S2P Sub Process Lead e-Invoicing (f/m/x)

at MARS

Hybrid working

Location: Warsaw (other possible locations: Poznan, UK, Mexico, Brazil)

Join Mars as a S2P Sub Process Lead for e-Invoicing within our Digital Core program. In this role, you will drive the development of global design for the e-Invoicing domain, ensuring compliance with government mandates and increases e-Invoice adoption and efficiency. You will collaborate with cross-functional teams to deliver a future-ready, end-to-end process design whilst supporting successful segment deployments.

What will be your key responsibilities?

• Utilize Mars knowledge and networks to identify key business scenarios across the e-Invoice landscape.

• Lead the development and deep dive sessions for the e-Invoice landscape process design.

• Participate in global design workshops and previews for e-Invoicing.

• Collect, analyze, and present information to enable key design decisions.

• Lead and support change impact assessments and provide input for training needs analysis.

• Own e-Invoicing documentation to ensure alignment with design and quality.

• Identify test cases for e-Invoicing.

• Support the data team to ensure data accuracy and relevance.

• Support segment deployments of e-Invoicing.

• Build country understanding of the e-Invoicing global template to validate fit and identify gaps.

• Use country validation output to refine design and process documentation.

• Work with the PMO to develop, deliver, and manage activity plans to ensure delivery to time, quality, and budget.

• Propose and instigate corrective actions as needed.

• Identify and build a network of e-Invoicing experts within Mars.

• Ensure alignment with BAU e-Invoice processes and teams.

• Support the E2E Transformation Lead GPO and PMO in leading multi-functional teams.

What are we looking for?

• Bachelor’s or master’s degree in any discipline preferred (preferably Finance, Procurement, Supply Chain).

• Minimum 5 years’+ domain experience in a CPG or similar company.

• Lean Six Sigma certification is a plus.

• Detailed understanding of e-Invoice tools, standards, and processes.

• Knowledge of e-Invoice government mandates and their impact on I2P processes.

• Experience with ERP systems (ideally SAP).

• Prior experience in leading transformational programs or enterprise-wide change initiatives.

• Good exposure to P2P and connected technologies (e.g., Ariba, SAP, OneSource, VIM).

• Fluent in English (excellent written and oral skills).

• Highly collaborative with executive presence and influencing skills.

• Digital savvy and exposure to RPA, automation, and AI.

What can you expect from us?

• Contract of employment.

• Attractive financial conditions with Business Bonus and Christmas Bonus.

• We will also look after your safety and well-being by offering you rich benefits package including life insurance, private medical care, Employee Assistance Program fully covered by Mars, MultiBenefit Program.

• Subsidized meals.

• Extra savings scheme to support You in long perspective.

• Support in career building through personalized development plan.

• On-line & On-site 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 Warsaw City Centre.

Apply now and upload you profile in English.

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