IBM Informix Experts in Frankfurt
in minutes from over 15,000 CVs with the power of AIHire experts who keep IBM Informix systems stable, tune SQL and indexes, and support replication, backups, and upgrades. Get matched fast with vetted, available freelancers for short tasks or full delivery.
Meet FRATCH Experts in Frankfurt, who have recently used IBM Informix
Johannes E.
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
Ulm P.
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.
Christopher E.
Last position:
Senior Oracle DBA and WebLogic Administrator, Oracle Business Intelligence for Applications
- Oracle databases 11g, 12c and 19c RAC
- Installation, configuration and deployment of Oracle Fusion Middleware 11g & 12c (WebLogic, SOA, Oracle Forms and Report Server, etc., OBIA)
- Administration of Oracle 11g, 12c, RAC and 19c
- Applying patches
- Installation, configuration and deployment of Tomcat
- Oracle tuning
- The system includes several production, QA, test & development Oracle databases and WebLogic application servers 11g & 12c
Huib V.
Last position:
Senior Business Analyst for Customer Data at ING
- Analysis and process design for developing a new name change process
- Analysis of using customer master data in a new document generation system
Andreas C.
Last position:
Agile Tester at EWE AG
- Test management/coordination and defect management for the decentralized feed-in process (Meter2Cash process)
- Test planning and creation of test cases, test execution, and test plans
- Defect pre-analysis and dispatch
Jörg-Ulrich H.
Last position:
Data flows for health insurance providers
- Further development and creation of data flows for health insurance providers
- Data management across various storage systems (DB2, MSSQL, PostgreSQL, S3, custom APIs, ...)
- Documentation and training
- Planning and deployment of NiFi 2.x (major upgrade)
- Integrating Grafana for visualization, monitoring, and alerting
- Extensive use of the NiFi API to continuously monitor the system and its components
Discover over 15,000 top freelancers
Statistics of experts using IBM Informix
Aggregated from the professional profiles of matched freelancers.
Experience
29 years (Germany: 30 years)
Position duration
1.8 years (Germany: 2.7 years)
Positions per freelancer
24 (Germany: 21)
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Banking and Finance, Transportation
Bachelor's degree or higher
100% (Germany: 65%)
Master's degree or higher
100% (Germany: 43%)
Certifications per freelancer
0 (Germany: 2)
Most common languages
German, English, French
Speak two or more languages
100% (Germany: 99%)
Based on our profile pool as of 19 Sep 2026.
Daily rate distribution
The chart shows how the daily rates of freelancers in this technology in Frankfurt 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 Frankfurt 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 19 Sep 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 (100%)
- Banking and Finance (83%)
- Transportation (83%)
- Automotive (67%)
- Energy (67%)
- Government and Administration (67%)
- Telecommunication (67%)
- Education (50%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Core use
IBM Informix is a relational database for applications that need reliable transaction handling and low operational overhead. It is common in systems that must stay responsive under steady load and in environments where mature database controls matter. Many teams still know it as Informix or IDS, and some search by the older Informix Dynamic Server name.
What experts deliver
- SQL tuning and query review
- Schema design and stored procedure work
- Backup, restore, and recovery setup
- Replication and high-availability support
- Upgrade planning and production fixes
Tooling and stack
Strong professionals work with dbaccess, onstat, onmode, and the wider Informix server toolset. They understand storage layout, logs, isolation levels, and how application code interacts with the database. They also know when to adjust indexes, buffering, or configuration instead of changing the application.
When to bring help
Companies usually need freelance expertise when a system becomes slow, a release touches critical tables, or an upgrade must be done with minimal risk. In Frankfurt, this often matters for finance, logistics, and other data-heavy teams that need careful coordination across local and remote specialists. The right expert can join for assessment, rescue work, or implementation.
What strong specialists know
A good IBM Informix specialist reads execution plans, traces locking issues, and spots data access patterns that cause delays. They write clean SQL, handle migration tasks, and document changes in a way operations teams can support later. They also work well with application specialists, because database fixes often depend on both sides.
Choosing the right fit
Look for direct experience with your Informix version, your operating system, and the way your applications use the database. Ask for examples of performance tuning, recovery planning, and production troubleshooting. Clear communication matters too, especially when a Frankfurt team wants on-site coordination but daily delivery can still happen remotely.
Frequently asked questions
What clients ask us most about IBM Informix — answered in short.
IBM Informix is used for transactional systems, embedded database work, and applications that need dependable SQL behavior with careful control over performance. Teams also use Informix for workloads where stability and predictable administration matter more than frequent platform changes.
IBM Informix is the current product name, while Informix and IDS are common search terms people still use. IDS usually refers to Informix Dynamic Server, which many professionals mention when discussing older deployments or migration work.
A strong IBM Informix freelancer helps when a system is slow, a backup or restore is risky, or an upgrade needs careful planning. Companies also bring in specialists for production incidents, schema changes, or tuning after a new release.
IBM Informix is often chosen for mature systems that already rely on its tooling, operational model, and application behavior. Compared with PostgreSQL or Oracle, the main question is usually not feature count but migration effort, compatibility, and the risk of changing a running business system.
A good IBM Informix specialist should also know SQL tuning, Unix or Linux administration, scripting, and backup and recovery methods. Experience with replication, application integration, and general database troubleshooting is also valuable.
For routine support, a IBM Informix specialist with solid production experience can often handle the work quickly. For migrations, high-availability setups, or complex performance issues, you want someone who has already solved similar problems in live environments.
Yes, much IBM Informix work can be done remotely, especially analysis, tuning, and planning. On-site presence in Frankfurt can still help during go-live windows, stakeholder workshops, or incidents that need close coordination with local teams.
Look for clear explanations, specific examples, and a practical approach to risk. A strong IBM Informix freelancer should be able to explain why a change helps, how they test it, and what they do if recovery is needed. Ask how they document handover so your team can keep running the system.
The average hourly rate of freelancers in Frankfurt, Germany who have used IBM Informix in their recent projects is 105 €, which corresponds to a daily rate of about 839 € based on an 8-hour working day.
Of the freelancers in Frankfurt, Germany who have used IBM Informix in their recent projects, 100% hold at least a Bachelor's degree and 100% hold at least a Master's degree.
On average, freelancers in Frankfurt, Germany who have used IBM Informix in their recent projects have 29 years of professional experience, with a single engagement typically lasting around 1.8 years.
The most common languages among freelancers in Frankfurt, Germany who have used IBM Informix in their recent projects are German (100%), English (100%), and French (17%).
The most common industries among freelancers in Frankfurt, Germany who have used IBM Informix in their recent projects are Information Technology (100%), Banking and Finance (83%), and Transportation (83%).
The most common business areas among freelancers in Frankfurt, Germany who have used IBM Informix in their recent projects are Information Technology (100%), Product Development (100%), and Quality Assurance (83%).
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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