IBM Informix Experts in Germany
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Meet FRATCH Experts in Germany, who have recently used IBM Informix
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).
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)
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
Olaf T.
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 G.
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.
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
Frank B.
Last position:
System Engineer at Frequentis Comsoft
- Migrate company software to RHEL10
- Development in Bash, Python, C, Ansible
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
Stefan M.
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 O.
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 K.
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 M.
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).
Thomas B.
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
Allal K.
Last position:
Java Senior Full Stack Developer at Insurance ÖRAG
- Further development of a policy administration system (contract/claims) for the legal expenses insurer ÖRAG.
- My role: Senior Software Developer.
- The team consists of 12 developers.
- Technologies used: Java 8/21, Java EE, Quarkus, WebLogic, JPA, RabbitMQ, JTA, CI, CD, Jenkins, DB2, Maven, Jenkins, GIT (bitbucket) later GitLab, Junit, Elasticsearch, Mockito, Jira, SonarQube, Scrum, React, Workflow
- Migration and modernization of legacy systems: rewrote C and C++ code in Java to improve maintainability, scalability, and performance. Refactored Python into Java, including optimization and integration into modern architectures.
- Study on the use of AI (Codex) for implementing a Java feature. The goal is to compare the time spent and productivity of AI-supported development with a classic implementation by a developer. The results should show how strongly the use of AI affects development time and efficiency.
- Development of the following tariff calculators for the years 2024/2026: private, companies, doctors, farmers, owner-occupied G + H, landlords, traffic, club, top managers, sales representatives, special criminal law, savings bank, municipal, BayGT, doctors, Dehoga
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
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
65%
Master's degree or higher
43%
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 19 Sep 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.
Discover detailed IBM Informix rate benchmarks:
Explore rate insightsAverage 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 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 (99%)
- Banking and Finance (58%)
- Automotive (57%)
- Manufacturing (52%)
- Telecommunication (49%)
- Transportation (45%)
- Government and Administration (43%)
- Healthcare (42%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
High-Performance OLTP and Embedded Relational Data
IBM Informix is a relational database management system engineered for transactional processing, time-series data, and spatial workloads. Known originally as Informix Dynamic Server, the engine delivers low administrative overhead and self-managing capabilities. Organizations rely on it to handle mission-critical backends that demand continuous uptime and rapid transaction execution.
Core Tooling and Informix Ecosystem Architecture
The ecosystem encompasses native administration utilities, high-availability tools, and developer interfaces designed for resilient operation.
- Informix Dynamic Server core database engine
- High Availability Data Replication and Flexible Grid clustering
- Enterprise Replication for distributed environments
- Informix 4GL and modern ESQL/C application interfaces
- OpenAdmin Tool and onstat monitoring diagnostics
Industrial and Telecommunications Applications in Germany
Enterprises across Germany deploy Informix within discrete manufacturing, automotive supply chains, retail telemetry, and telecommunications operations. Its native time-series module processes massive volumes of sensor and meter readings efficiently. Local operations often integrate Informix instances with distributed ERP networks and warehouse execution systems that operate around the clock.
Scenarios Requiring Dedicated Informix Professionals
Organizations seek freelance specialists when internal database maintenance transitions into major modernization or remediation initiatives.
- Upgrading legacy server instances to current Informix releases
- Resolving complex lock contention and tuning shared memory
- Migrating 4GL codebases or configuring JSON and REST APIs
- Designing cross-datacenter failover and backup recovery routines
- Auditing transactional performance under fluctuating industrial workloads
Key Qualifications of Relational Engine Specialists
Competent specialists demonstrate deep familiarity with low-level storage allocation, dbspace layouts, and chunk management. They understand how sysmaster tables function and use command-line utilities like onmode, oncheck, and onbar for surgical troubleshooting. Beyond database configuration, strong professionals connect query optimization directly to application behavior and network latency.
Modern Infrastructure Integration and Migration
Recent initiatives often bridge on-premises Informix databases with containerized services, Linux environments, and hybrid cloud backbones. Specialists implement automated monitoring, secure socket connections, and seamless extraction pipelines into analytical data warehouses. Their contributions protect historical transactional data integrity while modernizing access paths for modern web applications.
Frequently asked questions
Everything clients usually want to know about IBM Informix, in one place.
Organizations deploy IBM Informix primarily for high-speed online transaction processing, time-series analysis, and embedded edge systems. Its engine excels at managing continuous streaming data alongside traditional relational tables without requiring separate database products.
While Oracle Database and IBM DB2 frequently power central corporate applications with heavy administrative overhead, Informix distinguishes itself through its compact footprint and self-healing features. It provides Enterprise Replication and automated memory allocation with minimal manual intervention, making it ideal for decentralized setups.
Proficiency with IBM Informix Dynamic Server regularly pairs with advanced Linux administration, shell scripting, and C or Java development. Familiarity with legacy Informix 4GL as well as modern connectivity through REST, JSON, and ODBC is equally valuable when modernizing older installations.
Complex migrations involving Informix engines require specialists with substantial hands-on background in storage structures, dbspace management, and schema conversion. Senior professionals ensure data consistency while minimizing production downtime during cross-platform cutovers.
Yes, configuration, query optimization, and maintenance of IBM Informix environments are typically executed via secure remote shells and management tooling. On-site visits are rarely required except for air-gapped manufacturing facilities or strict local compliance audits.
Clients in Germany frequently require an IBM Informix specialist who understands local data protection standards alongside strict production change windows. Clear communication in English or German and experience with industrial manufacturing workflows are standard prerequisites.
Evaluate candidates by their depth with core command-line tools like onstat, oncheck, and dbaccess, rather than generic SQL knowledge alone. A qualified Informix professional will demonstrate concrete experience with performance tuning, buffer pool optimization, and disaster recovery design.
Yes, IBM Informix remains actively developed and supported, receiving regular updates for modern operating platforms, container deployments, and security standards. Thousands of mission-critical systems worldwide rely on its ongoing maintenance stream.
The average hourly rate of freelancers in Germany who have used IBM Informix in their recent projects is 100 €, which corresponds to a daily rate of about 799 € based on an 8-hour working day.
Of the freelancers in Germany who have used IBM Informix in their recent projects, 65% hold at least a Bachelor's degree, 43% 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 (99%), Banking and Finance (58%), and Automotive (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 (80%), 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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