Mars
Commercial Support Executive

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Job Description:
📍 Waltham – Hybrid working
💷 £27,500– £28,600 Dependent on experience
🎁 + Performance Bonus & Exceptional Benefits
🕒 Hours: Mon – Fri 37.5
⏳ Fixed Term Contract – 18 Months
🌟 Why Join Us?
We care about the world and your future. Mars offers competitive compensation and benefits along with some great perks, like fun freebies and best-in-class development. As a Mars Associate, you have our ongoing commitment to your growth and development as you work across our world-famous brands. The world we want tomorrow starts with how we do business today, and we're here to support you every step of the way.
💼 The Role
Support invoice and spend management, New Product Development (NPD) activities, and customer administration. Working closely with a range of stakeholders, you will help ensure the efficient delivery of day-to-day operations through strong analytical, communication, and organisational skills.
✅ What We’re Looking For
Reasons to use Rodeo
I’m in my final year doing Economics and I don’t know whether to apply for grad schemes now or do a masters first. What do you think?
Honest answer — it depends on where you want to end up. A lot of top grad schemes (Big 4, civil service, banking) don’t need a masters. Let’s look at the ones you’d be competitive for now, and we can decide if a masters actually adds anything.
Also worth knowing: most autumn 2026 applications are open now. Timing matters more than you think.
Start with a chat, not a search bar
Grad scheme, placement, apprenticeship? Not sure what you want yet — that's fine. Your agent talks it through with you and turns "I have no idea" into a shortlist.
Graduate Consultant — 2026 Scheme
Why you're a good match
StrongYour economics background and your summer at a regional bank line up with what PwC looks for on the consulting scheme. Applications close in four weeks.
See breakdownIt searches the market for you
Every day your agent scans the market matching roles against what actually matters to you, not just keywords on a CV.
Why you're a good match
You’ve got the grades and the economics background, and your bank internship is exactly the experience this scheme looks for. Apply soon — deadlines close within the month.
Experience fit
Your summer at the bank plus your econometrics coursework map directly to the day-one responsibilities on this scheme — client modelling, market briefings, and deal support.
Only hits
No noise. No "maybe this fits." Just roles with a clear explanation of why they're right — and where to focus when applying.
- Excellent attention to detail and the ability to build strong working relationships across a variety of teams.
- Advanced proficiency in Microsoft Excel, along with strong working knowledge of PowerPoint and Word.
- Excellent interpersonal and communication skills, with the ability to engage effectively with stakeholders at all levels.
- A structured, proactive approach to work, with the ability to prioritise tasks, manage competing demands, and work independently.
- Strong analytical and problem-solving skills, with the ability to interpret data and identify opportunities for process improvement.
- Own transport is essential due to location.
🔧 Key Responsibilities
- Manage invoice processing and spend administration activities, ensuring accuracy, compliance, and timely resolution of any discrepancies.
- Support New Product Development (NPD) projects by coordinating administrative activities, maintaining product information, and assisting with key project milestones.
- Provide general administrative support to customer-facing teams, ensuring the timely completion of requests and effective stakeholder communication.
- Maintain accurate records, reports, and documentation to support business operations and decision-making.
- Prepare and analyse data using Excel and other business systems to provide insights and support operational activities.
- Build strong relationships with internal teams and external stakeholders to ensure effective collaboration and service delivery.
- Support continuous improvement initiatives by identifying opportunities to streamline processes and enhance efficiency.


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🌍 What You Can Expect from Mars
- Work alongside 130,000+ Associates worldwide guided by our Five Principles
- Be part of a purpose-driven company shaping “the world we want tomorrow”
- Access world-class training & development from day one
- Join a company with an industry-leading salary and benefits package
“It took my CV and asked me questions relevant to understanding what kind of jobs to suggest for me. Suggestions were almost perfect. Jobs were exactly what I’ve been looking for.”
Jessica, London