REXX Experts in Dusseldorf
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Meet FRATCH Experts in Dusseldorf, who have recently used REXX
Thorsten O.
Last position:
Workstream Lead (WS) at Bank-Verlag GmbH
- Introduction of giro card with Visa Debit card payment function (Combocard) for Commerzbank
- Support for the Card Processing Team (card processing; Clearing & Settlement incl. Dispute Management teams) in project work
- Creation of requirements for the Clearing & Settlement team, Authorization team (AZ) and Card Production team (KP) as part of a requirements catalog
- Requirements engineering (requirements management) with business contact person
- Participation in workstream meetings between VISA Inc., SRC Security Research & Consulting GmbH, Commerzbank AG and consulting firms (PwC and Senacor Technologies AG)
- Sprint planning with Jira tickets of type Task and use of Confluence
- Creation and presentation of weekly status reports for the Clearing & Settlement, Dispute Management and Reporting & GUI workstreams
- Coordination with network and file transfer teams for connection tests of new interfaces, e.g. setup of host keys, use of VPN or sipnet connections
- Coordination of the delivery of test files, e.g. exchange rates (FX rates; TC 56 of VISA rates), VISA Debit and Credit transactions (format Base II) and EANSS/ISS Base II clearing files to the Debit Clearing System (DCS)
- Conducting coordination meetings on the use of Visanet Settlement Service (VSS) and PSD2 reports and payment traffic statistics (ZVS)
- Organizing workshops with FiServ (First Data) on Dispute Management and complaint handling
- Setup and maintenance of Open Point List (OPL) in Confluence
- Technologies/methods: Jira, Confluence, giro card, VISA Debit card, payments, Kanban board, BIN, routing, CIQ, VPAY, ScalaTest, Dispute Management
Alois G.
Last position:
Bank DZ Privatbank S.A.
- Various programming tasks as specified
- Work carried out from home office, meetings/tasks via email, phone and Microsoft Teams
- Version control via GIT
- Implementation with RDI, FreeSQL SQL
- Extension of automatic test environment creation as specified - adding automatic transfer of existing iSeries users and preparation as well as anonymization of test data
- Creation of trigger and service programs in SQLRPGLE, FreeRPG, ILE RPG and CLLE
- Development and implementation of the CallKredite project including additional extensions for other departments
- Conversion of RPG to Free-RPG and SQL as well as extension of existing modules as specified
- Migration to a new banking release
- Support for specialist segment / OIV
Jürgen S.
Last position:
IT Consultant / Analyst / Developer / Tester / Support at Automotive Manufacturer
- Analysis, software development/customization, and testing of various transaction and batch objects
- Conducting functional integration and regression tests on TEST and QA platforms under z/OS for later production implementation
- Hardware / Software / Tools: IBM MVS, z/OS, JES2/3, TSO-ISPF, JCL, DB2, SQL, SQL/PL, QMF, QMF for Workstations, SPUFI, FileAid, IMS-DB/DC, MFS, XPEDITER, COBOL, REXX, Windows 10, MS Office 365, MS Teams, batch job management via OPC, BETA92, RVS, BVB, ABL, DIALOGplus, PROBA, PRODPR (VW internal systems), JIRA, CONFLUENCE
Discover over 15,000 top freelancers
Statistics of experts using REXX
Aggregated from the professional profiles of matched freelancers.
Experience
39 years (Germany: 35 years)
Position duration
2.2 years (Germany: 2.3 years)
Positions per freelancer
17 (Germany: 20)
Top business areas
Information Technology, Business Intelligence, Finance
Top industries
Information Technology, Banking and Finance, Transportation
Certifications per freelancer
1 (Germany: 2)
Most common languages
German, English
Speak two or more languages
100% (Germany: 96%)
Based on our profile pool as of 19 Sep 2026.
Daily rate distribution
The chart shows how the daily rates of freelancers in this technology in Dusseldorf are distributed, based on recent contracts on our platform. Each bar covers a rate range — its height shows how many freelancers charge within that range.
Average rates of experts in Dusseldorf using REXX
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
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 19 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
REXX experts industry focus
See which industries our matched freelancers work in most often — every figure is calculated live from the freelancers on FRATCH.
