Oracle Database Experts in Hanover
to strengthen critical data systems with vetted, available specialists matched in minutesHire experts who design resilient data models, tune SQL and PL/SQL, and manage Oracle Cloud or on-premise environments. FRATCH uses precise AI matching to connect you with vetted, available freelancers quickly.
Meet FRATCH Experts in Hanover, who have recently used Oracle Database
Priyanka S.
Last position:
Business Consultant (Software Engineering) at Boehringer Ingelheim
- Developed cloud-native enterprise applications on SAP Business Technology Platform using Node.js, SAP UI5, and RESTful APIs, delivering solutions across training management, procurement, employee information, and logistics domains
- Served as the primary developer for the maintenance, enhancement, and production support of three enterprise applications, delivering new features, resolving production issues, and coordinating releases with business stakeholders
- Experienced in leveraging AI-assisted development tools such as Microsoft Copilot to accelerate feature development, generate code, prototype solutions, and support application migration and modernization
- Designed backend services, domain models, and SAP Fiori/UI5 interfaces, implementing business workflows, role-based access control, validations, scheduling, reporting, and data import/export capabilities
- Designed and integrated enterprise services with SAP SuccessFactors, SailPoint, ERP systems, and external Learning Management APIs, including automated synchronization for 11,000+ user data
- Designed and implemented AMQP-based event-driven services processing up to 500 RFID parcel scan events per day for a logistics application
- Managed deployments and application operations using CI/CD pipelines, SAP Solution Manager, SAP BTP Cockpit, Kibana, and cloud monitoring tools, performing root-cause analysis and resolving production incidents
- Managed application dependencies by resolving npm package version conflicts and remediating critical and high-severity security vulnerabilities, ensuring production compliance and application stability
- Collaborated with architects, business users, SAP governance teams, and distributed Agile teams throughout technical design, code reviews, sprint planning, documentation, and software delivery
Michael S.
Last position:
Data Scientist at CompuGroup Medical Deutschland AG, docmetric GmbH
Development of AI-based and classical models for analyzing medical and patient data, including medication analyses, diagnosis analyses, forecasts, procedure analyses, dosage analyses, comorbidity analyses, prescription analyses, patient potential analyses, and referral profile analyses. Analyses in the area of Real World Evidence.
- Gathering customer requirements
- Planning the subproject
- Designing and defining KPIs
- Designing and developing models and visualizations of the results using customer dashboards
- Developing and implementing DWH adjustments
- Deriving recommendations for action
Methods, technologies: Simulation, Artificial Intelligence, Python, R, SQL, Microsoft Power BI, Amazon Web Services, Elasticsearch, PostgreSQL, Databricks, Multivariate Statistics
Shweta S.
Last position:
Java Developer (Working Student to Intern) at Nord LB
- Took ownership of the full development lifecycle for various features, from design through coding, debugging, and production deployment, ensuring compliance with banking-grade reliability standards.
- Optimized SQL queries, reducing data-processing time by up to 50%, especially for large datasets handled.
- Developed and maintained automated tests using JUnit and Mockito.
- Utilized GitHub Copilot as an AI-assisted development tool to accelerate code generation, improve code quality, and increase development efficiency within the team.
- Resolved 90% of assigned production issues independently, often under tight deadlines, contributing to uninterrupted system availability.
Dennis S.
Last position:
Lead Full Stack at Self-employed
- Billing software for the second-highest security authority of the Federal Republic of Germany
- Passed security clearance level 2
- Frontend and backend development
- Consulting on the introduction, design, implementation, and development of technical components
- Code reviews, component testing, module testing, group module testing
- Implementation of UI/UX design
- Used technologies: HTML, CSS/SCSS, JavaScript, Node.js, Vue 3, PrimeVue, Webpack, Vuex, Momentum, Jest, NPM, Lodash, Java 17, Spring Boot, Lombok, GraphQL, JUnit, Maven, Keycloak, Python, Docker, CI/CD, Kubernetes, Oracle SQL, Postman, Storybook, Microservices, Monorepo, Jira, Confluence, Scrum, GitLab, AWS, IntelliJ, Visual Studio Code, Neovim, XLSX, responsive Webdesign, BITV 2.0 (U.S. Section 508) / WCAG 2.2
Willi Z.
Last position:
Data Analyst
- Analysis of process data
- Data preparation with SQL
- Development of reports & dashboards in Celonis
Martin S.
Last position:
MS Fabric Certification
MS Fabric certification with creation of pipelines and notebooks in Fabric using data from Azure, Azure Repos, Azure Boards, and GitHub. Data ingestion via OneLake Explorer, direct IP connection, and API (REST) are the main topics
Yenal Y.
