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Mainframe Experts in Vienna

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Hire experts who modernize COBOL applications, operate IBM z/OS environments and connect mainframes with cloud services. FRATCH matches you quickly with vetted, available freelancers whose experience fits your systems and delivery goals.

Meet FRATCH Experts in Vienna, who have recently used Mainframe

Verified expert

Thomas P.

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Leading global senior organizational change executive, AI / digital transformation & post-merger integration

Vienna
Thomas P.

Last position:

Change Manager / AI-driven Finance Transformation at Agrana

Organizational Change Management for the strategic setup of a hybrid GBS rollout as part of a global, AI-driven Finance Transformation. End-to-end management of the OCM architecture in a highly complex on-, near-, and offshore partner setup [IN, PL, RO]. Successful completion of Phase 1 (Initial Strategy) and strategic pausing by the Executive Board after the early disclosure of critical vendor-side OPEX risks

  • Systemic Baseline Assessment & Stakeholder Diagnostics: Evaluation of the global organization and analysis of the process landscape across 21 countries [AT, DE, CH, FR, UK, SI, RO, UA, RU, US, CD, CN, AR, MX, ZA, IN, JP] to precisely determine change requirements

  • Architecting the OCM Strategy & Master Roadmap: Independent development of a comprehensive, AI-centered Change Roadmap for end-to-end management of all change initiatives across every project phase

  • Data Quality & AI Agent Risk Mitigation: Auditing of Process Data Repositories (Celonis analysis); prevention of the ingestion of 58% synthetic training data to safeguard AI model reliability amid geopolitical supply chain tensions

  • GBS Vendor BAFO Triage & Contractual Commitment: Critical review of Tier-1 vendor pitches and contractual commitment to a reduced Non-STP rate (from 7% to 4%) to avoid extreme manual rework with a planned FTE reduction (-63%)

  • Executive Enablement & Board Alignment: Design of the GBS Transformation Executive Board Deck to strategically enable C-level executives and transparently present completely overlooked AI tokenization costs

  • Targeted Change Communications & Engagement: Design and development of audience-specific communication measures to align the highly diverse, globally distributed stakeholder network

  • Adoption Velocity & Resistance Measurement: Engineering of quantitative measurement tools (Pulse Check Survey) using Behavioral Dyads to identify resistance based on data and ensure sustainable success measurement

Results:

  • Avoidance of disruptive misallocations: Stopping the ingestion of 58% synthetic AI-agent training data after discovering only 42% compatibility with existing processes, preventing critical GBS cascade errors
  • Significant OPEX & effort reduction: Reduction of the Non-STP rate in Tier-1 vendor BAFOs from 7% to 4% alongside an impending 63% Finance-FTE reduction; avoidance of thousands of time-consuming manual correction processes
  • 100% Delivery of the OCM architecture & ROI protection: Delivery of all OCM artifacts (Change Roadmap, Comms Plan, Executive Board Deck, Pulse Check Survey) and protection of ROI by identifying incalculable LLM runtime token costs
Verified expert

Frank W.

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Software Development

Vienna
Frank W.

Last position:

Software Development at REI and EMI

  • Code review, bug fixing, and new development of program code in PL/SQL and Oracle Forms
  • Migration of the database version to Oracle 12/19 and migration of the Oracle Forms environment from client-server to web (6i → 12c)
  • Fixing blocking sessions and implementing new workflow requirements
  • Use of PL/SQL packages, procedures, functions, database triggers, batch files, and Java applications
  • Revision of screen masks based on Oracle Forms and client-side PL/SQL code
  • Business handling of issuing and processing vouchers (REI = Reimbursement; EMI = Emission), including billing with acceptance partners
  • Agile development based on SCRUM with monthly sprints and weekly coordination meetings
Verified expert

Michael G.

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Scrummaster

Wien
Michael G.

Last position:

Scrummaster at Xenovo

  • Planning and monitoring sprints and holding the scheduled meetings

  • Analyzing and resolving issues in the development process

  • Error analysis, bug management and correction in individual process steps

  • Stakeholder management

  • Documentation and improvement of the development process

  • Tools: JIRA, Confluence

Verified expert

Markus K.

