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REXX Experts in Germany

in minutes from 15,000 CVs with the power of AI.

Hire experts who know REXX on z/OS, IBM mainframe scripting, TSO/E utilities, and batch automation. They can maintain legacy routines, modernize command scripts, and keep critical operations stable with fast, precise matching of vetted, available freelancers.

Meet FRATCH Experts in Germany, who have recently used REXX

Verified expert

Marina Malkowski

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Interim HR Director | Interim Head of HR | Interim CHRO | HR Transformation & Project Lead

Marina Malkowski

Last position:

Independent Interim HR Manager & HR Consultant at Freelance

  • Available for interim assignments as Interim HR Director, Interim Head of HR, Interim CHRO, as well as HR transformation and project assignments; nationwide and pan-European, open to all industries.
  • Focus: HR Strategy, organizational development, post-merger integration from Day 1, HR digitalization, performance management, building and scaling HR organizations.
Verified expert

Franziska Jentzsch

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Executive Transformation Consultant

Sinsheim
Franziska Jentzsch

Last position:

Head of Human Resources at cbs Corporate Business Solutions

  • Strategic build-up, development, and operational management of the HR department
  • Line management and continuous development of 16 employees
  • Advised the executive board as well as consulting directors and business unit managers on all HR-related and strategic topics (direct report to the chairman)
  • Developed and implemented a recruiting strategy and process; developed recruiters into talent acquisition experts
  • Planned and executed an employer branding project for the DACH region and developed a sustainable employee retention concept
  • Implemented the HR business partner concept
  • Designed and rolled out a sustainable talent management program, including introduction and training on the Predictive Index (PI)
  • Developed and implemented leadership development for junior managers
  • Designed and introduced all HR management and organizational development tools
  • Designed and introduced a sustainable onboarding and employee retention concept (adapted due to COVID-19)
  • Moderated, designed, and conducted workshops and in-house trainings
  • Digitized the HR department, including requirements analysis and vendor selection (Personio, SuccessFactors, Sage)
  • Responsible for global site set-up (Finland, DACH, Spain, USA, APAC) and integration with headquarters
  • Ensured a global payroll
  • Managed external service providers, agencies, and consultancies
Verified expert

Doris T.

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HR, HR-IT and Transformation

Doris T.

Last position:

HR restructuring (voluntary program)

  • Evaluated technical implementation options, including system selection (SAP SF, in-house development)
  • Translated HR processes into IT requirements
  • Coordinated the international project work streams
Verified expert

Christine Wagner

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Project management / project support for REXX HR system implementation

Samerberg
Christine Wagner

Last position:

People Process & Digitalization Specialist at TÜV SÜD Customer Engagement and People GmbH

  • Analysis, redesign, and rollout of HR core processes across the entire employee lifecycle
  • Interface management between HR, IT, and multiple business units in a complex corporate environment
  • Support for cultural change processes with a focus on mindset shifts and cross-department collaboration
Verified expert

Ismail Bellabrouj

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HR Advisor

Offenbach
Ismail Bellabrouj

Last position:

HR Advisor at AVAYA GmbH & Co. KG

  • Support of HR processes throughout the entire employee lifecycle - from onboarding and transfers to salary changes and offboarding
  • Preparation of employment contracts and references and maintenance in SAP SuccessFactors
  • Management of personnel files, archiving of documents, and monitoring of deadlines for follow-up processes
  • Handling inactive employment relationships
  • Processing compensation-related changes - e.g. recurring payments, deductions, one-time payments, and reimbursements
  • Handling work and commuting accidents and reporting them to the employers' liability insurance association
  • Responding to employee questions about statutory and internal benefits such as parental leave, educational leave, or company car policies
  • HR correspondence via email, mail, phone, and the HR ticketing system
  • Close cooperation with HR Business Partners, Payroll, Finance, fleet management, and other internal interfaces
  • Support of HR initiatives within the scope of M&A and Human Capital Management
  • Ensuring compliance with legal and internal company requirements
  • Creating reports and ensuring a reliable data basis
Verified expert

Sebastian Krammer

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Senior HR Leader Transforming Businesses International Operations & Strategy

Munich
Sebastian Krammer

Last position:

Group Head of HR Operations at Universal Investment

  • Built and led global HR operations including payroll across EU & Singapore (team of 21 across three countries), supporting a workforce of 1,800 employees
  • Reduced operational costs by EUR 5M through redesigning HR IT landscape (one group-wide HRIS, Workday implementation)
  • Acted as trusted HR advisor for executive team on data driven decision making
  • Transformed operations from legal entity focused to scalable group procedures to reduce headcount and transfer positions to best-cost country Poland
  • Standardised end-to-end lifecycle processes (employees & external workers), enabling scalable international delivery and sustainable compliant operations
  • Led HR programs and projects, including M&A initiatives enabling further international growth
  • Defined strategy for payroll services including provider management, integrations built to Workday to ensure sustainable high-quality and compliant delivery
  • Created structures to ensure global alignment and continuous improvement of various teams and stakeholder processes and IT tool management
Verified expert

