PL/SQL Experts in Cologne
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Meet FRATCH Experts in Cologne, who have recently used PL/SQL
Burhan Dinler
Last position:
Enterprise Architect & Solution Architect at DB Netz AG
With project PRIZMA, DB will modernize its infrastructure on the one hand, and develop a fail-safe IT landscape on the other hand, which can be restored quickly and securely in case of a disaster.
- Capture current architectures of existing systems as well as methodical consulting and development of target architectures
- Deepen and maintain the building plan / target IT landscape
- Implement technical architecture concepts & architecture descriptions
- Implement migration concepts for updating and further developing the platform and information systems
- Assess submitted improvement suggestions as part of the project
- Capability management: identify capability gaps, develop target visions, and support transformation planning within the enterprise architecture.
- Create a compatibility matrix of the components in use and compare dependencies of specific versions
- Create an IT concept for extending the platform with the following topics: hardware and software requirements, security, licensing, high availability, load balancing, backup & recovery, update strategy, monitoring integration, etc.
- Coordinate with business architects as well as technical architects from the cross-functional architecture area of the PRISMA program for the topics (backup, Active Directory, monitoring, Citrix, and business applications ...)
- Status meetings and alignment of project planning with the Release Train Engineer / Project Manager
- Advise the Release Train Engineer / Project Manager in identifying project risks
- Advise the System Architect Engineers in steering the implementation of the concept
- Implement the IT concept
- Document the infrastructure
Label: MS Project, LINUX, Windows, ORACLE, Java, REST, SharePoint, Microsoft Exchange, UML, Enterprise Architect, BPMN, AZURE, AWS, V-MODEL, Micro Service, VisualStudio, SAP S/4HANA, SCRUM(SAFE), ESB (TIBCO), Python, Innovator, LeanIX (TOGAF), Ansible, Ansible Tower, Ansible Automation, ROBOT, SpringBoot
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.
Sebastian Hefczyk
Last position:
Overall Project Manager; Turnaround Manager & Coach at Statutory Health Insurance Fund
- Taking over the troubled project from the internal project management and successful turnaround of project phase 1 (cutover of approx. 1000 servers (VMs)/standard desktops, specialized desktops)
- Responsible project management for the successful phase 1 transition (planning in the shortest possible time followed by implementation (very successful with low ticket volume))
- Stakeholder management – taking over direct (daily before cutover) communication with the client from the Chief Operation Manager in the format of regular meetings in taskforce mode. Rapid rebuilding of the previously lost trust base and restoration of the client relationship for optimal satisfaction
- Taskforce mode to eliminate all existing issues/showstoppers before cutover
- Scope clarification, setup, and scheduling of phase 2 activities (e.g. silo/admin servers)
- Kick-off of phase 2 / handing the project back to the success line for the internal project management/line to handle the remaining defined topics
- Establishing, preparing, and conducting steering committees with V-1 management to align the guardrails
- Moderation of various regular meetings and operational workshops
- Participation in the lessons learned with the client to address dissatisfaction related to the internal project management (before my start! They are extremely satisfied with my work)
- Tools: Atlassian Suite (Confluence/JIRA), MIRO, Sharepoint; MS Office (PowerPoint, Excel, MS Project)
Brahim Ahmat
Last position:
Lead Developer at Blazor Web App at WAITS Software- und Prozessberatungsgesellschaft mbH
- Web development with Blazor
- Two-factor authentication for Blazor applications
- Uploading and downloading files
- Bug fixes for existing applications
- Programming interfaces
- Integration of third-party tools and technologies
- Creation of developer tests (unit tests)
Vladimir Maznicenko
Last position:
Developer at Financial services provider
- Support and further development of a framework for developing applications in a banking association: DynS/OSPE
- Migration of the framework to Java 11 and Java 17
- Java8, Java11 and Java17, Spring, Spring-Batch, Spring WebServices, Spring-Security, Spring-Data, JPA, Hibernate, OpenSource libraries etc.
- XML, JAXB, JSON, REST and SOAP services, DB2, Oracle, WebSphere or Liberty AS, FreeMaker, Junit, mock libraries, JaCoCo, Maven, IntelliJ, Eclipse, GitHub, SVN, Jira
Peter Brungs
Last position:
Data Warehouse Consultant (Development and Analysis) at Atruvia AG
- Developed and enhanced ETL loading jobs with IBM DataStage and optimized SQL in an IBM DB2 environment as part of the Agree21 data migration
- Analyzed data quality and developed test procedures
- Created PowerShell scripts and documented GIT deployment processes
- Technologies: RedHat Linux, IBM DB2 with DBVisualizer, IBM InfoSphere DataStage 11.7, JIRA, TortoiseGIT, TortoiseSVN, PowerShell scripts
Andreas Kosubek
Last position:
Backend Developer at Univention GmbH
- Developed a SCIM-compliant Python interface to connect external systems
- Expanded and enhanced UCS modules in Python
- Extended and newly developed Helm charts for container orchestration in Kubernetes
- Maintained and further developed CI/CD pipelines in GitLab
- Implemented automated tests with Pytest and Playwright
'Nubus' is based on a microservice architecture, relies on open source technologies, and runs in Docker containers.