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Document Development

Wien
Markus K.

Last position:

Document Development at Insurance Company

  • Replacement of original Dopix documents and modules into the Quadient document environment
  • Extension of document logic
Verified expert

Walter S.

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Enterprise Modernization & Service Transition Leader | GRC/AI Compliance | Architecture & Digital Transformation #GRCA #GRCP

Vienna
Walter S.

Last position:

Territory Service Manager Red Hat Consulting at Major German Engineering and Technology Multinational Company

  • Migrating from VMware to OpenShift Virtualization, 40+ workstreams / projects in parallel (Small- to Medium Sized VM Operators / Critical Factory Workload Owners / Large-Scale Data Center Operators)
Verified expert

Attila D.

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Full-Stack Software Engineer

Vienna
Attila D.

Last position:

Full-Stack Software Engineer at Research Data Evaluation

  • Custom anonymized research data analyzer, providing insights and facilitating data-driven decision-making.
  • Designed and developed back- and frontend.
  • Delivered end-to-end solution.
  • Accelerated research timeline by 2 months.

Discover over 15,000 top freelancers

Statistics of experts using Mainframe

Aggregated from the professional profiles of matched freelancers.

Experience

30 years

Mainframe experts in Vienna have 30 years of professional experience on average.

Position duration

2 years

Mainframe experts in Vienna stay in a single position for 2 years on average.

Positions per freelancer

17

Mainframe experts in Vienna have completed 17 positions on average over the course of their careers.

Top business areas

Information Technology, Project Management, Product Development

Mainframe experts in Vienna have gathered most of their hands-on project experience in Information Technology, Project Management, and Product Development.

Top industries

Information Technology, Banking and Finance, Manufacturing

Mainframe experts in Vienna are most in demand in Information Technology, Banking and Finance, and Manufacturing.

Certification focus areas

Information Technology, Project Management, Audit

Mainframe experts in Vienna earn their certifications most often in Information Technology, Project Management, and Audit.

Bachelor's degree or higher

86%

86% of Mainframe experts in Vienna hold at least a Bachelor's degree.

Master's degree or higher

71%

71% of Mainframe experts in Vienna hold at least a Master's degree.

Doctorate

14%

14% of Mainframe experts in Vienna have a doctorate (PhD).

Certifications per freelancer

4

Mainframe experts in Vienna hold 4 professional certifications on average.

Most common languages

German, English, French

Mainframe experts in Vienna most often speak German, English, and French.

Speak two or more languages

100%

100% of Mainframe experts in Vienna speak two or more languages.

Based on our profile pool as of 5 Nov 2026.

Daily rate distribution

0% 25% 50% 75% 100%
13% of Mainframe experts in Vienna charge less than €640 per day.
38% of Mainframe experts in Vienna charge between €640 and €800 per day.
13% of Mainframe experts in Vienna charge between €800 and €960 per day.
13% of Mainframe experts in Vienna charge between €960 and €1120 per day.
25% of Mainframe experts in Vienna charge €1280 or more per day.
<€640 €640-​800 €800-​960 €960-​1120 €1280+

The chart shows how the daily rates of experts in this technology in Vienna 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 Vienna using Mainframe

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

1000
750
500
250
Rate comparison chart
Daily rate avg. 906 €

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 820 €

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

Mainframe 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 (75%)
  • Manufacturing (63%)
  • Professional Services (63%)
  • Government and Administration (63%)
  • Automotive (50%)
  • Energy (50%)
  • Healthcare (50%)

Please note that freelancers can work across multiple industries, so percentages overlap.

About the technology

Core systems

Mainframes are high-performance computers built to process large volumes of reliable, secure transactions. Companies use them for banking, insurance, public services, logistics and other operations where continuity and data integrity matter. The term often covers IBM Z systems and their z/OS environments.

Applications and workloads

Mainframe applications support account processing, payment clearing, policy administration, reservations and batch reporting. Many rely on COBOL, PL/I, JCL, CICS and IMS, often combined with relational databases such as Db2. Specialists maintain proven workloads while preparing them for new interfaces and business requirements.

