SIEM Experts in Cologne
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Meet FRATCH Experts in Cologne, who have recently used SIEM
Nikolaus B.
Last position:
Information Security, IS-Governance & Crossfunctional Governance at Zürich Beteiligungs-AG (Deutschland)
- Conducted security assessments for supplier qualification, business unit onboarding, and ongoing reviews of service providers and partners (Ongoing Assurance).
- Assessed technical and organizational measures (TOMs) against GDPR and information security requirements.
- Handled security reviews and approval processes in the Global Approval Navigator (OneTrust).
- Advised business units and IT on information security, security requirements, and risk-appropriate measures.
- Supported the development of SOC/SIEM processes and tools as part of the ISMS in line with ISO/IEC 27001.
- Analyzed cyber threats and coordinated security objectives and measures to address Security Findings with the SOC team.
- Monitored and assessed current security advisories and security-related metrics (KPIs).
- Reviewed, assessed risks, and approved exception requests (Security Exceptions).
- Independently analyzed and handled Security Events and supported the handling of security incidents.
- Planned and supported awareness initiatives to strengthen security awareness.
- Created, implemented, and reviewed information security policies and standards.
- Conducted protection needs analyses and gap assessments to identify security gaps and risk deviations.
- Defined and reviewed technical and organizational risk treatment measures.
- Advised on Third Party Governance with consideration of DORA, ISO/IEC 27001, ISO/IEC 27005, ISO/IEC 42001, and BCM in line with ISO 22301.
Pierre G.
Last position:
Ansible Automation, Windows Third Level Support at DB InfraGO AG
- PRISMA project
- Ansible automation
- Windows third-level support for Windows NT, Windows 2000, Windows 2013, Windows 2016, Windows 2019
Halil O.
Last position:
Senior Cloud Operations & DevSecOps Engineer (Azure / Terraform / CI-CD) at KfW Bankengruppe
Regulated environment within a German banking group (approx. 8,500 employees, hybrid cloud strategy).
Responsible for operating, provisioning, and continuously securing business-critical platforms – including a GenAI chat application, a big data/AI platform, and data science workspaces based on Azure Virtual Desktops and VMs. Ownership of Azure DevOps projects for ShaiHulud and React2Shell, as well as BSI alerts – Security Operations improvements across the SDLC.
Deployment responsibility for the GenAI chat application, big data/AI platform (BDAI), and data science workspaces (AVD/VM-based) in the respective landing zones.
Deployment & release management: end-to-end responsibility for deploying portal and service applications across multiple Azure landing zones, including technical approvals, compliance with development team deployment guidelines, and ensuring ITIL-based change and release processes via ServiceNow.
Azure landing zones & network architecture: design, provisioning, and operation of Azure landing zones for 3-tier web applications with enhanced network segmentation, VNet peering, hub-and-spoke architectures, private endpoints, and firewall integration across separate subscriptions and tenants.
Azure DevOps governance & operations: ownership of the Azure DevOps organization, including projects, repositories, and CI/CD pipelines; implementation of governance requirements such as branch policies, approval gates, permission models, and audit-ready operating structures.
Infrastructure as Code (Terraform): design, implementation, and operation of a modular Terraform architecture for standardized cloud infrastructure deployment, including state management, provider versioning, reusability, and policy-as-code approaches.
CI/CD pipeline engineering: design, operation, and optimization of complex YAML-based CI/CD pipelines with multi-stage deployments, template standardization, self-hosted agents, integrated secret management, and automated quality and security checks.
Git migration & platform consolidation: planning and execution of repository and pipeline migration from Azure DevOps to GitLab CI/CD, including automated scripts, full Git history transfer, pipeline porting, and platform consolidation.
Container & platform operations (AKS): operation and security assessment of containerized workloads on Azure Kubernetes Service, centralization of on-premises container registries for ACR.
OpenShift (OCP) security reviews: security assessment of code baselines, build pipelines, and deployment processes for on-premises OpenShift clusters with critical applications, and derivation of specific hardening recommendations.
Shift-left security & DevSecOps transformation: introduction of a company-wide shift-left approach for early security integration in development and deployment processes, enabling developers to perform self-led security checks and sustainably reduce vulnerabilities before production (IDE integrations, pre-commit hooks, local scanners).
Software supply chain security: analysis and mitigation of supply chain risks in NPM- and Yarn-based applications through dependency audits, CI/CD pipeline hardening, token rotation, and restriction of risky build and lifecycle mechanisms.
Frontend & framework security (React / Next.js): security assessment and coordination of critical vulnerability remediation across platform applications and web frameworks, including coordination and complementary technical mitigations with all teams following BSI alerts.
