SQL Experts in Bremen
matched in minutes by AIHire experts who design relational data models, tune complex queries and connect SQL databases to business applications, reporting tools and cloud services. FRATCH matches you quickly with vetted, available freelancers whose skills fit your project.
Meet FRATCH Experts in Bremen, who have recently used SQL
Eric K.
Last position:
Digital roadside assistance platform at SABK
Vitalijs V.
Last position:
Mentor at EdSyl
- Mentored participants through structured learning paths and hands-on projects.
- Provided feedback and guidance on AI integration and product management best practices.
- Mentor teams on AI adoption, enterprise product strategy, and practical delivery choices.
Frank D.
Last position:
Project management, development and system integration for retrofit on a Uranus thermionic mass spectrometer at Forschungszentrum Jülich
- Development of a retrofit concept, including qualification measures
- Development, installation and commissioning of the required hardware and software
- Development of a safety concept
- Execution and documentation of in-house verifications / qualification
- Initiation and implementation of measures in case of non-conformities
- Execution of CE conformity assessment procedures and CE marking
Kasem R.
Last position:
AI Automation Data at hmmh AG
- Independently developed an AI-supported MVP to automate content processes
- Created and optimized content with a focus on SEO and quality
- Maintained web and product content in CMS/templates
- Used automation and AI solutions to create and optimize content
- Analyzed and continuously improved content
- Created and edited images with Photoshop
- Developed scripts in Python, HTML, CSS, JavaScript to process and optimize content data
Kersten S.
Last position:
SAP SD Consultant – ECC E-Invoicing France at Mechanical Engineering, France
The main goal of the project was to link the ECC system to the French e-invoicing network. This includes ensuring compliance with national e-invoicing regulations and achieving e-reporting readiness for the digital transfer of transaction data.
Standardization of order management processes to achieve the required data quality and consistency.
Ensuring correct VAT determination through targeted developments (customizing and, if necessary, ABAP) in the SAP SD module to comply with EU tax regulations.
Design and configuration of the down payment process (Down Payments) in the SAP ECC system.
Timo K.
Last position:
Senior Fullstack Developer
- Lead Developer / Tech Lead in a large banking group for a complete redevelopment of payment systems
- Rebuilding payment processing in stream processing
- Development and design of cross-border payment stream processing based on Kafka and Kafka Streams
- Development of different input formats for the business team using Drools rules to dynamically adjust validation rules
- Evaluation and comparison of different public cloud providers regarding the databases they offer
- Technologies & Tools: Java 21, Kotlin, Spring Boot, Kafka, Kubernetes, Azure, TDD, JEE, REST, Angular, Spark, Google Cloud, SCDF, PostgreSQL, Drools, Git, S3, MongoDB
Dimitri S.
Last position:
Fullstack Developer, Integrator at Generali Deutschland Versicherung AG
- Developing automated build and deployment processes for the exclusive front office systems
- Integrating the front office systems into the IT infrastructure
- Developing innovative, user-friendly sales software for financial advisors
- Ensuring quality and flexibility through automation and working with CI/CD
- Working according to DevOps principles
- Operating the software together as a team in the AWS cloud and Azure cloud
- Deploying software artifacts to testing and production environments
- Maintaining the test environments
- Performing error analysis and providing information for further root cause analysis
- Maintaining and supporting the build pipeline
- Supporting load testing
- Coordinating the batch execution schedule with batch automation
- Creating concepts to further develop the software packaging process
- Building and delivering components to partners
- Developing GitLab and Jenkins pipelines for building, deploying and integrating components
- Automating processes with Spring Boot applications with a GUI (Thymeleaf, Angular 19)
- Developing RESTful Spring Boot applications with Kotlin and Angular 19, JDBC and REST accesses, data exchange via SFTP, XML (JAXB)
- Designing components using Domain-Driven Design (DDD)
- Replacing cmd and bash scripts with Spring Boot applications with a GUI
- Replacing Java 8 applications with JSP by Spring Boot 3 applications (Thymeleaf, Angular)
- Implementing frontend and backend authentication via Keycloak
- Writing JUnit tests with Mockito
- Increasing code coverage for SonarQube analysis
Doncho P.
Last position:
AI Engineer / Data Scientist at Freelance
- Designed and implemented scalable data governance frameworks for healthcare, energy, and telecom enterprises.
- Architected data models in Azure Synapse & Power BI, enabling high-performance reporting and scalability.
- Led migration of legacy BI systems to cloud infrastructure, improving efficiency and resilience.
- Acted as a technical consultant, advising clients on architecture improvements and implementation strategies.
