Access Control List Experts in Germany
for precise permissions, matched with vetted freelancersHire experts who design permission models, configure POSIX and Windows ACLs, and secure cloud or network resources. Get fast, precise matching with vetted, available freelancers who can support remote or on-site delivery in Germany.
Meet FRATCH Experts in Germany, who have recently used Access Control List
Peter V.
Last position:
IT Administrator at SEAT Deutschland
- Creating concepts and architecture for domain integration (SEAT into the VW structure)
- Domain trusts and administration
- Operation and administration of Windows 2022/ 2025 servers and domains
- Domain restructuring
- GPO and SG editing and migration
- DNS restructuring and migration
Technologies: Windows 2022, Active Directory, ADFS, AD Azure Connect, DHCP, DNS, GPO, VMWare vSphere, Hyper-V, Powershell, Jira, MS Office 365,), SCCM, VSAN Fileservices, Approximately 800 servers, 400 users
Vili D.
Last position:
Technical Lead, Data Engineer at Mercedes-Benz Consulting
Optimized the data architecture (Medallion) to better decouple processing steps and improve transparency and reproducibility
Ensured the technical quality of data processing in Databricks by introducing schema enforcement, data quality checks, and a structured data architecture
Pipeline orchestration with Azure Data Factory
Improved and automated the development and deployment process by integrating Git and GitHub Actions
Technical leadership of the Data Engineering team (3 employees)
Led workshops to optimize and stabilize the data platform and development process
Collected and prioritized new requests and maintained the product backlog
Technologies: Microsoft Azure (Data Lake, Data Factory), Databricks, Apache Spark (PySpark), Python, SQL, Git, Confluence, Power BI, Power Apps, Dataverse, MS Sharepoint, Mural
Mahmoud Q.
Last position:
Information Security & GRC Expert at GLG (Gerson Lehrman Group)
As a Council Member at GLG (Gerson Lehrman Group), the world’s leading expert network, I provide organizations, investment firms, and consulting companies with expert discussions on demand – wherever specialized knowledge in information security, IT governance, and regulatory compliance is needed.
My assessments are based on many years of practical experience in highly regulated industries: from building and implementing information security management systems (ISMS according to ISO 27001), IT risk and vulnerability management, and business continuity (ISO 22301) to the practical implementation of European regulations such as DORA, NIS2, BAIT, and the Cyber Resilience Act (CRA).
The cooperation is project- and discussion-based. I provide decision-makers with a practical perspective gained from real-world experience on cyber risks, security governance, and operational resilience – exactly when it is needed.
Alois R.
Last position:
Senior Fullstack Developer at brandung GmbH
- Opt-in RAG extension over tenant-owned data sources (SharePoint, Confluence) on existing multi-tenant enterprise AI platform
- Architecture: ADRs, solution evaluations, permission strategy, cost modeling
- End-to-end SharePoint and Confluence connectors: OAuth consent flows, token refresh, metadata sync, search integration
- Permission resolution: ACL indexing at ingestion and query-time verification (document-level security)
- Elasticsearch hybrid search (semantic + keyword) with RRF scoring
- RAG chat with context injection and source citations
- Stack: Elastic Cloud, Elasticsearch, Docker, Northflank, Next.js, React, TypeScript, Prisma, Microsoft Graph API, Atlassian REST API, OAuth 2.0
Madhurima Y.
Last position:
ServiceNow Developer at Globant
- Configured Topics, Microsites into rich content portal widgets, Content Library, landing pages and automated client portal data sync, reducing manual effort by 80% and elevating self-service engagement.
- Architected optimal display across devices and varying resolutions to enhance user accessibility and experience.
- Set up and customized Azure VM integration by utilizing Catalog Items, PowerShell scripting and workflow orchestration.
- Analyzed and translated business requirements into scalable solutions, leveraging ServiceNow scripting to enhance platform functionality and elevate user experience.
Key ServiceNow Skills: Service Portal, Widget Development, Catalog Items, PowerShell Scripting, Workflow Orchestration, Content Management.