- Information Technology (100%)
- Banking and Finance (67%)
- Transportation (67%)
- Retail (67%)
- Aerospace and Defense (33%)
- Automotive (33%)
- Chemical (33%)
- Energy (33%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
REXX in practice
REXX, short for Restructured Extended Executor, is a scripting language used for automation, data handling, and text processing. On IBM systems it is common in TSO, ISPF, and batch jobs, and it is still used to keep core routines clear and maintainable.
Typical work
- Automating admin tasks and job control
- Building utility scripts for mainframe workflows
- Parsing reports, files, and command output
- Extending tools on z/OS and related environments
Ecosystem and variants
Strong experts know classic REXX as well as IBM REXX and Object REXX. They understand how scripts interact with CLIST, ISPF panels, JCL, and legacy application stacks. That mix matters when a script must run inside a long-lived enterprise environment.
When companies hire help
Teams usually bring in freelance specialists when a REXX script is hard to read, a batch flow breaks, or older logic needs safe changes. They also need help when they document inherited code, replace fragile utilities, or connect REXX to newer operating procedures in Dusseldorf and beyond.
What strong specialists bring
Good professionals write clear, defensive code and understand mainframe conventions. They trace data flow carefully, test edge cases, and keep scripts easy to support. They also know when to improve an existing routine instead of replacing it.
Skills that matter
REXX work often sits next to TSO, ISPF, JCL, VSAM, and COBOL environments. The best experts can read old code, explain it in plain terms, and work with operations or application teams without slowing delivery. That is what keeps maintenance safe and predictable.
Frequently asked questions
Questions about REXX? Start with the answers below.
REXX is used for scripting, automation, and text processing, especially in IBM mainframe environments. It often drives small utilities, batch support tasks, and interactive workflows in TSO or ISPF. Companies use it when they need reliable logic around existing systems rather than a full rewrite.
REXX is still relevant where it already sits inside core processes and has few dependencies. In many cases, the better move is to review, document, and harden the existing code before deciding on a replacement. A strong freelancer can help you judge whether the script is a maintenance asset or a risk.
REXX is usually easier to read than CLIST and more structured for complex text work. Compared with shell scripting, it fits better in IBM environments and often integrates more naturally with TSO and ISPF. The right choice depends on where the script runs and how tightly it must fit the platform.
A good REXX specialist usually knows JCL, ISPF, TSO, and basic mainframe file handling. Experience with COBOL, VSAM, and job scheduling is also valuable when the script touches production workflows. That mix helps them fix issues without breaking surrounding processes.
A simple REXX utility may only need someone who can read the code, trace inputs, and clean up the logic. A production change that touches batch jobs or interactive panels needs deeper IBM system knowledge and careful testing. The more business-critical the flow, the more important legacy context becomes.
Yes, most REXX work can be handled remotely if the freelancer has secure access to the relevant systems. In Dusseldorf, on-site collaboration is mainly useful when teams want direct access to operators, support staff, or inherited documentation. Many projects use a hybrid setup for reviews and handover.
Look for someone who can explain existing REXX code in plain language, not just write new lines. Strong professionals leave clear comments, handle error paths, and test scripts against real edge cases. If they understand the surrounding mainframe process, that is usually a good sign.
They usually want to know where REXX runs, which systems it touches, and whether they will maintain old code or build new scripts. They also ask about access, testing, and whether they need IBM-specific knowledge such as ISPF or JCL. Clear scope makes the work faster and safer.
The average hourly rate of freelancers in Dusseldorf, Germany who have used REXX in their recent projects is 96 €, which corresponds to a daily rate of about 764 € based on an 8-hour working day.
On average, freelancers in Dusseldorf, Germany who have used REXX in their recent projects have 39 years of professional experience, with a single engagement typically lasting around 2.2 years.
The most common languages among freelancers in Dusseldorf, Germany who have used REXX in their recent projects are German (100%) and English (100%).
The most common industries among freelancers in Dusseldorf, Germany who have used REXX in their recent projects are Information Technology (100%), Banking and Finance (67%), and Transportation (67%).
The most common business areas among freelancers in Dusseldorf, Germany who have used REXX in their recent projects are Information Technology (100%), Business Intelligence (67%), and Finance (67%).
Main locations of FRATCH Experts, who have recently used REXX
Our freelancers and interim experts are at home across the DACH region — available on-site in the major business hubs or fully remote. Choose a location to discover matched specialists, local market insights and up-to-date availability.
Berlin Hamburg Munich Cologne Frankfurt Stuttgart 
Dusseldorf Leipzig Dortmund Essen Bremen Dresden Hanover Nuremberg 
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