Oracle SQL Developer Experts in Hamburg
matched in minutes from over 15,000 CVs with the power of AIHire experts who design SQL and PL/SQL solutions, tune Oracle databases and support data migration, reporting and integration work. FRATCH connects you with precise matches from vetted, available freelancers who can contribute quickly.
Meet FRATCH Experts in Hamburg, who have recently used Oracle SQL Developer
Vinod G.
Last position:
Freelancer: SAP MDG Consultant at Logistics service provider
- Support for one of the largest logistics service providers in handling ServiceNow tickets in the areas of SAP MDG, Business Partner (BP), customer and supplier master data
- Technical analysis and resolution of tickets through in-depth review of various database tables
- Creation and maintenance of accounting clerks in the system
- Deactivation of company codes using transports
- Carrying out mass changes with LSMW (Legacy System Migration Workbench)
Serkan U.
Last position:
Manager Finance, Risk & Regulatory Reporting at movisco AG
- Project leadership and management
- Implementing reporting solutions in banks
- Enhancing and optimizing reporting processes in bank finance and risk departments
- Consulting through all phases of regulatory requirement implementation, including requirements analysis, defining business requirements, testing, tool development, and audit-compliant documentation
- Supporting regulatory implementation projects
- Analyzing business requirements and implementing reports
- Acting as a liaison between business and IT
- Publishing on regulatory changes
- Training internal colleagues on regulatory topics
Walid H.
Last position:
Senior Tester within the IT & Digital Roadmap at VTG-Aktiengesellschaft
- Consulting, planning, and adapting (extension and rebuild) of the existing test framework to cover necessary test cases as part of quality assurance for initiative implementations
- Executing cross-team manual test cases during regular sprint cycles
- Setting up test automation
- Advising front-end and back-end development on quality assurance aspects
- Building a framework for end-to-end test cases
- Performing software quality assurance across various projects within a program
- Supporting the creation of test cases
- Coordinating within the team with all relevant stakeholders
Taher S.
Last position:
DevOps Engineer at Confidential
- Working with developers, security, and operations teams to align requirements
- Supporting product owners and development teams in using logging and monitoring solutions based on the Elastic Stack
- Developing and standardizing log schemas as well as defining practical standards for observability
- Designing and further developing logging architectures for complex, distributed multi-tenant environments
- Connecting application and infrastructure logs as well as security tools and metrics
- Optimizing data flows and modeling for analysis and reporting purposes
- Building automated infrastructures using Terraform/Terragrunt and Ansible
- Maintaining and further developing CI/CD pipelines in GitLab as well as automated development environments in Hetzner Robot
- Operating and automating Proxmox clusters including Ceph storage
- Setting up and operating Kubernetes (k3s) clusters on Fedora CoreOS including base services such as Vault, OpenLDAP, and HA Proxy
- Implementing security-critical infrastructures according to BSI baseline protection and securing existing systems
- Supporting the operation of solutions in cloud environments (including AWS)
- Working in agile teams using Scrum and Kanban
- Technologies/ applications: Elastic Stack (Elasticsearch, Logstash, Beats/Elastic Agent, Kibana), Terraform, Terragrunt, Ansible, GitLab CI/CD, GitOps, Proxmox, Proxmox Ceph, Kubernetes (k3s), OpenShift, Helm, Kustomize, Vault, OpenLDAP, HA Proxy, Hetzner Robot systems, AWS, Prometheus, Grafana, Syslog Linux/Windows, Docker, NGINX, Apache Security & Compliance (BSI baseline protection, SIEM/SOC)
Rolf G.
Last position:
Developer & Designer at Security authorities
- Migration of a case processing system with numerous interfaces to other systems from Spring and Activiti to a Java JEE application
- Further development into a cloud application
- Consulting, development, requirements analysis, specification and design
- Coordination with upstream and downstream systems
- Data modeling, programming and implementation
- Support with code reviews and ensuring clean code in the PL/SQL context
- Documentation in Confluence
- Troubleshooting PL/SQL applications including log analysis, session tracing and performance profiling
- Optimization and tuning measures in the PL/SQL environment
- Knowledge transfer and onboarding of new employees
- Use of Jira for task management, progress tracking and sprint planning
Mbah S.
