REXX Experts in Germany
, matched in minutes from over 15,000 CVsHire experts who automate z/OS operations, maintain TSO and ISPF tooling, and modernize REXX scripts around IBM mainframe environments. FRATCH matches you quickly and precisely with vetted, available freelancers who fit your technical needs.
Meet FRATCH Experts in Germany, who have recently used REXX
Hans-Dieter G.
Last position:
Training as an AI Expert
I continuously expand my expertise in AI and automation. I work with ChatGPT, OpenAI, Manus, Gemini, MS CoPilot, APIs, LangChain, Hugging Face, Manus, TensorFlow, and Auto-GPT, as well as Python-based ML frameworks and MLOps tools, to intelligently transform traditional software development, analysis, and testing processes.
Christian K.
Last position:
Service Catalog Manager at Deloitte Team
- Worked in the IT infrastructure of the Deloitte team.
- Planned assignment as Service Catalog Manager at an insurance company in Hannover.
Jürgen S.
Last position:
IT – Consultant / Analyst / Developer / Tester / Support at Automotive manufacturer
- Analysis, software development/adaptation and testing of various transaction and batch objects
- Execution of specialist integration and regression tests on TEST and QA platforms under z/OS for subsequent implementation in production
- Hardware / software / tools: IBM-MVS, z/OS, JES2/3, TSO-ISPF, JCL, DB2, SQL, SQL/PL, QMF, QMF for Work-Stations, 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
Knud W.
Last position:
Lead Programmer, Architect and Deputy Product Owner at Bundesagentur für Arbeit
- Lead programmer, architect and deputy product owner
- Completed transition from zPDV to STEP
- Ensured quality of C++ and Perl sources through automated and manual checks
- Supported resolution of incidents and errors in testing
- Implemented batch for supplementary assignment of payment run numbers
- Implemented batch for distribution of SGB 2 information to the central payment unit
- Supported replacement of Solaris with Linux
- Upgraded gcc from 7.4 to 9.3
- Programmatically generated Makefiles from Borland projects for builds
- Extended funding data with new attribute “Kennzeichen Fahrtkosten Praktikum”
- Programmatically generated XSD and WSDL files from IDL definitions
- Represented the product owner when needed
- Implemented batch for one-time payment processing
- Developed generator for Liquibase files
- Implemented and maintained regular anonymization of production data
- Supported migration from SLES 12 to SLES 15
- Supported introduction of mutual TLS
- Implemented batch for sending deletion impulses to EDA BE
- Organized script directory structure
- Investigated potential introduction of String-Latin and implemented minimal solution
- Remediated security findings identified by CheckMarx
- Supported PAP recalculations and general change notices
- Converted ERP interfaces from SOAP to REST
- Planned technical and business topics such as register modernization, cash register security, training costs, four-eyes principle
Matthias O.
Last position:
IT Project Manager at IT service provider
Implementation of anti-money laundering requirements under AMLA/KYC for an international major bank in Munich
Services provided:
- Clarification of the assignment and definition of the work package structure for the AMLA/KYC implementation project
- AI-supported project planning using a custom AI workflow for project management
- Preparation of the project management plan
- Resource and capacity planning
- Development of collaboration structures between the IT service provider and the bank client
- Agreement on responsibilities (RACI matrix)
- Management of 5 project members (core team)
- Project control, project monitoring, project reporting
- Communications management
- Escalation management
- Stakeholder management (11 stakeholders)
- Permanent member of the Steering Committee
- Project representation internally and externally
- Project reporting and management of decision-making bodies
- Project volume: 506 person-days (development effort)
- Risk management
- Quality management
- Organization and delivery of workshops
Methods: PMI PMBOK, EVM, GWG, DORA, BAIT, KANBAN, AML, AMLR, AMLA, GWG, KYC
IT environment: JIRA, Confluence, Sharepoint, Kantata Kimble, AI LLM Copilot, ChatGPT, anti-money laundering systems (custom-developed and SMARAGD)
Jörg S.
Last position:
Software Developer at Commerzbank
- Created interface programs between mainframe and distributed online screens
- Modified and created batch programs for daily data processing
- Provided advice on program setup, database structures, and programming tools
- Performed error analysis for the overall project
- System: OS/390, ISPF, TSO, IMS DB, IMS Connect, COBOL, DB2, SQL, SPUFI, IBM debug tool, Confluence, Jira, Eclipse, Rational Developer for Z Systems (RDZ)
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
Dieter M.
Last position:
Software Engineer at Hamma UWT
Integration of a safety shutdown into the firmware of the MISCEO product after a specific limit value (capping) for the dispensing quantity is reached.
Familiarization with the product and its firmware (C code and functional operation).
Identification of the code sections required for the change.
Implementation of the enhancement.
Testing and documentation (source code only).
Target platform: Embedded firmware without an operating system.
