IBM Informix Experts in Germany
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Meet FRATCH Experts in Germany, who have recently used IBM Informix
Christian Wonneberger
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
Olaf Taesch
Last position:
BI Architect in a Kanban Team at Gulp / Randstad for HHLA
- Creation of automated tests.
- Extension of the functionality of the enterprise BI data warehouse.
- Design and development in SQL and PL/SQL.
- Data modeling as well as performance measurement and tuning.
- Creation of and contribution to user stories and concepts.
- Technical environment: Windows, Linux.
- Database: Oracle 19c incl. DWH, CDB, PDB.
- Tools: Confluence, CVS, Eclipse, Git, GitLab, Jira, N4, PL/SQL, SQL Developer, utPLSQL.
Alexandra Grözinger
Last position:
Test Coordinator Project GoDigital at Insurance company
Support of test management and consulting on replacing the existing core system for non-life insurance with a modern IT platform.
Planning and controlling test execution as well as test analysis.
Documentation of test results in JIRA/XRAY and defect management.
Creating and continuously updating checklists to ensure quality.
Creating Confluence pages to support test execution and its documentation.
Creating test completion reports after each test cycle.
Methods: process planning, status tracking, process optimization, process execution, process quality assurance.
Tools: MS Office, Outlook, JIRA, Confluence, Wiki.
Benefit: Support for test management in the preparation, execution and documentation of the different test cycles.
Frank Bergmann
Last position:
System Engineer at Frequentis Comsoft
- Migrate company software to RHEL10
- Development in Bash, Python, C, Ansible
Ernst Höfler
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
Stefan Marx
Last position:
Bundesrechtsanwaltskammer
- Design, planning and execution of complex acceptance tests for a document exchange platform for the German justice authorities.
- Validation of decrypted and certificate-based message exchange via web platform, mobile app, and Java API.
- Documentation of test cases, execution steps, and test results.
- Technologies: Windows 11/10, Ubuntu, iOS, Android, Bash for Windows, Java 17, IntelliJ, Git, Jira, Confluence, Citrix Server, xJustiz standard implementation, specific justice software.
Alex Odesser
Last position:
Contractor at Telefonica Germany GmbH & Co. OHG
- Data-analysis, Preparation, gathering and coordination of business requirements for retrieval of monthly- and long term (CLV – relevant) cost- and revenue-components per contract for a customer–base–grouping project (HUB–Project) for B2C-Postpaid-Controlling
- Concept and Implementation of cost- and revenue-KPIs calculation and corresponding CLV–reports (Oracle, Perl, SVN, MS SQL Server, MS Power BI, Serviceware Performance Analytics)
- Operational support of the HUB-Project – various ad-hoc reports, deployments, job-scheduling etc. (Oracle, SVN, BICSuite–Scheduler, DWSODA etc.)
- Analysis, implementation, retrieval and reporting of various physical and financial KPIs for B2P-Prepaid Business on an existing data-mart (Oracle, Perl)
Jürgen Kasch
Last position:
Interim Management / Business Succession – Process Analysis & Stakeholder Management
As part of the preparation and operational support of a business succession:
- Company analysis: Analysis of the overall economic, organizational and structural situation (current state, strengths/weaknesses, risk potentials)
- Process analysis: Recording and documentation of all relevant business processes (BPMN, UML) in the areas of management, finance, procurement, sales and operations
- Process optimization: Identification of weaknesses and inefficiencies, development and operational implementation of improvement measures
- Stakeholder management: Identification and analysis of all relevant internal and external stakeholders; structured communication and coordination with previous and future owners, shareholders and employees
- Change management: Supporting the workforce and management through the handover process; building acceptance and trust among all participants
- Governance & documentation: Creation and handover of structured operation manuals, process documentation and organizational handbook for the new business owner
- Risk & vulnerability analysis: Assessment of operational and strategic risks in the handover process and development of recommended actions
- Operational support: Interim takeover of leadership tasks; ensuring business continuity during the transition phase
Miodrag Mikulic
Last position:
Lead 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, sub-project lead, system sub-project 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 lead, development of functional specifications, sub-process frameworks for RM, CM, V&V.
