References

Mandates with an outcome


Selected mandates from more than two decades – some named, many under confidentiality. What counts are verifiable results, not big words.

List of references

Night scene of the architecture turnaround: legacy server racks stand in a dark data centre on the left; a golden fibre-optic cable runs through an opening in a massive concrete wall and fans out on the right into a floating, glowing node mesh – the cloud-native SDN cloud.

Confidential · Public-sector IT · since 2023

Private cloud – build-up & accreditation

Interim crisis manager / SAFe Product Manager

Leading the build-up and accreditation of a sovereign private cloud infrastructure in the public sector – as crisis manager in the role of SAFe Product Manager within a scaled agile model. In the turnaround, the network architecture was rebuilt within 12 months from legacy data-center LAN to cloud-native software-defined networking.

  • >€500mprogramme volume
  • >200FTE in build-up
  • 12 monthslegacy LAN → cloud-native SDN
  • Private Cloud
  • SAFe
  • Software-Defined Networking
  • Cloud-native
  • Accreditation
  • Interim
  • Turnaround
Night scene in a dark, minimalist corporate lobby: a large circular light graphic is projected onto the polished floor – on the left a cool, strict grid (structure, process), on the right a cool network of connected nodes (connectivity, self-organisation). At the centre a warm golden, organically branching weave bursts forth and joins the two patterns – the brightest point of the image, symbolising ZuSaMo as a shared operating system.

Confidential · Public-sector IT · since 2023

Transforming the team collaboration model

Transformation Project Manager

Transforming the internal IT service organisation that runs the full standard-IT portfolio – from hardware and data-centre services through base infrastructure and virtualisation to the digital workplace and collaboration tools. Focused on effectiveness, reliability and ability to act; evolving the Lean-Agile operating system.

  • ~1,000people in scope
  • ~100teams in scope
  • Collaboration model
  • Lean-Agile
  • IT service organisation
  • Enablement
Aerial night view of a race circuit in a dark, hilly landscape: a golden light trail traces the closed loop across the asphalt, four glowing waypoint markers structure the lap – symbolising the quarterly RaceTrack portfolio process. The track is brightly lit at the start–finish gantry.

BdK Bank · Financial services · 2019–2022

RaceTrack – transforming corporate planning

Chief Digital Officer (CDO)

Introducing the strategic portfolio process “RaceTrack”: less planning complexity, faster time-to-market and greater enterprise agility.

  • Portfolio process
  • Enterprise agility
  • Strategy
  • Corporate planning
Aerial night view of a dark landscape: scattered, warmly lit car dealerships with rows of parked vehicles are woven directly together by golden light lines into a decentralised network – a marketplace owned by the dealers, with no central hub. On the horizon, the skyline of the established giants glows cold and distant.

BdK Bank · Financial services · 2019–2022

JuhuAuto – building & scaling a marketplace

Chief Digital Officer (CDO)

Building and scaling the digital vehicle marketplace JuhuAuto, embedded in an end-to-end digital omni-channel process and a new customer-centric product unit.

  • 40k → 150kvehicles in 6 months
  • Marketplace
  • Omni-channel
  • Product build-up
  • Scaling
Manned forklifts with glowing telematics boxes and faint data links in a dark warehouse, a supervisor with a tablet overseeing the fleet – symbolising connected IoT fleet management.

Jungheinrich · Intralogistics · 2017–2019

Digital IoT business models at Jungheinrich

Interim product & delivery lead

Reshaping the digital product portfolio and go-to-market strategy; building modern cloud/IoT products on a micro-frontend architecture. Security from day one: DevSecOps with threat modelling and shift left – and full operational ownership of the entire stack, from IoT platform to cloud-native applications.

  • ~€12mrevenue ownership
  • 24/7You build it, you run it
  • double-digitgrowth
  • IoT
  • Cloud
  • Micro-Frontend
  • DevSecOps
  • Cyber Security
  • Threat Modelling
  • Shift Left
  • Interim
Fan of fine simulation lines on deep blue, the likely path highlighted in gold – symbolising a Monte Carlo risk analysis.

Confidential · Financial services · 2017–2018

Programme coaching & risk management

Interim agile programme manager

Coaching the internal programme lead of a ~€90m programme with five cross-functional agile teams; KPI-driven risk management based on Monte Carlo simulations, with a direct reporting line to the executive board.

  • ~€90mprogramme volume
  • 5cross-functional teams
  • Programme coaching
  • Risk management
  • Monte Carlo simulation
  • Agile
  • Interim
Word marks of the Schwerhoff group (Schwerhoff Consultants, The Auditing Company) – created as part of refreshing the external brand presence

Schwerhoff Consultants & The Auditing Company · Consulting / audit · 2011–2016

P&L ownership & leadership transformation

Managing Director

P&L ownership for €5m revenue, transforming the leadership model and company culture. At the same time modernised the firm from within: streamlined internal processes, introduced an ERP system and refreshed the external brand presence – the word marks shown here were part of that work.

  • €5mP&L ownership
  • 15–20%EBITDA growth in year one
  • General management
  • P&L
  • Culture
  • Turnaround
Stylised logistics chain at dusk: cargo plane, freight train and truck converging on a harbour with a departing container ship

Confidential · Logistics · 2013–2015

Global IT & business transformation

Auditor team lead

Leading an eight-person auditor team in a global IT and business transformation in freight forwarding: phase-gate reviews and risk management for the overall programme, supporting roll-outs across country waves – including on site in Hong Kong. Plus assessing change requests and fact-based dispute resolution between client and vendor – a mediator role at programme level. Reporting directly to the programme board, led by the Chief Transformation Officer and the Chief Information Officer.

