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SQuirreL SQL Experts in Germany

in minutes from over 15,000 CVs with vetted specialists and the power of AI.

Hire experts who use SQuirreL SQL Client to inspect schemas, run SQL across JDBC databases, and support day-to-day database work. They help with query testing, metadata review, and admin tasks, matched fast and precisely with vetted, available freelancers.

Meet FRATCH Experts in Germany, who have recently used SQuirreL SQL

Verified expert

Michael Müller

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IT Project Manager / Scrum Master / Product Owner / IT Manager

Rellingen
Michael Müller

Last position:

IT PROJECT MANAGER (MS Exchange) at Statutory Health Insurance on behalf of Randstad Digital Germany (formerly AUSY Technologies Germany)

Migration from Exchange 2016 to Exchange 2019 and Exchange Online, as well as the introduction of a backup solution and an archiving solution. The goal was a secure, compliant, and high-performance modernization of the email and archiving infrastructure.

Responsibilities as IT PROJECT MANAGER: Overall project management and operational control / Ensuring adherence to costs and resources / Ensuring achievement of project objectives / Ensuring compliance with regulatory requirements and compliance guidelines, including ISMS, ITIL, and data protection regulations / Preparing and delivering management reports for the project sponsors and project committee / Coordinating interdisciplinary teams from Exchange, network, data protection, and IT security / Planning and executing the system migration from Exchange 2016 to Exchange 2019 / Planning and executing the system migration from Exchange 2019 to Exchange Online / Planning and implementing a backup solution for Exchange Online / Coordinating an EU-wide tender for an archiving solution including market analysis with potential vendors / Planning and implementing an archiving solution for Exchange Online / Coordinating and preparing the necessary BAS notifications in the project context / Coordinating and aligning with stakeholders (e.g. business units, external service providers, and suppliers) for requirements definition and implementation

Technical environment: MS Exchange 2016, MS Exchange 2019, MS Exchange Online, MS Office, MS Planner, MS PowerPoint, MS Project, MS Teams

Verified expert

Bernhard Schmitz

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Agile Business Analyst and Requirements Engineer

Ingelheim am Rhein
Bernhard Schmitz

Last position:

Agile Business Analyst and Requirements Engineer at Deutsche Post DHL

  • Agile project "PEPSi annual vacation planning MVP Lite" (digitalization project).
  • Definition of state transitions for the JUP Lite functionality.
  • Creation of user stories for login/logout and registration.
  • Quality assurance of the business-side concept.
  • Preliminary analysis for the transformation from the old PersPlan to DigiPEP.
  • Tools used: Signavio, MS Office (Excel, Word, PowerPoint), Jira, Confluence, Mural, Miro, Conceptboard, MS Teams, Mattermost.
Verified expert

Stefan Marx

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Installation Portal Server and Content Management Integration

Köln
Stefan Marx

Last position:

Bundesrechtsanwaltskammer

  • Design, planning and execution of complex acceptance tests for a document exchange platform for the German justice authorities.
  • Validation of decrypted and certificate-based message exchange via web platform, mobile app, and Java API.
  • Documentation of test cases, execution steps, and test results.
  • Technologies: Windows 11/10, Ubuntu, iOS, Android, Bash for Windows, Java 17, IntelliJ, Git, Jira, Confluence, Citrix Server, xJustiz standard implementation, specific justice software.
Verified expert

Silvia Biedermann

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Consultant

Überlingen
Silvia Biedermann

Last position:

Business Consultant - Product Management Banking at Aareal Bank AG

  • Focus on EBICS optimization and further development of the customer’s internal EBICS application
  • Business and technical consulting for Aareal First Financial Solutions AG on products and applications of the EBICS standard in the areas of operations and further development, as well as project-related communication with external development partners and the product vendor to map the relevant optimizations on a technical level
  • In the role of business coordinator, consulting on content-related and regulatory requirements as well as technical prerequisites and needs, and consolidating these on a business level
  • Consulting on the use of EBICS formats
  • Review of the current EBICS standard for potential optimizations and further development
  • Analysis of the current state to identify further development potential and derive suitable recommendations for action, taking regulatory requirements into account
  • Carrying out EBICS tests during the project
  • Responsible on a business level for requirements management, and in this context capturing and documenting requirements for such tests
  • Design of a functional and long-term test management approach
  • Execution and evaluation of tests
  • Consulting on sustainable quality assurance and audits
  • Project languages: German and English
  • Tools/methods: MS Project, MS Office, MS Visio, TestRail, Confluence, Jira, Business Logics Bank Rechner, Business Logics test data generator, Business Logics banking tool, Business Logics test system, DBEAVER, Squirrel, Unix virtual machines, WinSCP, Kitty, PuTTY, various Aareal Bank products, online banking portal, Aareal Sign, core banking system, SAP Blue Eagle, SAP RE-FX, Aareon Wodis Sigma, Haufe Real Estate Wowinex, GAP Group Immotion, UTS Karthago, SAP IS-U/Waste, SIV kVASy, various EBICS clients
Verified expert

Christian Dröge

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Requirements Engineer

Usingen
Christian Dröge

Last position:

Requirements Engineer at Evangelisches Jugend- und Fürsorgewerk (EJF)

  • Document analysis
  • Preparation and visualization of results (Excel, PowerPoint)
  • Consulting and recommendation for requirements analysis and management
  • Presentation and handover
Verified expert

Andreas Schenk

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Project Management, Development and Test- (Defect-) Management

Offenbach
Andreas Schenk

Last position:

Project Management, Development and Test- (Defect-) Management at safarica.com

  • Creation and implementation of a multilingual, relational MariaDB database to reflect the requirements of a booking system designed for safaris in Africa
  • Testing the front- and backend functionality, registration of clients and suppliers, the editorial system and the payment workflow
  • Defect management and documentation via BugHerd
  • Implementation of an automatic internal deployment of deliveries provided by an external company via bash scripts
  • Coordination of external companies in the function of a project manager (Stakeholder Management)
Verified expert

Peter Brungs

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Data Warehouse Consultant (Development and Analysis)

Köln
Peter Brungs

Last position:

Data Warehouse Consultant (Development and Analysis) at Atruvia AG

  • Developed and enhanced ETL loading jobs with IBM DataStage and optimized SQL in an IBM DB2 environment as part of the Agree21 data migration
  • Analyzed data quality and developed test procedures
  • Created PowerShell scripts and documented GIT deployment processes
  • Technologies: RedHat Linux, IBM DB2 with DBVisualizer, IBM InfoSphere DataStage 11.7, JIRA, TortoiseGIT, TortoiseSVN, PowerShell scripts
Verified expert

Hans Lindeman

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Requirements Engineer

München
Hans Lindeman

Last position:

Requirements Engineer at REWE Systems GmbH

  • Gathering requirements from business units and stakeholders
  • Organizing and running workshops
  • Creating and supporting user stories (from refinement to rollout) and mapping
  • Facilitating Scrum ceremonies
  • Identifying and analyzing optimization potentials like the REWE Pick&Go app
  • Moderation and communication with service providers
  • Requirements engineering in connection with external systems
  • DWH/BI solution: loyalty reporting with MicroStrategy
  • ITIL (framework for IT service delivery)
  • Quality assurance (quality gates) based on ISTQB
Verified expert

Kathleen Janz

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Product Owner, Team Lead, Account Manager

Braunschweig
Kathleen Janz

Last position:

Product Owner, Team Lead, Account Manager at Evia Consulting GmbH & Evia Solutions GmbH