Mahle Electric Drives: system requirements engineer, algorithm optimization, embedded C/C++, unit and integration tests.
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: memory-efficient AUTOSAR architecture, BSW and ASW integration, automation of documentation and code generation.
KOM Technologies Group: internal SW development subcontracting for Daimler OHCM, CAN driver, 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).
Antonio Disarò
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
Thomas Blasi
Last position:
CIO of the corporate group at Badische Stahlwerke GmbH
- Member of the strategic management team
- Responsible for 50 direct reports and functional responsibility for 25 more
- Realigned the global IT strategy and merged individual IT divisions of the business units
- Led the central international IT organization of the corporate group
- Budget responsibility of €20 million p.a.
- Strategic advisor to the executive board
- Contributor to the company's strategic decisions as a leadership team member
- Driver of digitalization
- Evolved the global team structure across entities in a matrix setup
- Initiated and implemented process changes
- Operated and provided the central IT infrastructure including the data center for the entire group
- Designed the global application architecture
- Implemented AI-powered solutions
- Responsible for IT governance based on ISO 27001
- Rolled out Microsoft M365
- Conducted an ERP selection process for the corporate group
- Designed and implemented the new organizational structure as a foundation for future success
- Introduced requirements management, project portfolio management and capacity planning for cross-company IT within six months
Johannes Euteneier
Last position:
Freelance Software Consultant at S|R Software GmbH & Co. KG
- Provided consulting for modernizing legacy applications
- Delivered critical features under tight deadlines for backend and frontend
- Technologies: C#, .NET, WPF, WCF, REST, Angular, MS SQL Server
Achim Reiners
Last position:
Project and Program Manager, PMO Lead at Freelancer / Interim Manager
- Project management for the location consolidation of a major telecom provider (client: Telefonica) since 2023
- IT multi-project management for a large leasing company (client: Athlon) from 2021 to 2022
- Migration of applications to the cloud and to another data center
- Extension and optimization of the application landscape through additional projects
- Project management for developing a platform for internet access on airplanes of various airlines (client: m3Connect/Deutsche Telekom) 2021
- Responsible leadership of an IP network consolidation (infrastructure project) at a major telecom provider (client: Cisco/Vodafone) from 2017 to 2020
- Planning and coordination of migrations and rollouts
- Team leadership integrating different teams (network operators, hardware and service suppliers)
Tobias Rudolph
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).
Ulm Paunel
Last position:
DataStage ETL Expert at ING Bank
- Datastage 11.7, dbt, Oracle 19, Python 3.12 / PySpark 3.5, Azure GitHub, Azure DevOps, Automic
- Development of migration jobs to transfer data from the collection DWH to the new Risk Mart, as well as development of ETL pipelines to migrate historical data from the old Mart to the new Risk Mart.
- Storage of the silver layer on Hadoop and the gold layer in Oracle.
- Translation of DataStage jobs into dbt to publish reporting data in Google Cloud to a PostgreSQL database.
- Creation and optimization of complex SQL queries for data extraction from a data vault, taking into account historical data in the point-in-time tables.
- Creation of Oracle table definitions (DDL) and adjustment of existing stored procedures.
- Versioning changes in GitHub and deployment via the CI/CD portal.
- Refactoring long-running DataStage jobs into Python using PySpark to reduce server load.
- Migration of SAS scripts to PL/SQL, including new development of distribution functions that have no direct equivalent in Oracle.
- Development of Automic jobs to run DataStage pipelines and Python scripts (PySpark jobs) that control the population of the SME and institutional risk tables in the Risk Mart and perform business calculations.
- Participation in the agile process, including creating user stories, estimations, and planning in Azure DevOps.
- Handling Azure DevOps tickets and close collaboration with testers and business teams for error analysis and resolution.
Discover over 15,000 top freelancers
Statistics of experts using IBM Informix
Aggregated from the professional profiles of matched freelancers.