Tools: Eclipse, C.
Ensar Y.
Last position:
Service Manager Microsoft Cloud Services (ITIL) at Industry (technology group)
- Took on the role of Service Manager for Microsoft 365 and Azure services
- Coordinated service providers in the areas of collaboration and security (Exchange Online, Teams, Azure AD)
- Monitored and optimized SLA-compliant operating processes (Incident, Change, Problem)
- Worked closely with internal IT management and integrated ITIL processes into Azure DevOps
- Microsoft Azure, Exchange Online, Teams, Azure AD, ITIL v4, Azure DevOps, Power BI, ServiceNow
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
Peter R.
Last position:
System support / further development at Allianz
- Software management
- Release management, automated release deployment
- Handover of PL1 modules to Linux for MF-Pl1 compiler
- Maintenance of XINFO, Lexicon, DB design, migration
Abdullah A.
Last position:
Technical Program Manager - IT & Corporate Social Responsibility (CSR) at Maxon Computer GmbH (a Nemetschek Company)
Led cross-functional compliance and IT programs spanning infrastructure, security, legal, and executive stakeholders, ensuring audit readiness and regulatory alignment.
Acted as single point of ownership for IT governance and CSR programs, defining scope, milestones, risks, and success metrics.
Partnered directly with VP of IT as a governance and control counterpart, supporting security incidents, compliance posture (ISO 27001, GDPR, SOC 2), and executive reporting.
Supported organizational readiness for emerging EU regulations, including the EU Cyber Resilience Act (CRA) and EU AI Act, by analyzing regulatory requirements, identifying governance and compliance impacts, and aligning internal policies and control processes.
Designed and scaled data collection and reporting processes for CSR and regulatory reporting across group and subsidiary level.
Drove process improvements and standardization, increasing transparency, predictability, and audit readiness.
Technologies and tools: Office 365 Power BI, MS SharePoint, MS Word, MS Excel, MS Teams, Zendesk, Confluence, JIRA, Vanta.
Gerhard H.
Last position:
Application Developer at Lila Logistik
- Supported the application
- Developed applications in COBOL
- Extended customer and in-house requirements
- Assisted in ensuring smooth operation
- Methods/tools: COBOL, HP3000, MPE/XL operating system, IMAGE database, Whisper (development interface)
Jürgen B.
Last position:
Database Administrator and Performance Tuning Specialist at ALD Automotive Leasing Deutschland
- Database administration and performance tuning for Oracle databases on AIX 7.1, 7.2 with Oracle 12c and 19c
- Troubleshooting and resolution on RHEL 7
- Automation of operations with UNIX/Linux shell scripts, Perl programs, and PL/SQL
- Planning, preparation, execution, and customer-specific review of changes and upgrades for the LEASMAN and DOXIS applications
- Incident handling including communication with outsourcing service providers and business units
- Data exchange with Data Pump
- Visualization of database content and monitoring results
- Configuration of databases for Debezium and monitoring Debezium activities
- Preparation of Oracle databases for migration to cloud environments
- Implementation and monitoring of NIST requirements in databases
- Automation of release upgrades for the LEASMAN application
- Creation of operations manuals and instructions
- Generation of reports for GDPR information requests
Michael W.
Last position:
Storage Architect at BSI GmbH
- Processing changes to build new storage in a new data center environment
- Draft design of the storage solution with its backup area
- Discussions on the future storage architecture and cloud backup solution
- Timeline creation for each project with duration and maturity level
- Documenting each project in Confluence
- Updating all storage product items in Certlich
- Updating and fixing errors in Alfabet
- Adding new products and their details in Alfabet for the storage area
Discover over 15,000 top freelancers
Statistics of experts using REXX
Aggregated from the professional profiles of matched freelancers.
Experience
35 years
Position duration
2.3 years
Positions per freelancer
20
Top business areas
Information Technology, Quality Assurance, Business Intelligence
Top industries
Information Technology, Banking and Finance, Insurance
Certification focus areas
Information Technology, Quality Assurance, Human Resources
Bachelor's degree or higher
47%
Master's degree or higher
33%
Certifications per freelancer
2
Most common languages
German, English, French
Speak two or more languages
96%
Based on our profile pool as of 29 Oct 2026.
Daily rate distribution
The chart shows how the daily rates of experts in this technology in Germany are distributed, based on recent contracts on our platform. Each bar covers a rate range — its height shows the share of experts charging within that range.
Average rates of experts in Germany 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 29 Oct 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 (88%)
- Banking and Finance (79%)
- Insurance (63%)
- Manufacturing (50%)
- Automotive (38%)
- Professional Services (38%)
- Government and Administration (25%)
- Telecommunication (25%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
What REXX is
REXX, short for Restructured Extended Executor, is an interpreted scripting language built for readable automation and command processing. It remains closely associated with IBM mainframes, where teams use it to control jobs, process data, support operators, and extend system tools. REXX can also run on distributed systems through implementations such as Regina REXX and Open Object REXX.
