T-SQL Experts in Switzerland
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Meet FRATCH Experts in Switzerland, who have recently used T-SQL
Marco S.
Last position:
MS Power BI Developer at Bayern Facility Management GmbH
Power BI development and administration, training, consulting, data modeling, DAX development
MS Fabric, MS Power BI, DAX
Reinhold S.
Last position:
Senior Software Developer at Hitachi Energy
- Support and further development of the Leegoo Builder
- Handling ad hoc requests
- Definition of rules/attributes and their rules
- Optimizing and managing SQL queries
Mathias D.
Last position:
Independent contractor at Allianz-Technology
- Developed a large web application for second-pillar retirement insurance (Swiss BVG, Kollektivleben) with over 1000 web pages, using an in-house modeling language and Angular for the front end and back end
- Fixed bugs in the code generator and enhanced and re-engineered the application
- Built an automated testbed
- Implemented PDF document generation with XML and Thunderhead
- Resolved issues caused by the switch to Java 21
- Replaced middleware server for insurance base data (customers, contracts) using Java/Spring, REST, OpenAPI, Docker, Kubernetes, OpenShift, Azure CI/CD pipeline, Jenkins, and GitHub
Rainer S.
Last position:
Microsoft DAT207x Certificate at edX
- Earned the Microsoft DAT207x certificate on edX.
- Completion date: 21.01.2020.
Daniel L.
Last position:
SQL, .NET and VBA Developer at Postfinance AG
- For the internal MIS, which gathers data in a complex, comprehensive system landscape and loads it into a central database via ETL, existing processes and packages had to be maintained and new KPIs analyzed, specified, and implemented.
Udo W.
Last position:
Julius Bär
Application ownership and further development of test user management (TUM)
Areas of responsibility: Application ownership (Application Ownership / ITSO), application management, incident management, deployment / release management, requirements management, prioritization, further development, automation, and interface management
Technologies: SQL Server, Python, GitLab, UC4, Lieberman, Linux
Responsible for the operation and continuous development of a central application for managing more than 5.000 technical test users and their data.
Gathered and assessed business requirements, independently prioritized further development, and planned and coordinated implementation using agile methods and PI Planning, in close collaboration with the relevant business units and IT teams.
Expanded the central SQL Server database with additional information about test and real users, and integrated further applications through defined interfaces. The modular application used Python-based processing components, with execution and workflows controlled through UC4. This enabled data from different source systems to be automatically transferred, processed, and made available, as well as new test users to be created automatically.
Ensured reliable application operations and continuously optimized and automated existing processes.
Application ownership, modernization, and migration of incident management (TRANT)
Areas of responsibility: Application ownership (Application Ownership / ITSO), application management, incident management, deployment / release management, requirements management, software modernization, migration, interface integration, and quality assurance
Technologies: UC4, Jira, SQL Server, Oracle, Java, Python, Lieberman, Linux, Jai
Responsible for the operation and development of an application that automatically records, processes, and forwards technical incidents in various test environments.
Automated the creation of Jira incident tickets when UC4 workflows were blocked, including routing them to the relevant application managers.
Modernized the application by migrating from Java to Python, moving the database from Microsoft SQL Server to Oracle, and replacing the Jenkins scheduler with UC4.
Integrated the Jira API and used the bank's internal AI solution Jai to support code migration and subsequent validation. Independently and critically reviewed AI-generated results for business and technical accuracy.
Shift lead for operations control in test environments
Areas of responsibility: Monitoring various test systems
Technologies: UC4, TSO, HOST, Azure-Cloud
Responsible for monitoring and controlling automated processing workflows in various test environments, including systems running in the Azure-Cloud.
Monitored UC4 and HOST workflows and analyzed and handled incidents. When processing workflows were blocked, Jira tickets were automatically created through TRANT and assigned to the relevant application owners. In coordination with them, affected jobs were restarted or stopped as needed. HOST processes were also monitored and controlled through OPC.
A multi-shift operation was introduced to ensure stable and as continuous as possible testing.
Test data anonymization manager
Areas of responsibility: Planning/anonymizing/publishing production data for test systems
Technologies: UC4, Informatica (PowerCenter and IDMC)
To ensure test environments could run with real data, production databases were cloned regularly. Production data had to be untraceable in test environments. For this reason, the cloned databases were first anonymized with Informatica PowerCenter and later with Informatica IDMC. Critical tables and columns in the various databases (Oracle, SQL-Server, MongoDB) had to be identified and analyzed at the data level. Rules for handling critical data were agreed with the application owners.
Discover over 15,000 top freelancers
Statistics of experts using T-SQL
Aggregated from the professional profiles of matched freelancers.
Experience
28 years
Position duration
2 years
Positions per freelancer
20
Top business areas
Business Intelligence, Information Technology, Product Development
Top industries
Information Technology, Insurance, Banking and Finance
Certification focus areas
Information Technology, Business Intelligence, Human Resources
Bachelor's degree or higher
100%
Master's degree or higher
67%
Certifications per freelancer
5
Most common languages
German, English, Spanish
Speak two or more languages
100%
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 Switzerland 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.
