Schnelle Bewerbung
1
Erscheinungsdatum
Home-Office-Optionen
Pendelzeit
Bewerbungsart
Sprache
Fähigkeiten
Berufsfeld
Branche
Region
Städte
Berufserfahrung
Anstellungsart
Arbeitszeit
Filter
SortierungRelevanz
Home-Office-Optionen
Gehalt
Leg fest, wie viel du mindestens verdienen willst.
Pendelzeit
Bewerbungsart
Sprache
Fähigkeiten
Berufsfeld
Branche
Region
Städte
Berufserfahrung
Anstellungsart
Arbeitszeit
6 Treffer für Associate Controller Jobs in Hardheim im Umkreis von 30 km
Noch nichts dabei? Es gibt 6 weitere Jobs, die zu deiner Suche passen könnten
){kind=logo}
Employment opportunities are available to all applicants and associates without regard to race, color, religion, creed, gender (including pregnancy, childbirth, breastfeeding, or related medical conditions), gender identity or expression, national origin, ancestry, age, mental or physical disability, genetic information, marital status, familial status, sexual orientation, protected military or veteran status, or any other characteristic protected by applicable law.
Employment opportunities are available to all applicants and associates without regard to race, color, religion, creed, gender (including pregnancy, childbirth, breastfeeding, or related medical conditions), gender identity or expression, national origin, ancestry, age, mental or physical disability, genetic information, marital status, familial status, sexual orientation, protected military or veteran status, or any other characteristic protected by applicable law.
Employment opportunities are available to all applicants and associates without regard to race, color, religion, creed, gender (including pregnancy, childbirth, breastfeeding, or related medical conditions), gender identity or expression, national origin, ancestry, age, mental or physical disability, genetic information, marital status, familial status, sexual orientation, protected military or veteran status, or any other characteristic protected by applicable law.
Employment opportunities are available to all applicants and associates without regard to race, color, religion, creed, gender (including pregnancy, childbirth, breastfeeding, or related medical conditions), gender identity or expression, national origin, ancestry, age, mental or physical disability, genetic information, marital status, familial status, sexual orientation, protected military or veteran status, or any other characteristic protected by applicable law.
Employment opportunities are available to all applicants and associates without regard to race, color, religion, creed, gender (including pregnancy, childbirth, breastfeeding, or related medical conditions), gender identity or expression, national origin, ancestry, age, mental or physical disability, genetic information, marital status, familial status, sexual orientation, protected military or veteran status, or any other characteristic protected by applicable law.
Employment opportunities are available to all applicants and associates without regard to race, color, religion, creed, gender (including pregnancy, childbirth, breastfeeding, or related medical conditions), gender identity or expression, national origin, ancestry, age, mental or physical disability, genetic information, marital status, familial status, sexual orientation, protected military or veteran status, or any other characteristic protected by applicable law.
NEU
Employment opportunities are available to all applicants and associates without regard to race, color, religion, creed, gender (including pregnancy, childbirth, breastfeeding, or related medical conditions), gender identity or expression, national origin, ancestry, age, mental or physical disability, genetic information, marital status, familial status, sexual orientation, protected military or veteran status, or any other characteristic protected by applicable law.
Employment opportunities are available to all applicants and associates without regard to race, color, religion, creed, gender (including pregnancy, childbirth, breastfeeding, or related medical conditions), gender identity or expression, national origin, ancestry, age, mental or physical disability, genetic information, marital status, familial status, sexual orientation, protected military or veteran status, or any other characteristic protected by applicable law.
Employment opportunities are available to all applicants and associates without regard to race, color, religion, creed, gender (including pregnancy, childbirth, breastfeeding, or related medical conditions), gender identity or expression, national origin, ancestry, age, mental or physical disability, genetic information, marital status, familial status, sexual orientation, protected military or veteran status, or any other characteristic protected by applicable law.
Employment opportunities are available to all applicants and associates without regard to race, color, religion, creed, gender (including pregnancy, childbirth, breastfeeding, or related medical conditions), gender identity or expression, national origin, ancestry, age, mental or physical disability, genetic information, marital status, familial status, sexual orientation, protected military or veteran status, or any other characteristic protected by applicable law.