Software composition analysis (SCA): introduction and operation of automated vulnerability scans for container images, pipelines/artifacts, and third-party dependencies, including SBOM exports within CI/CD pipelines.
SAST/DAST integration: design and piloting of static and dynamic application security tests in close collaboration with security architecture and development teams, for continuous improvement of code and runtime security, and establishing operational acceptance tests.
Artifact & registry consolidation: analysis and consolidation of all package and container repositories for service applications and AKS workloads, aiming for a centralized, secured registry strategy with centralized vulnerability scanning and governance.
Dependency-Track & SBOM strategy: advising the compliance board on introducing a central SBOM and vulnerability management platform to increase enterprise-wide dependency transparency and accelerate CVE response capability.
CI/CD pipeline hardening: security analysis and cleanup of the existing pipeline landscape by removing unused pipelines, improving secrets hygiene, implementing least-privilege principles, and isolating build agent environments.
Azure Web Application Firewall (WAF) optimization: analysis and tuning of existing Azure WAF rules (OWASP Top 10 Core Rule Set, DSR/SDC, custom rules) to defend against known vulnerabilities and exploit patterns, including reducing false positives and improving threat detection.
Documentation & stakeholder communication: creating and maintaining technical documentation, runbooks, and architecture overviews in Jira and Confluence, as well as active knowledge transfer between operations, development, security, and compliance stakeholders.
Valeri M.
Last position:
Associate Partner - Information Security Consulting at Insentis GmbH
- Improvement of the Information Security Management System (ISMS) based on ISO 27001, NIS2, DORA, B3S, TISAX and BSI IT Baseline Protection
- Conducting comprehensive gap analyses to identify gaps and derive action plans according to the above standards and regulations; management and KPIs
- Data Loss Prevention strategy and implementation using MS Purview
- Vulnerability and patch management, security monitoring
- Risk analysis and threat modeling using the STRIDE methodology
- Development of vendor risk assessments, implementation of risk classifications, conducting supplier assessments and implementing technical monitoring solutions (e.g. Security ScoreCard)
- Securing cloud environments (AWS and Azure); expertise in CSPM/CNAPP (Wiz), cloud migration, secure CI/CD pipelines, container security and best practices in AWS, Azure and Office 365
- Application security: penetration testing, DevSecOps, OWASP, pre-commit hooks, key and secret management, IDE plugins, static source code analysis, dependency checks, container scanning, vulnerability management, CIS benchmarks and compliance
- Security assessment and hardening according to CIS benchmarks and cloud conformity in AWS, Office 365 and Azure
Thomas U.
Last position:
Senior Consultant / PM Infrastructure Services & Workplace Migration at Freelance
- All Windows clients are managed in a hybrid, central AD
- Client standardization
- Implementation of information security policy requirements
- Development of new infrastructure services delivered as a managed service by a new provider
- New IT platform is a central and secure directory service
- M365 Azure AD
- MS terminal services
- Zscaler
- M365 cloud for workplace management
- PaaS / SaaS is procured through a new provider
Sirak D.
Last position:
Cyber Security Support Engineer at Log(N) Pacific
- Implementing secure cloud configurations with Azure Private Link, Network Security Groups, Microsoft Defender for Cloud, and Azure Regulatory Compliance for NIST 800-53, PCI DSS, and HIPAA/HITRUST, resulting in an 88% reduction in security incidents over the same period.
- Troubleshooting and supporting Microsoft Azure services, including Microsoft Sentinel (SIEM), Virtual Machines, Azure Monitor, and Azure Active Directory.
- Developing KQL queries to support the Log Analytics workspace and Microsoft Sentinel, resulting in 1 new SIEM dashboard and 4 workbooks.
Discover over 15,000 top freelancers
Statistics of experts using SIEM
Aggregated from the professional profiles of matched freelancers.
Experience
18 years (Germany: 20 years)
Position duration
1.2 years (Germany: 2 years)
Positions per freelancer
22 (Germany: 15)
Top business areas
Information Technology, Project Management, Quality Assurance
Top industries
Information Technology, Energy, Banking and Finance
Certification focus areas
Information Technology, Audit, Quality Assurance
Bachelor's degree or higher
50% (Germany: 89%)
Certifications per freelancer
17 (Germany: 8)
Most common languages
German, English, Portuguese
Speak two or more languages
100% (Germany: 99%)
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 Cologne 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 Cologne using SIEM
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.
