
Specialization
Candidates must have a strong command of written language in both German and English, along with excellent communication skills. A genuine interest in political and social issues, as well as a structured and responsible work ethic, is essential.
(Senior) Data Scientist (m/f/d) - Energy Tech Start Up at Green Fusion GmbH
Berlin, , Germany -
Full Time

Start Date

Immediate

Expiry Date

27 Feb, 26

Salary

0.0

Posted On

29 Nov, 25

Experience

2 year(s) or above

Remote Job

Yes

Telecommute

Yes

Sponsor Visa

No

Skills

Data Analysis, Machine Learning, Python, SQL, GraphQL, REST, Data Modeling, Statistics, Control Technology, Energy Technologies, Version Control, Collaborative Coding, Quality Assurance, Predictive Modeling, Energy Time Series Data, Data Science Libraries

Industry

IT Services and IT Consulting

Description
Digitalization and energy transition in one sentence? That’s what we do at Green Fusion! Our software optimizes heating systems in the real estate sector, helping to combat climate change through digitalization and automation. We reduce emissions and energy consumption, actively advancing the energy transition. As a (Senior) Data Scientist, you’ll support our Energy Optimization Team by developing production-ready algorithms that optimize heating system operations. With a basic understanding of heating systems and strong expertise in control technology, you’ll bring essential insights to help us develop effective tools for energy optimization. Tasks You clean and analyze data to identify patterns and trends, uncovering insights that drive our solutions. You apply statistical techniques to interpret data, ensuring the reliability and accuracy of your findings. You build data models to predict heating system behavior and patterns using advanced analytics and machine learning. You develop production-ready algorithms and data pipelines to optimize energy system components, reduce CO₂ emissions, and enhance energy efficiency. You're responsible for the full development cycle of product features — from understanding customer requirements to final deployment — collaborating closely with energy engineers, frontend and backend developers, and product and customer success managers. You analyze experimental data to refine and improve energy optimization algorithms. You present your findings in a clear, concise, and understandable way. You support the team in creating data models for predicting energy time series data (e.g., heat demand, solar production, electricity consumption) and in optimizing energy systems using machine learning techniques, including supervised, unsupervised, and reinforcement learning. Requirements You are familiar with full product lifecycles — from feasibility studies and requirement engineering to production-ready tool development, code reviews, feature deployments, and ongoing maintenance and improvement. You bring strong skills in statistics, data modeling, data analysis, and machine learning. You have an educational background in electrical engineering, mechanical engineering, physics, computer science, data science, or mathematics — with a solid foundation in energy technologies. You have expertise in developing prediction models and working with energy time series data. You are proficient in Python, SQL, GraphQL, and REST, and you work confidently with data science libraries like Pandas, SciPy, and Scikit-Learn. Experience with Machine Learning Operations (MLOps) is a plus. You have hands-on experience with version control systems like Git and follow collaborative coding practices. You are familiar with testing frameworks and quality assurance processes to ensure robust, reliable product features. Your code is clean, well-structured, maintainable, and easy for others to understand and build upon. You are comfortable collaborating and communicating effectively with energy engineers, developers (frontend and backend), and customer success managers. You have a strong understanding of customer needs and know how to translate them into technical solutions. You are fluent in English and have a basic command of German. You are living in Berlin. Benefits 🏠 Flexible working hour models, home office, and remote work. 💡 Ongoing training opportunities – whether through job challenges, our open feedback culture, or sponsored training programs, there are always opportunities to learn and grow. 💼 Employee benefits such as Urban Sports Club or Become1. 🌱 Direct impact through your job – with us, you can actively contribute to the energy transition and fight against climate change every day. 💚 We value our team – that's why regular team events are very important to us. 🙌 The best team that Berlin has to offer – and maybe even beyond. Don’t believe it? Then find out for yourself and apply now! While we are still considered pioneers today, we can soon dominate the market with you! First in the DACH region, then throughout Europe. You can expect a motivated, open-minded, and dynamic environment that is passionate and ambitious about actively shaping the energy transition – a goal that can only be achieved together! We look forward to your application – Fernanda will get in touch with you!
