Quest One

Security Engineer

• Responsible for functional safety within product development.
• Develop the functional safety concept and specify safety functions, controllers, and sensors.
• Develop the test plan to validate the safety functions.
• Support the testing team in creating test specifications for the safety functions.
• Act as the point of contact for customer projects on functional safety.
• Support the product certification process and serve as contact for the certification body regarding questions about the functional safety concept.

Functional Safety Engineer – m/f/d

Sales

• Identify, qualify, and develop new business opportunities in hydrogen and power-to-X markets.
• Leverage existing network of contacts and customers to generate leads and opportunities.
• Drive the full sales cycle from prospecting and solution design to proposal, negotiation, and contract closure.
• Build and maintain strong relationships with key accounts, EPCs, developers, and industrial customers.
• Represent Quest One at industry events, conferences, and customer meetings.
• Collaborate with technical and product management teams to ensure proposals are feasible, competitive, and aligned with customer requirements.
• Provide market intelligence on competitors, pricing, and trends in hydrogen and renewable energy.

Sales Manager

Supply Chain

• Organization, control and assurance of operational intralogistics (goods receipt, storage & order picking)
• Coordination of interfaces between Purchasing, Production Planning, Production and Quality
• Work packages to further develop logistics processes towards Lean Logistics
• Definition of storage locations according to storage strategy (FIFO)
• Monitoring of inventory levels and conducting stock counts
• Monitoring warehouse KPIs (space utilization, turnover, target vs. actual throughput times) and optimizing them
• Training of new colleagues
• Compliance with safety and quality guidelines in the warehouse area

Logistics Coordinator

Network Engineer

• Planning and designing the strategic network architecture.
• Requirements management: capturing, analyzing and consolidating requirements to create a long-term network roadmap.
• Evaluating new technologies (e.g., SD-WAN, Zero Trust, cloud networking) and integrating them.
• Ensuring high availability and performance by defining standards.
• Creating architecture blueprints, security concepts and compliance-aligned policies (e.g., ISO 27001).
• Leading and advising on projects such as network modernization and cloud integration.
• Coordinating external partners: selecting and managing service providers and vendors.
• Complete documentation of the architecture and definition of monitoring and reporting standards.
• Supporting the administration and further development of Microsoft 365 services.

Senior Network Architect

Technical Writer

• You create and optimize complex technical documentation such as operating, assembly and maintenance manuals, as well as functional and system descriptions in accordance with DIN EN 82079-1 and relevant EU directives.
• You work closely with development teams.
• You work with an XML-based authoring system (GRIPS) and support the entire process from creation to translation.
• You independently produce technical illustrations.
• You collaborate closely with development and obtain the required information.
• You create safety and warning notices in accordance with applicable standards.
• You actively contribute to the development of new documentation formats.
• You assist with translation coordination and terminology management.

Technical Editor

• Support the sales team in identifying, contacting, and evaluating inquiries for hydrogen projects involving electrolysis across Europe
• Prepare proposals/quotes in coordination with the sales team
• Market research and analysis / business development
• Conduct contact/lead research
• Prepare presentations

Working Student – Sales

Recruitment

• Du unterstützt unser People Team im gesamten Recruiting-Prozess und erhältst spannende Einblicke in die Personalarbeit
• Du erstellst und veröffentlichst Stellenanzeigen, sichtest Bewerbungen, triffst eine Vorauswahl und koordinierst Interviews
• Du führst eigenständig Interviews mit Student*innen und begleitest den Auswahlprozess
• Du kommunizierst mit Bewerber*innen und trägst aktiv zu einer positiven Candidate Experience bei
• Du pflegst unser Bewerbermanagementsystem und unterstützt bei administrativen Aufgaben
• Du wirkst bei HR-Projekten mit, zum Beispiel zur Weiterentwicklung unseres Employer Brandings

Werkstudent, Praktikant Talent Acquisition

Cloud Engineer

• Responsibility for the operation, maintenance, development and optimization of the existing Microsoft Cloud infrastructure (Azure)
• Management of IT infrastructure and influence on overall solutions
• Advising project stakeholders and translating business requirements into cloud and hybrid solutions
• Implementing the associated IT architecture and cloud resources
• Designing governance and monitoring solutions; data storage and infrastructure solutions; identity solutions; and business continuity solutions
• Providing user support for hardware and software environments (business applications and M365 components)
• Installing, configuring and maintaining hardware and software components and delivering sustainable problem resolution
• Managing users in Azure Active Directory (AAD/Entra) and endpoints in Endpoint Manager
• Co-designing and implementing IT service processes

