Christian Taeschner - Quality Expert, Consultant & Enthusiast

Q: Where is Christian based?

Christian is based in Kranenburg, Germany and can operate in on-site , hybrid , and remote work models.

Q: What languages does Christian speak?

Christian speaks the following languages: German (Native), English (Advanced), Greek (Elementary), Spanish (Elementary) .

Q: How many years of experience does Christian have?

Christian has at least 21 years of experience. During this time, Christian has worked in at least 7 different roles and for 6 different companies . The average length of individual experience is 3 years and 8 months . Note that Christian may not have shared all experience and actually has more experience.

Q: What is Christian's latest experience?

Christian's most recent position is Quality Expert, Consultant & Enthusiast at Quality Consulting Taeschner .

Q: What companies has Christian worked for in recent years?

In recent years, Christian has worked for Quality Consulting Taeschner and Expleo Technology Germany GmbH .

Q: Which industries is Christian most experienced in?

Christian is most experienced in industries like Telecommunication , Automotive , and Professional Services . Christian also has some experience in Information Technology (IT) .

Q: Which business areas is Christian most experienced in?

Christian is most experienced in business areas like Quality Assurance (QA) , Project Management , and Information Technology (IT) . Christian also has some experience in Sales and Strategy and Planning .

Q: Which industries has Christian worked in recently?

Christian has recently worked in industries like Automotive , Professional Services , and Information Technology (IT) .

Q: Which business areas has Christian worked in recently?

Christian has recently worked in business areas like Project Management , Information Technology (IT) , and Quality Assurance (QA) .

Recommended expert

Kranenburg, Germany

Experience

Oct 2025 - Present

5 months

Hybrid

Quality Expert, Consultant & Enthusiast

Quality Consulting Taeschner

Consulting and developing tailored test strategies, quality concepts, and quality governance structures
Advising on the use of artificial intelligence with a focus on AI-supported test strategies (test design, tools, automation)
Testing AI systems and AI-supported solutions (e.g., guardrails, non-deterministic behavior, ethical and adversarial scenarios)
Consulting and developing AI governance and compliance guidelines
Analyzing, designing, and optimizing test processes
Planning and conducting quality audits
Developing and moderating quality workshops
Test management for digital ecosystems
Quality management: business and process analysis
Change, transition, and project management
Identifying and providing suitable specialist resources
Training seminars and courses for quality and test managers, product owners, and project managers on effective QA strategies and methods
Professional mentoring and consulting for leaders in quality-focused management roles
Teaching test fundamentals, design, and methods for IT professionals or career changers

Jan 2024 - Jun 2025

1 year 6 months

Wolfsburg, Germany

Hybrid

Business Development Manager

Expleo Technology Germany GmbH

Business development in the quality and testing environment of a leading automotive manufacturer
Identifying business opportunities, strategic realignments, and expansions of the service portfolio
Analyzing tenders (RfQ/RfP) for IT, testing, and quality services
Developing proposal strategies and solution concepts, including cost and offshoring models
Coordinating with delivery units on qualified and scalable delivery models
Managing internal stakeholders (sales, delivery, finance, legal, procurement) during proposal phases
Creating calculations, assumptions, and risk assessments for framework contracts and large projects
Project and transition management for newly acquired customer programs

Jan 2021 - Dec 2023

3 years

Wolfsburg, Germany

Client Engagement Manager

Expleo Technology Germany GmbH

Project and delivery management for customer programs in testing, QA, and digital transformation in multi-project environments of a leading automotive manufacturer
Central interface for customer stakeholders, including aligning scope, budget, roadmap, and priorities
Capacity and workload management across national and international delivery teams from near/offshore locations
Identifying efficiency potentials for cross-departmental cost reduction and optimized resource utilization in projects
Drafting and negotiating project contracts, work packages, and service changes
Project contract and environment analysis for new projects under framework agreements
Creating solution concepts and test strategies
Developing effort-based calculations and risk assessments
Establishing quality metrics and reporting on progress, quality, and cost-effectiveness
Risk and escalation management focused on stabilizing projects and delivery quality
Identifying upselling and cross-selling opportunities in the existing customer portfolio

