Jens Kopper-Freelancer
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Experience
Freelancer
IT-P GmbH
- Supported the production rollout of the KVAI-Classic master data system
- Analyzed and fixed errors in PL/SQL-based interfaces on Oracle 19
- Designed fixes and enhancements for the service provider
Freelancer
adesso health solutions
- Migrated existing master data interfaces to a business abstraction layer using Oracle 11g SQL PL/SQL in billing and rights/roles
- Analyzed existing master data interfaces
- Modified and extended the abstractions
- Created new interfaces
Freelancer
CBR Fashion Operations GmbH
- Led the project to develop the support process for go-live and beyond
- Modeled processes with Innovator
- Developed SSRS reports
- Created DB2 SQL queries
- Provided 1st and 2nd level support for Infor M3 during go-live using the HelpLine ticket tool
- Operated, analyzed and enhanced the in-house ERP system with Oracle DB SQL PL/SQL 11g, Oracle Forms/Reports 10g, WLS Server
Freelancer
Lidl Stiftung & Co. KG
- Provided support for GLT software
- Advised and drafted requirements for software vendors
- Created complex Oracle SQL queries for large data sets on power consumption and temperatures
- Imported historical data from various sources and formats into the new GLT system
Freelancer
CBR Fashion Operations GmbH
- Installed and configured Windows 7 32- and 64-bit virtual machines with Oracle Forms & Reports 11g
- Provided second and third level support for Oracle (DB 10g, Forms & Reports 10g)
Employee
PADI
- Training to become a PADI OWSI scuba instructor
- Conducting PADI dive courses in German and English
- Organizing and leading dive trips
- Repairing and maintaining diving equipment
Freelancer
CBR Fashion Operations GmbH
- Developing Oracle 10g SQL/PL/SQL, Forms, and Reports
- 2nd and 3rd level support for Oracle (Oracle DB 10g, Forms & Reports 10g)
Freelancer
WKG Software GmbH
- Developing an interface for automatic update processing of telephone directory data from DeTeMedien using Oracle 10g SQL/PL/SQL
Freelancer
Fashion Service GmbH
- Leading IT projects using MS Project
- Managing two major SCM projects (SCM I & SCM II) over nine months with up to three external companies and a total of 14 team members
- Developing a communication platform between producers, freight forwarders, and the internal design, order, and inbound departments
- Developing a platform to map goods flow processes from goods receipt to goods dispatch
- Using C# ASP .Net and Oracle 10g PL/SQL
- Migrating Oracle Forms and Reports from 6i to 10g
- Developing Oracle 10g, 6i SQL/PL/SQL, Forms, and Reports
- Providing 2nd and 3rd level support for Oracle 10g and 6i (DB, Forms, Reports)
Employee
Fashion Service GmbH
- Leading the IT development team (17 members)
- Leading smaller IT development projects
- Supporting the setup of a data warehouse using Oracle tools
- Oracle database administration
- Migrating Oracle database from 8i to 10g
- Developing Oracle SQL/PL/SQL for DB 8i, Forms, and Reports 6i
- Providing 2nd and 3rd level support for Oracle (DB 8i, Forms & Reports 6i)
Employee
WKG Software GmbH
- Consulting and support for a publishing client
- Software development Oracle 8i SQL/PL/SQL and CENTURA GUPTA
Employee
runtime Projektsysteme GmbH
- Consulting and support for multiple publishing clients
- Software development Oracle 8i SQL/PL/SQL and CENTURA GUPTA
- Supervision of multiple FHDW interns
Employee
Schlütersche GmbH & Co. KG
- Project management
- Software development Oracle SQL/PL/SQL and CENTURA GUPTA
- Development of applications for the NIPSON duplex digital printing line
- SCO-UNIX developments
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Fashion, Information Technology, Media and Entertainment, Healthcare, Retail, and Telecommunication.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Project Management, Product Development, Operations, Finance, and Business Intelligence.
Summary
Oracle SQL/PL-SQL expert in development, database design and runtime optimization. I would like to get into the AI field.
Languages
Education
Buhmannschule Hannover
State-certified business assistant in computer science · Hanover, Germany
Secondary school diploma
Certifications & licenses
PADI Open Water Scuba Instructor
PADI
PADI Divemaster
PADI
Statistics
Experience
Global experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Jens is based in Isernhagen, Germany and prefers 100% remote projects.
Jens speaks the following languages: German (Native), English (Advanced).
Jens has at least 30 years of experience. During this time, Jens has worked in at least 2 different roles and for 9 different companies. The average length of individual experience is 2 years and 3 months. Note that Jens may not have shared all experience and actually has more experience.
Based on recent experience, Jens would be well-suited for roles such as: Freelancer, Employee.
Jens's most recent position is Freelancer at IT-P GmbH.
In recent years, Jens has worked for IT-P GmbH and adesso health solutions.
Jens is most experienced in industries like Fashion, Information Technology, and Media and Entertainment. Jens also has some experience in Healthcare, Retail, and Telecommunication.
Jens is most experienced in business areas like Information Technology, Project Management, and Product Development. Jens also has some experience in Operations, Finance, and Business Intelligence.
Jens has recently worked in industries like Information Technology and Healthcare.
Jens has recently worked in business areas like Information Technology, Product Development, and Finance.
Jens attended Buhmannschule Hannover for State-certified business assistant in computer science.
Jens has 2 certificates. These include: PADI Open Water Scuba Instructor and PADI Divemaster.
Jens is immediately available part-time for suitable projects.
Daily rate distribution
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Average rates for similar positions
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The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 24 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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