PL/SQL Experts in Cologne
, matched with vetted and available freelancers in minutesHire experts who design Oracle database logic, optimize SQL-heavy workloads and deliver stored procedures, packages and data integrations. FRATCH connects you with vetted, available freelancers through fast, precise matching.
Meet FRATCH Experts in Cologne, who have recently used PL/SQL
Burhan D.
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
Andreas K.
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.
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.
Sebastian H.
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)
Bipin P.
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.
Brahim A.
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 M.
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 B.
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
Pappu P.
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
Vishali T.
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 M.
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
René P.
Last position:
CIO at clics GmbH
- Software development
- Team management
- Project management
Discover over 15,000 top freelancers
Statistics of experts using PL/SQL
Aggregated from the professional profiles of matched freelancers.
Experience
23 years (Germany: 24 years)
Position duration
4 years (Germany: 3.2 years)
Positions per freelancer
18 (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, Human Resources
Bachelor's degree or higher
90% (Germany: 85%)
Master's degree or higher
50% (Germany: 53%)
Doctorate
10% (Germany: 6%)
Certifications per freelancer
4 (Germany: 3)
Most common languages
German, English, French
Speak two or more languages
92% (Germany: 97%)
Based on our profile pool as of 29 Oct 2026.
Daily rate distribution
The chart shows how the daily rates of experts in this technology in Cologne are distributed, based on recent contracts on our platform. Each bar covers a rate range — its height shows the share of experts charging 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 29 Oct 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
PL/SQL 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 (92%)
- Banking and Finance (77%)
- Transportation (62%)
- Telecommunication (62%)
- Government and Administration (54%)
- Insurance (46%)
- Manufacturing (46%)
- Automotive (38%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Oracle Database Logic
PL/SQL is Oracle Database’s procedural extension for SQL. It lets teams combine queries and data changes with variables, conditions, loops, exception handling and reusable program units. Companies use it to keep critical business rules close to the data and execute them consistently.
Core Deliverables
PL/SQL specialists create database logic that supports financial processing, order management, reporting and enterprise applications. Typical deliverables include:
- Stored procedures, functions and packages
- Triggers, cursors and scheduled jobs
- Data validation and transformation routines
- Migration scripts and reconciliation processes
- Interfaces between Oracle and business applications
Ecosystem And Tooling
Effective work with PL/SQL depends on more than writing procedural code. Specialists work with Oracle Database features, SQL performance analysis, transactions, indexing and execution plans. They may also use Oracle SQL Developer, SQL*Plus, Oracle Enterprise Manager, version control and automated deployment pipelines.
When Expertise Matters
Freelance expertise is useful when database logic has become difficult to maintain, releases are slowing down or production queries need careful optimization. It also helps during Oracle upgrades, ERP integrations, data migrations and the separation of legacy routines into clearer modules. In Cologne, specialists may support local teams on-site or collaborate remotely across distributed projects.
Connected Skills
Strong PL/SQL professionals understand the systems around the database. Relevant adjacent skills include relational data modeling, advanced SQL, Oracle performance tuning, ETL design, REST integration and scripting for deployment. Experience with Java, .NET, Oracle Forms, Oracle APEX or enterprise resource planning systems can be valuable when database logic connects directly to application workflows.
Signs Of Quality
Look for professionals who can explain transaction boundaries, exception behavior and performance trade-offs in plain language. Good specialists test edge cases, protect data integrity and document dependencies between tables, packages and applications. They review execution plans instead of guessing, isolate business rules from ad hoc scripts and leave maintainable code that another team can operate confidently.
Frequently asked questions
Before you brief your next project: the most common questions about PL/SQL.
PL/SQL is used to add procedural logic to Oracle Database applications. Companies use it for stored procedures, functions, triggers, validation, scheduled processing, reporting routines and data transformation.
PL/SQL extends SQL with variables, conditions, loops, exception handling and reusable program units. SQL describes data operations, while PL/SQL coordinates several operations and applies business rules within the Oracle database.
A strong PL/SQL freelancer should also understand advanced SQL, relational data modeling, indexing and Oracle performance analysis. Depending on the project, API integration, ETL, Java, .NET, Oracle APEX or Oracle Forms may also matter.
The required depth depends on the work. A small reporting routine may need solid SQL and PL/SQL fundamentals, while a migration, performance investigation or high-risk financial process calls for a professional who has handled transactions, dependencies, testing and production incidents.
PL/SQL work is often suitable for remote collaboration because database access, source control and review can be managed digitally. Cologne teams may still prefer occasional on-site sessions for architecture workshops, release planning or access to restricted systems, and German or English communication should be agreed upfront.
Bring in a PL/SQL specialist when database routines are slow, fragile or hard to change, or when an Oracle migration and integration carries operational risk. External expertise can also help a team establish testing, deployment and documentation practices without interrupting daily delivery.
Ask a PL/SQL professional to explain execution plans, transaction handling, exception paths and test coverage for a comparable task. Review whether the code is modular, readable and safe under realistic data volumes, and check that dependencies and rollback behavior are documented.
PL/SQL remains relevant wherever Oracle Database holds important business data and rules. Modern projects may expose those capabilities through APIs, services or application layers, but well-designed database procedures can still support consistency, controlled access and efficient data processing.
The average hourly rate of freelancers in Cologne, Germany who have used PL/SQL in their recent projects is 93 €, which corresponds to a daily rate of about 745 € 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 23 years of professional experience, with a single engagement typically lasting around 4 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 (23%).
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 (77%), and Transportation (62%).
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 (77%), and Product Development (69%).
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.
Berlin 
Hamburg 
Munich 
Frankfurt 
Stuttgart 
Dusseldorf 
Essen 
Hanover 
Nuremberg 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
