Senior Manager, New Stream - Sell Side

Dentsu International Americas, LLC; New York (NY); Hybrid; USD 82,000 - 110,000; Full time

Benefits offered by this job

Medical insurance

Dental insurance

Vision insurance

401k

Paid time off

Paid holidays

Parental leave

Disability insurance

Job summary

Dentsu is seeking a Senior Manager for the New Stream Media team to lead client strategy, growth opportunities, and campaign governance. You will manage cross-functional workstreams, partner with suppliers and Retail partners, and drive delivery of high‑quality campaigns in a dynamic environment.

The role requires strong leadership, marketing analytics, and proven ability to translate client priorities into scalable strategies.

Qualifications

• Bachelor's degree in Marketing, Business, Analytics, or related field.
• 4+ years of digital performance marketing experience in eCommerce, retail media, search, programmatic, or related area.
• 2+ years leading retail media or eCommerce programs.
• Experience with retail media platforms, DSPs, search platforms, or related ad tech.
• Strong project management and organizational skills.
• Strong business acumen and problem-solving abilities.
• Excellent written, verbal, presentation, and storytelling skills.
• Experience creating campaign recaps, performance reports, and optimization recommendations.
• Strong analytical mindset with ability to translate data into insights.
• Advanced proficiency in Excel and PowerPoint; large datasets handling.
• Ability to work independently and collaboratively.

Responsibilities

• Serve as the strategic account lead across assigned accounts and develop growth opportunities.
• Own account and campaign workstreams with timelines, deliverables, and milestones.
• Coordinate across suppliers, retailers, vendors, Sales, Planning, Analytics, Activation, and Account Management teams.
• Lead day-to-day campaign execution across setup, QA, launch readiness, pacing, and reporting.
• Monitor campaign performance and develop optimization recommendations.
• Troubleshoot client, supplier, and campaign issues and drive timely resolution.
• Contribute to process improvements, training materials, and best practice documentation.
• Guide junior team members and reinforce consistent ways of working.
• Support ad hoc strategic and operational initiatives in a fast-paced environment.

Skills

Digital marketing

Leadership

Project management

Communication

Analytical mindset

Excel & PowerPoint

Team collaboration

Education

Bachelor's degree

Tools

DSPs

Retail media platforms

Search platforms

Job description

Job Description: The New Stream Media team at dentsu leads strategy, activation, and optimization for a large Retail Media client. We are looking for a dynamic, organized, and highly collaborative leader to join our growing team. This role will report to the Group Director, Commerce & Retail Media. As a Senior Manager, you will serve as the primary strategic partner across your client portfolio, responsible for developing growth strategies, identifying opportunities, solving business challenges, and strengthening client and partner relationships. You will play a critical role in supporting the planning, execution, and ongoing management of retail media campaigns and supplier partnerships, ensuring work is delivered accurately, on time, and with a high level of quality. This role is ideal for someone who can create strong governance and communication practices, manage multiple priorities, and proactively troubleshoot issues ranging from campaign delivery needs to more complex operational or technical challenges.

Responsibilities

• Serve as the strategic account lead across assigned accounts, translating client priorities and business challenges into account strategies and growth opportunities
• Own account and campaign workstreams, ensuring timelines, deliverables, documentation, stakeholder follow-ups, and key milestones are managed effectively
• Build strong relationships and coordinate effectively across suppliers, retailers, vendors, Sales, Planning, Analytics, Activation, and Account Management teams to ensure seamless communication and execution
• Lead day-to-day campaign execution across setup, QA, launch readiness, pacing, and reporting in partnership with internal teams and external partners
• Monitor campaign performance, identify risks or opportunities, and support development of performance recaps and optimization recommendations
• Troubleshoot client, supplier, and campaign-related issues, escalating when needed and driving timely resolution across stakeholders
• Contribute to process improvement initiatives, training materials, documentation, and best practice development
• Provide guidance to junior team members and help reinforce consistent ways of working across assigned accounts
• Support ad hoc strategic and operational initiatives in a fast-paced, evolving environment