Reza S.
Last position:
DevOps and Cloud Engineer at Rhomberg Sersa Rail Group
- Migration of backups and complete workloads to AWS and Azure, including setup and management of AKS & EKS clusters.
- Automation with Terraform & ArgoCD, CI/CD pipelines implemented with GitLab.
- System monitoring on OpenShift 4 (on-premise) with Grafana & Prometheus, use of CloudWatch and X-Ray for analysis and logging.
- Building and maintaining secure network infrastructures (VPCs, SGs, WAF, ACLs), integration of Azure Log Analytics.
- Close collaboration with infrastructure and development teams, maintenance of technical documentation with Confluence, ticket handling via Jira, and promoting cloud knowledge within the company.
Alexander K.
Last position:
Senior Fullstack Developer at Deutsche Vermögensberatung AG (DVAG)
- Further development and maintenance of a complex sales platform with a focus on digital closing processes, customer portal interactions, and document generation for financial and insurance products
- Development and maintenance of microservices with Spring Boot 3 and Kotlin
- Frontend development with Angular 20 for displaying products, applications, and documents
- Execution of end-to-end tests with Playwright and integration tests with WireMock
- Creation and optimization of Quartz jobs and CronJobs
- Refactoring of the security configuration in a multi-realm Keycloak setup with a custom filter chain, permission evaluator, and factory routing
- Creation of dynamic emails with Thymeleaf
- Extensive error analysis with Application Insights, Log Analytics, and direct SQL debugging
- Introduction of a dynamically controlled security architecture with flexible token handling depending on path and realm
- Stabilization and clear structuring of the closing process for complex product models
- Significantly improved maintainability and readability of the code through modular refactorings
- Higher test stability and depth through combined use of Playwright, WireMock, and integration tests
- Targeted performance optimization through analysis of Hibernate statistics, query tuning, and use of SQL execution plans
- Technologies used: Java 21, Kotlin, Spring Boot 3, Angular, TypeScript, REST API, JSON, Kubernetes, Docker, PostgreSQL, Liquibase, Keycloak, OAuth2, GitHub Actions, Testcontainers, Azure Application Insights, Thymeleaf, Tilt, Microsoft SQL Server
Ivan G.
Last position:
Technical Lead at Porsche Digital GmbH
- Contributed to the design of the new financial services integration layer and moderated the architectural discussions
- Oversaw the security concept and approval of the application
- Prepared infrastructure setup and best practices for the Kotlin backend
Can K.
Last position:
DevOps Specialist at Eviden Germany GmbH
Manage the development release and update process for a digitized nationwide trade register project "AuRegis".
Support software in Kubernetes/OpenShift environments, configure management with Kustomize, and implement CI/CD pipelines using Jenkins/GitLab, SonarQube, ArgoCD, and Azure.
Oversee system release of microservice architecture.
Build the CI/CD stack from scratch with GitLab CI, integrating integration tests, dependency checks, and security measures.
Automate deployment onto OpenShift using Kustomize.
Set up infrastructure components for development, code review, and code quality analysis including SonarQube.
Integrate GitOps tools such as Kustomize and ArgoCD, using both Azure and private cloud for sensitive data handling.
Develop Python scripts in Jenkins for cryptostore configuration and system packaging of products and microservices into deployable units.
Automate delivery to customers and deployment on test systems.
Create Kustomize manifests for microservices and develop the related automation, treating documentation as code for clarity and reproducibility.
Serve as technical advisor for the project's first go-live and oversee further deployments as technical rollout manager.
Marcus W.
Last position:
Administrator, DevOps at KZVB
- Planned and implemented new network infrastructure (VLAN, LACP, DMZ, structured cabling)
- Migrated from VMware to KVM using Oracle Linux Virtualization Manager (OLVM), including CPU pinning
- Hardened the entire environment using SELinux (KVM hosts, container hosts, database servers)
- Configured and operated the virtualization platform with OLVM and Ansible-based provisioning
- Containerized and redeployed critical services: WordPress, Jenkins, PostgreSQL, MariaDB, Subversion with Apache + AD integration
- Developed Ansible playbooks for automated deployment and configuration management
- Integrated Foreman for repository and security management in the DMZ
- Produced technical documentation in Markdown; organized in Bookstack
- Coordinated with external vendors (e.g. HPE) for hardware installation and setup
- Delivered all contributions documented and reproducible in Markdown
Robin W.