Responsibilities
As a (Senior) Data Scientist, you will develop production-ready algorithms to optimize heating system operations. You will analyze data, build predictive models, and collaborate with various teams to enhance energy efficiency.
(Senior) Data Scientist (m/f/d) - Energy Tech Start Up at Green Fusion GmbH
Berlin, , Germany - Full Time
Skills Needed
Data Analysis, Machine Learning, Python, Sql, Graphql, Rest, Data Modeling, Statistics, Control Technology, Energy Technologies, Version Control, Collaborative Coding, Quality Assurance, Predictive Modeling, Energy Time Series Data, Data Science Libraries
Specialization
Candidates should have a strong background in statistics, data modeling, and machine learning, along with familiarity in energy technologies. A degree in a relevant field such as engineering or data science is required.
Experience Required
Minimum 2 year(s)
Fachkraft / Mitarbeiter - Notruf- und Serviceleitstelle (m/w/d) at Securitas USA Corporate Services
Berlin, , Germany - Full Time
Skills Needed
Alarmbearbeitung, Kundenbetreuung, Teamarbeit, Zuverlässigkeit, Kommunikation, Dokumentation, überwachung, Qualitätsstandards
Specialization
Candidates should ideally be certified NSL professionals or have experience in an emergency and service control center. A strong communication ability, reliability, and a clean criminal record are essential.
(Junior) Vertriebsmitarbeiter*in B2B Innendienst (all gender) 30-40h/ Woche at GC Footwear GmbH
Berlin, , Germany - Full Time
Skills Needed
Lead Qualification, Offer Creation, Price Calculation, Negotiation, Customer Care, Crm Management, Sales Analysis, Team Collaboration, Communication Skills, Technical Understanding, Digital Tools, B2b Sales, Key Account Management, Telesales, Office Tools, Customer Contact
Specialization
Candidates should have a completed commercial vocational training or degree, with experience in sales or related fields being desirable. Strong communication skills in German and English, along with a good understanding of digital tools, are essential.
Mitarbeiter für Reservierungen im Backoffice (m/w/d) in Vollzeit at HR Dpt.
Berlin, , Germany - Full Time
Skills Needed
Communication Skills, Customer Service, Sales, Ms Office, Opentable, Gastronovi
Specialization
Candidates must have excellent communication skills in both German and English, along with a passion for professional consulting and sales. Experience with MS Office and familiarity with OpenTable and gastronovi are advantageous.
Servicetechniker / Elektromonteur (m/w/d) Sicherheitstechnik at HR Dpt.
Berlin, , Germany - Full Time
Skills Needed
Electrotechnical Systems, Installation, Programming, Maintenance, Teamwork, Communication, Security Technology, Troubleshooting
Specialization
Candidates should have an interest in electrotechnical systems and ideally possess a completed vocational training in the electrical field. Experience in the installation of security technology is advantageous, along with a Class B driver's license.
Mitarbeiter für den Empfang/Hostess (m/w/d) at HR Dpt.
Berlin, , Germany - Full Time
Skills Needed
Guest Service, Coordination, Reliability, Engagement, German Language Skills
Specialization
Candidates should have a passion for hospitality and ideally some experience in service or gastronomy. Good German language skills and the ability to work evenings and weekends are also required.
Koch kalte Küche / Chef de Partie (m/w/d) at HR Dpt.
Berlin, , Germany - Full Time
Skills Needed
Culinary Precision, Creativity, Teamwork, Communication, German Language Skills
Specialization
Candidates should have completed a vocational training as a cook and possess relevant work experience. Good communication skills, creativity, and proficiency in German are also required.
Experience Required
Minimum 2 year(s)
Mobile City Streife (m/w/d) at HR Dpt.
Berlin, , Germany - Full Time
Skills Needed
Customer Service, Technical Alarm Systems, Shift Work, Control Systems, Object Control, Elevator Rescue, Communication Skills, Teamwork
Specialization
Candidates should have initial professional experience and a clean criminal record. A driver's license class B is required, and the ability to work shifts is necessary.
Domain Consultant (Specialist Presales) - Next Gen. Firewalls at Palo Alto Networks
Berlin, , Germany - Full Time
Skills Needed
Pre Sales, Sales Engineering, Zero Trust, Networking, Network Security, Saas Security, Sse, Sase, Ngfw, Sd Wan, Casb, Proxy, Dlp, Byod Solutions, Cloud Security, Technical Validation
Specialization
Candidates should have 3+ years of experience in pre-sales or sales engineering related to network security and a solid understanding of various security technologies. Outstanding customer communication and problem-solving skills are essential, along with fluency in German and English.
Experience Required
Minimum 2 year(s)
Sicherheitsmitarbeiter (m/w/d) für Einzelhandel in Berlin (VZ/TZ/Mini) at HR Dpt.
Berlin, , Germany - Full Time
Skills Needed
Customer Greeting, Surveillance, Discretion, House Rules Enforcement, Alarm Response, Theft Prevention, Closing Duties, Control Rounds
Specialization