Last position:
Software Tester for Banking Requirements at comdirect
- Responsibility for testing and quality assurance of application processes
- Creation and execution of test cases based on defined acceptance criteria
- Documentation of deviations and analysis, as well as initiation of necessary corrective actions
- Ensuring the flow of information within the team and with other specialist departments
- Maintenance and further development of test automation
- Adapting Selenium-based automation to every release and sprint change
- Extending test automation with new processes
- Performing security tests
- Identifying typical vulnerabilities (e.g. XSS, SQL injection, insecure headers) through automated tests in the CI/CD flow
- Use of technologies Selenium (including integration with security scanners such as OWASP ZAP), Unix/SQL environments and optionally Cypress, SAP, C#, Java, GitLab, Jira, Confluence, REST API, Postman, HP-ALM, SSI, Octane, WinSCP.
Peter N.
Last position:
Pilot testing AI tools & sabbatical for house renovation
- Pilot testing local AI environments to explore local AI use cases and cloud-based AI solutions
- Evaluation of AI tools and techniques
- Use of local AI tools with own data sovereignty
- Prompt engineering
- Creation of example environments for speech-to-text, text-to-speech, text-to-image, text-to-video, and image-to-video
Tools: Grok, Perplexity, ChatGPT, Elevenlabs, Github, Ollama, HuggingFace, Open WebUI, Faster Whisper, LibreTranslate, WSL, Docker Desktop, Shotcut, Audacity, Sound eXchange, Ffmpeg, Coqui TTS, Pinokio, Stable Diffusion Web UI, ComfyUI, OWL, Void Editor
Adrian H.
Last position:
Interim Consultant for Oracle Database Migrations to the AWS Cloud at Bank Deutsches Kraftfahrzeuggewerbe GmbH
- Migration of Oracle databases from on-premise to the AWS Cloud
- Support for technical Oracle solutions and cloud database infrastructures (IaaS and PaaS) RDS vs. EC2, sizing for performance
- Creation and maintenance of DR/HA (Disaster Recovery/High Availability) and backup and recovery policies and procedures (multi-region backup)
- Support for Oracle license selection, Enterprise → Standard migration
- Monitoring database instances
- Implementation and maintenance of database security (wallet, SSL)
- Patch management and version control
- Automated installation and configuration of Oracle databases using Terraform and Ansible
Bilal O.
Last position:
Test Analyst / Test Engineer at von der Qualidence Consultancy GmbH
- Manual acceptance testing of web and Swing clients as well as mobile applications across different teams/products
- Requirements management, test analysis, and submission of review results
- Preparation and execution of smoke, regression, and user acceptance tests
- Test case design using test design techniques for user stories with acceptance criteria in XRay; import of Excel test sheets into Jira XRay
- Creation, preparation, and execution of API tests with Postman and documentation in Jira XRay
- Taking on greenfield projects for the acceptance of the web app
- Proactive collaboration with the team (developers, POs, and test manager)
- Acceptance of development and deployment of content elements on the web with TYPO3 CMS
- Tools used: Jira + XRay, Postman, Confluence, web & Swing applications, mobile app, BrowserStack, Figma, Robot Framework, Excel
Guido S.
Last position:
Freelancer at IT Consulting GS
Discover over 15,000 top freelancers
Statistics of experts using Oracle SQL Developer
Aggregated from the professional profiles of matched freelancers.
Experience
24 years (Germany: 22 years)
Position duration
2.6 years (Germany: 2.1 years)
Positions per freelancer
14 (Germany: 17)
Top business areas
Information Technology, Quality Assurance, Project Management
Top industries
Information Technology, Banking and Finance, Transportation
Certification focus areas
Project Management, Information Technology, Quality Assurance
Bachelor's degree or higher
100% (Germany: 90%)
Master's degree or higher
56% (Germany: 53%)
Doctorate
11% (Germany: 12%)
Certifications per freelancer
4 (Germany: 3)
Most common languages
German, English, Arabic
Speak two or more languages
90% (Germany: 95%)
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 Hamburg 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 Hamburg using Oracle SQL Developer
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.
Oracle SQL Developer 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 (90%)
- Banking and Finance (60%)
- Transportation (60%)
- Aerospace and Defense (50%)
- Insurance (50%)
- Government and Administration (50%)
- Retail (50%)
- Healthcare (40%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Oracle SQL Developer explained
Oracle SQL Developer is Oracle’s graphical environment for working with databases through SQL and PL/SQL. It supports query development, schema management, data modelling, debugging and database administration tasks. Professionals use it to build and maintain reliable solutions around Oracle Database.
