Carsten Rösner - Enterprise Product Owner / CTO

Q: Where is Carsten based?

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

Q: What languages does Carsten speak?

Carsten speaks the following languages: German (Native), English (Advanced) .

Q: How many years of experience does Carsten have?

Carsten has at least 35 years of experience. During this time, Carsten has worked in at least 6 different roles and for 4 different companies . The average length of individual experience is 5 years . Note that Carsten may not have shared all experience and actually has more experience.

Q: What is Carsten's latest experience?

Carsten's most recent position is Enterprise Product Owner at opta data IT GmbH .

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

In recent years, Carsten has worked for opta data IT GmbH .

Q: Which industries is Carsten most experienced in?

Carsten is most experienced in industries like Information Technology , Media and Entertainment , and Healthcare .

Q: Which business areas is Carsten most experienced in?

Carsten is most experienced in business areas like Information Technology , Product Development , and Quality Assurance . Carsten also has some experience in Strategy , Operations , and Human Resources .

Q: Which industries has Carsten worked in recently?

Carsten has recently worked in industries like Information Technology .

Q: Which business areas has Carsten worked in recently?

Carsten has recently worked in business areas like Information Technology , Product Development , and Strategy .

Recommended expert

Winterberg, Germany

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Experience

Jan 2024 - Present

2 years 7 months

Essen, Germany

Enterprise Product Owner

opta data IT GmbH

Product responsibility for the central platform "one" as a group-wide web-based customer portal
Coordination of the connection of 20 group companies to the product platform
Derivation and steering of a group-wide product strategy and roadmap aligned with company goals
Prioritization and bundling of strategic requirements from the various group companies
Harmonization of different interests and moderation of complex decision-making processes at management level
Ensuring the technical and business integration of the product into existing system landscapes, business processes, and business models
Building transparent governance and decision-making structures for group-wide product development
Representation of the product towards internal and external stakeholders at leadership level

Jan 2021 - Dec 2023

3 years

Essen, Germany

Senior Development Manager

opta data IT GmbH

Overall responsibility for building and further developing an interdisciplinary unit made up of software development, quality assurance, and DevOps, including strategic workforce planning, recruiting coordination, conducting selection interviews and salary negotiations, as well as establishing structured onboarding and development processes
Professional and disciplinary leadership of the teams
Responsibility for budget planning, cost control, and economic target achievement of the overall project, including review and approval of incoming invoices
Design, introduction, and continuous improvement of scalable agile working models (including Scrum and Kanban) as well as their sustainable organizational anchoring
Steering of product development in the role of Enterprise Product Owner and as technical and strategic advisor to management, including regular management briefings and decision support
Building and developing leaders within the area, especially team leads and lead development
Building a company-wide information security and quality management system as well as successful preparation and execution of the ISO 27001 initial certification

Oct 2018 - Dec 2020

2 years 3 months

Essen, Germany

Department Head IT / CTO

opta data IT Solutions GmbH

Leadership and further development of a software development department (development, QA, DevOps, design)
Personnel and budget responsibility > €4 million, 8 teams, 82 employees, 3 locations
Responsibility for steering, coordination, and successful implementation of complex IT projects and development processes.
Design and architecture of modern software solutions as well as creation of detailed functional concepts.
Continuous optimization of development processes and introduction of forward-looking technologies and working methods.
Interface management between departments as well as regular reporting to the management.
Successful implementation of strategic initiatives, including the introduction of new software generations, organizational development, and employee support.

Jan 2000 - Oct 2018

18 years 10 months

Essen, Germany

Head of Software Development

opta data hard- und software GmbH

Leadership and further development of a software development department (development, QA, product management)
Personnel and budget responsibility > €2.5 million
Transformation of legacy COBOL-based products to J2SE and later J2EE-based applications
Development of supporting native apps for iOS and Android

Aug 1997 - Jan 2000

2 years 6 months

Essen, Germany

Software Developer

opta data hard- und software GmbH

Development and enhancement of software modules
Bug fixing (COBOL)

Jan 1995 - Jul 1997

2 years 7 months

Munich, Germany

Theater Manager

Kinowelt Medien AG

Purchasing, scheduling, personnel management for 8 movie theaters
Managing 8 full-time employees, scheduling temporary staff

Jul 1991 - Dec 1994

3 years 6 months

Essen, Germany

Software Developer

opta data hard- und software GmbH

Development and expansion of software modules
Bug fixes (COBOL)

Industry Experience

See where this freelancer has spent most of their professional time.

