Galera Cluster Experts in Germany
matched in minutes from over 15,000 CVs with the power of AIHire experts who design synchronous MariaDB or MySQL replication, handle failover with ProxySQL and HAProxy, and migrate production workloads safely. FRATCH matches you quickly with vetted, available freelancers who fit your technical needs.
Meet FRATCH Experts in Germany, who have recently used Galera Cluster
Matthias W.
Last position:
DevOps Engineer at Interhyp AG
- Infrastructure management with Puppet and Terraform for consistent environments
- Maintenance and adaptation of Terraform scripts for Azure cloud deployment
- Migration of database systems and services to the Azure Cloud
- Introduction of GitOps with ArgoCD for fully automated deployments
- Adaptation and development of GitHub pipelines for CI/CD workflows
- Creation of Helm Charts for standardized deployments
- Migration of repositories from Bitbucket to GitHub
- Operation and performance optimization of an Oracle 19c Grid cluster (RAC, Dataguard)
- Setup and management of MongoDB instances (on-premise and Azure Kubernetes)
- Setup of PostgreSQL clusters in on-premise and Azure Kubernetes environments
- Migration of services, master data, and stored procedures from Oracle to PostgreSQL
- Troubleshooting and performance tuning of complex data infrastructures
- Installation, configuration, and upgrade of Tableau in the productive BI environment
- Development of sanity checks to monitor business processes and application logic
- Adaptation of the backup and recovery strategy to new requirements
- Execution of disaster recovery and point-in-time recovery
- Technologies used: Oracle 19c RAC Grid Dataguard, PostgreSQL 16, MongoDB, MySQL Cluster, Kubernetes (Azure), Tableau, Puppet, Terraform, ArgoCD, GitHub/Bitbucket, CheckMK, Prometheus, Grafana, Icinga2, Ubuntu/RHEL
Hauke W.
Last position:
Process Automation Engineer at German Edge Cloud / WIIT AG
- Re-designing and implementing the incident management process into Jira
- Implementing the business impact analysis in Jira
- Developing Slack and StatusPage integration in ScriptRunner for Jira
- Mapping of business processes into Jira
- Implementing the service catalogue in Jira, based on Assets as "database" and Jira tickets + SR behaviours as UI for users
- Helping teams with automations, workflows and screens to save time and nerves while using Jira
- Helping teams to perform agile transformations
- Creating a Jira and Confluence based foundation for compliance frameworks and certifications like ISAE 3402 and BSI C5
- Atlassian Stack administration
Daniel W.
Last position:
Web Developer and Linux System Administrator at Freelancer
- Consultation on setting up a web server with Apache2 and PHP FPM and an email server with Postfix and Dovecot for Learn4good Ltd.
- Programmed website under-construction.bermudafunk.org in collaboration with a designer and client for bermuda.funk Freies Radio Rhein-Neckar e.V.
- Consultation and network setup on-site including switches, routers, Wi-Fi, network monitoring, firewalls, and installation of sFirm banking software for The Swiss Quality Consulting GmbH
- Consultation on website management and development, email migration from Outlook to cPanel, image optimization, and setting up Square payments for The JABA Group Ltd.
- MS365 consultation, email setup, and document synchronization for PK reno GmbH
- Development and integration of WooCommerce plugins, B2B shop setup, and custom shipping label export for Nurso GmbH
- Minor changes implementation for existing Kirby system for Julia Rautenhaus
- Analysis and fixing of WordPress website after broken updates for Alina Frey
- Linux server hardening, updates, and throughput optimization for 3proxy servers for Lietparkas UAB
- Malware removal from hacked WordPress website for Timo Horn
- Cold email outreach system setup with Postfix and Dovecot and script development for Aman Ketebo
- Customized Docker container creation based on AlmaLinux with ImageMagick 7 and consultation on Docker installation for Henry Hook
- Plesk hosting environment management, code fixes, external supplier integration, and content support for First Class Corporation
- Shopify theme customization, feature development, and payment integration consultation for Youro GmbH
- Intel camera support on Ubuntu after upgrade for Making stories with a lesson
- NginX configuration support on Windows Servers for a NodeJS application for ARMBRUSTER empiric it
- Competitor email verification mechanism analysis for Casey Monaghan
- Plugin development and API connector to Inswitch for freelance website payments for Mediaquotes
- Private XMPP server setup on Raspberry Pi for Antonio Codespoti
- WordPress website recovery after broken plugin update for A & R Tennis
- Microsoft account and Office/Outlook migration support for Prof. Dr. Hanns-Ferdinand Müller
- Customization and performance optimization of client websites for sk.design
- VPN configuration and hacked server cleanup for Xisio Informationssysteme GmbH
- PeerTube server setup and maintenance for Lupin Vondosky
- Lightweight WordPress booking solution programming tailored to client needs for AP Online Marketing