Core project work
Oracle SQL Developer specialists contribute to a wide range of database initiatives:
- Create, review and optimise SQL queries
- Develop and debug PL/SQL procedures, packages and triggers
- Design tables, views, indexes and database schemas
- Prepare data migration, validation and reporting workflows
- Investigate slow statements and recurring database errors
Ecosystem and tooling
The work commonly connects Oracle SQL Developer with Oracle Database, PL/SQL, SQLcl, Data Pump and Oracle REST Data Services. Depending on the project, specialists also use Git, CI pipelines, JDBC, application servers and business intelligence tools. Knowledge of relational modelling, transactions, permissions and performance analysis is essential.
When companies need support
Companies often bring in freelance expertise during database modernisation, application separation, migration or reporting projects. Short-term support can also help when internal teams face complex query issues, undocumented PL/SQL or a demanding release. In Hamburg, remote collaboration is common, while workshops with local teams may benefit from on-site availability and clear German or English communication.
What strong specialists deliver
Strong Oracle SQL Developer professionals make database work understandable and testable. They clarify business rules before changing schemas or queries, use execution plans to validate performance decisions and document dependencies across procedures and applications. They also distinguish a quick workaround from a maintainable database solution.
How to assess expertise
Ask for examples of comparable Oracle environments, database changes and performance investigations rather than judging tool familiarity alone. A capable specialist can explain why a query behaves as it does, how a migration will be validated and which risks affect availability or data quality. Practical testing, precise documentation and careful handling of production access are useful quality signals.
Frequently asked questions
Questions about Oracle SQL Developer? Start with the answers below.
Oracle SQL Developer is used to connect to Oracle databases, write and test SQL, develop PL/SQL and inspect database objects. It also supports debugging, schema management, data movement and performance investigation.
Oracle SQL Developer is a desktop environment with broad support for SQL, PL/SQL and Oracle database tasks. SQL Developer Web provides browser-based access, while tools such as DataGrip or SQL Server Management Studio may be better suited to different database ecosystems.
A strong Oracle SQL Developer specialist usually also understands Oracle Database architecture, PL/SQL, relational data modelling, indexing and execution plans. Experience with Git, migration utilities, REST integration or application connectivity can be important for wider delivery work.
The right Oracle SQL Developer experience depends on the risk and scope of the work. Query changes and reporting may need focused database knowledge, while migrations, performance remediation or production-critical PL/SQL require a specialist who can assess dependencies and recovery plans.
Oracle SQL Developer work is often suitable for remote collaboration when secure database access, documentation and communication routines are available. On-site sessions in Hamburg can still help with discovery workshops, access constraints and close coordination with local business or technology teams.
Ask the Oracle SQL Developer professional to explain execution plans, transaction behaviour, deployment risks and validation steps in plain language. Review examples of documented database changes and look for careful testing, clear assumptions and respect for production safeguards.
Oracle SQL Developer provides tools for many database tasks, but it does not replace broad Oracle Database administration knowledge. Backup and recovery, high availability, security, capacity planning and production operations may require additional specialist skills.
An Oracle SQL Developer freelancer may deliver optimised queries, PL/SQL packages, schema changes, migration scripts, data quality checks and technical documentation. Depending on the assignment, they can also provide test cases, deployment guidance and findings from a performance review.
The average hourly rate of freelancers in Hamburg, Germany who have used Oracle SQL Developer in their recent projects is 97 €, which corresponds to a daily rate of about 774 € based on an 8-hour working day.
Of the freelancers in Hamburg, Germany who have used Oracle SQL Developer in their recent projects, 100% hold at least a Bachelor's degree, 56% hold at least a Master's degree, and 11% hold a doctorate.
On average, freelancers in Hamburg, Germany who have used Oracle SQL Developer in their recent projects have 24 years of professional experience, with a single engagement typically lasting around 2.6 years.
The most common languages among freelancers in Hamburg, Germany who have used Oracle SQL Developer in their recent projects are German (100%), English (90%), and Arabic (20%).
The most common industries among freelancers in Hamburg, Germany who have used Oracle SQL Developer in their recent projects are Information Technology (90%), Banking and Finance (60%), and Transportation (60%).
The most common business areas among freelancers in Hamburg, Germany who have used Oracle SQL Developer in their recent projects are Information Technology (100%), Quality Assurance (90%), and Project Management (80%).
Main locations of FRATCH Experts, who have recently used Oracle SQL Developer
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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Munich 
Cologne 
Frankfurt Request a free demo
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