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Mars UK • GSW-Mars Global Services | MEX-Queretaro-Queretaro | Poland

Workday Solutions Manager- Core HCM/Payroll/Benefits (f/m/x)

Employment type:  Full time
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Job Description

Job Description:

Workday Solutions Manager- Core HCM/Payroll/Benefits (f/m/x)

in Mars Global Service

P&O Solutions Department

Location: Warsaw (Poland) or Queretaro (Mexico)

Hybrid working

* Fully virtual recruitment experience *

In this role, you will play a key part in designing, implementing, and enhancing Workday solutions that support our global HR processes and business objectives. Working closely with HR teams, Centers of Excellence, Operations, Payroll, Benefits, Integrations, and other stakeholders, you will translate business challenges into sustainable technology solutions. You'll combine deep Workday expertise with strong analytical and consulting skills to drive process optimization, system enhancements, and continuous improvement across the organization.

What would be your key responsibilities?

Solutions Design:

  • Serve as a subject matter expert on the Workday platform performing administrative functions including business process administration, security, and Integration support
  • Strive to automate processes to eliminate waste and drive efficiency in the organization and leverage return on technological capabilities.
  • Understand business outcomes, gather business requirements and map to system capabilities and design solutions.
  • Lead and/or perform configuration changes in accordance with application procedures.
  • Acting SME for Core HCM workstream driving towards decisions and recommending best practices related to functionality that includes, but is not limited to, maintaining business processes, condition rules, and new Workday release features
  • Actively contribute and participate In Workday community and build cross-domain capability to design and deliver integrated solutions

Customer Partnership

  • Partner with Global Experience Owner, Global Process Owner, COEs, Integrations, Payroll & Benefits teams, and HR Operations to identify continuous improvement opportunities and drive adoption of global standards
  • Ensure requirements are defined, reviewed, and agreed upon with the key stakeholder/project team.
  • Communicate regularly with key stakeholders to ensure expectations are aligned.

Process Management

  • Regularly assess current state and proactively identify areas of opportunity for improvement
  • Understand objectives of business processes related to technology and translate into functional requirements.
  • Responsible for driving Workday business process design activities for Core HCM
  • Serve as an escalation point and lead for process design and system configuration support
  • Maintain the system configuration, reporting and calculated field designs

Project Management

  • Use agile methodology to continually deliver solutions, manage small to medium size projects, and process improvements
  • Identify and escalate key issues, risks, roadblocks in delivering solutions
  • Develop documentation for test scenarios, ensure process documentation for configurations and maintain project documentation standards.

What are we looking for?

  • Bachelor's degree or equivalent experience.
  • Minimum 5 years of HR experience, including at least 3 years working with Workday
  • Strong expertise in Workday Core HCM and HR technology solutions.
  • Experience with HR systems, integrations, and process design.
  • Strong stakeholder management and communication skills.
  • Knowledge of project management methodologies and requirements gathering.
  • Analytical mindset with strong problem-solving and logical thinking abilities.
  • Ability to work independently, manage multiple priorities, and deliver results in a fast-paced environment.
  • Fluent English is required.
  • Workday Core HCM Certification, Shared Services experience, and a strong interest in technology are a plus.

What can you expect from Mars?

  • An industry competitive salary and benefits package, including company bonus.
  • Work with 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.
  • A strong focus on learning and development support from day one, including access to our in-house Mars University

Apply now and upload you profile in English

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Working at Mars UK

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

Flexa100 2023
Retail & Ecommerce

Retail & Ecommerce

Industry awards 2022
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