Graylog Experts in Germany
for secure log management, matched in minutes with vetted and available freelancersHire experts who centralize logs, build reliable dashboards and tune alerting across Graylog Open and Graylog Enterprise. Get precise AI matching with vetted, available freelancers for your monitoring and security projects.
Meet FRATCH Experts in Germany, who have recently used Graylog
Ales L.
Last position:
Senior DevOps Consultant (Freelance) at European Union Agency (via IBM)
- Worked as freelance Senior DevOps Consultant on-site for IBM at a European Union Agency, operating in a highly secure, air-gapped environment managing classified systems.
- Led automation and DevOps initiatives for a large-scale OpenShift platform (>400 nodes), driving deployment efficiency, GitOps adoption, and operational automation using Ansible, Python, and Bash while ensuring compliance with security requirements.
- Spearheaded automation of release and deployment workflows in a private cloud environment hosting 400+ OpenShift nodes, significantly improving deployment speed and reliability.
- Migrated existing playbooks, roles, and templates from Ansible Tower to Ansible Automation Platform (AAP), ensuring full compliance with fully-qualified collection names (FQCN) and preparing custom Execution Environments (EE) for containerized automation.
- Implemented GitOps Agent for AAP Controller Configuration as Code, enabling automated synchronization (CRUD) of Ansible Controller objects based on repository-stored configuration definitions using GitHub webhooks.
- Designed and automated complex multi-step operational workflows including environment cleanup, Helix cluster component re-creation, Kafka topic management, and OpenShift object lifecycle management across ~100 environments.
- Achieved a reduction of multi-day manual operations to under a few hours through automation improvements spanning multiple AAP clusters and OpenShift environments.
- Integrated Ansible Automation Platform with Thycotic (Delinea) Secret Server via lookup plugin to enhance secure credential management in automated processes.
- Managed deployment tasks, platform troubleshooting, and Istio network configurations while adhering to stringent EU PSC security and compliance standards.
- Collaborated with infrastructure and application teams to refine deployment procedures, develop naming conventions, and continuously improve automation coverage in an air-gapped, classified environment.
Salim C.
Last position:
Cloud / Systems Architect
- Development and introduction of operations processes
- Preparation of complete documentation packages (including incident management and operations support) to meet compliance requirements
- Introduction of a workshop on IaC (Infrastructure as Code)
- Technical consulting for the project security concept (ISMS)
- Installation and operation of Kubernetes clusters on AWS, on-prem, and Azure
- Hybrid cloud architecture design (on-prem, Hetzner, AWS)
- Analysis and troubleshooting of incidents and system outages
- Network adjustments for firewall rules, gateways, OpenVPN settings, and IPsec tunnels (pfSense)
- Technical consulting on Bitbucket, Jenkins, and GitLab CI/CD pipelines
- Consulting on Ansible deployments and infrastructure automation
- Consulting on building a scalable system in the cloud (AWS / Azure)
- Technologies / Tools: Ansible, Terraform, AWS, Azure, VPN, pfSense, Jenkins, Bitbucket, Kubernetes, GitLab Runner, ISMS, Golang, Prometheus, Grafana, S3, Lambda, RDS, ECS, Cognito, OIDC, Harbor, MinIO, Postgres, Redis, Keycloak, Ceph, Proxmox, CloudFormation, PostgreSQL, Flux CD, Hetzner, IONOS, Sonatype Nexus Repository, Entra ID, Dex IdP, Pulumi
Panagiotis T.
Last position:
Senior Data Engineer Consultant at GOLDNER GmbH
- Onboarded and conducted comprehensive documentation and system analysis to assess the existing data infrastructure, facilitating rapid integration and collaboration across functional data teams (modelling, processing, reporting).
- Collaboratively defined the architecture and project structure for a central data pipeline repository, including hierarchical standards, knowledge management strategies, and role-specific responsibilities, enhancing maintainability and onboarding speed.
- Evaluated and validated open-source data routing tools (Airbyte, Apache NiFi, Dragster) for ingest and sync requirements in retail analytics, including local benchmarking and error-state testing.