Feb 2019 - Dec 2020

1 year 11 months

Wolfsburg, Germany

Senior Test Manager / Quality Consultant

Expleo Technology Germany GmbH

Test and quality management for strategic customer projects and programs of a leading automotive manufacturer
Designing reliable test strategies based on business, system, and architecture requirements
Planning and coordinating test design, execution, and defect management
Creating quality reports and go-live recommendations for project and program management
Advising on test process improvements, tool selection, and test automation strategies
Supporting the setup of test organizations, role models, and coordination routines
Coaching test teams in test methodology, documentation, and stakeholder communication

Jul 2016 - Feb 2019

2 years 8 months

Wolfsburg, Germany

Hybrid

Senior Test Manager / Quality Consultant

SQS AG

Test management for connected car platforms and backend service landscapes for European and Chinese models, including market-specific requirements for a leading automotive manufacturer
Design and implementation of a global test strategy across all target markets
Analyzing market-dependent functional scopes and requirements
Synergistic optimization of test and automation strategies for market-independent functions and technologies
Coordinating and planning test activities to ensure functional and non-functional requirements
Managing backend, API, frontend, and integration tests in complex connected scenarios
Planning and executing UAT, release, and go-live scenarios
Developing migration test strategies for the transition from on-premise systems to cloud-hosted services and frameworks
Designing test strategies for migrating proprietary API technologies to MQTT-based interfaces
Close coordination with international teams on roadmaps, test windows, and integration points
Advising on test process improvements, tool selection, and test automation strategies

Oct 2013 - Jun 2016

2 years 9 months

Witten, Germany

Head of Solution Test, SME

Unify GmbH & Co. KG

Test management and quality responsibility for UC/communication solutions in the small and medium enterprise sector
Design and oversight of ecosystem, interoperability, and certification tests with partners and third-party vendors
Ensuring cross-solution end-to-end scenarios in complex system landscapes
Strategic planning and coordination of field trial projects for national and international customers and channel partners
Planning and coordination of migration and upgrade scenarios, including field and beta validation
Definition of test and release strategies for product launches and major releases
Enablement and training of sales and partner organizations to position the solutions

Oct 2006 - Sep 2013

7 years

Witten, Germany

Project Manager / Test Manager

Siemens Enterprise Communications GmbH & Co. KG

Test management for the OpenScape Office and OpenScape Business product lines
Project leadership for testing and releasing software extension modules for small and medium communication systems
Design and execution of regression, integration, and system tests (GUI, system, hardware & software devices, CTI applications, voice-over-IP and network components, multi-node, and trunking)
Planning and coordination of release, acceptance, and rollout tests
Leading national and international test teams across multiple locations
Ensuring interoperability with third-party systems, gateways, and providers
Definition and maintenance of test and release procedures, including upgrade and migration paths
Coordination of solution teams for hot and focal account support
Responsibility for test, release, and change management in complex system landscapes

Jun 2003 - Oct 2005

2 years 5 months

Witten, Germany

Test Analyst / Test Manager

Siemens AG

Test management for the HiPath 3000/HG 1500 product lines
Design and execution of regression, integration, and system tests (GUI, system, hardware & software devices, CTI applications, voice-over-IP and network components, multi-node, and trunking)
Planning and coordination of release, acceptance, and rollout tests
Building and enhancing test automation with IBM Rational Robot for communication systems
Ensuring interoperability with gateways and providers
Definition and maintenance of test and release procedures
Hot and focal account support for critical customer systems, including direct error analysis and solution development
Reproduction of error scenarios in test environments, development of suitable retest scenarios, and derivation of measures for sustainable problem prevention

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 Telecommunication (12 years), Automotive (9 years), Professional Services (2 years), and Information Technology (0.5 years).

Telecommunication

Automotive

Professional Services

Information Technology

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 (20 years), Project Management (11.5 years), Information Technology (8 years), Sales (1.5 years), and Strategy (1.5 years).

Quality Assurance

Project Management

Information Technology

Sales

Strategy

Summary

My name is Christian Taeschner and I am an innovation-driven test strategist and passionate software quality consultant with over 25 years of professional experience in software quality assurance. My technical expertise spans a wide range from embedded hardware & software solutions and classic on-premise systems to mobile and desktop apps, up to highly complex cloud architectures.

Today, I help companies with hands-on advice on test strategies and test processes, lead test management, and support teams and leaders with targeted coaching and mentoring for sustainable quality development. My mission is to help companies develop digital products with the highest quality standards.