  • Product responsibility towards clients, point of contact and account manager
  • Leading and coordinating development projects carried out with and for these clients, in addition to product development. This included, for example, the technical migration of a purchased company's IT systems into our own systems.
  • Responsible for security and operational infrastructure; coordinating external companies handling related tasks.
  • Constant exchange with management to ensure alignment of product and company goals.
  • Creating product roadmaps and coordinating with software developers.
  • Requirements management and user story refinement.
  • Coordinating cross-team work. In addition to my own team, seven other teams worked in the immediate environment.
  • Interface management with point-of-sale systems in stores, webshop, and external providers.
  • Customer support by providing reports on voucher issuance and redemption, as well as business-relevant reporting for annual financial statements and reserves.
  • Participated in the rollout of a new webshop platform in the Netherlands, Belgium, Germany, and Italy, including integrating my products and implementing country-specific custom requirements.
  • Team lead: First point of contact for all matters related to software developers.
  • Over a period of 1.5 years, took on Scrum Master tasks: removing impediments, preparing and conducting retrospectives, facilitating all Scrum meetings.
  • Aligning team work to achieve sprint goals; principle "Outcome over output".
  • Restructuring a large team into two smaller Scrum teams.
  • Developing team identity, defining vision, mission, and purpose.
  • Planning, conducting, and facilitating all Scrum events (review, retrospective, planning).
  • Coordinating the takeover of data from third-party systems after company merger.
  • Implementing new reporting.
  • Early detection of fraud cases; rapid development of sustainable countermeasures in collaboration with software developers.
  • Drafting concepts for microservices in an environment of eight development teams; aligning services with business domains.
Verified expert

Atef Abdel-Rahman

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System, load, acceptance and performance testing and QA manager for banking systems

Braunschweig
Atef Abdel-Rahman

Last position:

System, load, acceptance and performance testing and QA manager for banking systems

  • Test concept, planning and execution
  • Coordination of the different test phases
  • Project planning within the team, design of the structure and test strategy
  • Coordination and review of test activity execution and deviation management
  • Derivation of test cases for newly developed features with respect to functional and non-functional requirements and subject matter
  • Participation in status meetings
  • Documentation of technical components
  • Description of the qualitative and quantitative goals of the test measures
  • Definition of testable acceptance criteria
  • Screening of new and existing customers for negative information
  • Evaluation of information and decision on whether a business relationship is still possible
  • Assessment of negative information regarding sanction or terror lists
  • Assessment of whether individuals have a criminal record or are politically exposed
  • Continuous Integration and quality assurance (QA)
  • Description of using various testing methods and approaches (static/dynamic tests, functional/non-functional tests, black-/white-box tests)
  • Execution of manual and automated tests
  • Fixing errors from the testing phases in applications/components
  • Integration of test management in the introduction, establishment and expansion of test automation
  • Creation of system test documentation
  • Reporting risks and issues to technical architects and project management
  • Definition of requirements for the test infrastructure
  • IT system environment: Windows, SAP, Perl, C, Git, Cloud, Oracle, JavaEE, C#, SOA, XML, JavaScript, HTML5, Angular, JBoss, UML, Linux, Jira, Robot Framework, TypeScript, Python, JMeter, Tosca, Selenium, DWH, AWS Cloud, Doors
Verified expert

Joachim Bleichert

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Oracle Consulting and Development

Munich
Joachim Bleichert

Last position:

Oracle Consulting and Development at Berufsgenossenschaft Nahrungsmittel & Gastgewerbe (BNG)

  • Development and consulting of various web applications for data preparation and distribution using Oracle databases and PL/SQL
  • Technologies: Oracle 19, Oracle PL/SQL, Oracle APEX
Verified expert

Matthias Scherer

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IBM InfoSphere DataStage Senior Consultant

Hallbergmoos
Matthias Scherer

Last position:

IBM InfoSphere DataStage Senior Consultant at KKH (Kaufmännische Krankenkasse Hannover)