Bianca Arnhold-Brucker

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Interim Payroll Specialist

Lorch
Bianca Arnhold-Brucker

Last position:

Interim Payroll Specialist at Arval GmbH

  • Supporting payroll processing with P&I Loga (including handling all payroll-related topics such as company cars, long-term illness, maternity leave and parental leave, furloughs, etc.)
  • Maintaining and managing employee data
  • Creating contracts, contract adjustments, contract changes
  • Preparing various letters (parental leave, anniversary, bonus and special payments)
Verified expert

Matthias Ottowski

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Project Manager

Euskirchen
Matthias Ottowski

Last position:

IT Project Manager at IT service provider

Implementation of anti-money laundering requirements in accordance with AMLA/KYC for an international large bank in Munich

Services provided:

  • Clarification of the assignment, definition of the work package structure for the AMLA/KYC implementation project
  • AI-supported project planning using my own AI workflow for project management
  • Creation of the project management plan
  • Resource and capacity planning
  • Development of collaboration structures between IT service provider and bank client
  • Alignment of responsibilities (RACI matrix)
  • Management of 5 project members (core team)
  • Project control, project monitoring, project reporting
  • Communication management
  • Escalation management
  • Stakeholder management (11 stakeholders)
  • Permanent member of the steering committee
  • Project representation internally and externally
  • Project reporting, management of decision-making bodies
  • Project volume: 506 person-days (development effort)
  • Risk management
  • Quality management
  • Organization and running 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 (in-house developments and SMARAGD)

Verified expert

Hans-Dieter Große-Kreul

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40+ Years of IT Expertise: Bridge Builder between Mainframe & AI | Interim Test Manager & Business Analyst for Various

Düsseldorf
Hans-Dieter Große-Kreul

Last position:

Training as an AI Expert

I continuously expand my expertise in AI and automation, working with ChatGPT, OpenAI, Manus, Gemini, MS CoPilot, API, LangChain, Hugging Face, Manus, TensorFlow and Auto-GPT as well as Python-based ML frameworks and MLOps tools to intelligently transform classic software development, analysis, and testing processes.

Verified expert

Robert Klimczak

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HR Interim Manager

Nürnberg
Robert Klimczak

Last position:

CHRO / Global HR Director, Interim at COMPO GmbH

  • Leading HR departments worldwide
  • Implementing digital tools, processes, and workflows
  • Works councils at local, central, and group levels
  • HR restructuring
Verified expert

Thorsten Otremba

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Workstream Lead (WS)

Düsseldorf
Thorsten Otremba

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
Verified expert

Alba Ardito

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Interim Senior Recruiting Specialist

Berlin
Alba Ardito

Last position:

Interim Senior Recruiting Specialist at CureVac

  • Served as a strategic advisor to internal stakeholders on recruitment-related topics
  • Managed end-to-end recruitment processes, from sourcing to onboarding
  • Developed and executed talent acquisition strategies to attract top talent
  • Conducted active sourcing via various channels to build strong candidate pipelines
  • Managed collaboration with external recruitment agencies
  • Supported broader HR projects, including employer branding and process improvements
  • Delivered recruitment training sessions for HR Business Partners and Hiring Managers
  • Supervised and mentored a working student and an intern
  • Supported process improvements in SAP SuccessFactors
Verified expert

Tammo Buss

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Senior IT Demand Manager, Central Divisions

Bad Zwischenahn
Tammo Buss

Last position:

Senior IT Demand Manager, Central Divisions at EWE AG

  • Responsible for all IT initiatives in the HR and Legal board division acting as IT Business Partner HR, solution architect, and portfolio/project manager
  • Direct reporting to the CHRO as part of the 'HR Transformation' project
  • Architectural planning and application strategy for all approx. 70 HR-IT applications
  • Responsible for solution and integration architecture for 'Corporate' projects
  • Developing digitalization solutions for the entire group (e.g., digital signature, no-code/low-code platforms)
  • Part of the cloud task force, developing a cloud strategy and operational implementation of pilot projects in the cloud (AWS, Azure)
  • Developing solution architectures and integration architectures
Verified expert

Rainer Lohmann

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Associate HR Director and Director HR DACH

München
Rainer Lohmann

Last position:

Associate HR Director and Director HR DACH at Daher Aerospace GmbH & Daher Logistik GmbH

  • Stabilization and skills development in the HR department (15 employees)
  • Integration of HR functions and improvement of collaboration with central units at the HQ in France
  • Restructuring and performance improvement at critical locations

Discover over 15,000 top freelancers

Statistics of experts using REXX

Aggregated from the professional profiles of matched freelancers.