Qualifications

• Bachelor’s degree in Marketing, Business, Communications, Analytics, or a related field preferred
• 4+ years of digital performance marketing experience in eCommerce, retail media, search, programmatic, or a related field
• 2+ years of experience leading retail media or eCommerce programs preferred
• Experience working with retail media platforms, DSPs, search platforms, or related digital advertising technologies preferred
• Strong project management and organizational skills, with the ability to manage multiple priorities, competing deadlines, and evolving business needs
• Strong business acumen and problem-solving skills, with the ability to identify opportunities, resolve issues, and drive solutions to completion
• Strong written, verbal, presentation, and storytelling skills, with the ability to communicate effectively across stakeholders and teams
• Experience developing campaign recaps, performance reports, and optimization recommendations
• Strong analytical mindset with the ability to interpret performance data and translate insights into actionable business recommendations
• Advanced proficiency in Microsoft Excel and PowerPoint; experience with formulas, pivot tables, and large datasets preferred
• Ability to work independently while collaborating effectively within a team environment
• Enthusiasm for retail media, eCommerce, and the evolving digital advertising landscape

Additional Information

At dentsu, we believe great work happens when we're connected. Our way of working combines flexibility with in-person collaboration to spark ideas and strengthen our teams. Employees who live within a commutable distance of one of our hub offices, currently located in Chicago, metro Detroit, Los Angeles, and New York City, are required and expected to work from the office three days per week (two days per week for employees based in Los Angeles). Dentsu may designate other Hub offices at any time. Those who live outside a commutable range may be designated as remote, depending on the role and business needs. Regardless of your work location, we expect our employees to be flexible to meet the needs of our Company and clients, which may include attendance in an office.

Benefits

• Medical, vision, and dental insurance
• Life insurance
• Short-term and long-term disability insurance
• 401k
• Flexible paid time off
• At least 15 paid holidays per year
• Paid sick and safe leave
• Paid parental leave

Dentsu also complies with applicable state and local laws regarding employee leave benefits, including, but not limited to providing time off pursuant to the Colorado Healthy Families and Workplaces Act, in accordance with its plans and policies.

For further details regarding Dentsu benefits, please visit www.dentsubenefitsplus.com.

The annual salary range for this position is $82,000-$110,000.

Placement within the salary range is based on a variety of factors, including relevant experience, knowledge, skills, and other factors permitted by law.

Location: New York Brand: Iprospect Time Type: Full time Contract Type: Permanent

Dentsu is committed to providing equal employment opportunities to all applicants and employees. We do this without regard to race, color, national origin, sex , sexual orientation, gender identity, age, pregnancy, childbirth or related medical conditions, ancestry, physical or mental disability, marital status, political affiliation, religious practices and observances, citizenship status, genetic information, veteran status, or any other basis protected under applicable federal, state, or local law.

Dentsu is committed to providing reasonable accommodation to, among others, individuals with disabilities and disabled veterans. If you need an accommodation because of a disability to search and apply for a career opportunity with us, please send an e‑mail [e-mail] clicking on the link to let usknow the nature of your accommodation request and your contact information. We are here to support you.

About dentsu For over 120 years, innovation has been a core tenet of our offering – exploring new ways to reach, engage and nurture relationships with audiences. Together we drive a multiplier effect for clients at a global scale, through the development of Integrated Growth Solutions that are underpinned by our promise to clients: innovating to impact. Be a force for good. Sustainability is a vital part of our business and an important area of focus for our clients. We’re leading the way – helping to build a more sustainable planet. Dream loud. In this moment of transformation, we need our people to be fearless, embracing change and ambiguity, driven by the love for their work and excitement for the future. Team without limits. We create opportunities for connection and collaboration between our colleagues and clients, building a sense of belonging and having some fun along the way. Find out more about us Who we are Our Social Impact Our work