Maintenance Management Experts in Essen

Sandro U.

HSE Expert

Last position:

HSE Manager at Ullertec GmbH

As Managing Director of Ullertec GmbH, my focus is on advising and supporting companies in the areas of occupational health and safety, workplace safety, and operational safety organization.

As a specialist for occupational safety, I support companies with safety-related services in accordance with DGUV Regulation 2, the creation and further development of risk assessments, operating instructions, and occupational safety organizations, as well as with site inspections, safety committee meetings, and the implementation of legal requirements.

Ullertec GmbH, based in Bochum, has established itself as a specialized service provider for occupational health and safety in the Ruhr area and in North Rhine-Westphalia. Our customers include companies and organizations from industry, production, logistics, skilled trades, services, and public or municipal sectors.

In addition to working as an external specialist for occupational safety, our services also include fire protection, safety and health coordination (SiGeKo), expert noise measurements, inspections of work equipment, and practical training and instruction.

A key success is the continuous building of long-term safety-related support relationships and a growing customer base. In doing so, we combine many years of industry experience with modern, structured health and safety consulting.

Our goal is not to represent health and safety only on paper. We analyze workplaces, machines, and operational processes directly on site and develop clear measures that can be implemented economically.

Ullertec stands for practical, structured, and reliable health and safety from Bochum - across the Ruhr area, in North Rhine-Westphalia, and for selected services nationwide.

Andreas H.

Paint Department Manager

Essen

Last position:

Paint Department Manager at Montaplast GmbH

Disciplinary and technical leadership of the paint production area with series production, polishing and rework, surface technology, robot application technology, and paint line technology
Weekly reporting of key figures such as overall equipment effectiveness (OEE), machine utilization, setup times, scrap/rework rate, productivity per employee, and absence rate
Ensuring the availability of personnel, material, equipment, and paint systems
Continuous development of employees, processes, standards, and the organizational structure
Implementation and establishment of lean management principles for waste-free production and continuous improvement process (CIP)
Planning and implementation of investments as well as budget responsibility
Targeted project coordination through to successful completion
Derivation and implementation of annual goals as well as individual target agreements with employees
Fulfillment of employer duties with regard to occupational, environmental, and health protection

Arndt M.

Project Manager for ServiceNow Vulnerability Response

Mülheim an der Ruhr

Last position:

Project Manager for ServiceNow Vulnerability Response at Union Investment Services & IT GmbH

Led the subproject for implementing Vulnerability Response as part of DORA
Documented the current processes in compliance, risk & security
Created the functional design for introducing application, infrastructure, and cloud vulnerabilities
Agile management of the integration service provider, the technical department, and the company's cross-functional teams
Integrated the V scanners Tenable, Qualys and Defender, as well as NVD and CISA/KEV
Integrated GitLab Ultimate for importing and processing SBOMs
Developed automation rules to match scan results with CIs in the CMDB, assign vulnerabilities and remediation tasks, handle approvals (false positives, exceptions) and closures
Calculated multiple risk scores and priorities
Defined dashboards and reports (Workspaces, Performance Analytics)
Aligned the new processes, especially to improve the CMDB data quality (according to CSDM)

Jean Erge E.

Engineer - Automation Technology

Last position:

Engineer - Automation Technology at Ravensburg Milchwerke GmbH

Plan and design complex production facilities as part of a team
Prepare and modify electrical circuit diagrams
Design electrical machine controls and drive technology
Analyze faults in electronic assemblies
Create PLC and visualization software as well as process control software
Identify and implement optimization measures
Prepare operating instructions
Ensure IT security for the entire operational technology
Support building technology
Technologies: Eplan P8, PCS7, ProLeiT, PlantiT, TIA, S7

Ali A.

AI Safety & LLM Evaluation Consultant | Adversarial Testing | Multilingual AI Quality

Last position:

AI Prompt Evaluator / AI Quality Specialist at TELUS Digital

Conduct structured evaluation of LLM outputs using Content Review Standards (CRS) and AI safety frameworks.
Assess responses across high-risk domains including violence and criminal facilitation.
Assess responses across high-risk domains including hate speech and harassment.
Assess responses across high-risk domains including suicide and self-harm.
Assess responses across high-risk domains including regulated advice (medical, legal, financial).
Assess responses across high-risk domains including misinformation and fabricated claims.
Assess responses across high-risk domains including defamation and intellectual property.
Assess responses across high-risk domains including child safety and sexual exploitation.
Assess responses across high-risk domains including political and sensitive content.
Apply youth-protection and age-appropriateness guidelines to prevent unsafe facilitation or restricted substance guidance.
Classify prompts as adversarial, borderline, or benign based on contextual intent and risk analysis.
Evaluate model behavior types including correct refusal, partial refusal, over-refusal, under-refusal, improper compliance, and ignorance-based outputs.
Identify policy misapplications and user-intent misinterpretation patterns.
Designed structured adversarial and borderline multi-turn conversation flows to stress-test AI boundary enforcement and reasoning stability.
Identified failure modes including hallucination, unsafe compliance, excessive refusal, contextual drift, and inconsistent safety logic.
Applied a structured four-dimension evaluation rubric covering accuracy & safety, relevance & completeness, clarity & structure, and tone & appropriateness.
Provided structured feedback supporting supervised fine-tuning and reinforcement learning from human feedback processes.
Rewrote unsafe or misaligned outputs into compliant, accurate, and helpful responses.
Performed Persian ↔ English translation and translation validation of AI-generated content.
Assessed semantic accuracy, contextual consistency, and safety alignment across languages.
Identified mistranslations, cultural nuance issues, and cross-lingual policy inconsistencies.
Recognized with the Above & Beyond Award – Q3 2025 for exceeding quality standards and embracing innovation.

Stephan A.

CFO / Managing Director

Last position:

CFO / Managing Director at EP Power Minerals GmbH

Subsidiary of the EPH Group, €250 million in revenue, 20 companies, 200 employees
Responsibility for controlling, finance, IT, HR, procurement, project management/M&A, legal/compliance, accounting, and taxes
Corporate management and transformation
Preparation and support of the company sale (STEAG → EPH)
Establishment of a new headquarters (finance, IT, legal, HR, etc.)
Strategic and operational controlling
Post-merger integration of foreign companies (BE, NL, FI, FR)
Execution of M&A processes (buy & sell side)
Company-wide process analysis and preparation for SAP S/4HANA
Carve-out and post-merger integration
Consistent implementation of digitization and efficiency measures
Finance and accounting

Michael H.

Production Manager Downstream (interim)

Recklinghausen

Last position:

Production Manager Downstream (interim) at Magna

Supported implementation of new products
Improved overall equipment effectiveness (OEE)
Improved daily line efficiency (DLE)
Enhanced headcount performance
Created a lean and efficient reporting system

Farnaz R.