Skills

Domain Expertise

Communications: Openscape, Pbx, Voip, Cti, Callcenter, Sip, Trunking, Network, Ldap
Automotive: Connectedcar, Infotainment, Car2x, E-mobility, Charging Stations, Backend
Ecosystems: Cloud/onpremise, Canoe, Vector Simulation
Platforms/protocols: Mobile, Android, Ios, Desktop Apps, Web, Html, Sql, Css, Javascript, Rest, Accessibility, Monitoring, Mqtt, Json
Artificial Intelligence: Semantic Testing Approach, Language Models, Agentic Ai, Automation

Certified Method Competencies

Istqb
Scrum (Psm)
Safe (Leading Safe)
Ipma
Itil
A-spice
Project Management (Classic & Agile)
Risk-based Testing

Management Skills

Test Management
Quality Management
Program & Multi-project Management
Client Engagement
Key Account
Transition
Ola/sla
Change Management
Risk Management
Leadership
Coaching
Staff Development
Supplier & Stakeholder Management

Technical Focus

Test Strategy & Architecture
E2e/backend/api
Ai-driven Testing
Test Design
Requirements Management
Kpi Design & Quality Metrics
Test Automation
Non-functional (Load/performance, Stability)
Acceptance Criteria & Release Readiness

Soft Skills

Customer Focus
Quality Awareness & Passion
Communication
Analytical Thinking & Prioritization
Negotiation Skills
Conflict Resolution
Storytelling For Decision Makers
Resilience
Cross-cultural & Empathic Team Leadership
Self-responsibility
Result Orientation

Tools

Project Management/kpis: Jira, Confluence, Ms Project
Test Management/alm: Xray, Zephyr, Mf Alm, Ot Octane
Defect Management: Mrts, Kpm (Proprietary Customer Systems)
Ci/cd & Automation: Mf Uft, Junit, Soapui, Kubernetes, Docker, Github, N8n, Selenium
Ai Ecosystems: Lm Studio, Comfyui
Llms: Chatgpt, Gemini, Mistral, Copilot, Claude, Llama
Generative Models: Flux, Hidream, Nanobanana, Dalle-e
Productivity/collaboration: Excel, Powerpoint, Word, Sharepoint, Teams, Zoom, Miro

Languages

German

Native

English

Advanced

Greek

Elementary

Spanish

Elementary

Education

Sep 2000 - May 2003

Siemens AG

Vocational Training as IT Specialist in System Integration · IT Specialist – System Integration · Düsseldorf, Germany

Certifications & licenses

A-Spice

Ipma

Istqb

Itil

Safe (Leading Safe)

Scrum (Psm)

Profile

Created

February 2026

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Christian based?

Christian is based in Kranenburg, Germany and can operate in on-site, hybrid, and remote work models.

What languages does Christian speak?

Christian speaks the following languages: German (Native), English (Advanced), Greek (Elementary), Spanish (Elementary).

How many years of experience does Christian have?

Christian has at least 21 years of experience. During this time, Christian has worked in at least 7 different roles and for 6 different companies. The average length of individual experience is 3 years and 8 months. Note that Christian may not have shared all experience and actually has more experience.

What roles would Christian be best suited for?

Based on recent experience, Christian would be well-suited for roles such as: Quality Expert, Consultant & Enthusiast, Business Development Manager, Client Engagement Manager.

What is Christian's latest experience?

Christian's most recent position is Quality Expert, Consultant & Enthusiast at Quality Consulting Taeschner.

What companies has Christian worked for in recent years?

In recent years, Christian has worked for Quality Consulting Taeschner and Expleo Technology Germany GmbH.

Which industries is Christian most experienced in?

Christian is most experienced in industries like Telecommunication, Automotive, and Professional Services. Christian also has some experience in Information Technology (IT).

Which business areas is Christian most experienced in?

Christian is most experienced in business areas like Quality Assurance (QA), Project Management, and Information Technology (IT). Christian also has some experience in Sales and Strategy and Planning.

Which industries has Christian worked in recently?

Christian has recently worked in industries like Automotive, Professional Services, and Information Technology (IT).

Which business areas has Christian worked in recently?

Christian has recently worked in business areas like Project Management, Information Technology (IT), and Quality Assurance (QA).

What is Christian's education?

Christian attended Siemens AG for IT Specialist – System Integration.

Does Christian have any certificates?

Christian has 6 certificates. Among them, these include: A-Spice, Ipma, and Istqb.

What is the availability of Christian?

Christian is immediately available full-time for suitable projects.

What is the rate of Christian?

Christian's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.