Average rates of experts in Switzerland 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 29 Oct 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 (100%)
- Insurance (83%)
- Banking and Finance (67%)
- Manufacturing (67%)
- Energy (50%)
- Telecommunication (50%)
- Aerospace and Defense (33%)
- Automotive (33%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
T-SQL in practice
T-SQL, or Transact-SQL, is Microsoft SQL Server’s programming language for querying and managing relational data. It extends standard SQL with variables, control flow, error handling, transactions and programmable database objects. Companies use it to turn business rules into dependable data operations.
SQL Server ecosystem
T-SQL work sits inside the Microsoft data ecosystem. Strong professionals understand SQL Server, Azure SQL Database, Azure Synapse Analytics and SQL Server Management Studio, along with execution plans, indexing and database security. They may also work with Power BI, SQL Server Integration Services and SQL Server Reporting Services when data must reach analysts and operational teams.
- Write and refactor complex queries
- Design stored procedures, views and functions
- Tune indexes, joins and execution plans
- Support data loads and reporting workflows
Typical deliverables
T-SQL specialists create database schemas, stored procedures, triggers and views for transactional systems. They also deliver migration scripts, reconciliation routines, reporting queries and data quality checks. Their work can support finance platforms, logistics systems, manufacturing operations, healthcare records and enterprise applications running on SQL Server.
When expertise matters
Companies often bring in freelance T-SQL expertise during a SQL Server migration, a reporting redesign or a performance incident. Specialist support is valuable when queries have become difficult to maintain, blocking and deadlocks affect operations, or a data model no longer matches business processes. In Switzerland, remote collaboration is common, while regulated or operational environments may require planned on-site workshops.
- SQL Server performance remains difficult to diagnose
- Legacy procedures need safe modernization
- Reports return inconsistent or slow results
- A migration requires tested database scripts
Skills around T-SQL
The best professionals combine SQL language knowledge with relational modeling, transaction design and careful performance analysis. They can read execution plans, choose suitable indexes, handle concurrency and protect data through permissions and parameterized queries. Experience with C#, .NET applications, PowerShell, Git and automated database deployment can improve collaboration across a wider delivery team.
Assessing strong professionals
Look for specialists who explain why a query behaves as it does, not only those who can make it run. Ask for examples of tuning, migration planning, rollback design and production troubleshooting, while respecting confidentiality. A practical review should cover data modeling, edge cases, transaction safety and testable deployment scripts. Clear documentation and communication in the languages needed by the Swiss team matter as much as technical fluency.
Frequently asked questions
Key details about T-SQL, drawn from the questions we get asked most.
T-SQL is used to query and modify data in Microsoft SQL Server and related services. It also supports stored procedures, functions, triggers, transactions, validation routines and reporting logic.
Transact-SQL extends standard SQL with Microsoft-specific features such as variables, procedural control flow, error handling and advanced database programming objects. It is closely tied to SQL Server, while standard SQL is intended to be more portable across database systems.
A company should hire a T-SQL specialist when SQL Server performance, complex data rules or migration risk exceeds the team’s available capacity. Common triggers include slow queries, unreliable reports, difficult stored procedures and urgent production issues.
A strong T-SQL professional usually understands relational data modeling, indexing, execution plans, transactions and SQL Server security. Azure SQL, Power BI, SSIS, SSRS, .NET integration, Git and automated database deployment are also useful depending on the project.
The right T-SQL background depends on the scope and risk of the work. A contained query or reporting task may need focused SQL expertise, while migrations, high-volume systems and production tuning require proven experience with concurrency, recovery and controlled releases.
Yes, T-SQL work can often be delivered remotely through secure access, documented requirements and shared review processes. On-site sessions may still help with sensitive environments, stakeholder workshops or systems that cannot be accessed outside the company network.
Assess T-SQL quality through execution-plan reasoning, readable queries, safe transaction handling and tests for edge cases. Ask the professional to explain indexing choices, failure recovery, permissions and how changes would be deployed without damaging production data.
T-SQL remains a strong choice when an organization relies on SQL Server, Azure SQL or Microsoft reporting tools. PostgreSQL, MySQL and other systems may suit different architectures, but changing databases involves migration effort, compatibility checks and a review of existing procedures, integrations and operational skills.
The average hourly rate of freelancers in Switzerland who have used T-SQL in their recent projects is 102 €, which corresponds to a daily rate of about 818 € based on an 8-hour working day.
Of the freelancers in Switzerland who have used T-SQL in their recent projects, 100% hold at least a Bachelor's degree and 67% hold at least a Master's degree.
On average, freelancers in Switzerland who have used T-SQL in their recent projects have 28 years of professional experience, with a single engagement typically lasting around 2 years.
The most common languages among freelancers in Switzerland who have used T-SQL in their recent projects are German (100%), English (100%), and Spanish (50%).
The most common industries among freelancers in Switzerland who have used T-SQL in their recent projects are Information Technology (100%), Insurance (83%), and Banking and Finance (67%).
The most common business areas among freelancers in Switzerland who have used T-SQL in their recent projects are Business Intelligence (100%), Information Technology (100%), and Product Development (83%).
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.
Countries:
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