Last position:
Shiny R Development at RadixITS Gbr
- Implementation and mapping of regulatory requirements (CSRD, ESRS) in Shiny dashboards and backend functions
- Design and development of data-driven modules in Shiny incl. ESG metrics and reporting templates
- Integration of data sources (SQL, SAP HANA, APIs, CSV/Excel) via DBI, odbc, httr and readr
- Creation of interactive visualizations with plotly, highcharter and DT (DataTables)
Jürgen W.
Last position:
IT Project Manager at Daimler Financial Services
- Implementation of a financing and leasing system for Market NL (Miles / Miles MMP) from supplier Sofico
Torsten G.
Last position:
Data Vault with Informatica on Oracle at SEFE
- Data Vault modeling and performance improvements in Oracle.
- Requirements process with model-driven Data Vault automation.
- Preparation of business requirements for the price database in the gas and electricity market.
- Sales performance based on Salesforce CRM.
- Tasks: Concept and development.
- Tools used: Informatica, Oracle, DBT, Docker, DataOps, Airflow Workflow, Python Ingestion, Gitlab CI.
Friedhelm M.
Last position:
Project at Deutsche Gesetzliche Unfallversicherung
- Collaborated on HL7 FHIR profiling and validation
- Created CodableConcepts (code/value systems), extensions and profiles like Composition and Bundle
- Extensive instance creation and validation
- Used Simplifier.net, Forge and the FHIR Java Validator
Martin Z.
Last position:
Consulting, Design and Development at ivv GmbH
- Design, development and maintenance of a web application as a policy management system based on a JEE backend and a Vaadin-based UI
- Design and development of interfaces
- Integration of databases
- Design and development of unit and integration tests
- Conceptual coordination with the client
- Technologies and methods: JEE, Vaadin, EJB, Innovator, Hibernate, REST, JMS, SQL, MQ, Maven, Selenium, Arquillian, Mockito, JUnit, Log4j, OOA, OOD, Scrum, Kanban, JavaScript, HTML, CSS, Jenkins, Jenkins Pipelines, Git, GitLab, Subversion, Jira, Confluence, DB2, WebLogic
Maximilian M.
Last position:
Test Data Creation and Management at statutory accident insurance
- Provision of cross-system synthetic test data for test automation for insured persons, companies and external partners in coordination with specialist departments and stakeholders, taking requirements and test cases into account
- Synthesis of test data with regard to data protection and data security
Christian K.
Last position:
Service Catalog Manager at Deloitte team
- Worked in the IT infrastructure of the Deloitte team.
- Planned assignment as service catalog manager at an insurance company in Hanover.
Janus T.
Last position:
Senior Scrum Master, Agile Coach at DMK, Bremen, Germany
- Optimizing agile work using Scrum as the chosen framework
- Coaching teams and individual members to increase collaboration efficiency, improve team effectiveness and performance, and foster a culture of continuous improvement
- Promoting and supporting the use of agile methods with Scrum, including upholding Scrum values and team self-organization
- Preboarding the internal Scrum Master
Jens K.
Last position:
Freelancer at IT-P GmbH
- Supported the production rollout of the KVAI-Classic master data system
- Analyzed and fixed errors in PL/SQL-based interfaces on Oracle 19
- Designed fixes and enhancements for the service provider
Discover over 15,000 top freelancers
Statistics of experts using Oracle Database
Aggregated from the professional profiles of matched freelancers.
Experience
25 years (Germany: 23 years)
Position duration
3 years (Germany: 3.1 years)
Positions per freelancer
16 (Germany: 15)
Top business areas
Information Technology, Product Development, Business Intelligence
Top industries
Information Technology, Banking and Finance, Insurance
Certification focus areas
Information Technology, Business Intelligence, Quality Assurance
Bachelor's degree or higher
88%
Master's degree or higher
56% (Germany: 53%)
Doctorate
19% (Germany: 8%)
Certifications per freelancer
3
Most common languages
German, English, French
Speak two or more languages
100% (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 Hanover 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 Oracle Database rate benchmarks:
Explore rate insightsAverage rates of experts in Hanover using Oracle Database
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 Database 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 (100%)
- Banking and Finance (63%)
- Insurance (53%)
- Professional Services (53%)
- Automotive (47%)
- Healthcare (47%)
- Manufacturing (42%)
- Government and Administration (37%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Core role
Oracle Database is a relational database management system for storing, processing and protecting business data. Companies use it for transaction-heavy applications, financial records, supply chain operations, customer systems and enterprise reporting. Its SQL engine, security model and strong consistency support workloads where reliable data matters.
Enterprise workloads
Oracle Database commonly sits behind ERP, CRM, billing, logistics and manufacturing systems. It can support operational applications as well as analytics through partitioning, replication and carefully designed data flows.