- Led the design and deployment of Airbyte in Kubernetes, creating customized Helm charts, securing secrets handling, and configuring Ingress with TLS and internal DNS routing, ensuring full API and UI accessibility.
- Troubleshot and resolved Ingress controller issues, iterating through multiple stages of debugging and testing, and documented setup and replication steps for scalable reuse.
- Mapped data models to ARTS standard, supporting schema alignment for ERP and reporting use cases, and coordinated review loops to align future data processing logic.
- Drafted strategic 1-pagers comparing MinIO, Pub/Sub, and routing architectures, providing technical guidance for architectural decisions and investment planning.
- Enabled secure access and authentication mechanisms, including initial evaluation for SAML integration, cluster-level configuration reviews, and service annotation improvements.
Stefan R.
Last position:
Business Analyst at Galeria
Independently managed the POS tender process for food service operations in department stores.
Structured requirements gathering, both functional and technical.
Created a management-ready specification as a basis for decision-making by management and IT.
Market overview of relevant POS providers.
Close coordination with Galeria's IT and business departments.
Predrag P.
Last position:
Test Developer | Test Automation Engineer at CreditReform
Technologies: Java 25, Selenium, Insomnia, SSO, Gitlab, Jenkins, Docker, Kubernetes, Jira, IntelliJ, Nexus, Oracle, MariaDB, SpringBoot, Grafana, Concept Board, Vue.js, OpenApi, Kotlin. Implementation, maintenance, and enhancement of automated end-to-end regression tests for UI and API interfaces. Appropriate and targeted test automation involving multiple software products, including Java-based Windows applications. Automation of business processes with Selenium, reset jobs, and DB import jobs, as well as creation of test concepts, test case descriptions, and structured defect reporting.
Vivekanandhan S.
Last position:
DevOps Consultant/Site Reliability Engineer at IONOS
- Manage multiple Kubernetes clusters in Production with Ceph as storage layer.
- Implemented CICD pipelines for automating deployments with Gitlab CI
- Terraform for Infrastructure provisioning.
- Claude code
- Helm charts for deploying via ArgoCD
- Implemented automated incident notification pipelines in Kubernetes to align with NIS2 mandatory 24-hour early warning disclosure rules
- Configured Azure Policy and Logging guardrails aligned with BSI IT-Grundschutz (SYS.1.3 / OPS.1.1), ensuring continuous baseline compliance across 50+ cloud workloads
Environment: Gitlab CI, IONOS Cloud, Ceph, ArgoCD, terraform, Elastic cluster, Grafana, Alert Manager & Prometheus
Marko P.
Last position:
IT Support Specialist at Santander Consumer Bank
Jin-Ho Y.
Last position:
Server Migration Consultant at Unknown Client
- Linux server migrations: Planning and implementation of the migration with SLES Linux Deployment of VMs in VMware 8.0
- Guiding colleagues in configuring Linux VMs in vSphere Auto Deploy
- Application operations: Ensuring the smooth operation of applications on the migrated servers
- Operations manuals: Revising existing operations manuals, adding to them and creating new ones when required
- Reviewing service offerings: Adjusting and optimizing the service offering of external service providers
- Logistics SW, RedHat Linux, Ansible, Confluence / Jira
Uday V.
Last position:
Senior Full Stack Java Developer & DevOps Engineer at Deutsche Börse (DBAG)
Project: SCS (Settlement / Clearing Services)
Settlement platform serving multiple trading and clearing venues — counterparty risk safeguarding, settlement volume reduction, central risk management, and post-trade anonymity.
Technologies: Java 17, Spring Boot 3, Microservices, Spring Data JPA, SonarQube, Fortify (SCST), Mockito, Jenkins, OpenShift, Maven, Podman, GitHub, JIRA, Liquibase, Swagger, AMQP, Apache Camel, Terraform, PostgreSQL, Instana, Graylog.
- Identified and remediated CVEs in third-party libraries using SCA tooling, strengthening the security posture of production components.
- Maintained 90% code coverage with SonarQube, improving code quality and reducing production defects.
- Enabled mTLS for database authentication and message broker connections, enforcing encrypted, certificate-validated communication.
