CompTIA Security+

Industry: digital sovereignty, public sector

Responsibilities:

• Project coordination (teams: consulting, development, testing, deployment/operations)

Products and standards:

• Jira, Confluence, Asana, Miro, Mural
• Open Source, Keycloak, Open Xchange, ownCloud

• Responsibility, also as rollout manager, for the successful transition of a basic OZG platform into the client's standard operations by planning and implementing measures along Service Transition and Service Operation according to ITIL, including workshops in a SAFe environment with more than 40 operational stakeholders
• Building and maintaining cross-organizational stakeholder relationships by organizing and running various information sessions on technical configurations and user guides (platform and EfA services)
• Designing and improving various operational and project documents such as the ITIL operations manual, OLA, SLA, service support concept and rollout instructions
• Modeling project-based processes according to BPMN 2.0, EPK and UML related to OZG services with the goal of integrating them into the operational e-government process landscape (SOA)
• Coordinating operational stakeholders and KPI reporting to the project management team using agile methods according to SAFe
• Tech stack / tools: Microsoft 365 (SharePoint, OneNote, Outlook, Teams), Skype for Business, Cisco Webex, ADONIS, MindManager, Jira, Confluence

• 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.

• 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

• Network elements, network, operational and operator-related systems
• Supporting around 20 different products (managed agile)
• Requirements analysis and management (functional and non-functional)
• Test concept and planning (scope, test phases, effort, schedule, resources, organization, etc.)
• Aligning approach with clients and service providers
• Managing and assisting in creation of test cases for system, integration and end-to-end tests
• Guiding and supporting test execution
• Defect management and planning bug fixes with external providers
• Preparing and facilitating workshops
• Regular reporting and creating automated test reports
• Further development of agile testing methodology and configuration of supporting tools
• Conceptual support in developing a quality seal for rating product and service quality of internal and external providers
• Requirements engineering based on ISO/IEC 25010, Scrum, SaFE
• BMC Remedy, Atlassian Confluence, Atlassian Jira (including plugins Xray, Structure), Microsoft Office (incl. Visio), Obsidian, doxis document management system, Gitlab, Obsidian

• 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

• providing technical assistance to the sales force during sales calls
• providing pre-sales technical support
• providing technical support during first time installation of new AudioCodes products together with partner/ end-customer
• pre-sales technical interface to the channel/partner and managing of technical knowledge transfer to the partners
• giving customer presentations and hands-on product demonstrations (e.g., AudioCodes Live Cloud, Express, OVOC)
• providing product training to customers, prospects and sales during the pre-sales phase mainly AudioCodes endpoints like e.g., IP Phones, MTRs
• leading RFPs/RFI technical responses
• providing technical assistance to marketing for regional events (e.g., seminars, roadshows)
• mainly focused on AudioCodes IP Phones (Generic SIP/Native Teams), AudioCodes MTRs, AudioCodes Collaboration Bars, Jabra endpoints, Sennheiser/Epos endpoints
• management of endpoints like above via AudioCodes One Voice Operation Center and maintaining of this environment for customer workshops/ calls
• management of AudioCodes IP Phones via Microsoft Endpoint Manager/ Intune and maintaining of this environment for customer workshops/ calls
• building of automated cloud workflows (Power Automate) for internal AudioCodes DACH processes
• trusted advisor for Microsoft products which interfere with AudioCodes products for DACH region

• Technically leading an international team on Aurix 2nd Generation (TC3XX) multicore AUTOSAR architecture, supporting various OEM programs.
• Responsible for customer security requirements analysis, asset identification, and deriving TARA and security concepts at the system level.
• Conducted system and software/hardware vulnerability analysis and implemented cybersecurity solutions using Crypto, HSM, MPU, BSW, OS, and ISO 21434-compliant stacks provided by Vector.
• Led architecture discussions with OEMs and suppliers to align cybersecurity strategies with vehicle platforms.
• Contributed to the design and integration and testing of SecOC, UDS authentication and wireless interfaces like WiFi, Bluetooth, V2X ensuring secure and seamless vehicle access.
• Addressed security challenges such as relay attacks, replay attacks, and credential spoofing through advanced threat modeling and mitigation strategies.

• AWS
• Genedata Profiler
• Data Lake
• APIs
• Rstudio
• GitLab
• Python
• R
• Data acquisition, integration, and simulation
• Multiplex immunofluorescence
• Copy-number variation calling
• HLA typing and loss-of-heterozygosity analysis
• RNA expression analysis

• Delivered AWS-authorized content through AAI program
• Facilitated group and 1-on-1 mentorship sessions
• Coached non-technical learners into cloud career paths
• Created learning materials aligned with AWS Skill Builder and AWS Academy labs

• CFO of the company
• Consulting in processes and process management
• Consulting in information security ISO 27001
• Consulting Scrum / Agile Management
• Project management for IT projects, especially doctors' practices
• Digitalization projects
• Data protection / data security training

• Ensure implementation of local safety regulations and Shell HSE
• Daily review of Shell work permits on site and LMR lists for contractors
• Carry out safety briefings and training on working at height and confined spaces
• Conduct investigations into near misses and accidents
• Ensure the implementation of the project HSE standards
• Perform regular safety inspections for the site to take preventive measures
• Investigate unsafe conditions and life-saving rules and define a new corrective action plan
• Publish and deliver toolbox presentations
• Coordinate security and fire watchdogs
• Reporting/documentation and creation of new prevention plans for improvement points
• Support from TÜV for regular audits to check ATEX areas and implement new protective measures

• 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)

• Developed automated ETL pipelines with AWS Glue and Athena to ensure consistent data quality and governance requirements
• Implemented validation, anonymization, and encryption measures for data in compliance with GDPR
• Optimized cloud costs by introducing FinOps practices and increased transparency for business units
• Monitored performance, performed root cause analyses, and ensured adherence to SLAs
• Supported data and solution architects in building scalable data models for ML and analytics scenarios