SIEM Experts in Cologne
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Meet FRATCH Experts in Cologne, who have recently used SIEM
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
Nikolaus B.
Last position:
ICT Risk Management and Information Security at B. Metzler seel. Sohn & Co. AG
- Independently develop policies, guidelines, and frameworks for ICT risk management and information security
- Advise business units on ICT risk management and information security
- Further develop the ICT risk management framework that governs the identification, assessment, and control of ICT risks
- Evaluate the Information Security Management System (ISMS) and adjust it for new challenges
- Conduct risk analyses to identify and assess potential ICT risks and information security risks for the Metzler Group
- Advise on defining and implementing measures to reduce risks and improve the resilience of ICT systems
- Advise on ensuring compliance with relevant internal and external regulatory requirements (MaRisk, DORA, BAIT, BSI IT baseline protection, ISMS, ISO 27001, ISO 42001, ISO 27005, BCM ISO 22301)
- Advise on internal and cross-functional projects (SAP DORA compliance, Target2, Section 8a BSI Act)
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: 2.1 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, Project Management
Bachelor's degree or higher
33% (Germany: 90%)
Certifications per freelancer
9 (Germany: 7)
Most common languages
German, English, Portuguese
Speak two or more languages
100% (Germany: 99%)
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 Cologne 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 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 19 Sep 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
What SIEM does
SIEM stands for Security Information and Event Management. It collects logs and security events from many systems, normalizes them, and helps teams spot suspicious patterns early. Companies use it to monitor access, detect threats, support incident response, and keep clearer audit trails.
Typical deliverables
- Log source onboarding and parsing
- Detection rules and correlation logic
- Dashboards, alerts, and watchlists
- Use-case tuning and false-positive reduction
- Incident workflow support
Common ecosystems
SIEM work often centers on platforms such as Splunk Enterprise Security, Microsoft Sentinel, IBM QRadar, and Elastic Security. Strong specialists know how to adapt content to the tool in use, whether the goal is cloud monitoring, endpoint visibility, or compliance reporting. They also understand how data models and normalization affect search quality.
When companies bring in help
Teams usually need freelance SIEM expertise when alert noise is too high, log coverage is incomplete, or a new tool is being rolled out. It also helps during security audits, mergers, cloud migrations, and major rule overhauls. In Cologne, this is common in regulated industries and larger IT environments that need careful coordination with local stakeholders.
What strong specialists know
A good SIEM professional understands log formats, detection logic, query language, and the limits of each data source. They can map business risks to practical use cases and explain why an alert matters. They also document changes clearly, so internal teams can maintain the setup after the project ends.
Skills that make a difference
- Security operations and incident triage
- Log management and event normalization
- Cloud and identity monitoring
- Rule writing, tuning, and validation
- Clear communication with security teams
Frequently asked questions
Need clarity? These are the questions we hear most often about SIEM.
SIEM is used to collect and analyze security logs, then turn them into alerts, dashboards, and investigation trails. It helps teams detect unusual access, policy breaches, and signs of compromise across servers, cloud services, endpoints, and identity systems.
SIEM does log management, but it goes further by correlating events and creating security detections. A plain log tool stores and searches data; SIEM adds rules, alerts, cases, and workflows that support security operations.
A strong SIEM specialist often works in Splunk Enterprise Security, Microsoft Sentinel, IBM QRadar, or Elastic Security. The exact tool matters because query syntax, data models, and alerting features differ. Good specialists adapt quickly to the stack already in place.
A good SIEM freelancer usually brings log parsing, incident response, cloud security, identity monitoring, and basic scripting. Knowledge of Windows, Linux, network traffic, and common security standards also helps because alerts only make sense in context.
Not every SIEM project needs a deep redesign, but production work does need someone who has tuned detections before. Simple log onboarding may be enough for a narrower scope, while platform migrations, detection engineering, and compliance work need broader platform experience.
Most SIEM work can be done remotely because the core tasks are rule writing, log review, and dashboard tuning. On-site time in Cologne can help during access setup, workshops, or sensitive security reviews, but it is often only needed for specific sessions.
Look for SIEM professionals who ask about your log sources, business risks, and current alert pain points before they suggest changes. Strong work shows up as clear detections, fewer false positives, good documentation, and rules that your team can maintain.
Yes, because SIEM brings multiple sources together instead of leaving them in separate tools. EDR and cloud security platforms are useful inputs, but SIEM helps connect identity, endpoint, network, and application signals into one investigation path.
The average hourly rate of freelancers in Cologne, Germany who have used SIEM in their recent projects is 129 €, which corresponds to a daily rate of about 1,036 € based on an 8-hour working day.
Of the freelancers in Cologne, Germany who have used SIEM in their recent projects, 33% 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
