MariaDB Experts in Hamburg
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Meet FRATCH Experts in Hamburg, who have recently used MariaDB
Daniel S.
Last position:
Senior Software Engineer at energielenker solutions GmbH
- Designed and implemented a Python-based ETL pipeline with the Dagster framework to transform raw energy data from heterogeneous sources using InfluxDB and visualizations in Grafana
- Defined time-based and dependency-based jobs
- Deployed to managed Kubernetes clusters using Helm
- Integrated InfluxDB Cloud
- Prepared data for use in Grafana, including cleaning, normalization, and time-based resampling in Python
- Developed dashboards and visualizations in Grafana
- Developed unit tests with mocking using pytest
- Set up a CI/CD pipeline in GitLab
Technologies: Python, Dagster, InfluxDB, Grafana, pandas, pytest, REST, CI/CD, GitLab, Container, Kubernetes, Helm, Docker, Cloud
Marcus B.
Last position:
Data Engineer at Deutsche Bahn AG via Scoore GmbH
- Development of ETL pipelines with Talend (7/ Enterprise)
- Development/adaptation of database schema/database functions (PostgreSQL)
- Development of GIT CI pipelines
Technologies: Talend Enterprise, Git, PostgreSQL, Dbeaver, SQL, PL-SQL, Liquibase
Florian W.
Last position:
Software Engineer at micimo GmbH
- Developing a professional scheduler for organizations with specific detailed requirements
- Evaluating different existing software solutions
- Creating a list of technical requirements
- Implementing these requirements
- Selected technologies: WebDAV, CalDAV, Rust, Baikal, OAuth, Keycloak
Alexander P.
Last position:
Head of integration for six country subsidiaries at XSYS Holding
- Analyzed the required scope of processes, infrastructure, and SAP for integrating the MacDermid subsidiaries
- Validated proposals from the new service providers
- Managed the collaboration and tracked the tasks of business and IT experts
- Coordinated communication and the PMO
- Created cutover plans in three waves for SAP conversion, Salesforce, and Ariba
Oliver L.
Last position:
Developer, Architect at libri GmbH
- Role: Developer, Architect
- Technologies: java, typescript, golang, spring (boot, web, security, data), Angular, AWS (OpenSearch, Aurora, SNS/SQS, CloudWatch, EC2, IAM), Kubernetes, Terraform, Helm, OAuth, Keycloak, CI/CD, gradlew, Liquibase, Test Driven Development, shell scripting
Jürgen B.
Last position:
Software Developer at Inform AG
- Coaching junior developers
- Further development and customer-specific extensions of a standard software product (microservices (DDD) and partly monolith)
- Interface extensions
- Web services
- Test automation
- Design
- Technologies used: Java8, Java17, TypeScript, Python, PostgreSQL, Spring (Integration, Data, Boot), JPA, AWS (Cloud, Lambda, EC2, SQS/SNS), Microservices, Fitnesse/Cucumber, Gitlab
Alexander W.
Last position:
Freelance Head of Development / Strategy Consultant at LabMaker GmbH
- Consulting on a wide range of open science hardware projects in the fields of electronics, mechatronics, and optoelectronics
- Comprehensive system analysis and DFM optimization of a novel open hardware miniaturized two-photon microscope
- Exchange with scientists from renowned academic institutions to align the customer’s work in the best possible way
- Production coordination with local and international partners for PCB assembly, CNC machining, and optics
- Process analysis for product design, production planning/execution, product lifecycle, and product data management
- Coaching employees from all departments on the requirements that complex technical products place on business processes
- Development of a comprehensive PLM & PDM concept tailored to the needs of development and manufacturing
- Initiating intensive and direct cross-departmental exchange to identify improvement potential
- Planning shopfloor layout improvements with the production team and supporting the implementation process
- Quick onboarding of two new English-speaking colleagues in technical product management and development
- Ad-hoc and in-depth training of employees in the use of software tools such as KiCad or Autodesk Inventor
- Consulting on long-term development into a scalable, even stronger partner for the open science hardware community
Johannes E.
Last position:
Libri GmbH
- Operation and further development of the inventory system for booksellers (Quimus). It is an in-house development by Libri that is sold to customers as Software as a Service. The software is developed in an agile way by two developer teams (about 5 developers each). The software consists of around 25 Java microservices that mainly communicate via messaging and share a common Angular frontend. The application runs on Kubernetes in AWS.