Mainframe uses
REXX specialists create scripts that connect operational steps without adding complex compiled programs. Typical work includes:
- Automating TSO and ISPF tasks
- Processing datasets, reports, and operational logs
- Controlling batch workflows and job preparation
- Building ISPF panels, dialogs, and utility scripts
- Supporting z/OS administration and incident response
These scripts often sit close to business-critical operations, so predictable behavior, clear output, and safe error handling matter.
Ecosystem and tooling
Professional REXX work often involves IBM z/OS, TSO/E, ISPF, JES, JCL, RACF, and Db2. Specialists may also work with VSAM, sequential datasets, SDSF, and enterprise scheduling tools. Depending on the environment, they use classic IBM REXX, Object REXX, or ooRexx, while keeping compatibility with existing command environments and site conventions.
When to hire expertise
Companies bring in freelance REXX expertise when experienced internal knowledge is limited or a mainframe change carries operational risk. Common assignments include stabilizing inherited scripts, documenting undocumented automation, migrating workloads, improving batch support, and integrating REXX with JCL, Db2, or monitoring processes. In Germany, remote collaboration can work well when access, change control, and escalation paths are clearly defined; on-site work may help during tightly governed releases.
Strong professional signals
A strong specialist understands both the language and the operating context around it. Look for disciplined parsing, variable handling, return-code checks, dataset awareness, and thorough testing in a controlled LPAR environment. Good professionals explain dependencies, protect production data, and leave maintainable documentation rather than opaque script collections.
REXX and modernization
REXX is not usually selected for a new customer-facing application, but it can remain the safest layer for established mainframe automation. Specialists compare it with JCL, CLIST, Python, Perl, or vendor-specific tools based on access requirements, supportability, runtime location, and migration goals. The right approach may preserve proven scripts while exposing their functions through newer workflows, APIs, or enterprise automation services.
Frequently asked questions
Curious about REXX? Here are the answers that come up again and again.
REXX is commonly used to automate commands, batch preparation, dataset processing, reporting, and operator workflows on IBM mainframes. It is especially useful in TSO/E and ISPF environments, where readable scripts can connect existing system functions without a separate compiled application.
REXX is a flexible scripting language for interactive commands and procedural automation, while JCL defines and submits batch jobs on z/OS. Python offers a broader modern ecosystem and is often preferred for new integrations, but REXX can provide closer access to established mainframe tools and workflows.
A strong REXX specialist often understands TSO/E, ISPF, JCL, JES, SDSF, Db2, VSAM, and RACF. Knowledge of batch scheduling, dataset security, return codes, and z/OS operations is equally important because scripts frequently control or support these surrounding services.
The required background depends on the risk and scope of the assignment. A small script adjustment may need focused knowledge of the local command environment, while production automation, migration, or incident support calls for a professional who has handled dependencies, testing, recovery paths, and change controls.
Yes. REXX work can often be performed remotely when secure access, test environments, documentation, and release procedures are available. German companies may still prefer on-site collaboration for restricted systems, major cutovers, or workshops with operations teams; language expectations should be agreed before the engagement.
Reliable REXX scripts validate inputs, check command return codes, handle missing datasets, and produce useful operational messages. They also avoid unsafe assumptions about allocation, user authority, and execution context, with repeatable tests that reflect real TSO, ISPF, or batch conditions.
REXX remains relevant when modernization depends on stable z/OS operations and existing automation. A specialist can identify which scripts should be retained, refactored, wrapped, or replaced, then connect proven routines with scheduling tools, APIs, Python services, or broader automation frameworks.
Ask for examples of automation involving the same z/OS tools, not only general scripting. A capable REXX professional can explain parsing choices, security boundaries, testing methods, rollback plans, and how the delivered scripts will be documented and supported by the internal team.
The average hourly rate of freelancers in Germany who have used REXX in their recent projects is 98 €, which corresponds to a daily rate of about 786 € based on an 8-hour working day.
Of the freelancers in Germany who have used REXX in their recent projects, 47% hold at least a Bachelor's degree and 33% hold at least a Master's degree.
On average, freelancers in Germany who have used REXX in their recent projects have 35 years of professional experience, with a single engagement typically lasting around 2.3 years.
The most common languages among freelancers in Germany who have used REXX in their recent projects are German (100%), English (96%), and French (25%).
The most common industries among freelancers in Germany who have used REXX in their recent projects are Information Technology (88%), Banking and Finance (79%), and Insurance (63%).
The most common business areas among freelancers in Germany who have used REXX in their recent projects are Information Technology (100%), Quality Assurance (83%), and Business Intelligence (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 Request a free demo
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