Roland Bohlender-Senior Technical Lead
Check rate
Experience
Senior Technical Lead
RIS Raiffeisen Informations Systeme
- Group-wide transformation program to replace a legacy Lotus Notes/Domino application landscape with a standardized, multi-tenant SharePoint Online target platform for the Italian Raiffeisen banking group.
- Total scope:
- 21 legally independent banks
- approx. 350 live Notes databases
- several thousand end users
- parallel operation of legacy and cloud platforms
- high regulatory requirements (audit, traceability, governance)
- Program designed as application, organizational and platform transformation – not just a technical migration.
- Definition of multi-tenant target architecture based on SharePoint Online
- Design of tenant separation including security, permissions and governance model
- Analysis and classification of Notes applications by criticality and complexity
- Definition of migration strategies (standard migration, redesign, retirement)
- Development of a multi-stage migration approach (pilot, test, production)
- Planning of fallback, rollback and stabilization measures
- Technical support and quality assurance of migration runs
- Development of automations (PowerShell, WebParts)
- Central technical interface between central IT, bank tenants, business departments and service providers
- Support in escalations and critical decision situations
- Technologies: SharePoint Online, Microsoft 365, Azure, PowerShell, Quest Notes Migrator
Subproject Manager / Senior Technical Lead
ARZ Allgemeines Rechenzentrum
- Central migration program to replace a heterogeneous Notes/Domino mail environment with Exchange Online in a multi-tenant setup for several Austrian banking groups.
- Total scope:
- 35 banks
- approx. 11,000 end users
- approx. 900 group mailboxes
- complex coexistence phases with parallel operation
- high requirements for security, compliance and operational stability
- Design of multi-tenant and coexistence architecture
- Definition and implementation of complex mail routing and security concepts
- Planning and managing multi-stage migration runs per bank
- Technical leadership during the coexistence and transition phase
- Escalation management between banks, operations, business departments and service providers
- Ensuring operational capability and stability during migration
- Support for stabilization and optimization measures after go-live
- Technologies: Exchange Online, Office 365, Quest Notes Migrator, Quest Coexistence Manager, PowerShell, IronPort
Project Leader
ING DiBa
- International infrastructure and migration program to consolidate and migrate an Exchange 2013 environment into global data center structures in preparation for downstream cloud strategies.
- Total scope:
- approx. 57,000 end users
- approx. 2,400 group mailboxes
- internationally distributed IT, operations and support teams
- high requirements for availability and operational stability
- Creation and review of design, migration and operations concepts
- Planning and management of migration waves
- Development of migration and planning tools (Excel, VBA, PowerShell)
- Coordination of support and floorwalker teams
- Stakeholder and risk management
- Crisis and decision management during the Corona special situation
- Ensuring stable operations during and after migration
- Technologies: Exchange 2013/2016, Windows Server, PowerShell
Infrastructure Manager
Commerzbank
- Set up the complete IT infrastructure for the Commerzbank branch in São Paulo
- Responsible for network, security, high availability and disaster recovery
- International coordination (Europe, USA, Brazil)
- Support for regulatory approvals (BACEN)
Migration Consultant
Bayerisches Landeskriminalamt
- Migration of approx. 42,000 end users
- Design and build of highly available Exchange DAG architectures
System Consultant Lotus Notes
CompuNet
Network Engineer
CSC Computer Sciences Coop.
C Programmer
Arztpraxiscomputersystem
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Information Technology, Banking and Finance, Healthcare, and Government and Administration.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Project Management, and Quality Assurance.
Summary
Senior IT program and project manager with over 30 years of experience in leading and technically managing complex IT transformation programs in the banking sector. Solid expertise in large-scale enterprise migrations of legacy systems (Lotus Notes/Domino) to Microsoft cloud architectures (Microsoft 365, Exchange Online, SharePoint Online, Azure).
Many years of experience as a program-level project manager and technical lead in highly regulated environments with strong demands for security, compliance, tenant separation, and governance.
Typical assignments in critical, complex, or at-risk programs where strategic control, technical depth, and international coordination are needed at the same time.
Skills
Program & Project Management (Banks)
Leading Complex Multi-Stream Programs
Interim Project Management & Overall Technical Responsibility
Escalation, Risk & Stakeholder Management
Managing Internal Teams & External Service Providers
Microsoft Cloud & Enterprise Migration
Microsoft 365, Exchange Online, Sharepoint Online
Azure, Azure Ad / Entra Id, Hybrid & Multi-Tenant Architectures
Large-Scale Notes/Domino Migrations → Microsoft Cloud
Technical Leadership & Architecture
Target And Migration Architectures
Security, Compliance & Governance Concepts
Operational, Handover & Stabilization Phases
Regulated Environments
Banks & Financial Services (Focus)
International Corporate Structures
Audit, Security & Compliance Requirements
Ai Expertise
Certified Ai Manager & Ai Consultant
Using Ai For Analysis, Automation & Decision Support
Governance-Compliant Ai Use In The Banking Sector
Critical Banking & Financial Services Programs
Large-Scale Enterprise & Cloud Migrations
Interim Project Management & Senior Technical Lead
Escalation, Stabilization & Rescue Projects
Languages
Education
Heidelberg University
Diploma in Medical Informatics · Medical Informatics · Heidelberg, Germany
Vocational Secondary School
General higher education diploma · Würzburg, Germany
Vocational Further Education School
Technical college entrance qualification
Certifications & licenses
Training: Domino R8 System Administrator & Notes Application Developer R8
AI Consultant Training
MCDP: Microsoft Certified Professional Developer 2010
PCLP (Principal Certified Lotus Professional)
Statistics
Experience
Global experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Roland is based in Hösbach, Germany and can operate in on-site, hybrid, and remote work models.
Roland speaks the following languages: German (Native), English (Advanced).
Roland has at least 19 years of experience. During this time, Roland has worked in at least 8 different roles and for 8 different companies. The average length of individual experience is 2 years and 5 months. Note that Roland may not have shared all experience and actually has more experience.
Based on recent experience, Roland would be well-suited for roles such as: Senior Technical Lead, Subproject Manager / Senior Technical Lead, Project Leader.
Roland's most recent position is Senior Technical Lead at RIS Raiffeisen Informations Systeme.
In recent years, Roland has worked for RIS Raiffeisen Informations Systeme and ARZ Allgemeines Rechenzentrum.
Roland is most experienced in industries like Information Technology, Banking and Finance, and Healthcare. Roland also has some experience in Government and Administration.
Roland is most experienced in business areas like Information Technology, Project Management, and Quality Assurance.
Roland has recently worked in industries like Banking and Finance.
Roland has recently worked in business areas like Information Technology, Project Management, and Quality Assurance.
Roland attended Heidelberg University for Medical Informatics.
Roland has 10 certificates. Among them, these include: Training: Domino R8 System Administrator & Notes Application Developer R8, AI Consultant Training, and AI Manager Training.
The availability of Roland needs to be confirmed.
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Calculated based on our freelancers’ daily rates as of 6 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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