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IBM Informix Experts in Germany

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Hire experts who maintain Informix databases, modernize legacy applications, optimize SQL workloads and connect operational data with enterprise systems. Get precise matching with vetted, available freelancers who fit your IBM Informix project.

Meet FRATCH Experts in Germany, who have recently used IBM Informix

Verified expert

Tobias R.

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M&A IT Project Manager / Cross-functional Technical and Integration Manager

Weikersheim
Tobias R.

Last position:

M&A IT Project Manager / Cross-functional Technical and Integration Manager at Sandoz AG

  • Worked for several M&A projects (Eire, Sunshine C, Coral) in the role of IT project manager and cross-functional technical manager / integration manager.
  • Preparation and maintenance of project charters, project change requests and project plans.
  • Weekly project status report.
  • Preparation of decision papers and steering committee slidedecks.
  • Risk & issue management.
  • Tracking and managing activities, dependencies and deliverables across all functional IT domains.
  • Data migration (planning and execution).
Verified expert

Achim R.

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Project and Program Manager, PMO Lead

Leverkusen
Achim R.

Last position:

Project and Program Manager, PMO Lead at Freelancer / Interim Manager

Successful delivery of projects on behalf of customers:

  • -> 2023 – present: Project management for the consolidation of sites/data centers for a large telecommunications provider (infrastructure project, customer: Telefonica)

  • Opening and preparing new sites

  • Application migrations

  • Decommissioning and handover of old sites

  • -> 2021 – 2022: IT multi-project management for a large car leasing company (customer: Athlon)

  • Migration of applications to the cloud and to another data center

  • Additional projects to expand and optimize the application landscape

  • -> 2021: Project management for the development of a platform providing internet access on aircraft operated by various airlines (customer: m3Connect/German Telekom)

  • -> 2017-2020: Responsible management of an IP network consolidation (infrastructure project, customer: Cisco/Vodafone) at a large telecommunications provider

  • Planning and coordination of migrations and their rollout

  • Team leadership and integration of different teams (network operators, hardware and service providers)

Verified expert

Michael L.

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Project Manager (Interim)

Dorsten
Michael L.

Last position:

Head of IT at Ruthmann Holdings GmbH

  • Management of IT with 10 employees, including budget and personnel responsibility.
  • Harmonization of the Navision systems in Germany, Switzerland and Austria.
  • Connection of the ERP systems in Switzerland, Austria and Italy to the central Microsoft Power BI systems in Germany.
  • Rollout of a new firewall at 10 locations in D, CH and A.
  • Evaluation of a new DMS.
  • Migration to Windows 10 / 11.
  • Transformation of 9 countries into ONE Europe.
  • Start of NIS2 implementation in 5 European countries.
Verified expert

Florian S.

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Senior ABAP/4, ABAP Objects Developer

Munich
Florian S.

Last position:

ABAP/4, ABAP Objects Developer at Migros-Genossenschafts-Bund

  • WRICEF objects (Reports, Interfaces, Conversions, Enhancements, Forms and Workflow) in the FI and CO modules of S/4HANA ECC using ABAP OO
  • Use of SAP HANA Studio, AIF, SAP Solution Manager, Confluence and Jira
  • Environment: SAP S/4HANA on Premise 2020
Verified expert

Jürgen S.

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IT – Consultant / Analyst / Developer / Tester / Support

Erkrath
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
Verified expert

Christian W.

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Project Manager, Interim Manager, Application Manager

Düsseldorf
Christian W.

Last position:

Software Engineer, cross-platform Application Manager at International major bank

  • Creating interfaces between the legacy platform and the new container solution
  • Coordinating required contributions from line units
  • Moderating regular status meetings with the software vendor
  • Minimally invasive conversion of TWS scheduling from the old to the new platform
  • Environment: IBM Mainframe, DB2, CICS, MQ, Red Hat Linux, Oracle, Kubernetes, Kafka, Helm, GitLab, Jenkins
Verified expert

Gerd P.

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C# Contract Programming for Special-Purpose Machinery/Visualization Technology

Finning
Gerd P.

Last position:

C# Contract Programming for Special-Purpose Machinery/Visualization Technology at Volkswagen Deutschland

C# Contract Programming for Special-Purpose Machinery/Visualization Technology

C# contract programming; .net; WPF, WCF, MVC, MVVM

Customization and further development of control software for special-purpose machinery (programming machine sequences), with corresponding interface connections to create a graphical user interface for the mechanical engineering environment (mapping scan processes in 3D)

Quality assurance before handover for use in the customer's live operations

Software, hardware and systems used:

  • Windows 2003 Server
  • Windows 2008
  • Visual Studio 2012 and later
  • Various customer-specific hardware and software
  • .net Framework
  • TFS
Verified expert

Knud W.

