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Mars

Invoice to Cash Subject Matter Expert

Location:  MEX-Queretaro-Queretaro | Mexico
Location flexibility:  1 office day / week, 2 office days / week, 3 office days / week, 4 office days / week
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Job Description

Job Description:

Your Purpose and Impact at Mars

As an Invoice to Cash Subject Matter Expert (SME), you will play a critical role in driving operational excellence across the end-to-end Invoice to Cash process. Acting as a trusted technical and functional expert, you will help optimize billing, collections, cash application, and reconciliation activities while enhancing customer experience and financial performance. Working closely with cross-functional teams and key stakeholders, you will champion best practices, support continuous improvement initiatives, and contribute to innovative solutions that increase efficiency, operational effectiveness, and customer satisfaction.

What are we looking for?

Essential Requirements:

  • Minimum of 7 years of experience within Invoice to Cash operations, preferably in Shared Services and BPO environments.
  • Strong expertise in Credit & Collections, Cash Application, Account Reconciliations, and Reporting & Analytics.
  • Hands-on experience with SAP and Oracle systems.
  • Advanced Microsoft Excel skills.
  • Proven ability to act as a technical and operational expert, driving process improvements and resolving complex issues.
  • Advanced English proficiency in a global business environment.

Preferred Requirements:

  • Knowledge of Power BI.
  • Experience leading continuous improvement and process transformation initiatives.
  • Experience with training delivery and change management activities.
  • Exposure to customer experience improvement programs.

What will be your key responsibilities?

  • Serve as the Invoice to Cash subject matter expert, providing guidance and promoting best practices across operational teams.
  • Develop, maintain, and enhance process documentation, standard operating procedures, and training materials to improve operational effectiveness.
  • Lead training and communication initiatives related to process enhancements and system changes.
  • Act as the first escalation point for operational issues, ensuring timely resolution and business continuity.
  • Partner closely with internal stakeholders and BPO providers to drive collaboration and seamless operational execution.
  • Support continuous improvement projects focused on enhancing customer experience, process efficiency, and financial performance.

What can you expect from Mars?

  • Work with over 150,000 diverse and talented Associates, all guided by The Five Principles.
  • Join a purpose-driven company, where we’re striving to build the world we want tomorrow, today.
  • Best-in-class learning and development support from day one, including access to our in-house Mars University.
    An industry competitive salary and benefits package, including company bonus.
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Working at Mars

Hybrid

Core hours 11–3

Company benefits

Open to part-time employees
Open to job sharing
Open to compressed hours
Sabbaticals
Enhanced maternity leave – 26 weeks at 90% pay
Enhanced paternity leave – 26 weeks at 90% pay
24 days annual leave + bank holidays
“Pawternity” leave
Pregnancy loss leave
Bank holiday swaps
Shared parental leave
Adoption leave
Family health insurance
Pregnancy support
Neonatal leave
Faith rooms
Meditation space
Dog friendly office
Dog friendly co-working space
Annual bonus
Employee discounts
Cinema discounts
Referral bonus
Joining bonus
Cycle to work scheme
Electric Car Salary Sacrifice
Enhanced pension match/contribution
Theme park discounts
Lunch and learns
In house training
Learning license
Studying sabbaticals
Open to part time work for some roles
Menopause support
On-site gym
On-site barista
Secure on-site parking
On-site catering
Private booths
On-site wellness room
Collaboration spaces

Awards & Accreditations

1st - Most Family Friendly Company

1st - Most Family Friendly Company

Flexa awards 2026
3rd - Best Workplace Benefits

3rd - Best Workplace Benefits

Flexa awards 2026
Most loved - Large companies

Top 5 - Most loved - Large companies

Flexa awards 2026
Best Work-Life Balance

Top 10 - Best Work-Life Balance

Flexa awards 2026
1st - Most Family Friendly Company

1st - Most Family Friendly Company

Flexa awards 2025
2nd – Pet Friendly

2nd – Pet Friendly

Flexa awards 2025
Most Flexible Company

Top 5 - Most Flexible Company

Flexa awards 2025
Most Inclusive Company

Top 5 - Most Inclusive Company

Flexa awards 2025
Best Work-Life Balance

Top 10 - Best Work-Life Balance

Flexa awards 2025
Best Career Progression

Top 10 - Best Career Progression

Flexa awards 2025
Best Workplace Culture

Best Workplace Culture

Flexa awards 2025
Best Workplace Benefits

Best Workplace Benefits

Flexa awards 2025
1st – Large companies

1st – Large companies

Flexa100 2024
Consumer Goods

Consumer Goods

Industry awards 2023
3rd – Large companies

3rd – Large companies

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Retail & Ecommerce

Retail & Ecommerce

Industry awards 2022
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Company employees:

4,000 In the UK

Gender diversity (m:f):

57:43

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