  • Data migration from BVS to BITMARCK 21c|ng
  • Test case creation; test execution and result analysis of the ETL processes
  • Consulting on detailed planning and test execution
  • Job review
  • Development
  • Documentation
  • Error analysis & fixing / new development
  • System environment: Windows 10; IBM InfoSphere DataStage 11.7.x; IBM DB2 z/OS; IBM DB2 LUW; PL/SQL; SQL; DBeaver 25.x; MS Office 365; Atlassian JIRA
Verified expert

Max Lippe

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Test Analyst (manual testing) – Microsoft Dynamics 365 Business Central (Factoring)

Görlitz
Max Lippe

Last position:

Test Analyst (manual testing) – Microsoft Dynamics 365 Business Central (Factoring) at ABC Finanz Bank Köln

  • Planning, execution, and documentation of manual tests in the factoring module of Microsoft Dynamics 365 Business Central, supported by AI-based tools for structuring
  • Working in an agile project environment with two-week sprints, including sprint planning, review, and QA alignments
  • Implementing progressive and regression test scenarios to cover new and existing functionalities
  • Managing and tracking test cases and defects with TestRail and Jira (BAM tickets)
  • Test coverage of core factoring processes: contact management, contract card, debtors, limit processes, corporate associations; payments including posting sheets, posting logic, and comment fields; testing and configuring the accounts receivable/disbursement components including reporting; portal tests in the TAS system (login, user management, feedback functions)
  • Contributing to special modules and interfaces: in-house tiles, factoring dashboard, risk evaluation
  • Maintaining test status and planning retests (Passed / Blocked / Partially Passed) in close coordination with business units
  • Quality assurance during data migration, including validation, deviation analysis, and post-documentation
Verified expert

Alf Kern

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Application Support

Munich
Alf Kern

Last position:

Application Support at Netto Online Supermarkets

  • Application support for the e-commerce presence of the Netto Online Supermarket chain [link]
  • Webshop runs with PIM, ERP and Diva software - Microsoft Dynamics Business Central
  • ITIL incident, change and problem management
  • Diva components include ERP, CRM, OMS, WMS and POS
  • Receiving, handling and, if needed, forwarding user requests
  • Error analysis and support with problem solving
  • Monitoring/orchestration of the individual systems
  • Day-to-day collaboration with external service providers and development team
  • User management and second-level support activities
  • System logging/maintenance of external interfaces
  • Application administration with Jira and Confluence in QA and production environments
  • Technology: Windows Server 2008, Linux servers, MS SQL Server

Discover over 15,000 top freelancers

Statistics of experts using SQuirreL SQL

Aggregated from the professional profiles of matched freelancers.

Experience

28 years

Position duration

2 years

Positions per freelancer

20

Top business areas

Information Technology, Quality Assurance, Product Development

Top industries

Information Technology, Banking and Finance, Insurance

Certification focus areas

Project Management, Information Technology, Product Development

Bachelor's degree or higher

77%

Master's degree or higher

54%

Doctorate

8%

Certifications per freelancer

3

Most common languages

German, English, French

Speak two or more languages

100%

Based on our profile pool as of 30 Aug 2026.

Daily rate distribution

0 3 6 9 12
<€480 €480-​640 €640-​800 €800-​960 €960+

The chart shows how the daily rates of freelancers in this technology in Germany 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 Germany using SQuirreL SQL

Rates are based on recent contracts and do not include FRATCH margin.

800
600
400
200
Rate comparison chart
Daily rate avg. 709 €

The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.

800
600
400
200
Rate comparison chart
Median rate 680 €

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 30 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.

About the technology

SQL client for database work

SQuirreL SQL is a Java-based SQL client for browsing databases, running queries, and checking metadata. Teams use it to work with JDBC data sources across systems such as PostgreSQL, MySQL, Oracle, and DB2. It is often written as SQuirreL SQL Client or just SQuirreL.