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Lead Programmer, Architect and Deputy Product Owner

Leipzig
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
Verified expert

Luca P.

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ERP Program Manager

Hofheim in Unterfranken
Luca P.

Last position:

ERP Program Manager at Fiserv

  • The customer is undergoing a comprehensive transformation. All SAP ECC landscapes worldwide are being migrated to SAP S/4HANA, with the goal of introducing a standard template worldwide.

  • The program also includes the “RISE with SAP” migration and modernization program, which may involve migrating the landscapes of selected country installations to the SAP Private Cloud.

  • On the stakeholder side, the program reporting line extends to the company’s executive board and that of the implementation partner.

  • Fiserv Germany’s ERP landscape currently includes several non-standard SAP tools and applications that extend the functionality of the ECC environment and can often be integrated into downstream systems. As part of the transition to SAP S/4HANA, it is essential to assess the core functionality, integration points and future viability of these applications in order to determine their alignment with the target architecture.

  • The focus of the work is on providing expert advice and assessment to define the scope, strategy and roadmap for transitioning Fiserv Germany’s SAP ECC system to SAP S/4HANA.

  • The recommended best practices from SAP are followed and a structured approach is used to ensure a smooth transition with minimal disruption while maximizing business value.

  • This assessment forms the basis for a successful SAP S/4HANA transformation and ensures alignment with industry best practices, regulatory compliance and future scalability.

  • Migration Strategy Definition – assessment of available transition approaches based on business objectives, technical feasibility and SAP Best Practices.

  • Technical Readiness Assessment – conducting a system analysis to assess compatibility, custom code impact, data volume management, integration points and infrastructure readiness for SAP S/4HANA.

  • Business Process Impact Analysis – reviewing the latest business process documentation to define the scope and effort required to implement the necessary functions in SAP S/4HANA and to identify opportunities for process optimization.

  • Roadmap for Non-SAP Systems and Applications – assessment of third-party and legacy applications regarding their integration with SAP S/4HANA and recommendation of consolidation, migration or replacement strategies.

  • Deployment & Implementation Planning – defining a phased approach for implementation, including project schedules, risk mitigation strategies and key milestones aligned with business priorities.

  • This transformation takes place in phases: the Discovery phase leads to the Explore phase, which is followed by the Design phase and finally implementation.

  • Program management

  • Change management

  • Requirements management

  • Transition management

  • Stakeholder management

  • Risk management

  • Comprehensive coordination

Verified expert

Ernst H.

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Support/Development/Consulting – Process Development, E-Invoicing, XRechnung, ZUGFeRD

München
Ernst H.

Last position:

Support/Development/Consulting – Process Development, E-Invoicing, XRechnung, ZUGFeRD

  • Support and further development of a complex process for creating XML documents for electronic invoices / E-Invoicing (XRechnung, ZUGFeRD)
  • Automation of operational processes, process development and optimization
  • Development of frontend applications with MS Power Apps
  • Porting SQL Server 2016 to SQL Server 2022
  • SQL Server database administration
Verified expert

Antonio D.

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IT Consultant

Munich
Antonio D.

Last position:

Agile Project Manager at Openry GmbH

End Customer: Openry GmbH

E-commerce platform to globally commercialize high-quality Italian artistic productions. Several European shops are already operational and Asian markets soon coming up. My role as Agile Project Manager is to lead the complete team on both the customer and technical side (offshore) including strong strategic consulting, in a continuous delivery approach. As project in a small enterprise, the budget management aspects are particularly challenging, in a quest to deliver the maximum business value with minimal overheads. Technologies: Magento 2, M2E Pro, Linux, Apache, MySql, PHP (LAMP), Stripe

Verified expert

Frank B.

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Linux Expert, Engineering/Development/Security, C/Java/Python/JS

Herford
Frank B.

Last position:

System Engineer at Frequentis Comsoft

  • Migrate company software to RHEL10
  • Development in Bash, Python, C, Ansible
Verified expert

Bernd H.

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Graduate Mathematician

Verbandsgemeinde Diez
Bernd H.

Last position:

Deutsche Bahn

  • Migration of the platform to X systems
  • Analysis of changes related to TCP/IP communication
  • Handling error tickets
  • Installation and configuration of Xypro Security 1 attack detection
  • Setting up an SNMP.v3 connection to send alert traps to Netcool (Tivoli)
  • Installation and configuration of the RemoteAnalyst software
  • Migration of master data and timetable data
  • Setting up and monitoring MQ pipelines to external partners
Verified expert

Miodrag M.

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Senior Consultant for System Software Development and Project Management

Sindelfingen
Miodrag M.

