MariaDB Experts in Berlin
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Meet FRATCH Experts in Berlin, who have recently used MariaDB
Toralf C.
Last position:
IT Consultant in PKI Software Development at BWI
- Implementation of a full-stack application with Angular as frontend framework and Java as backend language
- Use of the Swagger OpenAPI specification for REST communication between frontend and backend applications
- Control of a card printer via the Nexus Card SDK framework
- Design and implementation of card management software with web interface and JavaFX module for printer monitoring
- Use of Cucumber tests for test automation and creation of test artifacts for testing outside the development environment
- Use of Wireshark for network investigations to analyze the API of a third-party product and to check the REST API of the self-developed software
Stefan D.
Last position:
Frontend Developer – Sports Event and City Portal Projects at München Betriebs GmbH
- Developed an accessible, responsive website based on Figma designs for a major sports event in compliance with WCAG, BITV and EN 301 549
- Planned and set up the tool stack with Vite, Playwright, Docker and GitLab CI
- Worked on two existing projects (Vue.js & Nuxt), focusing on bug fixing, accessibility audits and developing new features
- Collaborated with Design and QA to consistently implement accessible UI patterns
- Advised on improving existing frontend architectures in terms of accessibility, performance and maintainability
Mathias W.
Last position:
Implementation of an on-premise OCR solution with information extraction at Mindhopper GmbH
- Insurance service provider*
Challenge: Business-critical documents were processed through external OCR providers, with ongoing costs, dependency, and data privacy risks for sensitive insurance data.
Implementation:
- Architecture and production implementation of an on-premise OCR solution with full data ownership
- Methods for recognizing document structures as the basis for automated further processing
- ML-, NLP-, and LLM/VLM-based information extraction, especially from invoices and quotations
Success: Replaced external providers: full data ownership, GDPR-compliant processing, and 75% lower recurring OCR costs per year
Used technologies: Python, Docker, Microservices, FastAPI, PyTorch, Torchvision, MongoDB, MySQL
Daniel B.
Last position:
Senior Cloud Consultant and Developer at SDIA/Leitmotiv
- Consulting an NGO in the field of data center sustainability in publicly funded projects (BMUKN with NADIKI and Umweltbundesamt with SIEC)
- Development of Python APIs and web applications, deployment on AWS/ECS with Terraform
- Collecting power consumption metrics for servers, CPUs, GPUs running AI workloads
- Technologies used: AWS, EC2, ECS, Fargate, CloudMap, VPC, Route53, Lambda, EventBridge, CodeBuild/CodePipeline/CodeDeploy, Terraform, Docker, Linux, Bash scripting, Python, Flask, SQLAlchemy, SQL, MariaDB, InfluxDB, Telegraf, Prometheus, Zabbix, Kubernetes, Letsencrypt, certificate management
Recep C.
Last position:
Sr. Software Engineer at Endava
- Designed and deployed scalable REST APIs for enterprise clients
- Led migration of legacy systems to modern maintainable system, reducing deployment time and enabling daily deployments
- Mentored junior developers and collaborated cross-functionally to align technical roadmaps with business goals, improving team velocity by 50%.
- Tech Stack: PHP (Symfony), Golang, PostgreSQL, MySQL, GCP, Terraform, Kubernetes
Christian G.
Last position:
Product Owner – Redesign of an iOS and Android SaaS application platform at iApps Technologies GmbH
- Led the redesign of an iOS and Android B2B SaaS solution.
- Developed the product vision and strategy and designed the platform architecture.
- Worked closely with cross-functional teams to create a user-centered, forward-looking product.
- Identified market trends and analyzed feedback from stakeholders and customers.
- Developed a well-thought-out feature set.
- Led the product design and development process.
- Created Balsamiq wireframes.
- Conducted comprehensive market and competitor analysis.
- Defined the product roadmap and feature scope, managed and prioritized the backlog.
- Crafted and wrote epics and user stories.
- Briefed UI designers and reviewed and approved Figma layouts.
Daniel S.
Last position:
Frontend and Web Developer at Datalyze Solutions
- Frontend development and implementation of various designs (landing pages, overview pages)
- Responsible for the content and updates of the Datalyze Solutions company website
- Joint planning and development of an admin application for listing and locating real estate projects (CBRE)
- Joint planning and development of extensive solutions for automatic staff allocation in plants (Bosch)
- Backend development of various small projects with different stacks
- Tech stack: GitLab CI/CD, Elixir, Phoenix Framework, Ecto, PostgreSQL, Docker, Hetzner, Traefik, NGINX, Python, Flask, Next.js/React, Leaflet, GeoServer, TypeScript, MongoDB
Thomas M.