  • ~€1bnprogramme volume
  • 8auditors in the team
  • Freight forwarding
  • Programme audit
  • Phase-gate reviews
  • Risk management
  • Dispute resolution
Magnifying loupe on contract-style documents with an organisation chart and TCO table in warm desk light – symbolising an independent second opinion.

Confidential · Industry / IT outsourcing · 2014

Second opinion on a major IT outsourcing deal

Advisor · second opinion

Independent second opinion on a large-scale IT outsourcing initiative in industry: a sober assessment of programme and contract risks. The key risks we flagged largely materialised at the client within the first twelve months.

  • >€650mdeal volume
  • >75,000IT workplaces in the migration
  • ~10,000servers in the migration
  • Second opinion
  • Risk assessment
  • IT outsourcing
  • Due diligence
Satellite, telecom mast and control gantry above a highway interchange at night – symbolising the satellite-based tolling system with GNSS positioning, GSM data transmission and stationary enforcement.

Satellic · Mobility / road tolling · 2014–2016

Launch of Belgium's truck toll system (Satellic)

Auditor / second opinion for the management board

Auditor / second-opinion role for the management board during the launch of Belgium's satellite-based truck toll system – leading a five-person team. Appointed by the three Belgian regions, the operator designed, built and went live with a complete nationwide tolling system in under two years – on 1 April 2016.

  • < 2 yearsfrom mandate to go-live
  • ~€650mtoll revenue in year one
  • >600,000registered customers
  • Tolling
  • Programme
  • Go-live
  • Mobility
Night-time project floor in a high-rise, seen from a slightly elevated angle: four silhouettes stand around a central table on which a golden programme plan glows. From there a warm wave of light spreads across the dark rows of desks – the nearest rows already lit, the farthest still in the blue of night. City lights behind the windows.

Accenture · Top-tier consultancy · 2007–2011

SI-Mobilization & project-management training

Manager

Building a team for the rapid mobilisation of large programmes across Europe – ramping up programmes with double- and triple-digit million-euro budgets. At the same time owning the project-management training track for the DACH region, with more than 100 consultants trained, and contributing to the global program-management curriculum.

  • double to triple digit€m programme ramp-ups
  • >100consultants trained in PM
  • SI-Mobilization
  • Project management
  • Training
  • Capability building
Dark DIY store aisle at night: traces of light connect shelves, a shopping cart and a glowing digital surface at the end of the aisle – symbolising multi-channel retail in DIY.

Confidential · Retail / DIY · 2010

Turnaround of an e-commerce platform (multi-channel retail, DIY)

Turnaround manager

Turnaround management of an e-commerce / multi-channel platform rollout in DIY retail – a critical programme brought back on track.

  • eCommerce
  • Multi-Channel
  • Retail
  • Turnaround

Testimonials

What people say


Assessments from people I have worked with across mandates and projects.

Peer2026

Despite his impressive achievements in our industry, Elmar always retains a remarkable humility. What truly sets him apart in practice is the combination of deep professional expertise, enormous personal commitment and constant goal orientation. He pairs his expert knowledge with absolute honesty and a consistently respectful manner at eye level, regardless of hierarchy. It is precisely this blend of professional excellence, integrity and appreciation that makes Elmar a true leader – someone I have always enjoyed working with successfully and whom I gladly recommend.

Own translation of the German original

Portrait photo of Sarah PorepSarah PorepTransformation Lead, Pragtics GmbH– Sarah Porep on LinkedIn
Client2025

Elmar is exactly the manager that large organisations need in change projects and challenging situations! He stands out for his agile, flexible thinking and his ability to communicate clearly and effectively across all hierarchical levels. With his collegial manner, his strong conflict-resolution skills and his consistent focus on goals and results, he is a genuine asset to any management team – especially in phases critical to success.

Own translation of the German original

Portrait photo of Christian MarwitzChristian MarwitzCDO, BWI– Christian Marwitz on LinkedIn
Manager2021

With passion and implementation strength Elmar laid the foundation for a sustainable digital business transformation and enterprise agility.

Approved translation

Portrait photo of Martin GuseMartin GuseSpokesman of the Management Board, BdK Banktoday: Founder, northpunkt– Martin Guse on LinkedIn
Manager2019

Elmar is an experienced manager who sets the right strategic priorities – with an agile mindset and a strong drive to deliver digital results.

Own translation of the German original

Portrait photo of Herwig FölsterHerwig FölsterHead of Digital Solutions, Jungheinrichtoday: Interim Manager– Herwig Fölster on LinkedIn
Client2013

What impressed me most was Mr Seestädt's ability to engage with software engineers and top managers alike – cooperatively and at eye level.

Own translation of the German original

Portrait photo of Dr. Georg RauDr. Georg RauVice President, DHL Global Forwardingtoday: Senior Vice President Logistics Services International, Miele & Cie. KG– Dr. Georg Rau on LinkedIn
Manager2011

By building up SI-Mobilization, Elmar transformed and advanced Accenture's project-management capabilities.

Own translation of the German original

Portrait photo of Frank MangFrank MangManaging Director, Accenturetoday: Managing Director, Kijini GmbH– Frank Mang on LinkedIn
Peer2007

I worked with Elmar on his assignment in the India Development Center. Elmar built an atmosphere of trust and succeeded in setting up a cooperative relationship between the on- and offshore team.

Approved original

Portrait photo of Vishal ZadooVishal ZadooSenior Systems Engineer, Accenturetoday: Senior Vice President, JP Morgan Chase & Co– Vishal Zadoo on LinkedIn

Get in touch


Get in touch