Jens Kopper - Freelancer

Q: Where is Jens based?

Jens is based in Isernhagen, Germany and prefers 100% remote projects.

Q: What languages does Jens speak?

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

Q: How many years of experience does Jens have?

Jens has at least 29 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.

Q: What is Jens's latest experience?

Jens's most recent position is Freelancer at IT-P GmbH .

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

In recent years, Jens has worked for IT-P GmbH and adesso health solutions .

Q: Which industries is Jens most experienced in?

Jens is most experienced in industries like Fashion , Information Technology , and Media and Entertainment . Jens also has some experience in Healthcare , Retail , and Telecommunication .

Q: Which business areas is Jens most experienced in?

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 .

Q: Which industries has Jens worked in recently?

Jens has recently worked in industries like Information Technology and Healthcare .

Q: Which business areas has Jens worked in recently?

Jens has recently worked in business areas like Information Technology , Product Development , and Finance .

Recommended expert

Isernhagen, Germany

Experience

Jan 2022 - Present

4 years 3 months

Hanover, Germany

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

Feb 2018 - Dec 2021

3 years 11 months

Hanover, Germany

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

Jan 2014 - Dec 2017

4 years

Celle, Germany

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

Nov 2011 - Sep 2013

1 year 11 months

Neckarsulm, Germany

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

Jul 2011 - Aug 2011

2 months

Celle, Germany

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)

Apr 2010 - Jun 2011

1 year 3 months

Maldives

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

Sep 2008 - Mar 2010

1 year 7 months

Celle, Germany

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)

Sep 2008 - Mar 2010

1 year 7 months

Hanover, Germany

Freelancer

WKG Software GmbH

Developing an interface for automatic update processing of telephone directory data from DeTeMedien using Oracle 10g SQL/PL/SQL

Jul 2006 - May 2008

1 year 11 months

Celle, Germany

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)

Oct 2002 - Jun 2006

3 years 9 months

Celle, Germany

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)

Jan 2002 - Aug 2002

8 months

Hanover, Germany

Employee

WKG Software GmbH

Consulting and support for a publishing client
Software development Oracle 8i SQL/PL/SQL and CENTURA GUPTA

Jan 2001 - Dec 2001

1 year

Hanover, Germany

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

Aug 1995 - Dec 2000

5 years 5 months

Hanover, Germany

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.

Fashion

Information Technology

Media and Entertainment

Healthcare

Retail

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.

Information Technology

Project Management

Product Development

Operations

Finance

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

German

Native

English

Advanced

Education

Aug 1991 - Jun 1993

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

Total positions 13

Experience in Fashion 11 y

Avg length 2 y 4 m

Longest experience 5 y 4 m

Global Experience

Countries worked in 2 (Germany, Maldives)

Primary country Germany

Expertise

Recent roles Freelancer, Employee

Main industries Fashion, Information Technology, Media and Entertainment

Main business areas Information Technology, Project Management, Product Development

Qualifications

Certifications earned 2

Profile

Created

September 2025

Last Update

March 2026

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Frequently asked questions

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

Where is Jens based?

Jens is based in Isernhagen, Germany and prefers 100% remote projects.

What languages does Jens speak?

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

How many years of experience does Jens have?

Jens has at least 29 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.

What roles would Jens be best suited for?

Based on recent experience, Jens would be well-suited for roles such as: Freelancer, Employee.

What is Jens's latest experience?

Jens's most recent position is Freelancer at IT-P GmbH.

What companies has Jens worked for in recent years?

In recent years, Jens has worked for IT-P GmbH and adesso health solutions.

Which industries is Jens most experienced in?

Jens is most experienced in industries like Fashion, Information Technology, and Media and Entertainment. Jens also has some experience in Healthcare, Retail, and Telecommunication.

Which business areas is Jens most experienced in?

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.

Which industries has Jens worked in recently?

Jens has recently worked in industries like Information Technology and Healthcare.

Which business areas has Jens worked in recently?

Jens has recently worked in business areas like Information Technology, Product Development, and Finance.

What is Jens's education?

Jens attended Buhmannschule Hannover for State-certified business assistant in computer science.

Does Jens have any certificates?

Jens has 2 certificates. These include: PADI Open Water Scuba Instructor and PADI Divemaster.

What is the availability of Jens?

Jens is immediately available part-time for suitable projects.

What is the rate of Jens?

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