Experience

27 years

Position duration

2.3 years

Positions per freelancer

16

Top business areas

Project Management, Human Resources, Information Technology

Top industries

Information Technology, Professional Services, Banking and Finance

Certification focus areas

Human Resources, Information Technology, Operations

Bachelor's degree or higher

70%

Master's degree or higher

42%

Certifications per freelancer

2

Most common languages

German, English, French

Speak two or more languages

98%

Based on our profile pool as of 30 Aug 2026.

Daily rate distribution

0 10 20 30 40
<€400 €400-​800 €800-​1200 €1200-​1600 €1600+

The chart shows how the daily rates of freelancers in this technology in Germany 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 Germany using REXX

Rates are based on recent contracts and do not include FRATCH margin.

1000
750
500
250
Rate comparison chart
Daily rate avg. 845 €

The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.

1000
750
500
250
Rate comparison chart
Median rate 800 €

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 30 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.

About the technology

REXX on mainframes

REXX is a scripting language built for clear, practical automation on IBM systems. Companies use it to control batch steps, process data, and reduce repetitive work on z/OS and related environments. It is often called IBM REXX or, in full, Restructured Extended Executor.

Where it fits

REXX shows up in places where reliable command flow matters more than flashy syntax. Common work includes:

  • TSO/E and ISPF scripting
  • JCL support and batch orchestration
  • dataset handling and report processing
  • system utilities and admin routines
  • migration of older tool scripts

What strong specialists do

Good specialists read old code quickly and keep it safe to change. They understand host commands, error handling, file and dataset access, and how REXX interacts with panels, exits, and other mainframe tools. They write scripts that are easy to support, not just quick to run.

When companies bring in freelance help

Freelance expertise is useful when a team has legacy code no one wants to touch, a release is blocked by a script issue, or an old routine must be adapted for a new process. In Germany, this often comes up in large industrial, banking, and public-sector environments that still rely on IBM mainframes and need experienced hands without a long hiring cycle.

Ecosystem around REXX

REXX rarely stands alone. Work often touches TSO/E, ISPF, JCL, DB2 tools, and site-specific utilities on z/OS. Strong professionals also know how to test in safe environments, document command flows, and keep scripts compatible with local standards and naming rules.

Good signs to hire now

  • A script works only on one system and needs cleanup
  • The original author is no longer available
  • You need help linking REXX with other mainframe tools
  • Batch jobs fail because of fragile command logic
  • You need clear documentation for support teams
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Frequently asked questions

Curious about REXX? Here are the answers that come up again and again.

REXX is used for scripting, automation, and command handling on IBM mainframe systems. Teams use it for TSO/E tasks, ISPF actions, batch support, and small utilities that keep operations moving. It is valued when the job needs predictable behavior and close system integration.

Yes, IBM REXX usually means the same language in the mainframe context. People also use the full name Restructured Extended Executor, but most searchers simply say REXX. In practice, the work is the same: scripts, automation, and system control on IBM platforms.

REXX is better when you need logic, text handling, and interactive command flow in one place. JCL is stronger for job control, while shell scripting is more common outside IBM environments. Many projects use REXX alongside both rather than replacing them.

A strong REXX specialist usually understands z/OS basics, TSO/E, ISPF, JCL, and dataset handling. Knowledge of DB2 utilities, panel logic, and mainframe standards is also useful. The best experts can move between script logic and the surrounding system tasks without losing control of the process.

It depends on the codebase, but REXX work often needs someone who has already handled real mainframe scripts. Simple fixes may be straightforward, while legacy automation, exits, and tightly coupled batch flows need deeper system knowledge. If the script is business-critical, choose a specialist who has worked in production support before.

Yes, many REXX tasks can be handled remotely if access, approvals, and test environments are in place. On-site support can still help when systems are sensitive, documentation is thin, or the team wants close collaboration. In Germany, hybrid setups are common for mainframe work.

Look for someone who explains old scripts clearly, asks about the surrounding IBM tools, and writes changes that are easy to support. A strong REXX professional does not just patch lines; they understand why the script exists and how it fits the process. Clear testing steps and tidy documentation are good signs.

REXX projects often involve legacy systems, strict change control, and code that has grown over many years. Good clients will provide access to examples, surrounding job control, and someone who knows the business process. Freelancers who are patient, precise, and comfortable with older IBM environments usually fit best.

The average hourly rate of freelancers in Germany who have used REXX in their recent projects is 106 €, which corresponds to a daily rate of about 845 € based on an 8-hour working day.

Of the freelancers in Germany who have used REXX in their recent projects, 70% hold at least a Bachelor's degree and 42% hold at least a Master's degree.

On average, freelancers in Germany who have used REXX in their recent projects have 27 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 (98%), and French (23%).

The most common industries among freelancers in Germany who have used REXX in their recent projects are Information Technology (75%), Professional Services (65%), and Banking and Finance (58%).

The most common business areas among freelancers in Germany who have used REXX in their recent projects are Project Management (73%), Human Resources (65%), and Information Technology (63%).

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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