T-SQL Expert in Frankfurt
for reliable data systems, matched in minutes with vetted and available freelancersHire experts who design SQL Server databases, tune complex queries and build dependable reporting workflows with T-SQL, SSIS and Power BI. FRATCH matches you quickly and precisely with vetted, available freelancers who fit your project.
Meet FRATCH Experts in Frankfurt, who have recently used T-SQL
Justina K.
Last position:
Freelance Consultant for Change & Data Transformation at Freelance Fast Data Consulting
Project, Strategic Consulting – building the Data Strategy and Data Governance Policy for the German branch, client (private bank Julius Bär, headquarters Zurich), March 2026 – present
- Design and negotiation of the data strategy with key stakeholders, including obtaining board sign-off (strategic consulting) – in this context, regulatory advice on data regulations in the EU and specifically for Germany. The data strategy includes: Data Lifecycle Management: data capture, data storage, data usage, data retention policy, data quality incident management
- Definition of milestones and technical feasibility for implementing TOM for the data strategy, data quality checks, metrics, and a metadata inventory to ensure the bank’s compliance with DORA, BCBS239, and MaRisk requirements.
Core project data change, client: (ING Bank, Frankfurt am Main), March – December 2025
- Concept development and solution design for new end-to-end processes including technical interfaces
- Definition of synchronization logic and data flows between legacy and target systems (decommissioning of legacy systems)
- Analysis and validation of data models
- Stakeholder communication with product owners, feature engineers, UX designers, and operational teams for decision-making
- Analytics and impact assessments, e.g. to assess downstream effects and regulatory requirements
- Documentation and comments on technical and business requirements to support implementation in agile squads
Project digitalization of a user group, client: (ING Bank, Frankfurt am Main), as Interim Product Owner, Jan 2025 – present
- Co-shaping key decisions on data architecture and process logic in the context of historized data and user login functionality
- Development of business solution concepts for migration to the target system, including system integration and data flows
- Support with analytics and impact analyses, especially regarding the ability to provide information to law enforcement authorities
- Active coordination with stakeholders from different squads to support decision-making and ensure regulatory requirements are met
- Creation of test scenarios for operational teams and backend systems in the area of API management using Postman and Bruno.
Monika T.
Last position:
Senior ETL Lead at Takeda GmbH
- Led design, development, and deployment of data solutions supporting a major pharma acquisition for Takeda Pharmaceutical Company, delivering transparency reporting systems across Azure,Databricks (Python and Shell Scripting) platforms.
- Owned,Designed and developed scalable ELT pipelines to process Customer and Product data using Azure, complex SQL, Databricks, and shell scripting, enabling efficient data integration and processing across multiple sources including job orchestration and workflow automation.
- Implemented performance optimization techniques (query tuning, parallelism, workload optimization), improving system efficiency and processing time.
- Applied strong analytical and problem-solving skills to assess technical solutions and support business requirements for compliance and transparency reporting.
- Designed scalable data foundations suitable for downstream analytics and AI workloads.
- Led data quality initiatives by assessing multiple source data, defining quality metrics, and establishing processes for monitoring and continuous improvement.
Benedikt R.
Last position:
Power BI developer at Mechanical Engineering (SME 500 emp.)
- KPI dashboards for inventory and goods received quality control & testing ETL, dataset, dataflows and report development, complex DAX solutions
Data sources: Dataverse, RDB, Excel
Tools: ETL, data modeling, data flows, Power Query, M, Power BI, complex DAX
- Capacity: 25%
Umut G.
Last position:
Data Architect at BA Technology
I am an experienced data engineer specializing in end‑to‑end data integration, cloud DWH architectures, and high‑quality, governed data products.
I delivered following projects and engagements as a freelancer.