Employment opportunities are available to all applicants and associates without regard to race, color, religion, creed, gender (including pregnancy, childbirth, breastfeeding, or related medical conditions), gender identity or expression, national origin, ancestry, age, mental or physical disability, genetic information, marital status, familial status, sexual orientation, protected military or veteran status, or any other characteristic protected by applicable law.
Employment opportunities are available to all applicants and associates without regard to race, color, religion, creed, gender (including pregnancy, childbirth, breastfeeding, or related medical conditions), gender identity or expression, national origin, ancestry, age, mental or physical disability, genetic information, marital status, familial status, sexual orientation, protected military or veteran status, or any other characteristic protected by applicable law.
12 passende Jobs liegen außerhalb deiner Region
){kind=logo}
Engineer / PLC Programmer (m/f/d) - OT Network Architecture & Cyber Security
Engineer / PLC Programmer (m/f/d) - OT Network Architecture & Cyber Security
JAUSS HR-Consulting GmbH & Co. KG
Würzburg
Teilweise Home-Office
Schnelle Bewerbung
JAUSS HR-Consulting GmbH & Co. KG * Würzburg * Feste Anstellung * Homeoffice möglich, Vollzeit - Schnelle Bewerbung - Shape the future of automated plants at global sites - Our client is a leading global manufacturer of building materials with over 220 production sites and more than 42.500 employees, generating annual sales of over €10 billion. The company sets standards in the industry and cultivates a corporate culture characterised by respect, humanity and innovation. The Engineering division at the headquarter in the Wuerzburg area / Germany manages the planning and construction of plants at global locations. We are creating a new position and seeking a communicative, technically adept, interculturally experienced and hands-on individual for the position * Responsible for designing and implementing of OT network architectures for globally located production sites based on Purdue ...
JAUSS HR-Consulting GmbH & Co. KG * Würzburg * Feste Anstellung * Homeoffice möglich, Vollzeit - Schnelle Bewerbung - Shape the future of automated plants at global sites - Our client is a leading global manufacturer of building materials with over 220 production sites and more than 42.500 employees, generating annual sales of over €10 billion. The company sets standards in the industry and cultivates a corporate culture characterised by respect, humanity and innovation. The Engineering division at the headquarter in the Wuerzburg area / Germany manages the planning and construction of plants at global locations. We are creating a new position and seeking a communicative, technically adept, interculturally experienced and hands-on individual for the position * Responsible for designing and implementing of OT network architectures for globally located production sites based on Purdue ...
){kind=logo}
The Quality Group GmbH * bundesweit, Home-Office * Feste Anstellung * Homeoffice möglich, Vollzeit - Sei einer der ersten Bewerber - Start: immediately | Level: Professional | Location: Hamburg, remote | Working time: Fulltime (40h/week) As Manager HR Controlling & Analytics (gn), you are responsible for personnel cost budgeting, forecasting, and the continuous development of key HR and recruiting metrics. You work closely with HR, Finance, and business stakeholders and actively support data-driven decision-making through high-quality analyses and insights. You can work fully remotely within Germany and are not required to be on-site regularly, but you should be flexible to be present at our Hamburg headquarter when needed. Get in touch with us and become part of the team. Your mission * You manage the personnel cost budgeting process, including forecasting models, coordination of ...
The Quality Group GmbH * bundesweit, Home-Office * Feste Anstellung * Homeoffice möglich, Vollzeit - Sei einer der ersten Bewerber - Start: immediately | Level: Professional | Location: Hamburg, remote | Working time: Fulltime (40h/week) As Manager HR Controlling & Analytics (gn), you are responsible for personnel cost budgeting, forecasting, and the continuous development of key HR and recruiting metrics. You work closely with HR, Finance, and business stakeholders and actively support data-driven decision-making through high-quality analyses and insights. You can work fully remotely within Germany and are not required to be on-site regularly, but you should be flexible to be present at our Hamburg headquarter when needed. Get in touch with us and become part of the team. Your mission * You manage the personnel cost budgeting process, including forecasting models, coordination of ...
){kind=logo}
If so, we want you to join our team as a 'Skechers Sales Associate' As a Sales Associate, you'll be responsible for making sure our customers receive excellent service and work with the rest of the team to achieve the store's goals.
If so, we want you to join our team as a 'Skechers Sales Associate' As a Sales Associate, you'll be responsible for making sure our customers receive excellent service and work with the rest of the team to achieve the store's goals.