- Code refactoring, bug fixing, and business/technical consultation for RentAfrika
- SellYourSaas setup and deployment infrastructure configuration for I-Motion SARL
- Server, email, GitLab, project management, password management software, and VPNs setup and maintenance for Markus Sattler
- Custom development for over 10 WordPress projects for TOGEMAXX media & webdesign
- WooCommerce shop setup and FTP supplier product import development for SERVOMED GmbH
- Open-source contributions to Whonix components, iptables to nftables migration, shutdown inhibition investigation, and IPv6 support addition for ENCRYPTED SUPPORT LP
- Custom feature development, performance optimization, update management, email delivery support, plugin bug fixes, and translations for KU Europe GmbH
- Custom plugin/theme development, server infrastructure management, support for 100+ WordPress websites, API connector development, deployment script setup, VPN configuration, DNS, email, and web hosting support for giftGRÜN GmbH
- Server setup, web and email hosting migration, and website maintenance and development for Eisbaden.de
- Custom WordPress and Shopify development for EcomPlus GmbH
- Hacked website recovery and hosting migration for Be Brave gUG
- Finalization of development tasks left incomplete by another developer for Medicare Consulting GmbH
- Recovery of unbootable hacked server for SK-Software, Entwicklung & Beratung
Hobby projects:
- Development and running of a web chat application
- Development and running of an email service
- Development and running of a darknet link list
- Development and running of a darknet web hosting platform
- Code contributions to open source projects such as LMMS, Audacity, and Ubuntu
Manfred S.
Last position:
Senior System Engineer Linux at DB InfraGo AG
- Set up and updated virtual machines for railway operations infrastructure.
- Used VMWare vSphere 6–8, Veeam Backup, Microsoft Active Directory, DNS, NPS, and WSUS.
- Used RedHat Satellite Server, rSyslog Server, Icinga2, Postfix, Tacacs, Ansible, and Ansible Automation Platform.
- Operated HPE rack servers and HPE Synergy blade servers with Meinberg NTP Server, Brocade FC, and Cisco Nexus 9000.
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
Nils M.
Last position:
Database Architecture for PostgreSQL at ComputaCenter / Deutsche
- Planning and documentation of database architecture and integration with other components provided by other teams and vendors
- Extensive documentation for the architecture, security, access control, encryption, roles and user management, backup and restore, disaster recovery and general operations
- Deployment of database clusters over 2 locations with 2 availability zones each
- Automation of deployment and operations including backup using Ansible
- Hardening of the database and operating system
- Migration of existing stand-alone database systems to cluster setup
- Technologies: PostgreSQL, Patroni, etcd, barman, RedHat Enterprise Linux 9 (RHEL), Ansible, Ansible Automation Platform, TLS, Hashicorp Vault, LUKS
Discover over 15,000 top freelancers
Statistics of experts using Galera Cluster
Aggregated from the professional profiles of matched freelancers.
Experience
18 years
Position duration
1.5 years
Positions per freelancer
20
Top business areas
Information Technology, Operations, Product Development
Top industries
Information Technology, Banking and Finance, Telecommunication
Bachelor's degree or higher
33%
Certifications per freelancer
0
Most common languages
German, English, French
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 Germany 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 Germany using Galera Cluster
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.
Galera Cluster 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%)
- Banking and Finance (67%)
- Telecommunication (67%)
- Government and Administration (50%)
- Retail (50%)
- Insurance (33%)
- Transportation (33%)
- Manufacturing (33%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
What Galera Cluster does
Galera Cluster is a synchronous, virtually synchronous database cluster for MySQL and MariaDB. It replicates committed transactions across participating nodes, so applications can continue using another node when one becomes unavailable. The technology is commonly associated with MariaDB Galera Cluster, Percona XtraDB Cluster and Codership Galera.
Core architecture
Galera uses certification-based replication rather than a traditional primary-replica model. Each node can accept writes, while the cluster checks transaction conflicts before applying changes. Strong specialists understand quorum, primary components, state transfer, flow control and the impact of network latency on write operations.
Ecosystem and tooling
The database layer is only part of a reliable Galera deployment. Professionals often work with:
- MariaDB Server, MySQL-compatible applications and InnoDB tables
- ProxySQL, HAProxy or MariaDB MaxScale for traffic management
- Systemd, Linux storage, backups, monitoring and alerting
- SST and IST methods, including donor selection and recovery procedures
They also connect cluster operations with infrastructure automation and observability tools.