Ecosystem and tooling

Strong expertise covers both application code and the operating environment around it. Relevant work may include:

  • COBOL, PL/I and assembler application maintenance
  • JCL, CICS, IMS and Db2 workload management
  • z/OS operations, security and scheduling
  • API integration with Java, cloud and distributed systems
  • Source control, testing and automated delivery practices

When companies hire specialists

Companies bring in freelance Mainframe professionals during modernization programs, critical migrations, audit preparation and capacity changes. They also need outside expertise when internal knowledge is concentrated in a small team or when a key workload must be stabilized without disrupting production. In Vienna, collaboration may combine remote delivery with on-site workshops for regulated or operationally sensitive environments.

Modernization paths

Mainframe modernization does not always mean replacing the core system. A suitable approach may expose services through APIs, move selected workloads, improve batch performance, introduce automated testing or refactor COBOL gradually. Specialists assess dependencies, data flows and operational risk before recommending a practical path alongside existing IBM Z investments.

What strong experts deliver

The best professionals understand business processing as well as technical constraints. They document undocumented dependencies, protect transaction integrity, test batch and online flows, and communicate clearly with application, security and operations teams. For Vienna-based projects, German communication can support local workshops, while distributed teams may work effectively in English when documentation and handovers are precise.

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Frequently asked questions

Not sure where to start with Mainframe? These answers cover the essentials.

A mainframe runs high-volume, business-critical workloads such as payments, account processing, insurance records, reservations and public-sector services. It is valued for transaction integrity, security, resilience and predictable processing at scale.

A mainframe and cloud environment serve different strengths, although they often work together. Mainframes provide stable transaction processing and centralized data control, while cloud systems offer flexible infrastructure and modern service patterns; integration is frequently more practical than a full replacement.

A strong Mainframe professional may also work with COBOL, JCL, CICS, IMS, Db2, z/OS security and batch scheduling. Experience with APIs, Java, automated testing, source control and cloud integration is valuable during modernization.

The right Mainframe freelancer should have completed work comparable to your workload, such as production support, COBOL enhancement, migration or API integration. Ask how they handled dependencies, testing, release controls and incidents rather than relying only on technology labels.

Mainframe work can often be delivered remotely when secure access, documentation and release procedures are established. Vienna-based companies may still prefer on-site workshops for architecture decisions, operational handovers or projects involving sensitive production environments.

COBOL modernization is often suitable when the existing application contains valuable business rules and reliable transaction flows. Incremental changes such as API enablement, automated testing or targeted refactoring can reduce risk compared with rewriting the entire system.

Ask a Mainframe specialist to explain a comparable system in terms of data dependencies, batch windows, online transactions, security and recovery. High-quality professionals make risks visible, document decisions and show how changes were tested before production release.

A Mainframe professional may work effectively in English when technical documentation and stakeholder communication are clear. German can be important for local workshops, business discussions and coordination with teams that operate in the Austrian market.

The average hourly rate of freelancers in Vienna, Austria who have used Mainframe in their recent projects is 113 €, which corresponds to a daily rate of about 906 € based on an 8-hour working day.

Of the freelancers in Vienna, Austria who have used Mainframe in their recent projects, 86% hold at least a Bachelor's degree, 71% hold at least a Master's degree, and 14% hold a doctorate.

On average, freelancers in Vienna, Austria who have used Mainframe in their recent projects have 30 years of professional experience, with a single engagement typically lasting around 2 years.

The most common languages among freelancers in Vienna, Austria who have used Mainframe in their recent projects are German (100%), English (100%), and French (38%).

The most common industries among freelancers in Vienna, Austria who have used Mainframe in their recent projects are Information Technology (100%), Banking and Finance (75%), and Manufacturing (63%).

The most common business areas among freelancers in Vienna, Austria who have used Mainframe in their recent projects are Information Technology (100%), Project Management (100%), and Product Development (75%).

Main locations of FRATCH Experts, who have recently used Mainframe

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.

Countries:

Vienna Graz

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