Senior Cloud Architect

Procurement

• Erstellung eines Konzepts zur Datenorganisation und Ablagesystem für den Bereich Procurement
• Umsetzung des Konzepts mit den verfügbaren Tools der IT (Sharepoint, Power BI, MS Office)
• Nutzung von Automatisierungstechniken zur Optimierung der Arbeitsabläufe in der neuen Struktur
• Etablierung eines Konzepts für Zugriffsrechte, zum Management der neuen Struktur
• Einbringung eigener Ideen und Schaffung eines IT Ablagesystems, das den aktuellen Anforderungen gerecht wird

Werkstudent Einkauf IT, w/m/d

Manager

• You plan and coordinate maintenance and repair work on our production facilities.
• You manage the tendering and contracting process for external service providers.
• You are responsible for the management, coordination and quality control of external partners.
• You document maintenance, repairs and inspections carefully.
• You independently implement projects to improve our infrastructure and safety.
• You plan the budget for upcoming years and continuously monitor expenditures.
• As the interface to the site operator, you coordinate building infrastructure measures with internal and external partners.
• Complaints and damage management go through you — from coordination to implementation.
• You plan office space, oversee relocations and help design workplaces.

Facility & Maintenance Manager

Production Engineer

• Planning and execution of feasibility studies for new production processes and manufacturing aids (FMA)
• Providing ad-hoc support in production and ensuring the technical prerequisites for production output in accordance with the production plan
• Contributing to the product development process (PDP) as well as the product-sustaining process
• Designing and implementing new production workflows and actively participating in shop floor management
• Creating and evaluating error documentation during prototype assembly
• Preparing manufacturing documentation and work plans for production

Senior Production Engineer

Engineer

• You are responsible for connecting our production equipment and test benches to our IoT infrastructure.
• You continuously develop our machine connectivity concept.
• You assist with troubleshooting and fault resolution, as well as with performance bottlenecks in machine data communication and the OT network.
• You support security audits, identify potential vulnerabilities and implement measures to ensure OT security.
• You work closely with IT, production and external service providers, acting as the interface between engineering and IT.
• You support Production Engineering in the specification of new production systems and accompany the acceptance and commissioning processes.

OT Engineer – m/f/d

Administration

• Planning, implementation, maintenance and development of the company-wide data network infrastructure in office and production environments.
• Consolidation of requirements from all business units into strategic network planning.
• Ensuring high availability, performance and scalability of the network.
• Performing fault analysis and troubleshooting — including in production-critical network segments.
• Planning, configuration and administration of LAN, WAN, WLAN and industrial networks.
• Continuous optimization of network security components — particularly using Fortinet technologies.
• Implementing security policies in accordance with internal guidelines and external compliance requirements.
• Supporting IT projects such as network modernization, site networking and cloud integration.

Senior Network Administrator

• Responsibility for functional safety within the scope of product development.
• Development of the functional safety concept and specification of safety functions, controllers and sensors.
• Creation of the test plan to validate the safety functions.
• Support for the testing team in preparing test specifications for safety functions.
• Point of contact for customer projects on functional safety.
• Support for product certification processes and liaison with the certification body for any queries.

Engineer for Functional Safety – m/f/d

• You will identify, qualify and develop new business opportunities in hydrogen and power-to-X markets.
• You will leverage your existing network of contacts and customers to generate leads and opportunities.
• You will manage the full sales cycle – from prospecting and solution design to proposal, negotiation, and contract closure.
• You will build and maintain strong relationships with key accounts, EPCs, developers, and industrial customers.
• You will act as a trusted advisor by understanding customer needs and matching them with Quest One’s solutions.
• You will represent Quest One at industry events, conferences and customer meetings.
• You will collaborate with technical and product management teams to ensure proposals are feasible, competitive, and aligned with customer requirements.
• You will contribute to regional sales strategy, pipeline development and forecasting.
• You will provide valuable market intelligence on competitors, pricing and trends in hydrogen and renewable energy.