Where it is used
Galera fits transactional applications that need database availability without relying on a single database host. Common settings include commerce, customer portals, telecommunications systems, hosting environments and internal business applications. It is useful when planned maintenance and node failures must cause limited service interruption, but it still requires careful application and workload design.
When companies need specialists
External expertise is valuable during a new cluster design, a MariaDB or MySQL migration, or a recovery from replication instability. Companies also bring in professionals when certification conflicts, SST traffic, failed nodes or uneven load affect production:
- Review topology, quorum and network assumptions
- Plan safe upgrades, migrations and rollback paths
- Tune wsrep settings, storage and connection routing
- Test failover, backups and disaster recovery
In Germany, remote collaboration often works well for planning and operations, while on-site support can help with controlled data-centre changes.
What strong professionals deliver
A capable Galera specialist explains trade-offs instead of treating multi-primary operation as a universal solution. They inspect workload patterns, transaction size, schema design, network paths and application retry behaviour before proposing changes. Their deliverables include an operational runbook, tested monitoring, clear recovery steps and evidence that failover works under realistic conditions. They also distinguish Galera issues from problems caused by proxies, storage or the application itself.
Frequently asked questions
What clients ask us most about Galera Cluster — answered in short.
Galera Cluster is used to keep MySQL-compatible databases available across multiple nodes through synchronous or virtually synchronous replication. Companies use it for transactional applications that need failover, planned maintenance options and consistent data across database hosts. A specialist should still assess whether the workload suits multi-primary operation.
Galera Cluster confirms transactions across the cluster before they are committed, while traditional primary-replica setups usually replicate changes asynchronously from one writer. This can reduce replica lag but makes network quality, quorum and write conflicts more important. A strong professional compares both designs against workload, recovery and operational requirements.
Galera Cluster is the replication technology behind related distributions such as MariaDB Galera Cluster and Percona XtraDB Cluster. The surrounding database version, packaging, support model and operational tooling can differ. Ask a freelancer which vendor distribution and release family they have operated in production.
Galera Cluster work usually requires Linux administration, InnoDB knowledge, SQL troubleshooting and experience with ProxySQL, HAProxy or MariaDB MaxScale. Backup design, monitoring, infrastructure automation and disaster recovery are also important. Application knowledge helps because transaction patterns and retry behaviour affect cluster stability.
Galera Cluster should be handled by a professional with substantial production experience when the database supports critical services. Look for evidence of cluster design, node recovery, SST and IST handling, upgrades, failover tests and incident response. A short proof-of-concept may need less depth, but production changes demand disciplined operational practice.
Galera Cluster projects can often be delivered remotely through secure access, documented change plans and coordinated maintenance windows. On-site collaboration in Germany may be useful for data-centre work, hardware changes or tightly controlled migrations. Agree on language, access procedures, escalation paths and availability before the engagement begins.
Galera Cluster quality is best judged through concrete examples, not a list of tools. Ask how the specialist handled quorum loss, certification conflicts, donor selection, backup validation and a failed node. A strong answer connects technical decisions to application behaviour, recovery objectives and measurable operational evidence.
Galera Cluster can suffer when networks are slow, transactions are large, writes conflict or applications assume unrestricted single-node behaviour. Poor quorum planning and untested recovery procedures can also turn a node failure into an outage. An experienced professional validates workload suitability, routing, monitoring and disaster recovery before production rollout.
The average hourly rate of freelancers in Germany who have used Galera Cluster in their recent projects is 114 €, which corresponds to a daily rate of about 910 € based on an 8-hour working day.
Of the freelancers in Germany who have used Galera Cluster in their recent projects, 33% hold at least a Bachelor's degree.
On average, freelancers in Germany who have used Galera Cluster in their recent projects have 18 years of professional experience, with a single engagement typically lasting around 1.5 years.
The most common languages among freelancers in Germany who have used Galera Cluster in their recent projects are German (100%), English (100%), and French (17%).
The most common industries among freelancers in Germany who have used Galera Cluster in their recent projects are Information Technology (100%), Banking and Finance (67%), and Telecommunication (67%).
The most common business areas among freelancers in Germany who have used Galera Cluster in their recent projects are Information Technology (100%), Operations (100%), and Product Development (83%).
Main locations of FRATCH Experts, who have recently used Galera Cluster
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 Request a free demo
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Philipp Thomaschewski
FRATCH CEO