Candidates must have a valid security certification according to §34a GewO and a clean criminal record. A friendly and professional demeanor, along with reliability, is essential.
Technician/Aeronautical Engineer (m/f/d) at Germandrones GmbH
Berlin, , Germany - Full Time
Skills Needed
Software Development, Python, Aerospace Engineering, Communication Skills, Communication Systems
Specialization
Engineering
Qualification
Graduate
Working Student - Partner Manager for the Japanese Market (m/f/d - Part-tim at Make Opinion GmbH
Berlin, , Germany - Full Time
Skills Needed
Native Japanese, English B2, Communication Skills, Presentation Skills, Negotiation Skills, Client Experience, Affiliate Marketing, Market Research, Sales Experience, Customer Support, Analytical Skills, Attention To Detail, Self Motivated, Multitasking, Adaptability
Specialization
Candidates must be native Japanese speakers with a good command of English and possess excellent communication and negotiation skills. Experience in affiliate marketing, market research, or sales is a plus, along with a willingness to thrive in a dynamic international environment.
Senior Procurement Manager (m/f/d) at KoRo Handels GmbH
Berlin, , Germany - Full Time
Skills Needed
Procurement, Category Management, Supply Chain Management, Negotiation, Contract Management, Cost Management, Cross Functional Collaboration, Market Analysis, Production Processes, Cost Calculations, Erp Systems, Ms Excel, Teamwork, Analytical Mindset, Entrepreneurial Mindset, Hands On Mentality
Specialization
Candidates should have 3-6 years of experience in procurement or supply chain management, preferably in the FMCG or food industry. Fluency in German and English, along with strong negotiation skills and a hands-on mentality, are essential.
Experience Required
Minimum 2 year(s)
Country Manager DE (m/w/d) at DODO Germany GmbH
Berlin, , Germany - Full Time
Skills Needed
Business Leadership, Operational Excellence, Team Development, Financial Management, E Commerce, Sales, Networking, Strategic Thinking, Problem Solving, Coaching, Process Optimization, Performance Tracking, Growth Mindset, Relationship Building, Decision Making, Innovation
Specialization
Candidates should have a proven track record in revenue growth and customer acquisition, ideally in E-Commerce or logistics. A strong personal network in the German E-Commerce sector and experience in building and leading commercial teams are essential.
Experience Required
Minimum 5 year(s)
Work from home as an private online English Tutor - Part Time at Nachhilfeunterricht
Berlin, , Germany - Full Time
Skills Needed
Teaching, English Language, Communication, Patience, Adaptability
Specialization
Completion of compulsory higher education is required. No prior experience is necessary to apply for this position.
Work from home as an private online English Tutor - Part Time at Nachhilfeunterricht
Berlin, , Germany - Full Time
Skills Needed
Teaching, English Language, Communication, Academic Development, Flexibility
Specialization
Completion of compulsory higher education is required. No prior experience is necessary to apply for this position.
Art Director (all genders) Brand & Editorial Campaigns Team at Zalando
Berlin, , Germany - Full Time
Skills Needed
Good Communication Skills
Qualification
Graduate
Experience Required
Minimum 5 year(s)
Teachers in Mathematics, Physics and Computer Science at Studienkolleg at BIC Berlin International College GmbH
Berlin, , Germany - Full Time
Skills Needed
Mathematics, Physics, Computer Science, Teaching, Python Programming, Intercultural Experience, Communication, Curriculum Development
Specialization
You should have at least one year of experience in teaching groups of at least 5 students and be able to teach more than one subject. Fluency in English and a work permit for Germany are also required.
Experience Required
Minimum 2 year(s)
Strategischer Einkäufer Schienenfahrzeugtechnik (m/w/d) at Flix
Berlin, , Germany - Full Time
Skills Needed
Strategic Purchasing, Supplier Management, Technical Understanding, Contract Law, Sap, Ms Office, Digital Procurement Platforms, Negotiation, Cost Analysis, Market Analysis, Kpi Evaluation, Teamwork, Communication Skills, Problem Solving, Self Responsibility, German Language, English Language
Specialization
Candidates should have a completed commercial or technical education, ideally with a degree in business administration, engineering, or supply chain management. They should also possess 5-8 years of experience in technical or strategic procurement, particularly in the rail transport sector.
Experience Required
Minimum 5 year(s)
Junior Social Media Manager - Ressourcenmangel at Jomigo
Berlin, , Germany - Full Time
Skills Needed
Social Media Management, Communication Skills, Content Creation, Trend Analysis, Community Management, Research Skills, Team Collaboration, Political Awareness, Structured Work Ethic, Responsibility, Initiative, Sensitivity, Engagement, Adaptability, Creativity, B2b Communication
Specialization
Candidates must have a strong command of written language in both German and English, along with excellent communication skills. A genuine interest in political and social issues, as well as a structured and responsible work ethic, is essential.