Last position:
Developer at agentic-engineer.online
agentic-engineer.online is my publicly testable live demo and at the same time the platform where I show my work. Originally created as a recruitment trial task, I have since continued to run it as my own demo, learning, and product project — on a Hetzner VPS behind a Cloudflare tunnel, through a multi-stage AI-orchestrated deploy pipeline with snapshot rollback. If a deploy step breaks, the system falls back to the last clean snapshot, the script is adjusted, the test repeated — empirical, test-driven, without hand tuning.
- Technically behind it: Python and FastAPI, an OpenRouter model cascade, SQLite persistence, and Cloudflare edge tuning.
- I am the developer and the strictest customer of my own AI work in one person — what started as a prototype has become a tool I use every day and against which I test my own products.
Konstantinos M.
Last position:
IT-Fly Specialist – Global Rollout at Lufthansa Group
Plan & Prepare (Site Design & Readiness): Inventory & Design: Dell PowerEdge R-Series, Aruba Switches (L2/L3), Notebooks/Peripherals; Serial Numbers/Asset Tags, IPv4/IPv6 Addressing, VLAN/DHCP/DNS Plan
Runbooks/MOPs: Site Rollout Runbook, Backout Strategy (<15–30 min), Risk Register, Communication Matrix; Approvals via CAB/Change
Images/Packages: Golden Image (Win10/11), Driver Packs, BIOS/UEFI Baseline; O365/Teams/OneDrive-KFM; BitLocker Policies; MECM/SCCM, Intune/Autopilot, MDT/WinPE
Logistics: Shipping/Customs Clearance, RMA/DOA, On-Site Spares; Tools (Barcode Scanners, Label Printers), "Go-Bag" (Cables, SFPs, Console Cables)
Deliver (On-Site Implementation): Endpoints: Swap & Migration (USMT/OneDrive KFM), Peripherals (ATB/BT Printers, Scanners, Boarding Gate HW); Domain Join, Compliance Checks, O365 Activation, Printers/Queues, Network Drives
Acceptance: Functional Tests for DCS/CUTE/CUPPS/CUSS Stations, Ticketing/Check-in Workflows, Boarding Gates
Servers (R-Series): Rack & Stack, Cabling (PDU Redundancy, Fiber/Copper), Labeling/Nomenclature; Firmware/RAID (PERC), Lifecycle Controller, iDRAC Network; Windows Server 2022/2025 + CIS/BSI Hardening; Agents (Backup/AV/EDR/Monitoring), Time Service/NTP Auth, Syslog/SNMPv3
Network (Aruba): VLANs, LACP Trunks, MSTP Root; Portfast + BPDU-Guard at Edge; QoS (EF/AF); Dual-Stack (v4/v6), DHCP Relay. NAC/802.1X with ClearPass/Radius/TACACS+, Roles + MAB Fallback; Guest Isolation, ACLs (Guest→Mgmt deny). Telemetry: sFlow, SNMPv3, Syslog→SIEM; LLDP→Inventory/CMDB
Airport-Specific: CUTE/CUPPS/CUSS Terminals; DCS/Amadeus/SITA Connectivity; FIDS (read-only); Bag Tag/Boarding Pass Printing; Changes During Off-Peak/Night Windows
Stabilize (Hypercare): First-Day Support, KPI Tracking (Login Times, Ticket Volume, Error Classes), QoS Fine-Tuning
Troubleshooting: Wireshark/iperf, Event Logs, Switch Counters, sFlow Flows; Fast Incident Handling as SPOC
Knowledge Transfer: Short Training Sessions for Station Teams, Mini-Runbooks (Incident/Recovery)
Close (Documentation & Handover): Documentation & CMDB: Final Configs (Switch/Server), Topology/Patch Plans, IP Tables, Serial Number/Asset Lists, Before/After Photos
Acceptance & Sign-off: UAT Protocols, Functional Evidence (Use Cases), Return/Reuse of Old Hardware
Lessons Learned: Risks, Standard Packages, Driver Freeze, "Known Issues"
Interfaces/Communication: Station IT, Airport IT, SOC/NOC, Ground Ops/Ramp/Check-in, Providers (SITA/Amadeus). ITSM: ServiceNow (Inc/Req/Change/KB), Handover to BAU
Charles J.