SIEM 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%)
- Energy (67%)
- Banking and Finance (67%)
- Healthcare (67%)
- Insurance (67%)
- Manufacturing (50%)
- Professional Services (50%)
- Government and Administration (50%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Security visibility
SIEM, short for Security Information and Event Management, collects and correlates logs from endpoints, networks, cloud services, identity systems and business applications. It gives security teams a central view of suspicious activity, supports investigations and preserves evidence for audits and incident response.
Core use cases
SIEM specialists help companies turn scattered events into actionable security signals. Typical deliverables include:
- Log collection, parsing and normalization across hybrid environments
- Correlation rules for suspicious access, malware and data exfiltration
- Dashboards, alerts and incident queues for SOC teams
- Retention, reporting and evidence workflows for compliance needs
Tools and integrations
The work often spans Microsoft Sentinel, Splunk, IBM QRadar, Elastic Security and cloud-native logging services. Strong specialists understand collectors, agents, APIs, query languages and threat intelligence feeds. They also connect SIEM data with EDR, SOAR, IAM, firewalls, ticketing systems and vulnerability tools.
When to hire
Companies bring in freelance SIEM expertise during migrations, SOC transitions, detection engineering projects and security reviews. A specialist can reduce noisy alerts, establish useful baselines and document operating procedures when internal teams lack capacity. In Cologne, local experts can support on-site workshops, while remote collaboration works well for configuration, analysis and documentation.
Skills that matter
Effective SIEM professionals combine security analysis with practical data and systems knowledge. Look for experience with event schemas, query design, threat modelling, incident handling and identity telemetry. They should be able to explain why an alert matters, validate it against context and improve the rule without creating new blind spots.
Choosing a specialist
Ask for examples of detection logic, onboarding plans and investigation playbooks rather than a tool name alone. A strong professional can describe data sources, coverage gaps, false-positive handling and escalation paths in clear terms. German or English communication may matter for Cologne-based teams, especially when specialists work with security operations, compliance and infrastructure stakeholders.
Frequently asked questions
Need clarity? These are the questions we hear most often about SIEM.
SIEM is used to collect and correlate security events from systems such as endpoints, identity services, networks and cloud applications. It helps teams detect suspicious behavior, investigate incidents, support response work and produce audit evidence.
Security Information and Event Management focuses on central event collection, correlation, search and detection. SOAR emphasizes workflow automation, while XDR typically combines detection across selected security products; many mature operations use these approaches together.
A strong SIEM specialist usually understands incident response, threat intelligence, identity security, endpoint detection, cloud logging and network telemetry. Query languages, scripting, API integration and compliance reporting are also valuable for production work.
The right level depends on the scope. Security Information and Event Management onboarding for a few data sources may need focused configuration expertise, while a migration, detection redesign or SOC operating model requires deeper experience in architecture, investigations and change management.
SIEM work is often suitable for remote collaboration because specialists can configure collectors, write queries, review alerts and document procedures securely online. On-site sessions in Cologne can still help with workshops, access coordination and close work with local security or infrastructure teams.
SIEM projects commonly involve Microsoft Sentinel, Splunk, IBM QRadar or Elastic Security, alongside cloud and infrastructure logging services. The best choice depends on existing systems, data volume, security processes, required integrations and the team’s operating model.
Ask how the specialist would prioritize data sources, measure detection value and handle false positives. A capable SIEM professional can show clear reasoning, practical investigation steps, maintainable queries and documentation that another team member can use.
Security Information and Event Management projects often involve sensitive logs, strict access controls and coordination across security, infrastructure, compliance and application teams. Freelancers should expect careful onboarding, defined handling rules and a need to communicate technical findings clearly to both specialists and business stakeholders.
The average hourly rate of freelancers in Cologne, Germany who have used SIEM in their recent projects is 125 €, which corresponds to a daily rate of about 998 € based on an 8-hour working day.
Of the freelancers in Cologne, Germany who have used SIEM in their recent projects, 50% hold at least a Bachelor's degree.
On average, freelancers in Cologne, Germany who have used SIEM in their recent projects have 18 years of professional experience, with a single engagement typically lasting around 1.2 years.
The most common languages among freelancers in Cologne, Germany who have used SIEM in their recent projects are German (100%), English (100%), and Portuguese (17%).
The most common industries among freelancers in Cologne, Germany who have used SIEM in their recent projects are Information Technology (100%), Energy (67%), and Banking and Finance (67%).
The most common business areas among freelancers in Cologne, Germany who have used SIEM in their recent projects are Information Technology (100%), Project Management (83%), and Quality Assurance (83%).
Main locations of FRATCH Experts, who have recently used SIEM
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.
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Munich Request a free demo
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Philipp Thomaschewski
FRATCH CEO
