Reliable IT Interim Management & ITSM Expertise

Helping organizations strengthen IT operations, streamline service management, and stay compliant.

VIEW SERVICES

About Me

Founder and Director
Founder laughing

Hi, I’m Dietwin Betlem, an experienced IT professional specializing in IT Interim Management, IT Service Management (ITSM) process design, and Risk, Security & Compliance. With a strong background in IT operations and service delivery, I help organizations improve efficiency, strengthen compliance, and align IT strategy with business goals. I believe in a hands-on and pragmatic approach — turning complex IT challenges into practical, measurable solutions that deliver real business value.

IT Interim Management, Compliancy & ITSM Expertise

ITSM PROCESS HEALTH CHECK

Assess the health of your ITSM processes and identify gaps across Incident, Change, Problem, Request, Configuration, and Release management. Get a clear, actionable improvement roadmap.

Read More

NIS2 COMPLIANCE SCAN

Determine whether NIS2 applies to your organization, assess compliance gaps, and receive a practical roadmap to meet cybersecurity requirements and reduce regulatory risk.

Read More

IT COST OPTIMIZATION

Identify unnecessary IT spending across software, cloud, telecom, and managed services. Unlock quick wins and long-term savings with measurable financial impact.

Read More

SIAM QUICK-START PACKAGE

Bring structure to multi-vendor IT environments by implementing SIAM governance, roles, and performance management for better supplier coordination and efficiency.

Read More

IT SOURCING STRATEGY

Define the right sourcing approach, select the best vendors, and optimize contracts to reduce costs while improving service quality and strategic fit.

Read More

IT SERVICE CATALOG DESIGN

Create a clear overview of your IT services with SLAs, pricing, and availability to improve transparency, user experience, and service delivery efficiency.

Read More

CHANGE MANAGEMENT OFFICE SETUP

Improve change success rates by implementing structured change governance, processes, and risk management to reduce failed and emergency changes.

Read More

IT GOVERNANCE FRAMEWORK

Align IT with business strategy through a structured governance model, clear decision-making, portfolio management, and risk management framework.

Read More

Work Experience

May2024 - Present
Owner
BSD Advies & Interim
  • Experienced IT and Service Delivery Consultant
  • Broad background in outsourcing and security
  • Operational, policy-driven and strategic expertise
  • Applies experience to tenders, onboarding and
    transformation projects
Nov 2024 - Present
Conclusion/Quanza/RWS
SDM, security
  • Active as Risk Manager, Quartermaster, ITIL Process
    Manager, and SIM Manager on Large Mission Critical
    account.
  • Supervised a Large-contract where ITIL processes
    were integrated into a SIAM framework.
  • Established and staffed a Change Office, including
    implementation of new security measures and
    controls
Nov 2021 - Nov2024
Service Delivery Manager
Large Accounts
  • Management of complex, high-value portfolios with
    strategic impact
  • P&L responsibility across multiple accounts, closely
    involved in business cases and governance
  • Bridge between clients, suppliers, and internal
    teams
Nov 2018-2021
Captain of Services
Wortell
  • Leadership role in a fast-growing organization; team
    expanded from 30 to 90 employees
  • Managed the Service Management Team (9 people)
2006 - 2014
BT Global Services
SR. Service Account Manager & Operational team lead
  • End-to-end operational responsibility for Regio
    College Zaanstad
  • Full autonomy with a permanent team of six
  • Pre-sales activities, tender management, Due
    Diligence
  • Project management
  • Tactical and operational contact for all assigned
    customers
2002 - 2006
Service Manager
Syntegra SCN
  • Responsible for all services delivered from the
    Syntegra Group portfolio in co- and outsourcing
    and managed services
  • Pre-sales activities
  • Reporting and project management
  • Creation of sales leads
VIEW FULL RESUME

Skills

Teambuilding
90%
Creating shared values and common ground
100%
IT Interim Management
95%
IT Service Management (ITSM)
90%
Process Design & Optimization
88%
Risk Management & Compliance
92%
IT Strategy & Transformation
88%

Languages

Dutch
100%
German
82%
English
90%
Spanish
43%

Education

  • SPD Bedrijfseconomie — 1993
  • HAVO — 1984-1986
  • Praktijkdiploma Boekhouden (PDB) Moderne Bedrijfsadministratie (MBA) — 1988-1990
  • LBO Electro — 1980-1984

Tools & Technologies

CRM

• MS365

ITSM

• Assyst • ServiceNow • Freshservice • TopDesk

Collaboration

• JIRA • Microsoft Teams

Let's Connect

Looking for an experienced IT professional to support your organization’s next phase of growth or transformation?
Let’s connect and discuss how I can help.

Contact Details

Get in Touch