Last position:
Lead Cloud Infrastructure Engineer at TrackCode GmbH
- Developing GitHub Actions/pipelines for automatic application deployment
- Supporting the provisioning of Helm charts for the CI/CD infrastructure
- Rebuilding and migrating a Kubernetes cluster using Rancher
- Creating IaC with Terraform for Kubernetes and additional services (monitoring, databases)
- Deploying a highly available Percona Galera cluster (MySQL)
- Implementing a centralized monitoring and logging infrastructure
Thomas S.
Last position:
GEDISA mbH
- Development of various backends (PHP) in a microservice architecture with STRENGTHS
- Development of administration interfaces with Laravel Filament diligent consistent agile
- Integration of third-party providers via REST interfaces patient attention to detail motivating
Ramu M.
Last position:
Software Development Engineer at Olive Crypto Systems Pvt Ltd (National Payments Corporation of India)
Contributed to the development of a UPI simulation system, ensuring alignment with NPCI standards from UAT to production, and achieving a 98% success rate with improved API workflow clarity.
Built a data-driven certification process that increased scenario coverage by 40% and cut certification time to 1 week.
Executed 100+ transaction scenarios for switch testing using a real-time sample bank, achieving 85% accuracy in critical flows and supporting on-time certification for banks.
integrated Spring Boot microservices with RabbitMQ to automate certification workflows, reducing manual efforts by 40%.
Supported the rollout of a global UPI simulation tool used by 20+ international partners to explore real-time remittance APIs and process flows efficiently.
Streamlined certification workflows, reducing integration time by 50% and enabling full API understanding within a week.
Engineered a real-time international remittance simulator and testing framework facilitating API/application flow comprehension for partners like Lyra and TerraPay; cut partner integration time by 40%.
Developed RESTful APIs using Spring Boot and Kafka to simulate high-volume remittance traffic for partner certification.
Collaborated with international partners to optimize API performance, identifying and resolving latency issues, resulting in a 25% reduction in response times during partner integrations.
Chitrung N.
Last position:
Staff Software Engineer - Infrastructure at Workpath
- Owning, designing, securing, maintaining reliability of the cloud based platform environments
- Increasing developer productivity and growing the infrastructure team horizontally and vertically to 5 engineers
- Realised infrastructure cost reduction of 50% by utilizing efficient spot instances
- Improved PE developer efficiency by 15% with survey led development process
Christian R.
Last position:
Freelance Data Engineer at Ingenieurbüro Christian Richter – Data, Cloud & Container
- Contributed to over 20 successful projects
Cyprien A.
Last position:
Systemberatung.it GmbH
Development of a Shopware 6 plugin to display a standalone spare parts search within Shopware
Model selection via VIN/full-text search and dropdown menus
Selection of desired component groups
Selection of required spare parts from an exploded view or parts list
Garage extension:
Added a 'Garage' menu item in the header
Storage of the vehicle ID in the user profile
Ability to add, filter, and remove multiple vehicles
Adding vehicles by VIN (VIN-search REST endpoint) or by the garage's filter options
Robert H.
Last position:
Senior Software Engineer at Zalando SE
Michael W.
Last position:
TUI AG / Robinson
- Development of an Internet Booking Engine IBE (Saber and Juniper) and other microservices
- Backend development with PHP and Symfony, endpoint and interface implementation
- Unit and integration testing
Discover over 15,000 top freelancers
Statistics of experts using MariaDB
Aggregated from the professional profiles of matched freelancers.
Experience
21 years (Germany: 20 years)
Position duration
2.5 years (Germany: 2.3 years)
Positions per freelancer
14 (Germany: 15)
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Media and Entertainment, Education
Certification focus areas
Product Development, Information Technology, Project Management
Bachelor's degree or higher
89% (Germany: 78%)
Master's degree or higher
33% (Germany: 44%)
Doctorate
22% (Germany: 11%)
Certifications per freelancer
1 (Germany: 2)
Most common languages
English, German, Spanish
Speak two or more languages
94% (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 Berlin 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 Berlin 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 29 Oct 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%)
- Media and Entertainment (56%)
- Education (44%)
- Retail (44%)
- Banking and Finance (38%)
- Professional Services (31%)
- Government and Administration (31%)
- Advertising (25%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Database foundations
MariaDB is an open-source relational database system used to store, organize, and query structured business data. It supports SQL, transactions, indexes, views, stored procedures, and foreign keys for applications that need consistent records. Its MySQL compatibility makes it a practical choice for established web and enterprise environments.
