Christian Tchouta Yonbang
Senior Consultant / Lead Auditor
Experience
Senior Consultant / Lead Auditor
Syngenity GmbH / TÜV Süd
- Support companies to fulfil requirements and to implement following management systems: ISO 9001, ISO 22301, ISO 27001, ISO 27017, ISO 27018, TISAX
- Carrying out internal and external audits regarding the following standards: ISO 9001, ISO 27001, ISO 27017, ISO 27018, TISAX
Client Manager
BSI Deutschland Group GmbH
- Carrying out external audits regarding the following standards: ISO 9001, ISO 27001, ISO 27017, ISO 27018, ISO 22301, WLA-SCS, HDH
Support Manager
Software AG
- Management and maintenance of ALFABET software incidents and ensuring their continuous improvement
- Analyze customer difficulties and incidents, help configure environments
- Record incidents as bugs or change requests for future releases or hotfixes
OSH Manager Representative
Sthree GmbH
- Support Thyssenkrupp Industrial Solutions in converting occupational health and safety management systems from OHSAS 18001 to ISO 45001
- Retain matrix certification across subsidiaries in South Africa, Germany, China, India and Italy
External Auditor / Trainer
3 Cert GmbH
- Carrying out external audits related to ISO 9001 version 2015
- Providing recommendations to issue customer certificates
T-Systems Multimedia Solutions
- Migration of SAP systems to a new data center for SCHOTT AG: ensure operational continuity and data security during transfer (Role: Quality and Information Security Manager)
- Digitization of toll processes for Toll Collect GmbH: digitize the truck toll system using magnetic cards and automate toll collection (Role: Software Tester)
- VPNs for business customers for NGENA GmbH: provide comprehensive, integrated, fully automated, flexible and easy-to-use connectivity services through a global cloud platform (Role: Test and Quality Manager)
Test and Quality Manager
Viessmann IT Service GmbH
- Establishing a policy and strategy for the quality of software developed in the Viessmann Group
- Continuous improvement of quality assurance processes and their documentation
- Internal audit of the quality management system processes
Graduate Student
IT-Systemhaus evosoft GmbH
- Pre-audit according to ISO 9001:2008 including a vulnerability analysis of the quality management system and presentation with recommendations for improvements
Test Engineer
Landesbank Berlin AG
- Creation of specifications and structured tests
- Review and validation of the implemented software
- Analysis of results
Working Student
Siemens AG
- Analysis and optimization of business processes
- Creation of process documentation
- Development of specifications in requirements management
- Process evaluation and improvements
Industries Experience
See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.
Experienced in Professional Services (5 years), Manufacturing (5 years), Information Technology (3 years), Transportation (2.5 years), Telecommunication (2.5 years), and Banking and Finance (1 year).
Business Areas Experience
The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.
Experienced in Quality Assurance (10.5 years), Information Technology (3.5 years), Audit (2 years), Business Intelligence (1 year), Operations (1 year), and Customer Service (0.5 years).
Summary
Certified Lead Auditor and Management Systems Expert with strong experience in ISO 9001, ISO 27001, ISO 22301, ISO 27017, and ISO 27018. I support organizations—particularly SMEs—in the design, implementation, optimization, and certification of management systems in a pragmatic and cost-effective way.
With a solid background in information security, business process management, and digital transformation, I work as a freelance auditor and consultant for international certification bodies and enterprises. I am also the founder of a cloud-based SaaS platform dedicated to simplifying management systems implementation, strategic alignment, risk management, and compliance monitoring.
My mission is to make management systems accessible, practical, and value-driven, helping organizations improve performance, ensure compliance, and achieve sustainable growth.
Certified Lead Auditor and expert in management systems with solid experience in the ISO 9001, ISO 27001, ISO 22301, ISO 27017, and ISO 27018 standards. I support small and medium-sized enterprises (SMEs) in the pragmatic, efficient, and cost-conscious implementation, optimization, and certification of management systems.
My professional focus is on information security, business process management, and digital transformation. As a freelance auditor and consultant, I collaborate with international certification bodies and companies. In addition, I am the founder of a cloud-based SaaS solution to simplify management systems implementation, strategic alignment, risk management, and compliance monitoring.
My goal is to make management systems practical, easy to understand, and value-adding, helping organizations achieve sustainable performance improvements and comply with standards.
Languages
Education
Technical University of Berlin
Diploma, Industrial Engineering · Industrial Engineering · Berlin, Germany
Certifications & licenses
ECQA Certified Software System Service Process Improvement (SPI) Manager
Expert ISO 22000 – IT Service Management
Expert ISO 27019 – Information Security controls for energy utility industry
Expert ISO 29100 – Privacy framework
Expert ISO 29151 – Protection of PII
Expert ISO 45001 - occupational safety management system
ISTQB Certified Test Manager Advanced Level
ISTQB Certified Tester Fondation Level
Lead Auditor ISO 22301 – Business Continuity Management System
Lead Auditor ISO 27001 – Information security management system
Lead Auditor ISO 27017 – Information security in cloud computing
Lead Auditor ISO 27018 – Protecting PII in Public Clouds
Lead Auditor ISO 9001 – Quality Management System
Lead Tutor ISO 9001 Trainings
Profile
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