- Technologies used: Java 17 & 21, Spring Boot 2 & 3, Hibernate, MySQL, Spring Cloud AWS, Lombok, AWS SQS, AWS SNS, AWS RDS, AWS S3, DynamoDB, Kubernetes, Docker, OpenSearch, Hibernate Search, Liquibase, Gradle, Terraform, Helm, GitLab CI, Keycloak OAuth2, TypeScript, Angular
- My focus until December 2023: Connecting additional POS systems to the inventory system. Connecting the data warehouse for report display. Extending existing features (goods receipts, invoicing, item management, ...). Operations and DevOps tasks.
- Focus from January 2024: Extracting the product search from the inventory system into a global service to use in other applications. Integrating the product search into the booksellers' online shops (also run by Libri). Importing and providing digital items in the product search.
Frank H.
Last position:
Project Manager Database Upgrade at Bank
- Planning, coordination and tracking of tasks for database administration (DBA)
- Coordination with application developers and test managers (QA) involved in the project
- Migration of existing databases in several stages
- Coordination and communication with stakeholders
- Technologies: MariaDB
- Tools: MS Office, Confluence, Jira
- Methods: project management according to the client's process
- Project language: English / German
René S.
Last position:
CRM Developer at CiS GmbH
- Developed a greenfield CRM for managing incoming customer requests for a municipal utility provider
- Implemented with PHP/Symfony 5, EasyAdmin, Doctrine ORM and Oracle XE
- Handed over to CiS GmbH after initial groundwork as planned
Adrian H.
Last position:
Interim Consultant for Oracle Database Migrations to the AWS Cloud at Bank Deutsches Kraftfahrzeuggewerbe GmbH
- Migration of Oracle databases from on-premise to the AWS Cloud
- Support for technical Oracle solutions and cloud database infrastructures (IaaS and PaaS) RDS vs. EC2, sizing for performance
- Creation and maintenance of DR/HA (Disaster Recovery/High Availability) and backup and recovery policies and procedures (multi-region backup)
- Support for Oracle license selection, Enterprise → Standard migration
- Monitoring database instances
- Implementation and maintenance of database security (wallet, SSL)
- Patch management and version control
- Automated installation and configuration of Oracle databases using Terraform and Ansible
Akram B.
Last position:
Frontend / Backend Developer at ethikPool / folioNet
- Developed a complete solution for ethics committees and medical boards from submission to approval
- Integrated a DICOM viewer to display medical images (CT, MRI)
- Implemented a filesystem with folder and subfolder structure
- Found and fixed security vulnerabilities
- Improved code quality and application performance
- Maintained client servers
Osiozekhai A.
Last position:
Developer at Amorelie
- New calendar functions for the Christmas calendar
- Improved RMA handling
- Setup new Docker environment for the team
Discover over 15,000 top freelancers
Statistics of experts using MariaDB
Aggregated from the professional profiles of matched freelancers.
Experience
18 years (Germany: 20 years)
Position duration
2.2 years (Germany: 3.1 years)
Positions per freelancer
12 (Germany: 14)
Top business areas
Information Technology, Product Development, Operations
Top industries
Information Technology, Retail, Transportation
Certification focus areas
Information Technology, Project Management, Accounting
Bachelor's degree or higher
45% (Germany: 78%)
Master's degree or higher
9% (Germany: 44%)
Certifications per freelancer
2
Most common languages
German, English, French
Speak two or more languages
100% (Germany: 97%)
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 Hamburg 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 Hamburg using MariaDB
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.
MariaDB 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%)
- Retail (62%)
- Transportation (54%)
- Banking and Finance (46%)
- Healthcare (38%)
- Manufacturing (38%)
- Professional Services (38%)
- Telecommunication (38%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Production Database Architecture with MariaDB Server
MariaDB Server is an enterprise relational database system engineered as an open source drop-in replacement for MySQL. Organizations rely on it to power transactional workloads, web platforms, and critical operational backends requiring high performance and strict consistency.
Advanced Storage Engines and Ecosystem Tooling
Modern deployments leverage distinct storage engines tailored for specific data access patterns. Specialists manage diverse components across the data tier:
- InnoDB and Aria engines for high-throughput ACID transactions
- ColumnStore for distributed analytical processing and reporting
- MaxScale database proxy for load balancing, query caching, and firewall filtering
- Galera Cluster for multi-master synchronous replication
- Backup tools such as Mariabackup for physical hot backups
Delivering High Availability in Hamburg Enterprises
Technology leaders in Hamburg implement resilient data architectures to support digital commerce, maritime logistics, and regional fintech services. Local teams frequently combine on-site planning sessions in corporate offices with focused remote delivery across distributed environments.