){kind=logo}
Ciena Limited, German Branch * Remote-Germany * Feste Anstellung * Homeoffice möglich, Vollzeit - Sei einer der ersten Bewerber - Introduction - As the global leader in high-speed connectivity, Ciena is committed to a people-first approach. Our teams enjoy a culture focused on prioritizing a flexible work environment that empowers individual growth, well-being, and belonging. We're a technology company that leads with our humanity—driving our business priorities alongside meaningful social, community, and societal impact. How You Will Contribute - Reporting to the Services organization, you will play a hands-on role in delivering network solutions and providing post-sales technical support. You'll work closely with internal teams, , and customers to ensure seamless deployment, reconfiguration, and ongoing improvements of Ciena's solutions.
Ciena Limited, German Branch * Remote-Germany * Feste Anstellung * Homeoffice möglich, Vollzeit - Sei einer der ersten Bewerber - Introduction - As the global leader in high-speed connectivity, Ciena is committed to a people-first approach. Our teams enjoy a culture focused on prioritizing a flexible work environment that empowers individual growth, well-being, and belonging. We're a technology company that leads with our humanity—driving our business priorities alongside meaningful social, community, and societal impact. How You Will Contribute - Reporting to the Services organization, you will play a hands-on role in delivering network solutions and providing post-sales technical support. You'll work closely with internal teams, , and customers to ensure seamless deployment, reconfiguration, and ongoing improvements of Ciena's solutions.
){kind=logo}
Anschreiben nicht erforderlich
Our 'under the roof' associates process millions of products for dispatch to our delivery teams.
Our 'under the roof' associates process millions of products for dispatch to our delivery teams.
){kind=logo}
Flight Physics & Flight Controls Engineer (m/w/d)
Flight Physics & Flight Controls Engineer (m/w/d)
Alpine Eagle GmbH
Karlsruhe, Baden-Württemberg, Germany, München, Bavaria, Germany
Maximize flight performance through controller tuning and stability analysis
Maximize flight performance through controller tuning and stability analysis
Working Student Electrical Engineering & Hardware Integration (m/w/d)
Working Student Electrical Engineering & Hardware Integration (m/w/d)
Alpine Eagle GmbH
Karlsruhe, Baden-Württemberg, Germany
Build drone testbeds, including companion computers, flight controllers, sensors, and actuators.
Build drone testbeds, including companion computers, flight controllers, sensors, and actuators.
Working Student Robotic Software Development (m/w/d)
Working Student Robotic Software Development (m/w/d)
Alpine Eagle GmbH
Karlsruhe, Baden-Württemberg, Germany
and PX4-based flight controllers is a plus.
and PX4-based flight controllers is a plus.
Internship Guidance, Navigation and Control Engineering (m/w/d)
Internship Guidance, Navigation and Control Engineering (m/w/d)
Alpine Eagle GmbH
Karlsruhe, Baden-Württemberg, Germany
Experience with robotic simulators (at least one of Gazebo, MuJoCo, Isaac Gym, or Airsim) and PX4-based flight controllers is a plus.
Experience with robotic simulators (at least one of Gazebo, MuJoCo, Isaac Gym, or Airsim) and PX4-based flight controllers is a plus.
Intern / Working Student Hardware Engineering - Drone Defense (m/w/d)
Intern / Working Student Hardware Engineering - Drone Defense (m/w/d)
Alpine Eagle GmbH
Karlsruhe, Baden-Württemberg, Germany
The Founders Associate will be the CEO's trusted partner across strategy and operations, driving high-impact strategic and operational initiatives across our defence drone-tech startup.
The Founders Associate will be the CEO's trusted partner across strategy and operations, driving high-impact strategic and operational initiatives across our defence drone-tech startup.
