Manager, eCommerce

Mars United Commerce; Detroit (MI); Hybrid; USD 81,000 - 120,000; Full time

Benefits offered by this job

Wellness benefits

Paid time off

Tuition assistance

Flexible work options

401k matching

Job summary

Mars United Commerce is seeking a Manager of Ecommerce to lead strategic initiatives for CPG and shopper marketing clients. The role requires working with Amazon or Instacart and coordinating cross-functional teams in a hybrid model from Detroit (Troy) or New York.

The position emphasizes project management, vendor collaboration, and retailer program optimization, with a focus on AI-enabled media planning and measurement.

Qualifications

• Bachelor's degree in advertising, marketing, business, or related field.
• 5-7 years' experience in marketing in ecommerce in Amazon or Instacart.
• Proven Project Management experience.
• Experience working with retail media networks and media vendors.
• Strategic thinking in the development of Shopper Marketing programs and management of day-to-day business.

Responsibilities

• Work with the internal cross-functional team to develop strategies, concepts and tactics.
• Understand media capabilities from Search to Display.
• Manage the implementation of key client projects.
• Build strong relationships with retailer client contacts.
• Manage execution of programs through team.
• Coordinate with external vendors/agencies to execute projects.
• Develop and manage project timelines and budgets.
• Communicate project status and budget to clients.

Skills

Ecommerce marketing

Amazon/Instacart experience

Project management

Retail media networks

Strategic thinking

Attention to detail

Communication skills

Education

Bachelor's degree in advertising, marketing, business, or related field

Job description

Company Description

Mars United℠ Commerce is a global commerce marketing practice that aligns people, technology, and intelligence to make the business of our clients better today than it was yesterday. Our worldwide capabilities coalesce into four key disciplines --- Strategy & Analytics, Content & Experiences, Digital Commerce, and Retail Consultancy --- that individually deliver unmatched results for clients and collectively give them an unparalleled network of seamlessly integrated functions across the entire commerce marketing ecosystem. These disciplines are powered by our industry-leading technology platform, Marilyn®, which helps marketers understand the total business impact of their commerce marketing activation, enabling them to make better decisions, create connected experiences, and drive stronger, measurable results. Learn more at https://www.marsunited.com/.

Overview

We are seeking a Manager, Ecommerce. Please note, this is not a sales role. Ideal candidates must have CPG or shopper marketing agency-related experience including working with Amazon or Instacart. Candidates must reside within a commutable distance from our Mars United Commerce office in Detroit (Troy) or New York for a hybrid work schedule.

Primary Responsibilities

• Work with the internal cross-functional team (Strategic Planning, Media, Client Leadership and Creative) to develop optimal and actionable strategies, concepts and tactics
• Have a strong understanding of media capabilities from Search to Display
• Manage the implementation of key client projects
• Build strong working relationships with assigned retailer client contacts
• Manage execution of approved programs through team
• Work with external client vendors/agencies to execute projects as assigned
• Approach and manage partnership relationships with other manufacturers or properties
• Identify retailer direct and manufacturer platforms
• Develop and manage project timelines and budgets
• Manage communication of project status and budget to client teams
• Work hand-in-hand with internal teams on planning and implementation of retail marketing extensions of brand and category programs (national retainer clients)
• Manage client approval process
• Measure post-promotion results using agency and client-provided data
• Be comfortable using AI in media planning, execution, and program wrap up
• Some travel required

Skill Sets Required

• Bachelor's degree in advertising, marketing, business, or related field
• 5-7 years' experience in marketing in ecommerce in Amazon or Instacart
• Proven Project Management experience
• Experience working with retail media networks and media vendors
• Strategic thinking in the development of Shopper Marketing programs and management of day-to-day business
• Sound decision making skills based in industry knowledge
• Passion about business -- always thinking of ways to improve/grow assigned client/business
• Strong listening skills and attention to detail
• Excellent verbal, written, presentation and interpersonal skills
• Desire to dig in and do what's needed to get the job done right

Additional Information

The Power of One starts with our people! To do powerful things, we offer powerful resources. Our best-in-class wellness and benefits offerings include:

• Paid Family Care for parents and caregivers for 12 weeks or more
• Monetary assistance and support for Adoption, Surrogacy and Fertility
• Monetary assistance and support for pet adoption
• Employee Assistance Programs and Health/Wellness/Comfort reimbursements to help you invest in your future and work/life balance
• Tuition Assistance
• Paid time off that includes Flexible Time off Vacation, Annual Sick Days, Volunteer Days, Holiday and Identity days, and more
• Matching Gifts programs
• Flexible working arrangements
• 'Work Your World' Program encouraging employees to work from anywhere Publicis Groupe has an office for up to 6 weeks a year (based upon eligibility)
• Business Resource Groups that support multiple affinities and alliances

The benefits offerings listed are available to eligible U.S. Based employees, are reviewed on an annual basis, and are governed by the terms of the applicable plan documents.

We also offer medical and voluntary benefits to our freelancers and temporary employees. Voluntary benefit options include supplemental medical insurance, transportation, and parking benefits, legal benefits, pet insurance, and auto and home insurance. You must be actively employed for 90 consecutive calendar days in order to be eligible for Publicis medical and voluntary benefits.

Mars United℠ Commerce is an Equal Opportunity Employer. Our employment decisions are made without regard to actual or perceived race, color, ethnicity, religion, creed, sex, sexual orientation, gender, gender identity, gender expression, pregnancy, childbirth and related medical conditions, national origin, ancestry, citizenship status, age, disability, medical condition as defined by applicable state law, genetic information, marital status, military service and veteran status, or any other characteristic protected by applicable federal, state or local laws and ordinances.

If you require accommodation or assistance with the application or onboarding process specifically, please contact [e-mail].

All your information will be kept confidential according to EEO guidelines.

Compensation Range: USD $81,225.00 - USD $120,159.00/Annually. This is the pay range the Company believes it will pay for this position at the time of this posting. Consistent with applicable law, compensation will be determined based on the skills, qualifications, and experience of the applicant along with the requirements of the position, and the Company reserves the right to modify this pay range at any time. Temporary roles may be eligible to participate in our freelancer/temporary employee medical plan through a third-party benefits administration system once certain criteria have been met. Temporary roles may also qualify for participation in our 401(k) plan after eligibility criteria have been met. For regular roles, the Company will offer medical coverage, dental, vision, disability, 401k, and paid time off. The Company anticipates the application deadline for this job posting will be 7/14/2026.