- Data Migration of CRM System for AL-FA Objekt Service Gmbh
- Microsoft Software Resales Partnership
I am looking for freelance roles like: Freelance Data Engineer Cloud Data Warehouse Architect Data Modeling & Architecture Consultant MDM & Data Governance Specialist BI & Analytics Developer
Technical Focus Areas
- Data Engineering & Integration: SQL Server/SSIS, Informatica PowerCenter/IDQ, Talend, Kafka, Azure Data Factory – Delta/CDC/ELT patterns, robust pipelines, monitoring/recovery, data lineage & impact analysis, medallion architecture Bronze/Silver/Gold layers
- DWH & Cloud: Azure SQL / Data Lake / Synapse, AWS Redshift/S3, on‑prem SQL/Oracle – scalable data marts with a strong cost/benefit focus.
- Data Modeling: Atomic (Inmon) and Dimensional (Kimball), Data Vault (Linstedt), Domain‑Driven Design, clear lineage & contracts.
- MDM & Governance: Informatica MDM, IBM MDM, stewardship processes, data quality rules, survivorship/XREF, catalog/glossary, SIF/BES/REST publication.
- Analytics/BI: Power BI, SSAS, Cognos – business‑ready, maintainable data products.
Dimitrij N.
Last position:
Logistics Designer / Network Designer at Deutsche Bahn Cargo
- Requirements analysis, design, and development of a product for freight logistics (dispatching, planning, timetable and network optimization)
- Documentation of technical focus areas and support with acceptance and integration testing
- DBMS-agnostic modeling and mathematical algorithms for optimization with solver integration (Gurobi, Cplex, Coin-OR)
- Implementation of service layer, automated testing, and integration with third-party systems
Lutz H.
Last position:
Developer for Oracle Forms, PL/SQL, Java at AIG Europe S.A.
- Development and implementation of backend components with PL/SQL and Oracle Forms 12c. Adaptation and further development of the policy administration system. Technical consulting in UI design with a focus on integrating existing Oracle Forms and the requirements of the BIPRO framework.
- The project takes place in the technical environment of BIPRO, SQL databases and Oracle Forms applications. The assigned work includes backend development and technical further development in the above project with the following tasks:
- Development and implementation of backend components with PL/SQL and Oracle Forms 12c to technically map the business processes and ensure a stable and efficient system architecture
- Adaptation and further development of the policy administration system to ensure system functionality in line with the requirements of the new broker communication program
- Analysis of the existing system to identify and avoid errors and technical problems during implementation, in order to enable a smooth transition to the new system
- Carrying out patching and further development of existing Oracle and Oracle Forms applications to ensure compatibility and security of the systems in use
- Technical consulting in UI design with a focus on integrating existing Oracle Forms and the requirements of the BIPRO framework.
Label: PL/SQL, Java, Oracle RDBMS and Oracle Forms
Peter V.
Last position:
IT Consultant at Evotec KG
- Operation and administration of Windows 2016 / 2019 servers and domains
- Infrastructure services (Active Directory, ADFS, AD Azure Connect, DHCP, DNS, Group Policies)
- Consulting, support and troubleshooting of customer systems
- Documentation and concept design in the area of MS Active Directory
- Updating operation, process and system documentation
- Ticket handling (remote analysis and resolution via incident, change and problem management)
- Technologies: Windows 2022, Active Directory, ADFS, AD Azure Connect, DHCP, DNS, GPO, VMware vSphere, CheckMK, Exchange 2019, PowerShell, Jira, Confluence, Office 365, Matrix42, NetApp, Ansible
Serkan K.
Last position:
Operation and Maintenance of Oracle Middleware Products at LBV - Landesamt für Besoldung und Versorgung Baden-Württemberg
- Patch management
- Support in database development
- Installation and upgrades of the following Oracle systems:
- Oracle Analytics Server (6.4)
- Oracle Enterprise Manager Fusion Middleware Control
- Oracle Data Integration Server
- Oracle BI Administration Tool
- Oracle WebLogic
Thomas F.