Senior Sales Manager

• You take overall responsibility for customer documentation and ensure completeness and on-time delivery.
• You coordinate internal operating manuals and external supplier documents into a unified, comprehensive documentation package.
• You proactively request missing documents and ensure project closings and invoicing are not delayed.
• You establish a clear customer documentation process and work closely with all relevant departments.
• You use XML-based authoring systems and standardization and modularization approaches to efficiently create and maintain documentation.
• With your expertise in risk assessment, CE certification, ATEX, pressure equipment and supplier documentation, you ensure compliance with legal requirements.

Customer Documentation Manager

Technical Project Manager

• Technical overall responsibility for development projects in the field of electrolyzers — from the concept phase to series production readiness
• Responsible for achieving technical product and project objectives while ensuring quality, schedule, and budget
• Management of the technical development team and coordination of internal and external development partners
• Development of technical concepts and system architectures for new product generations
• Support for requirements analysis and responsibility for the technical product specification
• Identification of technical and organizational risks and development of appropriate mitigation strategies
• Presentation of project status and risks to top management and stakeholders
• Close collaboration with adjacent departments such as production, procurement, testing, and certification

• Responsible for operating, maintaining, developing and optimizing the existing Microsoft Cloud infrastructure (Azure)
• Manage the IT infrastructure and make decisions that affect the overall solution
• Advise project stakeholders and translate business requirements into designs for cloud and hybrid solutions
• Implement the associated IT architecture and cloud resources
• Design governance and monitoring solutions; data storage and infrastructure solutions; identity solutions and business continuity solutions in collaboration with IT, security experts, network specialists, data architects, DevOps and external service providers
• Ensure end-user support for hardware and software environments
• Install, configure and maintain hardware and software components and provide sustainable resolution of issues
• Manage users in Azure Active Directory (AAD/Entra) and endpoints in Microsoft Endpoint Manager
• Contribute to the design and implementation of IT service processes

Senior Cloud Administrator

• Du übernimmst die Organisation, Steuerung und Sicherstellung der operativen Intralogistik (Wareneingang, Einlagerung & Kommissionierung)
• Du fungierst als Schnittstellenkoordination zwischen Einkauf, Produktionssteuerung, Produktion und Qualität
• Du übernimmst Arbeitspakete zur Weiterentwicklung der logistische Abläufe hin zu Lean Logistics
• Du definierst Lagerplätzen gemäß Lagerstrategie (FIFO)
• Du überwachst die Lagerbestände und führst Inventuren durch
• Du bist für das monitoring von Lagerkennzahlen (Flächennutzung, Umschlag, Soll vs Ist Durchlaufzeiten) verantwortlich und optimierst diese fortlaufend
• Du übernimmst die Einarbeitung neuer KollegInnen
• Du bist für die Einhaltung von Sicherheits- und Qualitätsrichtlinien im Lagerbereich zuständig

Logistikkoordinator

• Planung, Implementierung, Wartung und Entwicklung der unternehmensweiten Datennetzwerkinfrastruktur in Office- und Produktionsumgebungen.
• Aufnahme und Konsolidierung der Anforderungen aller Fachbereiche in der strategischen Netzwerkplanung.
• Sicherstellung der Hochverfügbarkeit, Performance und Skalierbarkeit des Netzwerks sowie Durchführung von Fehleranalysen und Troubleshooting – auch in produktionskritischen Netzsegmenten.
• Planung, Konfiguration und Administration von LAN-, WAN-, WLAN- und industriellen Netzwerken sowie kontinuierliche Optimierung der Netzwerksicherheitskomponenten – insbesondere auf Basis von Fortinet-Technologien.
• Umsetzung von Sicherheitsrichtlinien gemäß interner Vorgaben und externer Compliance-Anforderungen sowie Dokumentation der Netzwerkinfrastruktur und des Netzwerkmonitorings.
• Unterstützung von IT-Projekten wie Netzwerkmodernisierung, Standortvernetzung, Cloud-Anbindung und Segmentierung von Produktionsnetzwerken.
• Technische Beratung und Support für interne IT-Teams und Fachabteilungen sowie Koordination mit externen Dienstleistern, Herstellern und Integratoren.
• Unterstützung bei der Administration und Weiterentwicklung von Microsoft 365-Diensten.

