RKRizwan KhanDE

35 projects · since 2007

Enterprise IT in real-world scenarios.

Every publicly documented engagement of Rizwan Khan — with personal scope of responsibility, technical context and clear limits on what is claimed.

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All client projects were carried out independently as a contractor; some engagements ran in parallel.

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Abstract endpoint modernisation with software packages, distribution rings and Windows 11 devices
BGW

Endpoint Management

MECM/SCCM Expert

I support Windows 11 deployment, software distribution, patch management and troubleshooting within the MECM processes.

MECM / SCCMWindows 11PowerShellSoftware Distribution
Case study
Abstract network of resilient, redundantly connected system nodes
Dataport AöR

Virtualisation & Operations

Senior System Engineer

I supported business-critical specialist applications and took migrations through test, change and go-live into data-centre operations.

Windows ServerCitrixPowerShellSQL
Case study
Abstract depiction of converging corporate environments
Volkswagen

Active Directory & Migration

Microsoft Solution Architect

I analysed heterogeneous Microsoft environments and developed integration paths for Active Directory, GPO, Intune and MECM.

Active DirectoryGroup PolicyIntuneMECM
Case study
Abstract global deployment rings with distributed endpoints
BRITA GmbH

Endpoint Management

MECM Consultant

I designed and implemented MECM building blocks for images, drivers, software and cross-site content distribution.

MECMPowerShellWindows 10Content Distribution
Case study
Abstract restored network topology with a protected core
Eurofins

Security & Recovery

Senior System Architect

After a ransomware attack I developed a recovery concept and a controlled migration path to a newly built AD structure.

Active DirectoryPowerShellDNSGroup Policy
Case study
Abstract infrastructure illustration for the Overland Storage / V3 / Sphere 3D / Tandberg Data engagement
Overland Storage / V3 / Sphere 3D / Tandberg Data

Active Directory & Migration

Senior System Engineer

I coordinated the technical EMEA integration of several sites into a new global corporate environment.

Active DirectoryExchangeVMware ESXWindows Server
Case study
Abstract infrastructure illustration for the Klett Verlag engagement
Klett Verlag

Endpoint Management

Senior System Engineer

I combined building an SCCM platform with the subsequent modernisation of Active Directory, file services and Exchange.

SCCMMDTActive DirectoryExchange
Case study
Abstract infrastructure illustration for the Euler Hermes / Allianz engagement
Euler Hermes / Allianz

Leadership

Team Lead

I combined international team coordination with technical responsibility for the SCCM rollout and 3rd-level operations.

SCCMAdminStudioApp-VWSUS
Case study
Abstract infrastructure illustration for the VEM Motors GmbH engagement
VEM Motors GmbH

Endpoint Management

Migration Consultant

I analysed and corrected documented SCCM topology errors and handled permission and reporting tasks.

SCCMSQL Reporting ServicesFile ServerSID Mapping
Case study
Abstract infrastructure illustration for the Universität Hamburg engagement
Universität Hamburg

Endpoint Management

SCCM Consultant

I created an SCCM rollout concept and technical deployment building blocks for a target of 1,200 clients.

SCCMMDTUSMTEndpoint Protection
Case study
Abstract infrastructure illustration for the Joh. Berenberg Gossler engagement
Joh. Berenberg Gossler

Data & Automation

Scripting Consultant

I migrated an existing batch script to PowerShell and enabled the internal team to automate server provisioning.

PowerShell 3.0BatchWindows ServerAutomation
Case study
Abstract infrastructure illustration for the IP-Dynamics engagement
IP-Dynamics

Messaging & Collaboration

Unified Messaging Consultant

I handled technical Lync questions and combined support, workshops and documented operating guidance.

Microsoft Lync ServerUnified Messaging3rd-Level SupportWorkshops
Case study
Abstract infrastructure illustration for the Peter-Kremser engagement
Peter-Kremser

Data & Automation

Database Administrator

I structured the design, performance, backup and automated maintenance of an SQL database as one connected operating process.

SQL ServerIndexingBackup & RestoreReplication
Case study
Abstract infrastructure illustration for the LSH-AG Seevetal engagement
LSH-AG Seevetal

Endpoint Management

System Administrator

I prepared administrators for policies, users, networking and data security with a hands-on Windows 7 workshop.

Windows 7Group PolicyUser ManagementNetwork Administration
Case study
Abstract infrastructure illustration for the TK Hamburg engagement
TK Hamburg

Messaging & Collaboration

Migration Consultant

I prepared the migration from Lotus Notes to Exchange, supported the transition and documented the operational handover.

Lotus NotesMicrosoft ExchangeMigrationDocumentation
Case study
Abstract infrastructure illustration for the Hapag-Lloyd engagement
Hapag-Lloyd

Active Directory & Migration

System Engineer

I designed Active Directory, replication, GPOs and DNS for container ships with intermittent network connectivity.

Active DirectoryAD SitesDNSGroup Policy
Case study
Abstract infrastructure illustration for the Stadt Lübeck engagement
Stadt Lübeck

Active Directory & Migration

System Administrator

I analysed open issues in a newly built Active Directory domain and coached the administrators on the live system.

Active DirectoryGroup PolicyEvent LogsWindows Security
Case study
Abstract infrastructure illustration for the Otto GmbH & Co. KG engagement
Otto GmbH & Co. KG

Data & Automation

Database Administrator

I supported Oracle administrators with troubleshooting, configuration and performance work on SQL Server 2008.

