Quest One

Security Engineer

• Responsibility for the design, implementation and continuous development of the IT and OT security strategy.
• Participation in operational security tasks, including log analysis, incident response, vulnerability management and coordination of penetration tests.
• Establishment and maintenance of a comprehensive security architecture for IT and OT environments.
• Implementation and support of security tools such as SIEM, EDR, firewalls, IDS/IPS, IAM and OT monitoring solutions.
• Execution and support of audits in accordance with ISO 27001, IEC 62443 and KRITIS requirements.
• Conducting risk analyses and deriving appropriate protective measures against cyber threats.
• Close collaboration with IT, OT, production and external service providers.
• Advising management on risks, compliance requirements and investments in the security landscape.

Information Security Officer

• Development, implementation and maintenance of security concepts for OT environments (Industrial Control Systems, SCADA, PLCs).
• Ensuring compliance with relevant standards and legal requirements (e.g. the Cyber Resilience Act, EU Data Act, IEC 62443 standard, the Machinery Regulation, and NIS 2).
• Conducting risk analyses and threat assessments for OT systems and advising on the selection and integration of secure components and architectures.
• Creating security policies, training staff on OT security, and closely collaborating with internal teams and external partners.

OT Security Expert – m/f/d

Accountant

• Develop a robust, sustainable IFRS-focused accounting function in accordance with group policies.
• Responsible for the timely monthly upload of financial results into the parent company's reporting and consolidation systems.
• Take ownership of process implementations and map these processes in the ERP system.
• Responsible for IFRS–HGB reconciliation (IFRS to German GAAP).
• Provide support to the accounting team as needed.
• Contribute to the year-end closing and communicate professionally with external auditors and the parent company's internal audit team.
• Serve as the point of contact for tax matters related to IFRS with the parent company.
• Handle ad-hoc requests and take on ad-hoc projects.

Accountant, IFRS & Processes

Engineering Manager

• Technical responsibility for electrical engineering in large-scale electrolyzer projects.
• Execution of concept, basic and detailed engineering for medium- and low-voltage systems, transformers, switchgear and UPS systems, grounding and lightning protection systems as well as lighting and cable trays.
• Preparation and review of electrical load lists, single line diagrams (SLDs), protection and selectivity concepts, and grid connection requirements.
• Development and review of technical specifications, calculations and documentation for electrical installations and components.
• Interdisciplinary interface coordination with process engineering, mechanical engineering, E&I/Instrumentation & Control, layout and civil/structural engineering.
• Close coordination with internal specialist departments and ensuring compliance with standards, guidelines and project specifications.
• Conducting supplier meetings, technical evaluations and design reviews.
• Supporting procurement and project management with tenders, risk assessments and change management processes.
• Site visits to support installation, commissioning and troubleshooting.
• Active contribution to the further development of engineering standards, tools and best practices.

Electrical Project Engineering Manager

Learning and Development

• Diagnosis of cultural and organizational challenges through interviews, data analysis, and direct observation.
• Design of targeted culture and organizational development interventions linked to business and performance objectives.
• Hands-on implementation and sustainable embedding of initiatives in leadership and team routines.
• Facilitation of workshops, leadership sessions, and team interventions with a focus on concrete behavioral change.
• Close collaboration with leaders to strengthen accountability, decision-making quality, and performance-oriented leadership.
• Definition of success metrics, tracking of impact, and continuous adjustment of initiatives based on results and feedback.

