IBM Informix Experts in Frankfurt
in minutes from over 15,000 CVs with the power of AI.Hire experts who keep IBM Informix stable, tune SQL and indexes, and handle upgrades, replication, and backup recovery. Get fast, precise matching with vetted, available freelancers.
Meet FRATCH Experts in Frankfurt, who have recently used IBM Informix
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
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.
Christopher Eshemokhai
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 Van Der Bolt
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 Cho
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 Hammerbacher
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: 64%)
Master's degree or higher
100% (Germany: 41%)
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 30 Aug 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 30 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
About the technology
What it is
IBM Informix is a relational database platform built for reliable transactional systems and time-sensitive workloads. Many teams still know it simply as Informix or as Informix Dynamic Server, especially in long-running enterprise environments. It is used where stable data access matters more than constant change.
Typical work
- Maintain OLTP databases and SQL-heavy business applications
- Support replication, high availability, and backup routines
- Tune queries, indexes, and storage layout
- Plan upgrades, migrations, and version compatibility checks
Skills that matter
Strong specialists understand Informix architecture, SQL, locking, logging, and performance analysis. They also work with shell scripting, Linux or Unix systems, and common database tools used for monitoring, export, and recovery. Experience with legacy application stacks is often important.
When teams bring help
Companies usually look for freelance expertise when an Informix estate is old, business-critical, or underdocumented. That is common in finance, manufacturing, logistics, and public-sector systems in Frankfurt and across Germany. External support helps when internal knowledge is thin or a project needs focused delivery.
What good experts do
Good professionals do more than fix alerts. They diagnose slow queries, verify backups, test restore paths, document changes, and reduce risk before upgrades or cutovers. They also communicate clearly with application teams so database work does not block delivery.
How to scope the work
A clear brief helps specialists move fast. Share the current Informix version, platform, data volume, main pain points, and any change windows or compliance needs. That makes it easier to match the right expert for remote support, on-site work in Frankfurt, or a mixed setup.
Frequently asked questions
What clients ask us most about IBM Informix — answered in short.
IBM Informix is used for transactional systems that need steady response times and dependable data handling. It is common in applications for operations, billing, logistics, retail back offices, and other systems where the database must stay predictable under load.
Yes, in practice people often use those names for the same product family. Informix is the short name searchers use, while IBM Informix and Informix Dynamic Server point to the same core database platform and its enterprise editions.
IBM Informix is often chosen for stable enterprise workloads that already run on it and need careful support rather than a full rewrite. Compared with PostgreSQL or Oracle, the main question is usually compatibility, operational fit, and how much custom application logic depends on Informix behavior.
A strong IBM Informix specialist usually knows SQL tuning, Linux or Unix administration, backup and recovery, and scripting for automation. In many projects, experience with replication, high availability, and legacy application integration matters just as much as database knowledge.
IBM Informix projects can be simple maintenance tasks or complex recovery and migration work. Small fixes may only need targeted expertise, while upgrades, performance issues, or production incidents need someone who has handled similar systems before and can work safely under pressure.
Many Informix tasks can be handled remotely, such as analysis, tuning, documentation, and planning. On-site support in Frankfurt becomes more useful for change windows, hands-on coordination with operations teams, or environments with strict access rules.
Look for evidence of real production work on IBM Informix, not just general database experience. Good signs are clear explanations of past incidents, disciplined backup and restore habits, structured upgrade planning, and practical advice that fits your current version and setup.
Ask which versions they have supported, how they approach slow queries, and what they check before any change in production. For Informix, it also helps to ask about restore testing, replication troubleshooting, and how they document handover for your internal team.
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.
Berlin 
Munich Request a free demo
Get in touch with the FRATCH team and we will get back to you within 4 hours.
Would you rather directly get in touch?
We always have the time for a call or email!
Philipp Thomaschewski
FRATCH CEO