Last position:
Network Architect at RedGlobal GmbH
- Configuration of Dell switches, routers, and access points.
- Troubleshooting and issue resolution.
- Extreme, Cisco and Dell switches and routers environment, Extreme A3 NAC, Extreme CloudIQ.
Majid A.
Last position:
Lead Consultant at Infosys
- Network automation
- CI/CD and Docker environment
- Python Nornir for network automation
- pyATS for monitoring and test case automation
- Network Access Control (Radius) and Device Admin Access Control (TACACS) with AAA and Cisco ISE with Cisco/HP/Aruba Devices
- Cisco ISE Clusters (2/4/8 nodes) configuration
- Cisco ISE Authentication and Authorization configuration
- Cisco/HP/Aruba Switch/WLC Tacacs/dot1x/Radius configuration
- Cisco ISE automation with Restconf and Python
Zakaria A.
Last position:
Vice President Technology EMEA at Aparavi Software Europe GmbH
- Always looking for solutions to problems and finding ways to tackle business challenges
- Leading and managing large multi-disciplinary teams (product development, project management, engineering, operations, QA, solution management, customer success)
- Developing and executing innovation and digitalization strategies for complex transformation projects
- Acting as Information Security Officer, planning, conducting, and successfully completing all ISO 27001:2022 standard audits and continuously ensuring compliance
- Leading and coaching managers across the organization
- Representing the company at industry events and coordinating external partnerships
- Providing technical support to the Aparavi sales team
- Working with account managers to lead and grow enterprise customers
- Collaborating with technical and non-technical customer departments to manage and meet expectations (e.g., C-level, finance, IT services, data security and works council)
- Leading technical integration and coordinating seamless solution implementation
- Hands-on development and management of cloud, AI, and SaaS solutions to meet demanding customer expectations
- Promoting agile, DevOps-based methods and organizational structures for innovation and sustainable growth
- Continuously analyzing and solving technical and business challenges to boost company success
Discover over 15,000 top freelancers
Statistics of experts using Access Control List
Aggregated from the professional profiles of matched freelancers.
Experience
18 years
Position duration
1.9 years
Positions per freelancer
12
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Banking and Finance, Manufacturing
Certification focus areas
Information Technology, Product Development, Legal
Bachelor's degree or higher
95%
Master's degree or higher
48%
Doctorate
10%
Certifications per freelancer
3
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 Access Control List
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.
Access Control List 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 (96%)
- Banking and Finance (57%)
- Manufacturing (39%)
- Automotive (36%)
- Retail (36%)
- Telecommunication (32%)
- Insurance (29%)
- Professional Services (29%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
What ACLs control
An Access Control List, commonly called an ACL, defines who or what can access a resource and which actions are allowed. Entries can grant or deny permissions for users, groups, services, addresses or applications. ACLs protect files, folders, APIs, cloud objects, network segments and other shared resources.
Permission models
Access Control Lists provide fine-grained rules when a simple owner-and-group model is not enough. File-system ACLs often distinguish read, write and execute access, while network ACLs filter traffic by source, destination, protocol and port. Specialists also assess inheritance, rule order, default permissions and deny behavior before changes reach production.
