S2P Invoice Processing (non-VIM) SME f/m/x

mars; Polska; Hybrid; PLN 180,000 - 240,000; Full time

Benefits offered by this job

Bonuses

Private medical care

Life insurance

Employee Assistance Program

Lunch card

Pet-friendly office

Job summary

Mars is seeking an experienced S2P Invoice Processing (Non-VIM) SME to help design and implement future-fit invoice processing solutions in a global, standardised landscape. The role requires collaboration with international stakeholders across Digital Core programs and Finance Operations.

The position offers hybrid working from Warsaw with opportunities to influence country-specific requirements, process design, and deployment across markets.

Qualifications

• Minimum 5 years in Invoice Processing, Accounts Payable, P2P, or S2P in international environments.
• Strong knowledge of invoice processing tools, controls, and end-to-end processes.
• Experience with transformation programs or large-scale change projects.

Responsibilities

• Design and implement future-fit non-VIM invoice processing solutions.
• Contribute to global standardization while addressing regional needs.
• Collaborate with international stakeholders, Digital Transformation, Finance Operations, Tax, and S2P experts.
• Support testing and validation activities and documentation.

Skills

Invoice Processing

Accounts Payable

P2P/S2P

ERP SAP

SAP Ariba

OneSource

VIM

Stakeholder Management

Change Management

English Fluent

Education

University degree in Finance/Business

Tools

SAP

SAP Ariba

OneSource

VIM

Job description

Job Description

S2P Invoice Processing (non-VIM) SME f/m/x

Location: Warsaw

Hybrid working

* Fully virtual recruitment experience *

Are you an experienced Invoice Processing professional who enjoys driving change rather than operating established processes? This is a unique opportunity to become part of Mars' Digital Core Program, helping shape the future global Invoice-to-Pay landscape across multiple markets and business segments.

As an S2P Invoice Processing (Non-VIM) SME , you will play a key role in designing and implementing future-fit invoice processing solutions, ensuring global standardization while addressing regional and segment-specific needs. Working closely with international stakeholders, Digital Transformation teams, Finance Operations, Tax, and Source-to-Pay experts, you will contribute to large-scale system and process transformation initiatives that will impact Mars globally.

This is a highly dynamic project environment where adaptability, stakeholder management, and the ability to navigate ambiguity are essential.

What would be your key responsibilities?

Process Design & Transformation

• Use your invoice processing expertise and Mars network to identify key business scenarios across the non-VIM invoice processing landscape.
• Contribute to the design and evolution of global non-VIM invoice processing processes and support detailed business workshops.
• Participate in global design sessions, solution reviews, and process validation activities.
• Support key design decisions and help shape the future operating model.
• Contribute to Proof of Concepts (PoCs) and future-state process development.
• Ensure process documentation is accurate, complete, and aligned with agreed designs.
• Identify and support testing scenarios and test execution activities.

Change & Deployment Support

• Conduct change impact assessments and provide input into training needs analysis.
• Support global and regional deployments of invoice processing solutions.
• Help ensure business readiness across markets and segments.
• Collaborate with data teams to ensure data accuracy and relevance across Invoice-to-Pay processes.

Country Validation & Stakeholder Engagement

• Participate in country validation activities to ensure the global template supports local business and regulatory requirements.
• Work closely with stakeholders across Finance, Procurement, Tax, Digital Transformation, and Shared Service teams.
• Ensure documentation, change impacts, and design decisions reflect country validation outcomes.

Project Delivery

• Manage assigned deliverables according to agreed timelines and quality standards.
• Proactively identify risks, challenges, and dependencies, escalating where appropriate.
• Support continuous alignment between project activities and existing business operations.

What are we looking for?

• Minimum 5 years of experience in Invoice Processing, Accounts Payable, P2P, S2P, or related Finance Operations processes within an international environment.
• Strong understanding of invoice processing tools, standards, controls, and end-to-end processes.
• Working knowledge of ERP (ideally SAP, not necessarily S/4)
• Good exposure to P2P and connected technologies like SAP Ariba, OneSource and workflow technologies like VIM required.
• Experience working in transformation programs, process improvement initiatives, or large-scale business change projects.
• Ability to work independently while effectively collaborating with cross-functional and global teams.
• Strong stakeholder management and communication skills.
• Demonstrated ability to manage ambiguity, adapt quickly, and solve complex process challenges.
• University degree in Finance, Procurement, Supply Chain, Business, or related field.
• Good exposure to P2P and connected technologies like SAP Ariba, SAP, OneSource and workflow technologies like VIM required.
• Knowledge of e-Invoicing regulations and their impact on Invoice-to-Pay processes.
• Exposure to digital technologies, automation, RPA, and AI-enabled process solutions.
• Fluent English

What can you expect from Mars?

• Permanent contract of employment as from the start.
• Attractive financial conditions including Bonuses.
• We will also look after your safety and well-being by offering you rich benefits package including life insurance, Employee Assistance Program fully covered by Mars, and private medical care, MultiBenefit Program and lunch card.
• Extra savings scheme to support You in long perspective.
• Support in career building through personalized development plan.
• On-line shop with attractive discounts on our products that Your family and friend are going to love.
• Possibility to participate in volunteering initiatives during working hours.
• A modern and pet friendly office in the City Center (Zlote Tarasy building).