SQL Server 2008OraclePerformance TuningProduction Support
Case study
Abstract infrastructure illustration for the Bassler AG engagement
Bassler AG

Endpoint Management

SCCM Consultant

I analysed OSD errors, developed tested images and packages and coordinated the technical work packages.

SCCMOperating System DeploymentDriver ManagementTask Sequences
Case study
Abstract infrastructure illustration for the Hauni Maschinenbau AG engagement
Hauni Maschinenbau AG

Endpoint Management

Migration Consultant

I analysed application compatibility and developed a documented strategy for the subsequent rollout.

Application CompatibilitySoftware RolloutWindowsDocumentation
Case study
Abstract infrastructure illustration for the Prinovis Ltd. & Co. KG engagement
Prinovis Ltd. & Co. KG

Security & Recovery

Windows Security Consultant

I taught and tested Windows security mechanisms, from EFS and certificates to BitLocker and ADMX GPOs.

Windows 7PowerShellEFSBitLocker
Case study
Abstract infrastructure illustration for the Gewerbeschule G18/G19 engagement
Gewerbeschule G18/G19

Messaging & Collaboration

Migration Consultant

I prepared the SharePoint Services migration and developed GPOs for a multi-domain system.

SharePoint ServicesGroup PolicyMulti-DomainMigration
Case study
Abstract infrastructure illustration for the MG IT Services engagement
MG IT Services

Messaging & Collaboration

Exchange Consultant

I resolved open Exchange escalations and prepared the migration from Exchange 2007 to 2010.

Exchange 2007Exchange 20103rd-Level SupportMigration
Case study
Abstract infrastructure illustration for the Siemens AG engagement
Siemens AG

Data & Automation

System Administrator

I automated Windows 7 administration with PowerShell and handed over the knowledge in practical support workshops.

PowerShellWindows 7AutomationSupport Workshops
Case study
Abstract infrastructure illustration for the Juwi Holding AG engagement
Juwi Holding AG

Endpoint Management

SCCM Consultant

I designed and implemented an SCCM platform, from AD preparation and site design to PXE, images and software distribution.

SCCMPXETask SequencesDistribution Points
Case study
Abstract infrastructure illustration for the Dataport AöR engagement
Dataport AöR

Virtualisation & Operations

Linux Systems Consultant

I analysed Linux authentication issues, developed solutions and turned the diagnostic paths into an administrator bootcamp.

LinuxAuthenticationSystem AdministrationAdministrator Training
Case study
Abstract infrastructure illustration for the Hamburg Süd engagement
Hamburg Süd

Messaging & Collaboration

System Engineer

I handled SharePoint, SQL and PKI tasks as separate technical workstreams within the same engagement.

SharePoint 2010SQL ServerPKICRL
Case study
Abstract infrastructure illustration for the BMI Berlin engagement
BMI Berlin

Endpoint Management

SCCM Consultant / Trainer

I analysed the SCCM site structure and open network issues and taught the diagnostic paths in an admin workshop.

SCCMSite DesignNetworkingTroubleshooting
Case study
Abstract infrastructure illustration for the UKE Hamburg engagement
UKE Hamburg

Security & Recovery

System Administrator

I analysed complex ACL, GPO and folder redirection issues and automated access control via user attributes.

ACLActive DirectoryGroup PolicyFolder Redirection
Case study
Abstract infrastructure illustration for the C. Marschner KG engagement
C. Marschner KG

Messaging & Collaboration

System Engineer

I planned and carried out the move from Exchange 2003 to Exchange 2007, including data, mailboxes and operational handover.

Exchange 2003Exchange 2007Mailbox MigrationActive Directory
Case study
Abstract infrastructure illustration for the Nord Boden Wohnimmobilien Verwaltungs-GmbH engagement
Nord Boden Wohnimmobilien Verwaltungs-GmbH

Virtualisation & Operations

Network Consultant

I analysed network, security components and backup processes and configured the documented operating building blocks.

NetworkingRoutersSwitchesFirewalls
Case study
Abstract infrastructure illustration for the Kanzlei Huth engagement
Kanzlei Huth

Security & Recovery

Backup Consultant

I configured Backup Exec workflows for Active Directory and file servers and documented the intended recovery path.

Backup ExecActive DirectoryFile ServerDisaster Recovery
Case study
Abstract infrastructure illustration for the Fondsbörse Zweitmarkt Hamburg engagement
Fondsbörse Zweitmarkt Hamburg

Virtualisation & Operations

Virtualisation Consultant

I evaluated VMware and Hyper-V and planned virtualisation building blocks including network, storage, backup and recovery.

VMwareHyper-VVirtual NetworkingStorage
Case study
Abstract infrastructure illustration for the Skillnetworks GmbH engagement
Skillnetworks GmbH

Virtualisation & Operations

IT Consultant / IT Trainer

I combined Microsoft training with 3rd-level support and hands-on administration of server, client and messaging platforms.

Windows ServerSCCMExchangeVMware
Case study
Abstract orchestration of AI automation, web and app product modules
RK TECH LTD

Own company

Founder & Technical Lead

With RK TECH LTD I am responsible for AI automation and the technical delivery of web and app products.

AI AutomationWeb DevelopmentApp DevelopmentFull-Stack Development
Case study

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