Last position:

Senior Consultant for System Software Development and Project Management at KOM Motive Ltd

  • Consulting and project management for customers such as Advantest, IBM, Mercury Computer Systems Inc, Adara Networks, Themis Computers, CheckPoint, Smart Technologies Inc, Soma Networks Inc, Plus Server AG, Positron Inc.

  • Roles: Software Team Lead, Subproject Lead, System Subproject Lead, System Engineering, Requirements Engineering and Management, QA and Process Expert.

  • Automotive industry experience (2008–2025) with customers such as Elektrobit, Valeo, Magna, Bosch, Continental, Schaeffler, BMW, TRW, ALPS.

  • Project examples:

  • Hanon Systems: CI/CD development and test automation (ETAS ISOLAR AUTOSAR, Jenkins, AWS, Azure).

  • Magna Inc. and GETRAG: Consulting for SW integration and process improvement (ASPICE audit, ASIL-B).

  • Valeo: SW project lead for Park Assist and Volvo/JLR, release planning, mentoring, process adjustments, ASPICE compliance.

  • Schaeffler AG: System engineer and SW project manager, development of functional specifications, subprocess frameworks for RM, CM, V&V.

  • Mahle Electric Drives: System Requirements Engineer, algorithm optimization, Embedded C/C++, unit and integration testing.

  • Bosch/Daimler: Design and development of Multi-Core-AUTOSAR and RTE layers, Continuous Integration Framework, Change Management.

  • Elektrobit: Development of AUTOSAR BSW configuration tools, bootloader framework, performance optimization, debugging.

  • ALPS Automotive/CDN Automotive: Low-memory AUTOSAR architecture, BSW and ASW integration, automation of documentation and code generation.

  • KOM Technologies Group: Internal SW Development Subcontracting for Daimler OHCM, CAN drivers, SSA integration, AURIX MCAL development.

  • Extensive Linux/Automotive experience (2005–2025) at MBTI, Advantest Corporation, Harman Samsung, Valeo, Molabo GmbH, Continental Automotive, Mercury Computer Systems Inc, General Dynamics Mission Systems, US Telco Vendor, Adara Networks, Positron Inc, Soma Networks Inc, CheckPoint, NDA projects, Plus Server AG, KOM Technologies Group (R&D).

Discover over 15,000 top freelancers

Statistics of experts using IBM Informix

Aggregated from the professional profiles of matched freelancers.

Experience

31 years

IBM Informix experts in Germany have 31 years of professional experience on average.

Position duration

2.8 years

IBM Informix experts in Germany stay in a single position for 2.8 years on average.

Positions per freelancer

21

IBM Informix experts in Germany have completed 21 positions on average over the course of their careers.

Top business areas

Information Technology, Product Development, Quality Assurance

IBM Informix experts in Germany have gathered most of their hands-on project experience in Information Technology, Product Development, and Quality Assurance.

Top industries

Information Technology, Automotive, Banking and Finance

IBM Informix experts in Germany are most in demand in Information Technology, Automotive, and Banking and Finance.

Certification focus areas

Information Technology, Project Management, Product Development

IBM Informix experts in Germany earn their certifications most often in Information Technology, Project Management, and Product Development.

Bachelor's degree or higher

63%

63% of IBM Informix experts in Germany hold at least a Bachelor's degree.

Master's degree or higher

44%

44% of IBM Informix experts in Germany hold at least a Master's degree.

Doctorate

2%

2% of IBM Informix experts in Germany have a doctorate (PhD).

Certifications per freelancer

2

IBM Informix experts in Germany hold 2 professional certifications on average.

Most common languages

German, English, French

IBM Informix experts in Germany most often speak German, English, and French.

Speak two or more languages

99%

99% of IBM Informix experts in Germany speak two or more languages.

Based on our profile pool as of 29 Oct 2026.

Daily rate distribution

0% 25% 50% 75% 100%
11% of IBM Informix experts in Germany charge less than €640 per day.
34% of IBM Informix experts in Germany charge between €640 and €800 per day.
32% of IBM Informix experts in Germany charge between €800 and €960 per day.
15% of IBM Informix experts in Germany charge between €960 and €1120 per day.
8% of IBM Informix experts in Germany charge €1120 or more per day.
<€640 €640-​800 €800-​960 €960-​1120 €1120+

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.

Discover detailed IBM Informix rate benchmarks:

Explore rate insights

Average rates of experts in Germany using IBM Informix

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

1000
750
500
250
Rate comparison chart
Daily rate avg. 795 €

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

IBM Informix 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 (99%)
  • Automotive (57%)
  • Banking and Finance (57%)
  • Manufacturing (53%)
  • Telecommunication (50%)
  • Transportation (44%)
  • Government and Administration (43%)
  • Retail (43%)

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

About the technology

Core technology

IBM Informix is a relational database management system built for dependable transaction processing, embedded applications and operational workloads. It is known for a compact footprint, strong availability features and support for data that must remain accessible around the clock. Companies use it in retail, manufacturing, logistics, telecommunications and financial operations.