Ecosystem and tooling
Professionals work across operating systems, identity services, cloud platforms and network equipment. Relevant skills may include:
- POSIX ACLs, Linux file permissions and NFS
- Windows ACLs, Active Directory and NTFS security descriptors
- Cloud object policies, security groups and firewall rules
- Network ACLs, routers, switches and infrastructure as code
They use command-line tools, policy consoles, configuration management and audit logs to review and maintain access rules.
When companies need specialists
Companies bring in freelance ACL expertise during migrations, security reviews and identity projects. Specialists can replace broad permissions with least-privilege rules, investigate unexpected access, or document a model that teams can operate safely. In Germany, this support can be useful for distributed teams that need clear handovers between remote and on-site stakeholders.
- Review inherited or conflicting permissions
- Map access rules to business roles
- Correct exposure in file, cloud or network resources
- Automate repeatable permission changes
Delivery and collaboration
An ACL project should start with an inventory of resources, identities and required actions. Strong professionals define a test plan, make changes in controlled stages and provide rollback steps. Remote work is often practical when access is securely provisioned and documentation is precise; on-site sessions may help with complex infrastructure or operational handovers in Germany.
What good expertise looks like
The best professionals connect technical rules with business ownership and risk. They explain why a permission exists, identify shadow access paths and test both allowed and blocked actions. They understand that POSIX ACLs, Windows ACLs, network ACLs and cloud policies behave differently, and they avoid treating one rule set as a universal solution. Look for evidence of clean documentation, careful change control, useful audit trails and clear communication with security, infrastructure and application teams.
Frequently asked questions
Everything clients usually want to know about Access Control List, in one place.
An Access Control List defines which identities or systems may access a resource and which actions they can perform. Companies use ACLs for files, folders, cloud objects, network traffic, APIs and application resources.
An ACL attaches permissions directly to a resource, which can provide detailed control but may become difficult to manage at scale. Role-based access control assigns permissions through roles, making it easier to manage consistent access across many users. The right choice depends on resource structure, identity processes and operational needs.
A strong Access Control List specialist should understand identity and access management, Linux and Windows permissions, Active Directory, cloud security and network filtering. Knowledge of automation, infrastructure as code, logging and security testing is also valuable.
The required experience depends on scope and risk rather than a fixed duration. A focused permission review may need a specialist who can inspect rules and document findings, while a migration or multi-environment redesign calls for experience with inheritance, identity dependencies, testing and rollback planning.
Yes. ACLs can often be reviewed and changed remotely through controlled access, screen sharing and configuration repositories. On-site collaboration may still help when the work involves physical network equipment, restricted environments or operational handovers in Germany.
POSIX ACLs extend the standard Unix owner, group and other permission model with additional entries and defaults. Windows ACLs use security descriptors, access control entries and inheritance tied closely to NTFS and Active Directory. A specialist should not assume that rules or tools transfer directly between the two systems.
Ask which traffic is required, where the rule will be applied, how rule order affects the result and how blocked traffic will be diagnosed. A capable network ACL specialist should also define testing, monitoring and rollback procedures before changing production filters.
Look for a complete resource and identity inventory, documented business owners, least-privilege decisions and tests for both permitted and denied actions. High-quality Access Control List work also leaves clear change records, avoids unexplained broad access and gives operators practical guidance for future reviews.
The average hourly rate of freelancers in Germany who have used Access Control List in their recent projects is 89 €, which corresponds to a daily rate of about 713 € based on an 8-hour working day.
Of the freelancers in Germany who have used Access Control List in their recent projects, 95% hold at least a Bachelor's degree, 48% hold at least a Master's degree, and 10% hold a doctorate.
On average, freelancers in Germany who have used Access Control List in their recent projects have 18 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 Access Control List in their recent projects are German (100%), English (100%), and French (11%).
The most common industries among freelancers in Germany who have used Access Control List in their recent projects are Information Technology (96%), Banking and Finance (57%), and Manufacturing (39%).
The most common business areas among freelancers in Germany who have used Access Control List in their recent projects are Information Technology (96%), Product Development (57%), and Project Management (57%).
Main locations of FRATCH Experts, who have recently used Access Control List
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
