Hello, I am
Damien Cassaigne
Business Strategy | Change Management | Deal Negotiation | Leadership
Offering Freelance Consulting & Interim Assignments Backed by 35+ Years of ICT & Global Management Experience.
How can I help you?
Work History:
Founder
Cassaigne Consulting
- Launched 1st March 2025!
- Business Strategy
- Change Management
- Deal Negotiation
- Leadership.
General Manager
AT&T
- Drove strategic business change
- Turned P&L to green through cost and revenue actions
- Developed CxO-level client relationships
- Secured $270M+ TCV wins in telecom solutions
- Led teams of 250–350 FTE for global delivery.
Sales Centre VP
AT&T
- Closed $600M+ in TCV through IBM partnerships
- Generated $150M+ in annual enterprise revenue
- Optimised joint GTM strategy with IBM Europe
- Drove consultative selling and innovation-led deals
- Negotiated high-value contracts.
Director / Executive Director
AT&T
- Core team member on $1.6Bn outsourcing contract
- Full outsourcing lifecycle from solution to execution
- Ensured $365M+ annual outsourcing revenue
- solution and contracting
- Negotiated complex contracts for success.
Project Manager / Executive
IBM
- Led international projects with cross-border teams
- Client Project Executive for enterprise accounts
- Applied PMI-certified methods to improve efficiency
- Oversaw infrastructure projects to delivery.
Consultant
Department of Health UK
- Delivered freelance consulting for project management.
- London-based
- UK public sector
- Developed and deployed PRINCE methodology.