Nandini V.
Last position:
Senior Software Developer at Capgemini Technology Services Limited
- Designed and implemented secure backend services using Java, Spring Boot, and Hibernate, following microservice principles and RESTful standards.
- Implemented GraphQL-driven REST APIs to streamline backend services in a Gradle and Maven environment.
- Implemented OAuth2-based authentication and authorization mechanisms to secure RESTful APIs in Spring Boot applications.
Hannes D.
Last position:
Mobile App Developer at wikifolio
- Development and maintenance of a cross-platform mobile app with React Native (iOS/Android)
- Planning and implementing new features as well as optimizing existing functionality
- Implementing a native rich text editor (comment feature)
- Creating dynamic tables and charts including animations
- Integrating deep and native linking (Branch.io)
- Setting up and maintaining automated tests with Jest and Maestro
- Conducting code reviews to ensure code quality
- Working with CI/CD processes and automated release pipelines
- Collaborating closely with backend, design, and product teams
Timo S.
Last position:
Developer (AL) & Consultant at IT service provider
- Development of an application suite for AppSource (7 apps) focusing on customs processing & compliance
Juri S.
Last position:
Software Development at Banking Environment
- Extension of an existing application with new customer requirements.
- AlmaLinux, Ubuntu; C, gcc; Oracle;
- Socket/TCP communication.
- CLion, Eclipse
- Git
Nevil S.
Last position:
Partner and Managing Director at rencolab GmbH
- Developed the product vision and customer relationship management
- Developed the backend and simulation core
Saad A.
Last position:
AI Software Engineer at RoBoTec-PTC
- Built data pipelines with DVC for version control and efficient data management
- Trained and optimized AI models
- Improved CVAT with custom annotation formats, AI model integration, and streamlined annotation workflows
- Trained, debugged, evaluated, and deployed DCNN models in production
- Developed MaDCAT, an AI-powered CVAT extension for simultaneous data capture and annotation
Sanda T.
Last position:
Quality Engineer at AKKODIS (client: AIRBUS - Work package project)
- Strong understanding of Qualification process and aerospace standards (ABD0100, RTCA DO160, JAR 25)
- Successfully managed supplier progress reviews and product conformity in accordance with aerospace standards including ABD0100, RTCA DO160, and JAR 25
- Led product non-conformance containment and disposition activities across external supply chains, ensuring compliance quality standards for high-lift and hydraulic systems
- Led product non-conformance management (NCR) and applied APQP, FMEA, and 8D problem-solving (CAPA) in coordination with suppliers and OEMs, achieving a 15% reduction in process cycle time
- monitored production project KPIs (quality, timeliness, customer satisfaction) and implemented continuous improvement initiatives using Lean Six Sigma techniques
- Maintained and expanded certification scope for ISO 9001, ISO 14001, ISO 27001, ensuring alignment with both regulatory and customer-specific quality requirements
- Supported the configuration management and change control process, including MODs, MPs, TRS, SBs, and validated changes as part of certification and verification deliverables
- Authored and reviewed technical documentation (e.g., SDD, SRD, SID, PTS, V&V Summary, System Design Modification Plan, Flight Test Requests, Technical Notes), ensuring engineering definition compliance and traceability
- Engaged in product safety reviews and risk-based disposition decision-making processes, contributing to proactive quality assurance across the value stream
Discover over 15,000 top freelancers
Statistics of experts using SQL
Aggregated from the professional profiles of matched freelancers.
Experience
13 years (Germany: 19 years)
Position duration
1.8 years (Germany: 5.1 years)
Positions per freelancer
10 (Germany: 12)
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Automotive, Healthcare
Certification focus areas
Information Technology, Project Management, Business Intelligence
Bachelor's degree or higher
100% (Germany: 90%)
Master's degree or higher
64% (Germany: 61%)
Certifications per freelancer
2 (Germany: 3)
Most common languages
German, English, Russian
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 Bremen 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 Bremen using 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.
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 (87%)
- Automotive (47%)
- Healthcare (40%)
- Manufacturing (40%)
- Banking and Finance (33%)
- Professional Services (33%)
- Aerospace and Defense (27%)
- Education (27%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
What SQL does
SQL, or Structured Query Language, is used to store, organize, retrieve and change structured data. It is the working language of relational databases such as PostgreSQL, MySQL, Microsoft SQL Server, Oracle Database and SQLite. Companies rely on it for transactional applications, analytics, reporting and data exchange.
