01/22/2026 updated

CK
100 % available

Source-to-Pay Transformation Lead

London, United Kingdom
United Kingdom +1
info: United Kingdom, France
MA
London, United Kingdom
United Kingdom +1
info: United Kingdom, France
MA

Profile attachments

CV_Cathy_Kostova_S2P_Consultant.pdf

About me

Source-to-Pay Transformation | SAP Ariba & Ivalua | Global Process Design, Change & Learning Enablement

I’m a senior Source-to-Pay transformation consultant with over 13 years’ experience designing, implementing, and optimising global S2P processes and technologies, including SAP Ariba and Ivalua.

I work with organisations to bridge the gap between process design, system implementation, and real-world adoption - supporting programmes from early business process definition through configuration, testing, go-live, and post-deployment stabilisation. My work spans Procurement, Accounts Payable, Finance, IT, and Change functions, often in complex, multi-country environments.

Alongside hands-on S2P delivery, I specialise in change and learning enablement for large transformation programmes. Drawing on a background in technology and visual storytelling, I design training and communication assets that make complex systems understandable, usable, and sustainable over time - particularly for global rollouts and regulated environments.

I’ve worked across multiple industries including pharmaceuticals, finance, transport and logistics, packaging, public sector, and manufacturing, supporting both enterprise clients and consulting partners.

More recently, I’ve been developing learning content focused on S2P Technology Transition, Sustainable Procurement and behaviour change at work, including the e-learning courses Sustainable Living at Work and Planet over Plastic.

I’m particularly interested in roles and engagements where technology, process, people, and impact intersect.

Specialties: Source-to-Pay Transformation · SAP Ariba · Ivalua · Procure-to-Pay · Guided Buying · Contract Management · Sourcing · Global Process Design · Change Management · E-learning Design · Articulate Storyline 360 · Thinkific · Sustainability

Languages

BulgarianNative speakerEnglishFluentFrenchFluent

Project history

Source-to-Pay Transformation Lead

Project Manager in Information Technology


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