Where it runs
MariaDB powers content platforms, online shops, customer portals, SaaS products, and internal business applications. It is also used behind PHP, Java, Python, Node.js, and .NET services, often alongside Linux-based infrastructure. Berlin companies may use it in remote-first teams or in on-site projects that require close collaboration with product and infrastructure specialists.
Ecosystem and tooling
Strong MariaDB expertise includes database design, SQL, query optimization, access control, and operational monitoring. Professionals may work with Galera Cluster, replication, MaxScale, Docker, Kubernetes, and cloud storage, depending on the system architecture.
- Schema design and normalization
- Index and query performance tuning
- Replication, clustering, and failover planning
- Backup, restore, and migration workflows
When companies need help
Companies often bring in freelance specialists during a migration from MySQL or another database, a performance bottleneck, or a major application release. They also need focused support when production reliability, data growth, security reviews, or recovery procedures have become difficult to manage internally.
- Slow queries and overloaded database servers
- Migration planning with controlled downtime
- High-availability and disaster-recovery design
- Production audits and infrastructure documentation
MariaDB and alternatives
MariaDB is frequently compared with MySQL because both share much of the SQL and application ecosystem. PostgreSQL may be preferred for advanced data types, complex analytical queries, or specialized extensions, while managed cloud databases can reduce operational work. The right choice depends on compatibility, workload, hosting model, and team skills.
What strong experts bring
A strong specialist combines database knowledge with application and infrastructure awareness. They can explain trade-offs, inspect real workloads, create safe migration steps, and measure improvements without compromising data integrity. Look for clear documentation, disciplined backup testing, secure permissions, and evidence of handling production incidents calmly.
Frequently asked questions
Need clarity? These are the questions we hear most often about MariaDB.
MariaDB is used to store and query structured data for websites, online shops, SaaS products, and internal business applications. It handles transactions, relationships, permissions, and concurrent access, making it suitable for systems where reliable records matter.
MariaDB began as a compatible alternative to MySQL and remains familiar to teams using MySQL tools and application drivers. The systems have diverged in storage engines, features, and release choices, so a specialist should check compatibility before planning a migration.
MariaDB can be a strong fit when MySQL compatibility, established SQL workloads, or an existing MariaDB skill base are important. PostgreSQL may suit systems that depend on advanced data types, complex queries, or specialized extensions; the decision should follow the workload rather than preference alone.
MariaDB work often connects with Linux administration, SQL application code, Docker, Kubernetes, cloud storage, and observability. Experience with replication, Galera Cluster, MaxScale, backup systems, and security controls is valuable for production environments.
MariaDB projects vary widely. A small schema or query review may need focused database expertise, while a high-availability migration requires proven work with replication, recovery testing, capacity planning, and controlled production changes.
MariaDB work is often well suited to remote collaboration because access, diagnostics, documentation, and change reviews can be handled securely online. On-site sessions may still help with architecture workshops or incident response, while clear English or German communication should match the team.
MariaDB quality shows in measurable query behavior, clear schema decisions, tested backups, secure permissions, and documented recovery steps. Ask a specialist to explain trade-offs using your workload and to describe how they would test changes before production rollout.
MariaDB specialists should confirm the workload, data volume, service-level needs, hosting model, access limits, backup status, and deployment process. They should also establish whether the assignment covers design, performance tuning, migration, daily operations, or incident support.
The average hourly rate of freelancers in Berlin, Germany who have used MariaDB in their recent projects is 103 €, which corresponds to a daily rate of about 821 € based on an 8-hour working day.
Of the freelancers in Berlin, Germany who have used MariaDB in their recent projects, 89% hold at least a Bachelor's degree, 33% hold at least a Master's degree, and 22% hold a doctorate.
On average, freelancers in Berlin, Germany who have used MariaDB in their recent projects have 21 years of professional experience, with a single engagement typically lasting around 2.5 years.
The most common languages among freelancers in Berlin, Germany who have used MariaDB in their recent projects are English (100%), German (88%), and Spanish (19%).
The most common industries among freelancers in Berlin, Germany who have used MariaDB in their recent projects are Information Technology (100%), Media and Entertainment (56%), and Education (44%).
The most common business areas among freelancers in Berlin, Germany who have used MariaDB in their recent projects are Information Technology (100%), Product Development (100%), and Project Management (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.
Hamburg 
Munich 
Cologne 
Frankfurt 
Dusseldorf 
Leipzig Countries:
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