PL/SQL Experts in Cologne
to deliver reliable Oracle systems with fast, precise AI matchingHire experts who build stored procedures, optimize Oracle databases and connect enterprise applications with PL/SQL. FRATCH matches you quickly with vetted, available freelancers whose skills fit your project and working model.
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
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.
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.
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)
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)
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.
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: 7%)
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 19 Sep 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 19 Sep 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 Programming
PL/SQL is Oracle’s procedural extension for SQL. It combines data queries with variables, conditions, loops, exception handling and reusable program units inside the database. Companies use it to enforce business rules close to their data and to keep transaction-heavy systems consistent.
Business-Critical Workloads
PL/SQL supports the back end of banking, insurance, logistics, manufacturing and public-sector systems. It is common in financial processing, billing, reporting, inventory control and integration workflows where dependable data handling matters.
- Stored procedures and functions
- Packages, triggers and database jobs
- Batch processing and reconciliation
- Reporting and data validation
Tools and Ecosystem
Strong specialists work with Oracle Database, SQL*Plus, SQL Developer and Oracle Enterprise Manager. They understand packages, cursors, collections, views, indexes and transaction control, and can connect PL/SQL routines with Java, .NET, middleware, REST services or scheduled data pipelines.
When Extra Expertise Helps
Companies often bring in freelance expertise during Oracle migrations, performance investigations, modernization programmes or urgent maintenance work. Cologne teams may need local collaboration for workshops and releases, while remote specialists can support code reviews, tuning and delivery across time zones.
- Stabilizing slow or failing database routines
- Replacing fragile scripts with tested packages
- Migrating legacy Oracle workloads
- Documenting critical database logic
What Strong Specialists Deliver
Reliable PL/SQL work starts with clear transaction boundaries, readable package design and deliberate error handling. Strong professionals use execution plans, tracing and database statistics to investigate performance instead of changing code by guesswork. They also write tests for edge cases and protect data integrity during releases.
Choosing the Right Professional
Look for hands-on evidence with the Oracle version, workload and integration points your project uses. Ask how the specialist approaches locking, indexing, bulk operations, security and deployment across environments. For Cologne-based collaboration, clarify German or English communication, on-site expectations and access controls before work begins.
Frequently asked questions
Before you brief your next project: the most common questions about PL/SQL.
PL/SQL is used to implement business logic, data validation and transaction workflows inside Oracle Database. Companies rely on it for stored procedures, packages, triggers, batch jobs, reporting routines and integrations that need close access to structured data.
PL/SQL runs close to Oracle data, which can reduce unnecessary data movement and keep transactional rules centralized. Application-layer code may be easier to deploy across database vendors, so the right choice depends on portability, performance, ownership and the existing Oracle architecture.
A strong PL/SQL specialist usually also understands advanced SQL, Oracle Database administration concepts and performance tuning. Experience with Java, .NET, REST integrations, ETL tools, Linux scripting or CI/CD can be important when database routines are part of a wider enterprise system.
The required depth depends on the risk and scope of the work. A focused report or routine may need a specialist familiar with the relevant schema, while a migration, performance recovery or highly regulated transaction system calls for proven experience with Oracle internals, testing and controlled releases.
Yes, much PL/SQL work can be handled remotely through secure database access, version control, ticketing and structured reviews. On-site sessions in Cologne can still help with discovery, access setup, stakeholder workshops or sensitive release activities.
A PL/SQL freelancer can add focused capacity during a migration, production incident, backlog surge or specialist performance investigation. External expertise is also useful when internal teams need an independent review of database logic or a clear plan for modernizing legacy routines.
Ask a PL/SQL professional to explain how they measure query performance, handle exceptions, manage locks and test changes with production-like data. Reviewable packages, predictable deployment steps, clear documentation and evidence of safe rollback matter as much as code that appears to work.
PL/SQL remains relevant when applications depend on Oracle Database for complex transactions, data integrity and high-volume processing. New projects may combine it with services, APIs and cloud infrastructure rather than placing every business rule in the database, so architecture decisions should be made case by case.
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.
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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