){kind=logo}
This person will be responsible for design, simulation and evaluation of core analog IPs which exists in a typical microcontroller. * Design experience with deep sub-micron process with focus on Micro-controller Peripheral Architectures, Designs for Ultra Low Power High Speed Analog Mixed Signals * Solid fundamentals of transistor level analog integrated circuits and device physics * Have in-depth knowledge on Microcontroller Architecture and SoC verification skills preferred
This person will be responsible for design, simulation and evaluation of core analog IPs which exists in a typical microcontroller. * Design experience with deep sub-micron process with focus on Micro-controller Peripheral Architectures, Designs for Ultra Low Power High Speed Analog Mixed Signals * Solid fundamentals of transistor level analog integrated circuits and device physics * Have in-depth knowledge on Microcontroller Architecture and SoC verification skills preferred
){kind=logo}
Consumer Goods Cloud REX Salesforce Consultant / Solution Architect
Consumer Goods Cloud REX Salesforce Consultant / Solution Architect
Peak & Peak GmbH
remote, Germany
Teilweise Home-Office
Salesforce certification (Associate or Administrator certification or platform app builder, Business Analyst, Sales & Service Cloud)
Salesforce certification (Associate or Administrator certification or platform app builder, Business Analyst, Sales & Service Cloud)
Diese Jobs könnten dich auch interessieren
){kind=logo}
As a senior design engineer within the system integration team, you will find yourself at the heart of product design related efforts across Isar Aerospace. You will play a crucial role in getting our orbital launch vehicle designed and built. * Hardware design and development from concept to manufacturing drawings * Integration of designs into global assemblies * Maintenance & improvement of design and production engineering processes * Providing general guidance for fluid hardware and secondary structures design o Defining and establishing design standards, best practices, and design documentation - o Reviewing designs and manufacturing drawings * Preparation of design reviews, risk assessments, trade-off studies, etc. * Mentoring and providing technical guidance for design challenges within the team * 8+ years of experience in hardware design and development
As a senior design engineer within the system integration team, you will find yourself at the heart of product design related efforts across Isar Aerospace. You will play a crucial role in getting our orbital launch vehicle designed and built. * Hardware design and development from concept to manufacturing drawings * Integration of designs into global assemblies * Maintenance & improvement of design and production engineering processes * Providing general guidance for fluid hardware and secondary structures design o Defining and establishing design standards, best practices, and design documentation - o Reviewing designs and manufacturing drawings * Preparation of design reviews, risk assessments, trade-off studies, etc. * Mentoring and providing technical guidance for design challenges within the team * 8+ years of experience in hardware design and development
){kind=logo}
Field Applications Engineer (FAE) - Central Europe
Field Applications Engineer (FAE) - Central Europe
GigaDevice Semiconductor Germany GmbH
Höhenkirchen-Siegertsbrunn
We are seeking a Field Applications Engineer (FAE) to support our customers in Central Europe, with a primary focus on MCU hardware and software solutions. Bachelor's or Master's degree in Electrical Engineering, Computer Engineering, or a related technical field (equivalent to a 4-year college degree). * GigaDevice Semiconductor Germany GmbH * Höhenkirchen-Siegertsbrunn * Feste Anstellung * Vollzeit - GigaDevice is a global leader in semiconductor technology, specializing in high-performance Flash memory, microcontrollers (MCUs), and advanced semiconductor solutions. With a strong presence worldwide, we are committed to innovation and providing best-in-class support to our customers. Ihre Aufgaben - The ideal candidate will have a strong technical background in microcontroller technology and a passion for helping customers integrate our solutions into their designs.
We are seeking a Field Applications Engineer (FAE) to support our customers in Central Europe, with a primary focus on MCU hardware and software solutions. Bachelor's or Master's degree in Electrical Engineering, Computer Engineering, or a related technical field (equivalent to a 4-year college degree). * GigaDevice Semiconductor Germany GmbH * Höhenkirchen-Siegertsbrunn * Feste Anstellung * Vollzeit - GigaDevice is a global leader in semiconductor technology, specializing in high-performance Flash memory, microcontrollers (MCUs), and advanced semiconductor solutions. With a strong presence worldwide, we are committed to innovation and providing best-in-class support to our customers. Ihre Aufgaben - The ideal candidate will have a strong technical background in microcontroller technology and a passion for helping customers integrate our solutions into their designs.
NEU
){kind=logo}
Research Engineer - Vision Language Action Models for Intelligent Cyber Physical Systems (f/m/div.)
Research Engineer - Vision Language Action Models for Intelligent Cyber Physical Systems (f/m/div.)