Experience
30 years
Position duration
2.7 years
Positions per freelancer
21
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Banking and Finance, Automotive
Certification focus areas
Information Technology, Project Management, Product Development
Bachelor's degree or higher
64%
Master's degree or higher
41%
Doctorate
3%
Certifications per freelancer
2
Most common languages
German, English, French
Speak two or more languages
99%
Based on our profile pool as of 30 Aug 2026.
Daily rate distribution
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 IBM Informix
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 30 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
About the technology
Core use
IBM Informix is a database system used for transactional workloads, embedded applications, and systems that must stay stable under long daily operation. Companies bring in specialists when they need reliable SQL processing, careful maintenance, or help keeping older Informix Dynamic Server environments running cleanly.
Typical work
- Database setup and upgrade planning
- SQL tuning and query review
- Backup, recovery, and failover design
- Replication and high availability support
- Troubleshooting of slow or unstable systems
Ecosystem
Strong IBM Informix work usually includes IDS, SQL, SPL, client libraries, and administration tools around storage, logs, and replication. Professionals often work with Unix, Linux, Windows, and integration layers that connect Informix to reporting tools, middleware, or older business applications.
When to hire
Companies usually look for freelance expertise when an internal team lacks deep Informix knowledge, when an upgrade is risky, or when production issues need focused attention. In Germany, this often comes up in manufacturing, logistics, insurance, retail, and other environments where stable data access matters more than a full rebuild.
What good specialists do
- Read system behavior from logs and statistics, not guesses
- Keep changes small and reversible in production
- Protect data integrity during maintenance windows
- Document decisions clearly for handover teams
- Work well with application, operations, and infrastructure teams
Search terms
People often search for IBM Informix, Informix, or Informix Dynamic Server when they need help. Good specialists understand the product history, current IBM naming, and the older IDS footprint that many systems still depend on. That mix matters when the goal is to keep business software running without disruption.
Frequently asked questions
Everything clients usually want to know about IBM Informix, in one place.
IBM Informix is used for transactional systems, embedded databases, and workloads that need dependable query performance over long periods. It is common in business applications that must keep running while data stays consistent and recoverable.
IBM Informix is often chosen for stability, compact operations, and strong support for legacy systems that have grown around it. Compared with more general-purpose database stacks, it is frequently valued where an existing Informix footprint must be maintained rather than replaced.
A strong Informix specialist helps with both. Upgrades, storage changes, replication work, and performance issues can all benefit from focused experience because a small mistake can affect the whole application chain.
A strong IBM Informix professional usually also understands SQL, Unix or Linux administration, backup and recovery methods, and basic scripting for automation. For integration work, knowledge of middleware and surrounding application services is useful too.
Most Informix work needs someone who has handled production systems before, not just learned the product in theory. The right level depends on the task: query tuning and incident work need deeper product knowledge than simple monitoring or routine maintenance.
Yes, much of Informix support can be done remotely if the team can provide access to logs, system metrics, and a safe change process. On-site work in Germany is more useful when hardware, local operations, or sensitive release windows require direct coordination.
Look for clear troubleshooting steps, careful change planning, and proof that the person has supported real production systems. A good IBM Informix specialist explains trade-offs, writes clean handover notes, and avoids risky assumptions when the system is under load.
Often yes, if the application is already built around Informix and stability matters more than migration. The right specialist can extend the life of the current setup, reduce risk, and plan a move only when the business case is solid.
The average hourly rate of freelancers in Germany who have used IBM Informix in their recent projects is 101 €, which corresponds to a daily rate of about 805 € based on an 8-hour working day.
Of the freelancers in Germany who have used IBM Informix in their recent projects, 64% hold at least a Bachelor's degree, 41% hold at least a Master's degree, and 3% hold a doctorate.
On average, freelancers in Germany who have used IBM Informix in their recent projects have 30 years of professional experience, with a single engagement typically lasting around 2.7 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 (32%).
The most common industries among freelancers in Germany who have used IBM Informix in their recent projects are Information Technology (97%), Banking and Finance (59%), and Automotive (55%).
The most common business areas among freelancers in Germany who have used IBM Informix in their recent projects are Information Technology (100%), Product Development (78%), and Project Management (72%).
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.
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FRATCH CEO