Core Project Tasks and Freelance Deliverables
Companies hire external database professionals when standard maintenance falls short of operational demands:
- Tuning slow query execution plans and rebuilding indexing strategies
- Migrating proprietary setups to MariaDB Enterprise Server
- Setting up zero-downtime replication topologies and automated failover
- Automating provisioning using Ansible, Terraform, and container workflows
- Hardening data security to meet strict European compliance standards
Navigating Migrations and Major Version Upgrades
Migrating legacy database instances requires deliberate planning to avoid downtime and data loss. Experts analyze schema compatibility, audit proprietary stored procedures, and benchmark transaction throughput under realistic loads before cutting traffic over to updated MariaDB releases.
Hallmarks of Seasoned MariaDB Specialists
Top database professionals understand memory allocation, buffer pool sizing, and query execution at the storage engine layer. They solve complex replication lag, evaluate concurrency limits under peak loads, and integrate databases seamlessly into existing continuous deployment pipelines.
Frequently asked questions
Quick answers to the questions that come up most around MariaDB.
MariaDB powers mission-critical online transaction processing systems, high-concurrency web platforms, and data warehousing through dedicated analytical engines. Its pluggable engine architecture allows systems to process rapid read-write transactions alongside large reporting datasets.
While originating as an open source fork, MariaDB Server has introduced specialized performance improvements, distinct storage engines like ColumnStore, and the sophisticated MaxScale routing proxy. It delivers faster subqueries and broader SQL compatibility while maintaining drop-in ease for legacy applications.
Companies implement MariaDB with Galera when they need synchronous replication, multi-master active configurations, and zero data loss during node failures. It eliminates the failover delay typical of traditional primary-replica setups.
A qualified specialist in MariaDB typically demonstrates proficiency in Linux administration, shell scripting, and infrastructure automation using tools like Ansible. They also possess deep knowledge of networking, kernel parameter tuning, and database monitoring using Prometheus or Grafana.
Organizations in Hamburg often organize projects on a hybrid basis, conducting architecture audits and go-live operations on-site while managing ongoing query optimization remotely. Working across fluent English and German environments ensures clear documentation and smooth alignment with internal operations teams.
Strong candidates demonstrate hands-on experience solving replication drift, dissecting complex EXPLAIN outputs, and executing live recoveries with Mariabackup. They provide concrete examples of buffer pool tuning, lock contention reduction, and schema refactoring in high-traffic environments.
Most standard applications swap existing MySQL deployments for MariaDB without changing application code or connectors. However, complex implementations with custom stored procedures, proprietary plugins, or specialized replication require thorough staging audits by an experienced specialist.
Organizations engage independent experts when scaling issues arise, such as high lock latency, unoptimized schemas, or upcoming major platform migrations. A focused engagement with a MariaDB specialist rapidly stabilizes performance and establishes repeatable cluster backup and failover routines.
The average hourly rate of freelancers in Hamburg, Germany who have used MariaDB in their recent projects is 97 €, which corresponds to a daily rate of about 779 € based on an 8-hour working day.
Of the freelancers in Hamburg, Germany who have used MariaDB in their recent projects, 45% hold at least a Bachelor's degree and 9% hold at least a Master's degree.
On average, freelancers in Hamburg, Germany who have used MariaDB in their recent projects have 18 years of professional experience, with a single engagement typically lasting around 2.2 years.
The most common languages among freelancers in Hamburg, Germany who have used MariaDB in their recent projects are German (100%), English (100%), and French (23%).
The most common industries among freelancers in Hamburg, Germany who have used MariaDB in their recent projects are Information Technology (100%), Retail (62%), and Transportation (54%).
The most common business areas among freelancers in Hamburg, Germany who have used MariaDB in their recent projects are Information Technology (100%), Product Development (85%), and Operations (69%).
Main locations of FRATCH Experts, who have recently used MariaDB
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 
Munich 
Cologne 
Frankfurt 
Dusseldorf 
Leipzig Countries:
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Philipp Thomaschewski
FRATCH CEO