What specialists do

  • Connect to multiple JDBC databases in one tool
  • Inspect tables, views, keys, and indexes
  • Run SQL, compare results, and save sessions
  • Use aliases, drivers, and plugins for repeat work

It is useful when teams need a clear view of live data without switching between heavy admin tools.

Where it fits

SQuirreL SQL is common in database analysis, support, and release work. It helps when experts need to verify stored data, test statements before deployment, or review production schemas with care. In Germany, it is often part of remote or hybrid work with internal IT teams and data-heavy companies.

Why companies bring in freelancers

Companies look for freelance specialists when a database task is urgent, the internal team lacks time, or legacy JDBC access needs a quick fix. Strong professionals can set up drivers, explain query behavior, and help teams read unfamiliar schemas. They are also useful during migrations, audits, and incident follow-up.

What strong specialists know

Good SQuirreL SQL professionals understand SQL itself, JDBC connectivity, and the structure of the target database. They work carefully with sessions, object browsers, result grids, and connection settings. They also know when SQuirreL SQL is the right tool and when a database-specific console is better.

Signs you need help

  • Your team cannot connect to a database through SQuirreL SQL
  • Queries behave differently across environments
  • You need someone to review schemas or data quickly
  • Driver setup, aliases, or plugins are causing problems

For companies, this usually means a short, focused engagement with a specialist who can get straight to the issue.

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Frequently asked questions

The facts hiring teams ask for most often when it comes to SQuirreL SQL.

SQuirreL SQL is used to connect to databases through JDBC, browse schema objects, and run SQL in a structured way. Teams use it to inspect data, test statements, and compare results across environments without relying on a database-specific console.

SQuirreL SQL is lighter and more focused on classic JDBC work than many modern database tools. Compared with DBeaver, it has a simpler interface and fewer built-in extras, so it suits teams that mainly need query work, object browsing, and connection management.

A strong SQuirreL SQL specialist should be comfortable with SQL, JDBC drivers, and the target database’s schema model. Familiarity with data troubleshooting, access control, and deployment checks is also useful because the tool is often part of support and validation work.

It depends on the task. Simple connection setup or query review may only need a specialist with solid SQuirreL SQL and SQL skills, while migration support or production troubleshooting calls for deeper database knowledge and careful working habits.

Yes, most SQuirreL SQL work can be done remotely if the specialist has secure access to the right database systems and drivers. In Germany, on-site work is usually only needed when local policies, network access, or sensitive environments require it.

Look for clear questions about your database, driver setup, and expected outcomes. A reliable SQuirreL SQL professional explains what they are checking, documents connection details, and can show how they verified the query or schema result.

SQuirreL SQL works with many JDBC-accessible databases, including PostgreSQL, MySQL, Oracle, DB2, and others. The exact fit depends on the driver and on how the target system exposes metadata and query results.

Yes, especially for teams that value a stable JDBC client for direct database inspection. SQuirreL SQL is still useful when the task is focused on query testing, schema review, or cross-database access rather than on broader analytics or visual database design.

The average hourly rate of freelancers in Germany who have used SQuirreL SQL in their recent projects is 89 €, which corresponds to a daily rate of about 709 € based on an 8-hour working day.

Of the freelancers in Germany who have used SQuirreL SQL in their recent projects, 77% hold at least a Bachelor's degree, 54% hold at least a Master's degree, and 8% hold a doctorate.

On average, freelancers in Germany who have used SQuirreL 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 Germany who have used SQuirreL SQL in their recent projects are German (100%), English (95%), and French (42%).

The most common industries among freelancers in Germany who have used SQuirreL SQL in their recent projects are Information Technology (95%), Banking and Finance (79%), and Insurance (53%).

The most common business areas among freelancers in Germany who have used SQuirreL SQL in their recent projects are Information Technology (95%), Quality Assurance (95%), and Product Development (84%).

Main locations of FRATCH Experts, who have recently used SQuirreL 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

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