You're seeing this page as if you were . The main menu is still yours, though. Exit from immersion
Sergej SchleicherSS

Sergej Schleicher

Customer Experience & Market Research Manager

€500/day
Dortmund, DE
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
Back to original language

About Sergej

I have many years of experience in the holistic support and implementation of market research and CX projects in various companies. This includes customer feedback systems such as NPS surveys (relational & transactional), CSAT, CES etc.
But also market studies (Brand study, price image etc.)

Analytics:
- SPSS
- R-Studio
- STATA
- SQL
- PowerBI

Survey:
- Qualtrics
- SurveyMonkey
- Easyfeedback

Previous collaboration with the following panel providers:
- Appinio
- Payback
- dynata
- SKOPOS
- YouGov
  • German

    Native or bilingual

  • English

    Conversational

Can work on-site
Dortmund (up to 50km)

Experience

  • Deutsche Glasfaser Wholesale GmbH,
    Customer Experience Manager
    TELECOMMUNICATIONS
    October 2025 - March 2026 (5 months)
    46325 Borken, Germany
    • ● Holistic conception and implementation of CX projects along the entire customer journey
    • ● Consulting and support of internal stakeholders
    • ● Derivation of measures in close coordination with the specialist departments
    • ● Presentation and discussion of findings at different levels
    • ● Combination of company data and survey data in PowerBI
    Customer Experience Stakeholder Management Data Analysis Reporting Presentation
  • flaschenpost SE,
    Market Research Manager
    E-COMMERCE
    September 2022 - September 2025 (3 years)
    48 Münster, Germany
    • ● Holistic support of market research projects within the framework of the "Voice of the Customer" program. Including:
    • ● Topic and target group selection
    • ● Questionnaire design
    • ● Study execution and management
    • ● Data preparation and analysis
    • ● Presentation and discussion of findings at different levels
    • ● Consulting and support of internal stakeholders
    Customer Experience Stakeholder Management Data Analysis Reporting SQL
  • Institut Arbeit und Technik (IAT),
    Research Assistant
    RESEARCH
    January 2022 - August 2022 (7 months)
    45 Gelsenkirchen, Germany
    Work and change
    • ● Project management: Evaluation of the implementation of the GVWG (including quantitative analyses and expert interviews with chairpersons of the sponsoring organizations etc.)
    • ● Conducting qualitative and quantitative surveys and analyses for the nursing staff potential study "I would nurse again if..."
    Data Analysis Data Analysis Data Analysis

Recommendations

Be the first to recommend Sergej

Help this freelancer shine by sharing your experience working together.

These freelancer profiles also match your criteria

AgathaA

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

2

BaptisteB

Baptiste Duhen

Fullstack developer

4.6

(4)

5

AmedA

Amed Hamou

Senior Lead Developer

4

(2)

7

AudreyA

Audrey Champion

Web developer

4.3

(3)

4

Education

  • Master of Arts
    Ruhr University
    2021
    Master of Arts
  • Bachelor of Arts
    University Duisburg-Essen
    2018
    Bachelor of Arts

Categories

  • Other