- Design schemas for transactional applications
- Build reporting and data integration pipelines
- Modernize legacy Oracle estates
- Support high-availability business services
Ecosystem and tooling
The wider ecosystem includes PL/SQL, Oracle RAC, Data Guard, GoldenGate, RMAN and Oracle Enterprise Manager. Specialists may also work with Oracle Cloud Infrastructure, Autonomous Database, Exadata, Java applications, REST services and ETL tools. Strong SQL fundamentals remain central across on-premise and cloud deployments.
When expertise matters
Companies bring in freelance Oracle Database expertise during migrations, performance incidents, audits and major application changes. They may need help moving workloads to Oracle Cloud, separating reporting from production systems or replacing unsupported custom procedures. In Hanover, remote collaboration can suit many assignments, while on-site work may help with controlled cutovers and sensitive infrastructure.
- Slow queries remain unresolved after routine tuning
- A cloud migration lacks a safe rollback plan
- Backup and recovery procedures need validation
- Database changes must align with application releases
Practical capabilities
A capable professional can model data, review execution plans, tune indexes and write maintainable PL/SQL. They understand transactions, locking, statistics, backup recovery, patching and access controls. They should also communicate clearly with application, infrastructure and compliance teams, in English and, where needed, German for local collaboration.
Choosing a specialist
Look for evidence that the professional has handled a workload comparable to yours, not only completed routine administration. Ask how they investigate performance, test recovery and control production changes. A strong specialist explains trade-offs between Oracle Database options and alternatives such as PostgreSQL or Microsoft SQL Server, documents decisions and leaves the team with repeatable operating practices.
Frequently asked questions
Need clarity? These are the questions we hear most often about Oracle Database.
Oracle Database stores and processes structured business data for applications such as ERP, finance, logistics, manufacturing and customer management. Companies choose it when transaction integrity, security, availability and mature enterprise tooling are important.
Oracle Database is often weighed against PostgreSQL and Microsoft SQL Server for enterprise workloads. The decision depends on existing applications, licensing, cloud strategy, staff skills, performance needs and the value of Oracle-specific capabilities such as RAC, Data Guard or Exadata.
A strong Oracle Database specialist usually brings SQL, PL/SQL, data modeling, Linux, backup and recovery, security and performance tuning skills. Experience with Oracle Cloud Infrastructure, Java, ETL tools, monitoring and infrastructure automation can also be valuable.
The right level for Oracle Database work depends on risk and scope rather than a fixed tenure. A migration, recovery design or production performance incident needs a specialist who has handled similar systems, while schema changes or reporting work may suit a professional with a narrower focus.
Oracle Database assignments can often be handled remotely through secure access, clear change procedures and regular technical reviews. On-site collaboration in Hanover may still be useful for data-center work, controlled cutovers, access restrictions or workshops with local teams.
For an Oracle Database migration, a professional should provide an assessed target design, dependency map, tested migration method, validation checks and a rollback plan. Clear runbooks and handover documentation help the internal team operate the new environment safely.
Ask an Oracle Database professional to explain how they isolate a slow query, verify backup recovery and manage a risky production change. Good answers are specific, testable and connected to business impact rather than focused only on product terminology.
Oracle Database is the core database technology, while Oracle Cloud offers managed services and infrastructure for running related workloads. A specialist should explain which responsibilities remain with the company, including data design, access control, cost oversight, testing and recovery planning.
The average hourly rate of freelancers in Hanover, Germany who have used Oracle Database in their recent projects is 96 €, which corresponds to a daily rate of about 766 € based on an 8-hour working day.
Of the freelancers in Hanover, Germany who have used Oracle Database in their recent projects, 88% hold at least a Bachelor's degree, 56% hold at least a Master's degree, and 19% hold a doctorate.
On average, freelancers in Hanover, Germany who have used Oracle Database in their recent projects have 25 years of professional experience, with a single engagement typically lasting around 3 years.
The most common languages among freelancers in Hanover, Germany who have used Oracle Database in their recent projects are German (100%), English (100%), and French (32%).
The most common industries among freelancers in Hanover, Germany who have used Oracle Database in their recent projects are Information Technology (100%), Banking and Finance (63%), and Insurance (53%).
The most common business areas among freelancers in Hanover, Germany who have used Oracle Database in their recent projects are Information Technology (100%), Product Development (79%), and Business Intelligence (68%).
Main locations of FRATCH Experts, who have recently used Oracle Database
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 
Cologne 
Frankfurt 
Stuttgart 
Dusseldorf 
Leipzig 
Dortmund 
Essen 
Bremen 
Dresden 
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