- Designed and deployed microservices with asynchronous, REST-based communication between components.
- Optimized a high-volume REST API (~200K requests) by reducing response time from 3s to 2s (33% improvement), boosting throughput and reliability under production load.
- Automated build and continuous integration pipelines using Maven and Jenkins.
- Orchestrated containerized workloads on Podman/OpenShift and governed schema evolution with Liquibase, ensuring reliable, repeatable deployments across all environments.
- Optimized Java code and implemented EHCache-based caching, improving application performance.
- Streamlined release management by governing application images, JAR versions, and dependencies through DBAG Artifactory, ensuring version consistency and audit traceability across environments
Anton L.
Last position:
Senior Solution Architect
Internal systems with regulatory and security requirements could not be used directly by AI tools for incident triage, troubleshooting, and documentation search. The goal was to securely integrate these systems through MCP while preserving existing acce...
Johannes K.
Last position:
Software Developer at Hoffmann Engineering Services GmbH
- Software development
- Technical design of software architecture and design (considering functional and non-functional requirements)
- Frontend and Backend
- Refactorings
- Code reviews
- Unit tests
- Automated integration tests
- E2E tests
Global Identity Services (GIS) is the identity provider for the Digital Services Platform (DSP). GIS is responsible for authenticating and authorizing end users and other DSP services by issuing security tokens. This includes:
- Identity management (e.g., user registration, password reset and change, user profiles)
- Management of roles and permissions
- Single Sign-On (SSO) across DSP services
- Management of OAuth resources and terms and conditions
Alexander S.
Last position:
AI Consultant for AI Voice Bot System at Rudolf Hörmann GmbH & Co.KG
- Consultant for system architecture, AI agents & integration, coach for data & process logic, Graph-RAG approaches, security and data protection.
- On-premise AI solutions with high compliance and performance requirements.
- Architecture decisions, operational setup, strategic prioritization & deployment.
- Technologies: LiveKit JS SDK, LiveKit Agents, Web Audio API, JS, AudioWorklet, Loki, vLLM, Zscaler, Docker, Neo4j, MySQL, Python.
- Models: GPT-OSS 20B, Whisper large v3 turbo, Qwen3-TTS.
Dirk P.
Last position:
Freelance Cyber Defense Lead & KRITIS/NIS2 Consultant | AI Security Architect at Self-Employed
Situation: Increasing demand for privacy-compliant AI solutions for clients in the KRITIS and mid-market sector that need to analyze sensitive media content (audio, video, documents) without sending data to public cloud LLMs.
Task: Design, deployment, and secure operation of a fully self-hosted AI infrastructure including a custom-built digital management platform for automated media analysis.
Action: Architected and implemented a multi-tier platform on hardened Proxmox infrastructure with frontend (Nuxt 3, Vue 3, TypeScript, Tailwind 4), backend (Laravel 13, PHP 8.4, Sanctum), data storage (PostgreSQL 16, MongoDB 7), caching/queuing (Redis 7, Laravel Queue), AI workers (Python 3.11, Whisper, DeepFace, Librosa), scheduling (Laravel Scheduler/Cron), and local LLMs (Gemma, DeepSeek, Qwen, Mistral, LLaMA, Phi) via OpenWebUI with segmented network access, API hardening, and audit logging following BSI recommendations.
Result: Fully GDPR-compliant, on-premises AI platform with zero data leakage to third parties.
Task: Overall responsibility as an external Head of Cyber Security / CISO-as-a-Service for the design, implementation, and continuous improvement of ISMS according to ISO 27001, BSI IT-Grundschutz, and NIS2.
Action: Built and managed Cyber Defense Centers (CDC) with SOC operations, integrated SIEM solutions (Splunk, Graylog), established risk-based vulnerability management (Qualys, Nessus, OpenVAS), and conducted regular infrastructure, application, and physical penetration tests.
Result: Audit-ready ISMS for multiple clients and a 60% reduction in critical vulnerabilities within 90 days.
Task: Design and execution of NIS2 assessments and operational roll-out plans for KRITIS operators.