UCS is an IAM complete solution based on Debian, used as an alternative to Microsoft's Active Directory. The work was characterized by the close integration of infrastructure and application logic.
Pappu Prasad
Last position:
Senior Cloud Consultant (AWS Services and Consulting) at devoteam GmbH
- Developed automated ETL pipelines with AWS Glue and Athena to ensure consistent data quality and governance requirements
- Implemented validation, anonymization, and encryption measures for data in compliance with GDPR
- Optimized cloud costs by introducing FinOps practices and increased transparency for business units
- Monitored performance, performed root cause analyses, and ensured adherence to SLAs
- Supported data and solution architects in building scalable data models for ML and analytics scenarios
Bipin Pandey
Last position:
Core Officer - Scale 1 at Canara Bank
- Provided excellent customer service in a customer-facing role.
- Managed departments of CASA, deposits, credit/loans, and recovery.
- Engaged in banking product analysis, design, customization, testing, and implementation activities.
- Selected for the CBS upgradation project for testing new version of core banking software in 2019.
- Managed successful upgradation of corporate module Flexcube (FCC) of CBS software, dealing with limit creation, security/collateral creation, bank guarantees, letters of credit, corporate loans, export and import bills, forward contracts, and fund transfers (inward and outward).
- Performed PL/SQL development and manual testing (JIRA).
- Collaborated with IBM (system integrator) and Oracle team (vendor) for removal of bugs and onboarding new products/parameters.
- Handled integration of Export Data Processing and Monitoring System (EDPMS) and Import Data Processing and Monitoring System (IDPMS) with CBS package.
- Closely worked with BA&IS wing for generating various statutory and other reports related to Flexcube corporate module.
- Participated in core testing team for IT synergy project during amalgamation of Syndicate Bank into Canara Bank.
- Worked in head office under technology operations wing, handling FCC issues on an ongoing basis.
Vishali Thangalapally
Last position:
Senior Analyst at Accenture
- Facilitated data retrieval for first-assist applications through an interface that fetches content based on client input criteria and loads it into the database via batch processing.
Robert Meixner
Last position:
Air traffic tax German Customs Administration SOAP Webservices Client Requests at Team GmbH
In the citizens' and business customer portal of the Customs Administration, airlines submit applications for departures and landings every month
These applications are forwarded to the caseworkers via SOAP web service and, after review and processing, any queries or notifications are returned via SOAP web service
PL/SQL programming of SOAP webservices client requests for HTTP/XML message exchange between the BuG portal and the caseworkers
New creation and change requests for Forms and Reports 12 modules
Forms applications start and read SOAP webservice requests via PL/SQL packages, process them and send Reports 12 documents to the airlines
Last position:
Rewe Digital
- Creation of Spring Boot integration tests
- Creation of JUnit tests for the coupon system
- Creation of component tests for Kafka topics
- Creation of CI/CD pipeline scripts
- Creation of UI tests with Playwright
- Creation of UI tests with Cypress
- Review of developer unit tests
- Planning the test architecture for integration tests
- Creation of the test automation concept
- Evaluation and creation of test reports
Discover over 15,000 top freelancers
Statistics of experts using PL/SQL
Aggregated from the professional profiles of matched freelancers.
Experience
22 years (Germany: 25 years)
Position duration
2.5 years (Germany: 3.2 years)
Positions per freelancer
20 (Germany: 17)
Top business areas
Information Technology, Quality Assurance, Product Development
Top industries
Information Technology, Banking and Finance, Transportation
Certification focus areas
Information Technology, Project Management, Operations
Bachelor's degree or higher
90% (Germany: 84%)
Master's degree or higher
50% (Germany: 53%)
Doctorate
10% (Germany: 7%)
Certifications per freelancer
3
Most common languages
German, English, French
Speak two or more languages
92% (Germany: 97%)
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 Cologne 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 Cologne using PL/SQL
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
Oracle database logic
PL/SQL is Oracle’s procedural language for working close to the data. It is used to build stored procedures, functions, packages, triggers, and batch jobs inside Oracle Database. Companies bring in PL/SQL experts when business rules must run reliably at the database layer.