Last position:
Senior Fullstack Developer at DB InfraGO AG
- Frontend: new development in Angular
- Backend: new development in ASP.NET Web API
- Database: modeling, implementation, and operation based on Microsoft SQL Server
- Requirements management, design, and implementation
- Deployment, maintenance, operation
- Knowledge transfer to internal staff
- Agile development (SCRUM)
Petru K.
Last position:
Architect & Technical Team Lead & Senior Developer at Goetel GmbH
- Design, architecture & development/programming of ETL/ELT data pipelines, DWH, BI solution
- Technical project lead, POC – proof-of-concept creation
- Liaison between business units and technical teams
- Azure DevOps Boards & Jira
- Data modeling & data engineering – data warehouse & data mart
- Azure (Data Factory, Azure SQL, Azure DevOps CI/CD, Azure Data Lake V2, Business Central REST API, OData API, OAuth2 tokens)
- SharePoint lists & API for ADF, Firebird DB, Postgres DB, DB2
- Power BI (Power Query), DAX, Excel PBI add-on, GIS data
- Automated ETL process monitoring/logging, performance monitoring, error monitoring – capturing & resolution
- Index performance tuning & statistics monitoring, Transact-SQL
- Data security – MFA (multi-factor authentication) & OAuth2, MS Graph, Azure networks & firewalls, gateways, roles, user groups – with read/write permissions
- Sources – Vario Bill, Camunda, Radius, Geo Database, OTRS, PAST, MS Dynamics Business Central, Azure Blob Data Lake, SharePoint lists
Jihane T.
Last position:
Reporting and Business Intelligence Specialist at Union Investment
- Developing and implementing new reporting requirements based on Oracle DWH with various business intelligence systems (SAP Business Objects and Birt-Eclipse)
Discover over 15,000 top freelancers
Statistics of experts using T-SQL
Aggregated from the professional profiles of matched freelancers.
Experience
24 years (Germany: 23 years)
Position duration
2 years (Germany: 3 years)
Positions per freelancer
20 (Germany: 16)
Top business areas
Information Technology, Project Management, Business Intelligence
Top industries
Information Technology, Banking and Finance, Automotive
Certification focus areas
Information Technology, Business Intelligence, Project Management
Bachelor's degree or higher
80% (Germany: 84%)
Master's degree or higher
30% (Germany: 52%)
Certifications per freelancer
4 (Germany: 3)
Most common languages
German, English, Russian
Speak two or more languages
91% (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 Frankfurt 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 Frankfurt using T-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.
T-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 (91%)
- Banking and Finance (73%)
- Automotive (64%)
- Education (55%)
- Transportation (55%)
- Manufacturing (55%)
- Telecommunication (55%)
- Healthcare (45%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
What T-SQL is
T-SQL, short for Transact-SQL, is Microsoft’s extension of SQL for working with SQL Server and Azure SQL. It adds procedural logic, variables, error handling, transactions and programmable database objects to standard SQL. Companies use it to store, transform and retrieve operational data reliably.
Where it is used
T-SQL supports the data layer of business applications, reporting systems and integration workflows. It is common in finance, manufacturing, logistics, healthcare and public services where structured records and controlled transactions matter.
- Build stored procedures for application workflows
- Create views, functions and triggers for reusable data logic
- Prepare datasets for reports and operational dashboards
- Migrate workloads to SQL Server or Azure SQL
Ecosystem and tooling
Strong T-SQL specialists usually work across the Microsoft data ecosystem. Their toolkit may include SQL Server Management Studio, Azure Data Studio, SQL Server Agent, Integration Services and Analysis Services. They also connect database work with .NET applications, Power BI, data warehouses and source-control workflows.
When companies need expertise
Freelance expertise is useful when a database has become slow, difficult to change or risky to operate. It also helps during migrations, reporting projects, ERP integrations and major application releases.