Action: Developed an online assessment tool for automated identification of individual weakness profiles, implemented ISMS optimizations, penetration testing, awareness programs, GRC suite deployment, and delivered C-level presentations.
Result: Accelerated the consulting process by 50% and successfully prepared multiple clients for NIS2 compliance.
Task: Incident commander for crisis response, forensics, and business recovery in ransomware attacks and APT campaigns.
Action: Coordinated with state and federal police (LKA, BKA), performed forensic analysis (OSForensics, Wireshark, Kali Linux), executed disaster recovery and BCM strategies, and developed BTC extortion response strategies.
Result: 100% recovery rate within defined RTO windows and sustainable post-incident security architectures.
Action: Planned, built, and operated a hardened multi-VM infrastructure (Proxmox, 15+ VMs) with web and mail servers, Graylog, OPNsense firewalls, CRM/ERP and LLM instances, network segmentation, DDoS mitigation, automated patch management, and backup strategies.
Result: >99.5% uptime over 20+ years and zero compromises.
Action: Designed coordinated phishing campaigns with five levels of difficulty, developed e-trainings and webinars in a PDCA cycle, and led red and blue teams.
Result: Phishing click rate reduced from 35% to under 5% within three campaign cycles.
Robin S.
Last position:
Senior Cloud & Backend Engineer at Media-Saturn-Holding GmbH
- Implementing applications with Kotlin and Ktor as microservices
- Using MongoDB in the MongoDB Atlas cloud
- Asynchronous communication of services via Google Pub/Sub
- Using Kotest and MockK for unit tests
- Developing an administration frontend with TypeScript, React and Express.js
- Provisioning environments in GCP using Terraform
- Implementing CI/CD processes with GitHub Actions
- Operating scalable production and test environments in GCP with Kubernetes, Helm and Flux CD
- Monitoring environments with Prometheus and Grafana
- Providing BI data in the Google BigQuery data warehouse
Srinivasu K.
Last position:
Atruvia
Project: Tax Exemption Order Application
The client has an existing application for creating and maintaining tax exemption orders for end customers; design and implementation of a comparable application for internal employees.
- Design and implementation of microservices and the UI for the business area "tax exemption orders" using Domain Driven Design as well as Spring Boot and Angular.
- Implementation of reactive, non-reactive, and asynchronous APIs (Spring REST, WebFlux, GraphQL).
- Development of the Angular application, including state management using Signals, RxJS Observables, and subscriptions.
- Securing the API and the application using OAuth2, JWT, and OpenID Connect.
- Configuration and setup of CI/CD pipelines with Jenkins.
- Collaboration with cross-functional teams and conducting code reviews.
Environment: Java, Spring Boot, Angular 18 & 19 (standalone, signals), RxJs, Bootstrap CSS, Vitesting, OpenShift, Istio, microservices, Kafka, Dynatrace, Jenkins, GitLab, Graylog, Sonar, Oauth2, OracleDB
Discover over 15,000 top freelancers
Statistics of experts using Graylog
Aggregated from the professional profiles of matched freelancers.
Experience
19 years
Position duration
1.9 years
Positions per freelancer
14
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Banking and Finance, Telecommunication
Certification focus areas
Information Technology, Product Development, Project Management
Bachelor's degree or higher
88%
Master's degree or higher
40%
Doctorate
8%
Certifications per freelancer
3
Most common languages
German, English, Russian
Speak two or more languages
94%
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 Graylog
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.
Graylog 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 (48%)
- Manufacturing (42%)
- Insurance (39%)
- Retail (39%)
- Automotive (36%)
- Government and Administration (36%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Graylog at a glance
Graylog is a centralized log management platform for collecting, parsing, searching and analyzing machine data. It helps teams turn events from servers, applications, networks and cloud services into searchable operational and security information. Graylog Open supports core observability workflows, while Graylog Enterprise adds capabilities for larger governance and security needs.
Core architecture
Graylog receives messages through inputs, processes them with extractors or pipelines, and stores searchable data in an indexed backend. Strong specialists understand streams, fields, retention, index sets, parsing rules and access controls. They also work with the Graylog web interface, REST API and deployment settings across Linux and container environments.