Bosch Gruppe
Renningen
Teilweise Home-Office
As a Research Engineer, you will develop cutting-edge Vision-Language-Action (VLA) architectures that empower AI agents to interpret human instructions and act autonomously in complex environments. * You will contribute to fundamental and applied research on novel VLA models and actively drive their advancement. + Demonstrated capability to go beyond research prototypes and integrate cutting-edge AI methods into practically relevant and usable SW solutions + driving, industrial automation, or building systems interest in emerging domains such as smart heating and HVAC control, where semantic AI can optimize control strategies + Proven ability to drive research projects and turning research into practical innovation + Collaborative and interdisciplinary mindset, able to work across research and product teams at Bosch
As a Research Engineer, you will develop cutting-edge Vision-Language-Action (VLA) architectures that empower AI agents to interpret human instructions and act autonomously in complex environments. * You will contribute to fundamental and applied research on novel VLA models and actively drive their advancement. + Demonstrated capability to go beyond research prototypes and integrate cutting-edge AI methods into practically relevant and usable SW solutions + driving, industrial automation, or building systems interest in emerging domains such as smart heating and HVAC control, where semantic AI can optimize control strategies + Proven ability to drive research projects and turning research into practical innovation + Collaborative and interdisciplinary mindset, able to work across research and product teams at Bosch
){kind=logo}
Prototype Technician NEXUS - In-Field Service (m/f/d)
Prototype Technician NEXUS - In-Field Service (m/f/d)
Quantum-Systems GmbH
Gilching bei München
Teilweise Home-Office
Als In-Field Service Technician bist Du ein zentrales Mitglied unseres NEXUS-Teams und sorgst für den reibungslosen Aufbau, Betrieb und Service unserer fortschrittlichen Droneport-Systeme bei Kundeneinsätzen weltweit. * Quantum-Systems GmbH * Gilching bei München * Feste Anstellung * Homeoffice möglich, Vollzeit - Quantum Systems specialises in the development, design, and production of small Unmanned Aerial Systems (sUAS). The company's range of electric vertical take-off and landing (eVTOL) sUAS are built to maximize range and versatility and to provide with a seamless experience. By integrating cutting-edge software capabilities, like edge computing and real-time AI-powered data processing, Quantum Systems is building next-generation UAS for clients in defence, security, public sectors. Gemeinsam mit unserem erstklassigen Team aus Ingenieur:innen und Techniker:innen spielst Du eine entscheidende ...
Als In-Field Service Technician bist Du ein zentrales Mitglied unseres NEXUS-Teams und sorgst für den reibungslosen Aufbau, Betrieb und Service unserer fortschrittlichen Droneport-Systeme bei Kundeneinsätzen weltweit. * Quantum-Systems GmbH * Gilching bei München * Feste Anstellung * Homeoffice möglich, Vollzeit - Quantum Systems specialises in the development, design, and production of small Unmanned Aerial Systems (sUAS). The company's range of electric vertical take-off and landing (eVTOL) sUAS are built to maximize range and versatility and to provide with a seamless experience. By integrating cutting-edge software capabilities, like edge computing and real-time AI-powered data processing, Quantum Systems is building next-generation UAS for clients in defence, security, public sectors. Gemeinsam mit unserem erstklassigen Team aus Ingenieur:innen und Techniker:innen spielst Du eine entscheidende ...
){kind=logo}
Intern for Testing for Drivability and 48V Operating Strategy
Intern for Testing for Drivability and 48V Operating Strategy
Mercedes-Benz AG
Sindelfingen
Teilweise Home-Office
Simultaneously, through innovative operating strategies, we optimize the interaction of all powertrain components to ensure maximum efficiency, minimal emissions, and superior performance under all conditions. As an intern in our team, you will gain comprehensive insights into the forward-looking development of electrified and hybridized vehicle powertrains. * Development and implementation of test procedures in powertrain simulation environments using Python, for the validation of drivability and operating strategy scopes * Conception, development, and programming of innovative evaluation tools and toolchains in MATLAB and Python, for the automated analysis and assessment of drivability and operating strategy * Mercedes-Benz AG * Sindelfingen * Praktikum * Homeoffice möglich, Vollzeit - Life is always about becoming… Becoming means going on a journey to be the best version of our future selves.