Experienced in Information Technology, Healthcare, and Media and Entertainment.

Information Technology

Healthcare

Media and Entertainment

Business Area Experience

See which departments and functions this freelancer has contributed to most.

Experienced in Information Technology, Product Development, Quality Assurance, Strategy, Operations, and Human Resources.

Information Technology

Product Development

Quality Assurance

Strategy

Operations

Human Resources

Summary

Technology-driven leader with over 25 years of experience in building, scaling, and transforming software solutions in regulated environments.

Focus on developing central platforms and software products, digital identities, and integration solutions in the context of telematics infrastructure, secure authentication methods, and connected services.

Many years of responsibility for development organizations with more than 80 employees and budgets in the multi-million range, as well as consulting and reporting at C-level.

Skills

Professional And Strategic Project And Product Management
Agile Change Manager
Administrative And Professional Leadership
Agile Development Methods
Iso 9001, 27001, C5
Application Lifecycle & Collaboration
Jira
Confluence
Microsoft Planner
Xray (Test Management For Jira)
Code Quality & Engineering Excellence
Sonarqube
Checkstyle
Pmd
Jacoco (Code Coverage)
Eslint
Reporting & Analytics
Power Bi
Metabase
Grafana
Tableau
Monitoring & Observability
Prometheus
Grafana
Elk Stack (Elasticsearch, Logstash, Kibana)
Office
Microsoft Word
Microsoft Excel
Microsoft Powerpoint
Microsoft Teams
Libreoffice

Languages

German

Native

English

Advanced

Education

Mar 2021 - Oct 2029

Fernuniversität Hagen

Work and Organizational Psychology

IHK

Certified IT Specialist in Application Development · Application Development

Certifications & licenses

Vocational Trainer according to AEVO

IHK

Certified IT Specialist in Application Development

IHK

ISTQB Certified Tester

ISTQB

Professional Scrum Master (PSM)

Scrum.org

Professional Scrum Product Owner (PSPO)

Scrum.org

Professional Software Architect

ISAQB

Statistics

Experience

Total positions 7

Experience in Information Technology 32.5 y

Avg length 4 y 11 m

Longest experience 18 y 9 m

Global Experience

Countries worked in 1 (Germany)

Primary country Germany

Expertise

Recent roles Enterprise Product Owner, Senior Development Manager, Department Head IT / CTO

Main industries Information Technology, Healthcare, Media and Entertainment

Main business areas Information Technology, Product Development, Quality Assurance

Qualifications

Certifications earned 6

Profile

Created

July 2026

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Frequently asked questions

Have questions? Find more information here.

Where is Carsten based?

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

What languages does Carsten speak?

Carsten speaks the following languages: German (Native), English (Advanced).

How many years of experience does Carsten have?

Carsten has at least 35 years of experience. During this time, Carsten has worked in at least 6 different roles and for 4 different companies. The average length of individual experience is 5 years. Note that Carsten may not have shared all experience and actually has more experience.

What roles would Carsten be best suited for?

Based on recent experience, Carsten would be well-suited for roles such as: Enterprise Product Owner, Senior Development Manager, Department Head IT / CTO.

What is Carsten's latest experience?

Carsten's most recent position is Enterprise Product Owner at opta data IT GmbH.

What companies has Carsten worked for in recent years?

In recent years, Carsten has worked for opta data IT GmbH.

Which industries is Carsten most experienced in?

Carsten is most experienced in industries like Information Technology, Media and Entertainment, and Healthcare.

Which business areas is Carsten most experienced in?

Carsten is most experienced in business areas like Information Technology, Product Development, and Quality Assurance. Carsten also has some experience in Strategy, Operations, and Human Resources.

Which industries has Carsten worked in recently?

Carsten has recently worked in industries like Information Technology.

Which business areas has Carsten worked in recently?

Carsten has recently worked in business areas like Information Technology, Product Development, and Strategy.

What is Carsten's education?

Carsten attended Fernuniversität Hagen for Work and Organizational Psychology.

Does Carsten have any certificates?

Carsten has 6 certificates. Among them, these include: Vocational Trainer according to AEVO, Certified IT Specialist in Application Development, and ISTQB Certified Tester.

What is the availability of Carsten?

Carsten is immediately available full-time for suitable projects.

What is the rate of Carsten?

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