Common use cases
- Centralize application, infrastructure and network logs
- Create dashboards for service health and operational review
- Detect suspicious activity and support incident investigation
- Route alerts to email, chat or ticketing workflows
- Apply retention and access policies to sensitive log data
Graylog can support observability, security operations, compliance evidence and troubleshooting without forcing every team into the same monitoring model.
Ecosystem and tooling
Graylog projects often connect syslog, GELF, Beats, fluent collectors and cloud services. Specialists may also configure Elasticsearch or OpenSearch-compatible storage, message queues, Docker, Kubernetes, Terraform and configuration management. Knowledge of Linux, networking, JSON, regular expressions and API integration is especially useful when sources are inconsistent.
When to bring in expertise
Companies usually need freelance support when logs are scattered across environments, searches are slow, alerts create noise or a migration needs careful planning. A specialist can design the data model, normalize fields, improve pipelines, set retention, secure access and document operating procedures. In Germany, remote delivery can work well when access, escalation paths and German-language stakeholders are clearly defined; on-site workshops may help with regulated or complex environments.
What strong specialists deliver
The best professionals begin with the questions the logs must answer rather than collecting everything without structure. They validate parsing with real events, define useful fields, separate operational and security views, and test alerts against expected behavior. They also explain storage trade-offs, protect sensitive data, automate repeatable configuration and leave clear runbooks for the team that will operate Graylog after handover.
Frequently asked questions
What clients ask us most about Graylog — answered in short.
Graylog is used to collect, normalize, search and analyze logs from applications, servers, networks and cloud services. Companies use it for troubleshooting, operational dashboards, security investigations, alerting and audit support.
Graylog provides a focused log management experience with structured pipelines, streams, dashboards and alerting. Splunk and the Elastic Stack may offer broader analytics or ecosystem depth, so the right choice depends on data volume, existing tools, governance needs and the skills already available.
A strong Graylog specialist usually understands Linux, syslog, networking, JSON, regular expressions and REST APIs. Experience with Elasticsearch or OpenSearch-compatible storage, Docker, Kubernetes, cloud logging and security operations can be important for complex environments.
The required depth depends on the assignment. A small input or dashboard change can suit a specialist familiar with Graylog Open, while migrations, retention design, pipeline governance and security monitoring require proven experience with production logging systems.
Yes, many Graylog tasks can be delivered remotely through controlled access, documented requirements and scheduled technical sessions. On-site collaboration may be useful for network discovery, regulated environments or workshops with German-speaking operational teams.
Ask how the Graylog expert would model fields, handle malformed events, control retention and reduce alert noise. Request examples of clear dashboards, tested pipelines, access design and operational documentation rather than judging only by interface familiarity.
Graylog can cover centralized logging, search, alerting and parts of security operations, but it is not automatically a replacement for metrics, tracing, endpoint protection or a full SIEM. A specialist should map the required signals and integrations before defining its role.
Graylog Open provides the open offering for core log management, while Graylog Enterprise adds commercial capabilities and support options. Professionals should clarify the edition, deployment model, integrations and governance requirements before estimating the work.
The average hourly rate of freelancers in Germany who have used Graylog in their recent projects is 90 €, which corresponds to a daily rate of about 717 € based on an 8-hour working day.
Of the freelancers in Germany who have used Graylog in their recent projects, 88% hold at least a Bachelor's degree, 40% hold at least a Master's degree, and 8% hold a doctorate.
On average, freelancers in Germany who have used Graylog in their recent projects have 19 years of professional experience, with a single engagement typically lasting around 1.9 years.
The most common languages among freelancers in Germany who have used Graylog in their recent projects are German (97%), English (97%), and Russian (18%).
The most common industries among freelancers in Germany who have used Graylog in their recent projects are Information Technology (100%), Banking and Finance (67%), and Telecommunication (48%).
The most common business areas among freelancers in Germany who have used Graylog in their recent projects are Information Technology (100%), Product Development (79%), and Quality Assurance (64%).
Main locations of FRATCH Experts, who have recently used Graylog
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 
Frankfurt Request a free demo
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Philipp Thomaschewski
FRATCH CEO
