
Oracle Database Experts in Hanover
for secure, reliable data systems with AI-powered matchingHire experts who design resilient Oracle Database environments, tune SQL and PL/SQL workloads, and support migrations, integrations and high-availability systems. FRATCH matches you quickly and precisely with vetted, available freelancers.
Meet FRATCH Experts in Hanover, who have recently used Oracle Database
Michael S.
Last position:
Data Analyst, Data Scientist at CompuGroup Medical Deutschland AG, docmetric GmbH
Development of AI and traditional models to analyze medical and patient data, including medication analyses, diagnosis analyses, forecasts, procedure analyses, dosage analyses, comorbidity analyses, prescription analyses, patient potential analyses, referral profile analyses, and prescription analyses. Analyses in the field of Real World Evidence.
Healthcare IT, pharmaceutical industry
Tasks, responsibilities:
- Gathering customer requirements
- Planning the subproject
- Designing and defining KPIs
- Designing and developing models and visualizations of results using customer dashboards
- Developing and implementing data warehouse adaptations
- Deriving recommendations for action
Methods, technologies:
- Simulation
- Artificial intelligence
- Python
- R
- SQL
- Microsoft Power BI
- Amazon Web Services
- Elasticsearch
- PostgreSQL
- Databricks
- Multivariate statistics
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
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 Hannover.
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.
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
Matthias V.
Last position:
Managing Partner at IT consulting firm
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
Reinhard M.
Last position:
Consultant at Infineon
- Preparation of data for creating masks for the manufacture of semiconductor chips.
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.
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
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
24 years (Germany: 23 years)

Position duration
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, Automotive

Certification focus areas
Information Technology, Business Intelligence, Quality Assurance
Bachelor's degree or higher
87% (Germany: 88%)
Master's degree or higher
53% (Germany: 54%)
Doctorate
20% (Germany: 7%)

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 29 Oct 2026.
Daily rate distribution
The chart shows how the daily rates of experts in this technology in Hanover 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.
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 29 Oct 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 (67%)
- Automotive (50%)
- Insurance (50%)
- Professional Services (50%)
- Healthcare (44%)
- Manufacturing (44%)
- Government and Administration (33%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Core technology
Oracle Database is a relational database management system for storing, protecting and querying business-critical data. It supports structured schemas, transactions, constraints, indexing and advanced security for applications that require consistency and controlled access. Companies use it for enterprise systems, financial records, supply chains, analytics and customer operations.
Enterprise workloads
Oracle Database is built for demanding workloads where availability, auditability and predictable performance matter. It commonly runs behind ERP, CRM, banking, insurance, manufacturing and public-sector applications. Specialists also work with Oracle RAC, Data Guard and multitenant architectures to support continuity, recovery and controlled growth.
Ecosystem and tooling
Strong Oracle professionals understand more than SQL syntax. Their toolkit may include PL/SQL, Oracle Enterprise Manager, RMAN, Data Pump, GoldenGate, APEX and performance views, alongside Linux, virtualization and cloud services. Useful adjacent skills include data modelling, ETL, backup design, identity management and application integration.
- Schema, index and partition design
- SQL and PL/SQL development
- Backup, recovery and replication planning
- Performance analysis and capacity tuning
When to hire specialists
Freelance expertise is valuable when an internal team faces a complex database change or a production risk. Companies bring in specialists for migrations, upgrades, incident recovery, consolidation, cloud adoption and performance remediation. In Hanover, remote collaboration can suit many Oracle projects, while on-site work may help with regulated operations, infrastructure changes or workshops with local teams.
Delivery and collaboration
A capable specialist starts by clarifying workload patterns, service levels, dependencies and operational constraints. They document assumptions, test changes safely and provide rollback plans rather than tuning production blindly. Clear runbooks, monitoring recommendations and knowledge transfer make the result maintainable after the engagement ends.
Quality signals
Look for evidence of hands-on work with the Oracle Database features your system actually uses, not only broad vendor knowledge. Strong professionals can explain execution plans, locking, statistics, recovery objectives and security controls in plain language. They connect technical choices to application behaviour and business risk, and they validate improvements with repeatable tests.
Frequently asked questions
Need clarity? These are the questions we hear most often about Oracle Database.
Oracle Database stores and processes structured information for enterprise applications. It is often used for financial transactions, ERP, supply chain, customer records, reporting and systems that require strong consistency, security and recovery controls.
Oracle Database is often selected for mature enterprise features, large operational workloads, deep tooling and high-availability options. PostgreSQL and Microsoft SQL Server can be strong alternatives, so the right choice depends on licensing, existing skills, application compatibility, cloud direction and operational requirements.
A strong Oracle Database specialist may also work with SQL, PL/SQL, Linux, data modelling, backup and recovery, replication, monitoring and ETL. Experience with application integration, cloud infrastructure and security is useful when the database is part of a larger business system.
The required depth depends on the risk and scope of the work. A schema change may need focused SQL and data-modelling expertise, while a migration, recovery design or RAC environment calls for proven production experience with Oracle Database operations and testing.
Oracle Database work is often suitable for remote collaboration when secure access, documentation and communication are in place. On-site sessions in Hanover can still be valuable for infrastructure changes, workshops, regulated environments or close coordination with teams responsible for connected systems.
Ask for examples that match your workload, such as query tuning, Data Guard, RMAN, PL/SQL or migration work. For Oracle Database, quality also shows in clear diagnosis, safe change plans, tested rollback steps, useful documentation and the ability to explain trade-offs to both technical and business stakeholders.
Oracle Database runs in on-premises data centres, private environments and public cloud services. A specialist should be able to compare deployment options, account for network and security constraints, and plan backup, monitoring, patching and recovery consistently across the chosen environment.
Freelancers working with Oracle Database may design schemas, write PL/SQL, tune SQL, investigate blocking, automate administration or plan migrations. They can also improve backup and recovery, configure replication, support upgrades and transfer operational knowledge to the permanent team.
The average hourly rate of freelancers in Hanover, Germany who have used Oracle Database in their recent projects is 95 €, which corresponds to a daily rate of about 757 € based on an 8-hour working day.
Of the freelancers in Hanover, Germany who have used Oracle Database in their recent projects, 87% hold at least a Bachelor's degree, 53% hold at least a Master's degree, and 20% hold a doctorate.
On average, freelancers in Hanover, Germany who have used Oracle Database in their recent projects have 24 years of professional experience, with a single engagement typically lasting around 3.1 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 (33%).
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 (67%), and Automotive (50%).
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 (78%), and Business Intelligence (67%).
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.
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