Senior Netzwerk Administrator

• Erfassung, Analyse und Dokumentation von Anforderungen für verfahrenstechnische Anlagen.
• Strukturierung und Pflege von Anforderungen entlang des gesamten Produktentstehungsprozesses (PEP).
• Entwicklung und Etablierung von Prozessen und Methoden für das Requirements Engineering.
• Sicherstellung der Rückverfolgbarkeit und Konsistenz von Anforderungen.
• Begleitung der Validierung von Anforderungen und Erstellung von Testplänen.

Requirements Engineer

• Responsibility for connecting our production equipment and test stands to our IoT infrastructure
• Development of the connectivity concept for machine networking
• Support in troubleshooting and fault diagnosis as well as resolving performance bottlenecks in machine data communication and the OT network
• Support for security audits and implementation of measures to ensure OT security
• Collaboration with IT, production and external service providers and acting as an interface between engineering and IT
• Support for Production Engineering in specifying new production systems and accompanying the acceptance and commissioning process.

OT Engineer

• Du erstellst und optimierst komplexe, technische Dokumentationen wie z.B. Betriebs-, Montage- und Wartungsanleitungen, Funktions- und Systembeschreibungen gemäß DIN EN 82079-1 und relevanter EU-Richtlinien.
• Du arbeitest eng mit den Entwicklungsteams zusammen.
• Du arbeitest mit einem XML-basierten Redaktionssystem (GRIPS) und begleitest den gesamten Prozess von der Erstellung bis zur Übersetzung.
• Du fertigst eigenverantwortlich technische Abbildungen an.
• Du arbeitest eng mit der Entwicklung zusammen und beschaffst die erforderlichen Informationen.
• Du erstellst Sicherheits- und Warnhinweise nach geltenden Normen.
• Du wirkst aktiv bei der Gestaltung neuer Dokumentationsformen mit.
• Du unterstützt bei der Übersetzungskoordination und Terminologiepflege.

Technischer Redakteur

Business Operations

• Key role in the successful implementation of business process management and change initiatives.
• Focus on Business Process Management — from process design and continuous improvement to ensuring compliance.
• Lead process management and the resulting transformation projects.
• Plan, conduct and monitor process audits to ensure adherence to defined processes, work instructions and standards.
• Identify optimization opportunities and remove implementation barriers.
• Identify training and qualification needs and support their appropriate implementation.
• Plan and organize information events, communication campaigns and training to promote process acceptance and competence.
• Document progress and provide regular reporting to project leadership and management.

Business Process Manager – Change & Process Compliance

• You support our People team across the entire recruiting process and gain valuable insights into HR work
• You create and publish job postings, screen applications, make an initial selection and coordinate interviews
• You independently conduct interviews with students and accompany the selection process
• You communicate with candidates and actively contribute to a positive candidate experience
• You maintain our applicant tracking system and assist with administrative tasks
• You contribute to HR projects, for example to further develop our employer branding

Working Student, Intern – Talent Acquisition

QA Automation Engineer

• Planning, programming and commissioning of PLC control systems (Siemens TIA Portal)
• Development and optimization of automation concepts for PEM electrolyzers
• Creation of visualizations (HMI, WinCC Unified) for operation and monitoring of hydrogen production
• Performing fault analyses and troubleshooting
• Documentation of control software and technical processes
• Collaboration with internal departments as well as external partners and customers
• Specification of internal and external control interfaces
• Participation in standardization concepts for automation and their implementation
• Compliance with international regulations and standards, e.g. explosion protection, functional safety and software development standards

Automation Engineer

• You will take ownership of the strategic sourcing and localization of our electrolyzer systems for the North American market
• You will shape supplier relationships, drive commercial outcomes and align technical scopes with packaging partners across North America
• You will lead strategic procurement for electrolyzer modules, adapting a European design to meet U.S. standards and requirements
• You will define and manage work packages, aligning commercial frameworks, technical specs, and delivery milestones
• You will drive supplier negotiations to optimize cost, timeline, and quality across multiple interfaces
• You will act as key interface between engineering, suppliers, and project teams to ensure scope clarity and execution readiness
• You will identify and mitigate commercial and technical risks early in the project lifecycle
• You will initiate and support cost reduction and value engineering initiatives across the supply base
• You will contribute to long-term sourcing strategies that support competitiveness, scalability, and resilience