Systems and use cases
SQL sits behind customer portals, finance systems, inventory tools, booking services and internal business applications. It also supports data warehouses, dashboards and operational reporting, where accurate results and dependable access matter.
- Design tables, relationships and constraints
- Build queries, views, stored procedures and functions
- Prepare reporting and analytical data sets
- Migrate data between databases and services
Ecosystem and tooling
Strong SQL specialists understand database engines as well as the tools around them. Their work may include PostgreSQL extensions, MySQL replication, SQL Server Integration Services, Oracle PL/SQL, SQLite, cloud services such as Amazon RDS and Azure SQL, and reporting tools such as Power BI. They use version control, migration frameworks, testing tools and monitoring to keep database changes controlled.
When companies need help
Freelance SQL expertise is useful when an application is slow, a data model no longer supports the business or a migration carries operational risk. Companies also bring in specialists for warehouse design, query optimization, reporting projects and temporary delivery capacity. In Bremen, remote collaboration can support local teams across logistics, manufacturing, commerce and public services, while on-site work may help with workshops and system handovers.
- Queries take too long or consume excessive resources
- Reports show inconsistent figures across departments
- A legacy database needs restructuring or migration
- New application features require safe schema changes
Skills that distinguish specialists
Reliable professionals translate business rules into clear data structures and queries. They understand normalization, indexing, transactions, locking, execution plans, permissions, backups and recovery. They also know when denormalization, caching or a different storage model is appropriate instead of forcing every problem into SQL.
Choosing the right professional
Review work involving the same database engine, workload and delivery environment as your project. Ask how the specialist investigates slow queries, tests migrations, protects production data and documents decisions. A strong professional communicates clearly with application teams, analysts and non-technical stakeholders, and can work effectively in English or German when collaborating with a Bremen-based organization.
Frequently asked questions
What clients ask us most about SQL — answered in short.
SQL is used to create and manage relational data in applications, reporting systems, warehouses and operational databases. Professionals use it to retrieve records, enforce data rules, combine information and support reliable business processes.
SQL databases use structured schemas, relationships and strong query capabilities, which suit transactional data and consistent reporting. NoSQL systems can be more flexible for changing document structures or particular scaling patterns, so the right choice depends on the data model, workload and consistency needs.
A capable SQL specialist may work with PostgreSQL, MySQL, Microsoft SQL Server, Oracle Database or SQLite. The important point is relevant experience with the selected engine, including its query planner, security model, backup approach and operational tooling.
Professionals working with SQL often bring skills in data modeling, database administration, ETL, cloud infrastructure, application development and business intelligence. Experience with Python, Java, APIs, Docker or reporting tools can also help when database work is part of a wider system.
The complexity of the project matters more than a fixed experience requirement. A focused reporting task may need a query specialist, while a migration, high-volume system or sensitive production database calls for someone experienced in architecture, performance, testing and recovery.
SQL work is often well suited to remote collaboration through secure access, documented requirements, version control and review processes. Bremen teams may still prefer on-site workshops for data discovery or handover, while language expectations should be agreed before the engagement begins.
Ask the professional to explain a past data model, query optimization process or migration plan in practical terms. Good specialists discuss execution plans, indexes, transactions, testing, rollback options and data protection rather than presenting a query that merely works on a small sample.
Bring in an SQL specialist when slow queries, unreliable reports, difficult schema changes or a risky migration are blocking delivery. External expertise can also help establish database standards, review an existing design or transfer knowledge to an internal team.
The average hourly rate of freelancers in Bremen, Germany who have used SQL in their recent projects is 91 €, which corresponds to a daily rate of about 729 € based on an 8-hour working day.
Of the freelancers in Bremen, Germany who have used SQL in their recent projects, 100% hold at least a Bachelor's degree and 64% hold at least a Master's degree.
On average, freelancers in Bremen, Germany who have used SQL in their recent projects have 13 years of professional experience, with a single engagement typically lasting around 1.8 years.
The most common languages among freelancers in Bremen, Germany who have used SQL in their recent projects are German (100%), English (100%), and Russian (33%).
The most common industries among freelancers in Bremen, Germany who have used SQL in their recent projects are Information Technology (87%), Automotive (47%), and Healthcare (40%).
The most common business areas among freelancers in Bremen, Germany who have used SQL in their recent projects are Information Technology (93%), Product Development (80%), and Project Management (60%).
Main locations of FRATCH Experts, who have recently used 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 
Dresden 
Hanover 
Nuremberg Request a free demo
Get in touch with the FRATCH team and we will get back to you within 4 hours.
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Philipp Thomaschewski
FRATCH CEO