Organizational Development & Culture Manager

People Operations

• Erstellung von Arbeits- und Zwischenzeugnissen
• Pflege von Daten im System sowie in analogen Unterlagen
• Zuarbeit im Bereich der Entgeltabrechnung, insbesondere bei Krankmeldungen und der Betreuung von Werkstudent*innen
• Unterstützung beim Onboarding neuer Mitarbeitender
• Mitwirken bei der professionellen Bearbeitung von Anfragen der Mitarbeitenden im Tagesgeschäft
• Betreuung des Zeiterfassungssystems HR Works
• Unterstützung bei Bedarf im allgemeinen People-&-Culture-Bereich

Werkstudent People, w/m/d

Risk

• Research best practices, frameworks, and regulatory requirements
• Update and organize governance-related documents
• Handle relevant tickets and requests from the business units
• Support meetings, workshops, and communication with stakeholders
• Analyze IT processes and identify opportunities for improvement

Working Student IT Governance

Manager

• Full responsibility for internal and external coordination of the entire supplier management process.
• Validation of schedules and conducting commitment meetings for components.
• Ensuring supply that meets quality, timing and capacity requirements.
• Management and oversight of the timely, quality-compliant production of systems, tools and production equipment at international suppliers, plant builders and toolmakers.
• Tracking of agreed first-sample dates as part of maturity verification for critical purchased parts.
• Initiation and implementation of appropriate special measures in case of schedule deviations, and ensuring status-appropriate supply during pre-series and production ramp-up (delivery quantities, dates, customer readiness).
• Support for supplier factory preparation within Greenfield and Brownfield projects.
• Site visits to support cost analyses, tooling relocations, scrappage actions, bottleneck situations, insolvency cases, or operational disruptions.

Supplier Manager

• Preparation of employment references and interim references
• Maintenance of data in the HR system as well as in paper records
• Assistance in payroll, particularly with sickness notifications and support for working students
• Support for onboarding new employees
• Contributing to the professional handling of employee inquiries in day-to-day business
• Administration of the time tracking system HR Works
• Providing ad-hoc support in the general People & Culture area

Working Student - People

• Preparation of employment and interim references.
• Maintenance of data in the HR system as well as in analogue records.
• Support for payroll, particularly handling sick leave notifications and supporting working students.
• Assistance with onboarding new employees.
• Contributing to the professional handling of employee enquiries in day-to-day operations.
• Management and support of the time-tracking system HR Works.
• Providing support as needed across the general People & Culture area.

Software Engineer

• Support in the development of innovative PEM electrolyzers
• Creation of calculation templates for component selection
• Handling equipment documentation and preparing specifications
• Analysis and processing of plant data
• Participation in cross-functional coordination with other departments

Working Student Process Engineering

• Betrieb, Aktualisierung und Instandhaltung des ERP Systems SAP S/4hana Public Edition.
• Umsetzung von neuen Prozessen in SAP in Verbindung mit den direkten Kolleg*innen sowie externen Dienstleistern.
• Annahme und Bearbeitung von Ticketanfragen im 1st Level Support.
• Dokumentation von bestehenden Prozessen.
• Anwendersupport im SAP Umfeld.
• Einbringung von Ideen und Vorschlägen für die persönliche Weiterentwicklung.

Werkstudent SAP Application Services

• Verantwortung für das Thema funktionale Sicherheit im Rahmen einer Produktentwicklung.
• Erarbeitung des funktionalen Sicherheitskonzepts und Spezifikation der Sicherheitsfunktionen, Regler und Sensoren.
• Entwicklung des Testplans zur Validierung der Sicherheitsfunktionen.
• Unterstützung des Testing Teams beim Erstellen der Testspezifikationen für die Sicherheitsfunktionen.
• Ansprechpartner für Kundenprojekte zum Thema funktionale Sicherheit.
• Unterstützung des Zertifizierungsprozesses der Produkte und Ansprechpartner für die Zertifizierungsstelle bei Rückfragen.

Information Security Officer

OT Security Expert – m/f/d

Accountant, IFRS & Processes

Electrical Project Engineering Manager

Organizational Development & Culture Manager

Werkstudent People, w/m/d

Working Student IT Governance

Supplier Manager

Working Student - People

Working Student - People

Working Student Process Engineering

Werkstudent SAP Application Services

Ingenieur für Funktionale Sicherheit, w/m/d