Where it fits
- Transaction processing and validation
- Reporting and data preparation
- Integration jobs and interface logic
- Legacy Oracle system maintenance
- Performance-sensitive database features
PL/SQL is common in systems that need stable, server-side logic with tight control over data access. In Cologne, it often shows up in enterprise IT, logistics, insurance, and back-office systems that still run on Oracle.
Tooling and ecosystem
Strong specialists work with Oracle SQL, PL/SQL packages, views, cursors, exception handling, and refactoring tools in Oracle SQL Developer or similar clients. They also understand Oracle features around jobs, indexes, locking, and execution plans. Good work connects database logic with clean release and test routines.
When to bring in help
- A package is hard to extend safely
- A trigger causes side effects or errors
- Queries are slow under real load
- Older code needs cleanup before a change
- A migration touches core database logic
Freelance support is useful when teams need fast diagnosis, short-term delivery, or extra depth for Oracle-heavy work. Remote collaboration works well for analysis, code review, and tuning; on-site time in Cologne can help when stakeholders need close coordination.
What strong experts do
Good PL/SQL professionals write readable code, keep business rules consistent, and avoid hidden coupling between database objects. They test edge cases, handle exceptions clearly, and know when logic belongs in SQL, PL/SQL, or the application layer. They also document dependencies so future changes stay manageable.
What companies usually expect
A strong PL/SQL specialist can review an existing Oracle code base, fix defects, add new procedures, and explain trade-offs in plain language. They should also understand performance, deployment risk, and how changes affect upstream and downstream systems. For Cologne teams, clear communication in English is often enough, while German can help in local workshops and handovers.
Frequently asked questions
Before you brief your next project: the most common questions about PL/SQL.
PL/SQL is used to run procedural logic close to Oracle data. Companies rely on it for stored procedures, functions, packages, triggers, validation, and batch processing that must stay consistent inside the database.
PL/SQL adds variables, loops, condition handling, and modular code on top of SQL. Plain SQL is best for set-based queries and data changes, while PL/SQL is better when the logic needs branching, reuse, or controlled exception handling.
A PL/SQL expert is the right choice when the main risk is in stored logic, packages, triggers, or performance inside the database layer. If the work is mostly schema design or Oracle administration, a broader Oracle specialist may be enough.
A strong PL/SQL specialist should also know Oracle SQL, execution plans, indexing, transaction behavior, and basic data modeling. Skills in testing, refactoring, and integration with application code are also important for clean delivery.
PL/SQL work can be simple or highly sensitive, so the need depends on the code base. Small fixes may need only focused support, while package redesign, performance tuning, or migration work usually calls for deeper Oracle database experience.
Yes, most PL/SQL tasks can be done remotely because the work centers on code, database objects, and query analysis. On-site time in Cologne is useful when teams need workshops, access discussions, or handover sessions with business stakeholders.
A good PL/SQL professional can explain what the code does, why a change is safe, and how it affects performance. Look for clear comments on transaction handling, edge cases, testing approach, and how they reduce risk in the Oracle Database.
PL/SQL is still relevant wherever Oracle Database remains the core system and business rules belong near the data. It is especially useful for stable enterprise systems, data-heavy processes, and applications that need tight control over consistency and performance.
The average hourly rate of freelancers in Cologne, Germany who have used PL/SQL in their recent projects is 94 €, which corresponds to a daily rate of about 754 € based on an 8-hour working day.
Of the freelancers in Cologne, Germany who have used PL/SQL in their recent projects, 90% hold at least a Bachelor's degree, 50% hold at least a Master's degree, and 10% hold a doctorate.
On average, freelancers in Cologne, Germany who have used PL/SQL in their recent projects have 22 years of professional experience, with a single engagement typically lasting around 2.5 years.
The most common languages among freelancers in Cologne, Germany who have used PL/SQL in their recent projects are German (92%), English (92%), and French (25%).
The most common industries among freelancers in Cologne, Germany who have used PL/SQL in their recent projects are Information Technology (92%), Banking and Finance (83%), and Transportation (67%).
The most common business areas among freelancers in Cologne, Germany who have used PL/SQL in their recent projects are Information Technology (100%), Quality Assurance (83%), and Product Development (67%).
Main locations of FRATCH Experts, who have recently used PL/SQL
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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Hamburg 
Munich 
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Stuttgart 
Dusseldorf 
Essen 
Hanover 
Nuremberg Request a free demo
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Philipp Thomaschewski
FRATCH CEO