Typical workloads

Informix supports point-of-sale systems, inventory platforms, production control, order processing and field-service applications. It can run on premises, in virtual environments, containers or cloud infrastructure, depending on the system design and edition.

  • Transaction-heavy business applications
  • Embedded and edge data processing
  • High-availability operational databases
  • Reporting and integration workloads

Ecosystem and tooling

The ecosystem includes Informix SQL, stored procedures, SPL, triggers, replication and high-availability capabilities. Professionals often work with IBM Informix Client Software Development Kit, JDBC, ODBC, .NET providers and application frameworks that connect business software to the database. They may also handle UNIX or Linux administration, backup tools, monitoring and shell automation.

When expertise matters

Companies bring in freelance expertise when an established Informix system needs a safe upgrade, migration, performance review or urgent recovery plan. External support is also useful when internal knowledge is limited, documentation is incomplete or a modernization project must preserve critical business processes. In Germany, collaboration may involve remote delivery alongside on-site work at production or industrial locations.

Signs of a strong specialist

Good professionals understand both database behavior and the application that depends on it. They read execution plans, investigate locking and logging, tune storage and indexes, and test recovery procedures without putting live operations at risk.

  • Clear migration and rollback planning
  • Measured SQL and workload optimization
  • Reliable backup and recovery validation
  • Practical documentation for internal teams

Project fit and outcomes

The right specialist defines the current Informix estate before recommending change. They clarify data volume, availability targets, interfaces, operating systems and release constraints, then produce a plan that the business can test. Typical deliverables include a tuned database, migration scripts, integration components, monitoring rules, runbooks and knowledge transfer for the people who will operate the system.

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Frequently asked questions

Everything clients usually want to know about IBM Informix, in one place.

IBM Informix is used for reliable relational data processing in applications such as retail transactions, manufacturing control, logistics, telecommunications and embedded systems. It is a strong fit when consistent availability, efficient transactions and a compact operational database are important.

IBM Informix is often valued for its low administration overhead, compact footprint and suitability for embedded or distributed operational systems. Db2 and Oracle Database may be preferred for broader enterprise estates, while PostgreSQL is frequently considered for open-source flexibility; the right choice depends on application compatibility, operational constraints and migration risk.

A strong IBM Informix specialist commonly brings SQL, SPL, indexing, query analysis, backup and recovery, replication and high-availability knowledge. Experience with Linux or UNIX, JDBC, ODBC, .NET, shell scripting and the application layer is also valuable.

The required depth depends on the assignment. A controlled reporting change may need focused database knowledge, while a major upgrade, recovery design or migration from IBM Informix requires someone who has handled production dependencies, compatibility issues and rollback planning.

IBM Informix work can often be delivered remotely through secure access, monitoring sessions and documented change processes. On-site collaboration may still be useful for factory systems, restricted networks, hardware dependencies or workshops with operational teams in Germany.

Ask for concrete examples involving the relevant Informix release, operating system, workload and availability setup. A capable Informix professional should explain how they measure performance, protect production data, test recovery and document changes.

IBM Informix can remain a practical foundation while an application is modernized in stages. A specialist can separate database concerns from business logic, improve interfaces, introduce automated testing and plan a controlled move to another database only when the technical and business case supports it.

Quality means reproducible changes, clear assumptions, tested scripts and measurable results. For IBM Informix, the deliverable should also cover locking behavior, logging, backup and recovery, monitoring, security boundaries and the effect on connected applications.

The average hourly rate of freelancers in Germany who have used IBM Informix in their recent projects is 99 €, which corresponds to a daily rate of about 795 € based on an 8-hour working day.

Of the freelancers in Germany who have used IBM Informix in their recent projects, 63% hold at least a Bachelor's degree, 44% hold at least a Master's degree, and 2% hold a doctorate.

On average, freelancers in Germany who have used IBM Informix in their recent projects have 31 years of professional experience, with a single engagement typically lasting around 2.8 years.

The most common languages among freelancers in Germany who have used IBM Informix in their recent projects are German (100%), English (97%), and French (31%).

The most common industries among freelancers in Germany who have used IBM Informix in their recent projects are Information Technology (99%), Automotive (57%), and Banking and Finance (57%).

The most common business areas among freelancers in Germany who have used IBM Informix in their recent projects are Information Technology (100%), Product Development (81%), and Quality Assurance (73%).

Main locations of FRATCH Experts, who have recently used IBM Informix

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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