- Query plans reveal expensive scans or joins
- Blocking, deadlocks or failed jobs disrupt operations
- Reports depend on inconsistent business logic
- A legacy SQL Server estate needs a clear migration path
What strong professionals deliver
Capable T-SQL professionals start with data models, workload patterns and business rules rather than rewriting queries blindly. They improve indexing, statistics, execution plans and transaction design while protecting correctness. Clear documentation, repeatable deployments, monitoring and rollback plans make their work easier to maintain.
They should also explain trade-offs in plain language. A good specialist can distinguish a query problem from an application, infrastructure or data-quality problem and can work safely with production access.
Working with a freelancer
A project benefits from a defined scope, representative queries, schema documentation and access to relevant execution plans or sample data. Remote collaboration works well for reviews, tuning and delivery when secure access and clear communication are in place. Frankfurt companies may also choose on-site workshops for complex system discovery, while English is common and German can matter for local stakeholders.
Before engagement, agree on deliverables such as rewritten procedures, index recommendations, migration scripts, test results or operational runbooks. Review how the specialist measures performance, handles sensitive data and transfers knowledge to the internal team.
Frequently asked questions
The facts hiring teams ask for most often when it comes to T-SQL.
T-SQL is used to query and modify data in Microsoft SQL Server and Azure SQL. It also supports stored procedures, functions, transactions, error handling and database automation for business applications and reporting.
Transact-SQL extends standard SQL with Microsoft-specific procedural features such as variables, control flow, temporary tables and structured error handling. It is tailored to SQL Server and Azure SQL, while standard SQL is intended to be more portable across database systems.
A T-SQL specialist can help when queries are slow, stored procedures are difficult to maintain, or reporting logic is inconsistent. Freelance support is also useful for SQL Server migrations, database integration and production performance investigations.
A strong T-SQL professional often works with SQL Server administration concepts, indexing, execution plans and transaction behavior. Experience with SSIS, Power BI, Azure SQL, data warehousing, .NET integration or source control can be valuable depending on the project.
The right level depends on the risk and scope of the work. A focused query review may need a specialist familiar with performance tuning, while a migration or redesign calls for proven experience with data modeling, deployment, testing and production recovery.
T-SQL work is often suitable for remote collaboration because specialists can review schemas, queries and execution plans through controlled access. Frankfurt companies may prefer on-site workshops for discovery or stakeholder sessions, while secure tooling and clear documentation support remote delivery.
T-SQL is a strong fit when an organization already relies on SQL Server, Azure services, Microsoft reporting tools or related enterprise applications. PostgreSQL and other systems may offer different portability, extension or licensing advantages, so the decision should consider workload behavior, integrations, operating model and migration effort.
Ask a T-SQL expert to explain the data model, execution plan, indexing choices and transaction risks in terms your team can verify. Quality work includes repeatable tests, safe deployment steps, measurable acceptance criteria, clear documentation and attention to security and data correctness.
The average hourly rate of freelancers in Frankfurt, Germany who have used T-SQL in their recent projects is 96 €, which corresponds to a daily rate of about 767 € based on an 8-hour working day.
Of the freelancers in Frankfurt, Germany who have used T-SQL in their recent projects, 80% hold at least a Bachelor's degree and 30% hold at least a Master's degree.
On average, freelancers in Frankfurt, Germany who have used T-SQL in their recent projects have 24 years of professional experience, with a single engagement typically lasting around 2 years.
The most common languages among freelancers in Frankfurt, Germany who have used T-SQL in their recent projects are German (100%), English (91%), and Russian (27%).
The most common industries among freelancers in Frankfurt, Germany who have used T-SQL in their recent projects are Information Technology (91%), Banking and Finance (73%), and Automotive (64%).
The most common business areas among freelancers in Frankfurt, Germany who have used T-SQL in their recent projects are Information Technology (100%), Project Management (100%), and Business Intelligence (82%).
Main locations of FRATCH Experts, who have recently used T-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 Cologne 
Frankfurt Stuttgart Dusseldorf Leipzig Dortmund Essen Bremen Dresden Hanover Nuremberg 
Munich 
Cologne 
Dusseldorf Countries:
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