Simultaneously, through innovative operating strategies, we optimize the interaction of all powertrain components to ensure maximum efficiency, minimal emissions, and superior performance under all conditions. As an intern in our team, you will gain comprehensive insights into the forward-looking development of electrified and hybridized vehicle powertrains. * Development and implementation of test procedures in powertrain simulation environments using Python, for the validation of drivability and operating strategy scopes * Conception, development, and programming of innovative evaluation tools and toolchains in MATLAB and Python, for the automated analysis and assessment of drivability and operating strategy * Mercedes-Benz AG * Sindelfingen * Praktikum * Homeoffice möglich, Vollzeit - Life is always about becoming… Becoming means going on a journey to be the best version of our future selves.
Schnelle Bewerbung
Isar Aerospace SE * Ottobrunn * Feste Anstellung * Vollzeit - Schnelle Bewerbung - We are Isar Aerospace and we are at the forefront of New Space building a modern space business to enable faster, better and cheaper access to space. Our mission is to help democratise space and use it for good in order to improve life on Earth now and for the future generations. We are a fast-growing company aiming to provide sustainable and environmentally friendly launch solutions for small and medium-sized satellites and constellations into Low Earth Orbit. The company is privately funded by world-leading technology investors with strong commitment and support and our team is made of driven and talented people with a real passion for space innovation. We're making rockets in a way that hasn't been done before disrupting a traditional industry.
Isar Aerospace SE * Ottobrunn * Feste Anstellung * Vollzeit - Schnelle Bewerbung - We are Isar Aerospace and we are at the forefront of New Space building a modern space business to enable faster, better and cheaper access to space. Our mission is to help democratise space and use it for good in order to improve life on Earth now and for the future generations. We are a fast-growing company aiming to provide sustainable and environmentally friendly launch solutions for small and medium-sized satellites and constellations into Low Earth Orbit. The company is privately funded by world-leading technology investors with strong commitment and support and our team is made of driven and talented people with a real passion for space innovation. We're making rockets in a way that hasn't been done before disrupting a traditional industry.
){kind=logo}
Process & Mechatronics Engineer - Aseptic Filling & Dosing Systems (m/w/d)
Process & Mechatronics Engineer - Aseptic Filling & Dosing Systems (m/w/d)
Rommelag ENGINEERING
Sulzbach-Laufen bei Schwäbisch Hall, Aalen, Schwäbisch Gmünd
Teilweise Home-Office
Anschreiben nicht erforderlich
Schnelle Bewerbung
Systementwicklung & Architektur: Du übernimmst die End‑to‑End‑Verantwortung für die Konzeption, Auslegung und kontinuierliche Optimierung mechatronischer Füll‑ und Dosiersysteme. * Process Engineering & Simulation: Du betreust Prozess‑ und Fluidsimulationen, um Strömungsverhalten, Temperaturdynamik und Dosiergenauigkeit abzusichern. * Technische Qualifikation: Du hast ein abgeschlossenes Studium in Verfahrenstechnik, Mechatronik, Medizintechnik, Systems Engineering oder Maschinenbau. * Fachwissen in Fluidtechnik & Regelung: Du verfügst über fundierte Kenntnisse in Fluidtechnik, Pneumatik und Regelungstechnik und hast Erfahrung in der Integration geregelter mechatronischer Systeme. * Rommelag ENGINEERING * Sulzbach-Laufen bei Schwäbisch Hall, Aalen, Schwäbisch Gmünd * Feste Anstellung * Homeoffice möglich, Vollzeit - Anschreiben nicht erforderlich
Systementwicklung & Architektur: Du übernimmst die End‑to‑End‑Verantwortung für die Konzeption, Auslegung und kontinuierliche Optimierung mechatronischer Füll‑ und Dosiersysteme. * Process Engineering & Simulation: Du betreust Prozess‑ und Fluidsimulationen, um Strömungsverhalten, Temperaturdynamik und Dosiergenauigkeit abzusichern. * Technische Qualifikation: Du hast ein abgeschlossenes Studium in Verfahrenstechnik, Mechatronik, Medizintechnik, Systems Engineering oder Maschinenbau. * Fachwissen in Fluidtechnik & Regelung: Du verfügst über fundierte Kenntnisse in Fluidtechnik, Pneumatik und Regelungstechnik und hast Erfahrung in der Integration geregelter mechatronischer Systeme. * Rommelag ENGINEERING * Sulzbach-Laufen bei Schwäbisch Hall, Aalen, Schwäbisch Gmünd * Feste Anstellung * Homeoffice möglich, Vollzeit - Anschreiben nicht erforderlich