Client Success Manager Jobs in Boston, MA

Overview
How You'll Make an Impact
As Senior Principal on the Client Success: Marketing Solutions team at Epsilon, you'll serve as the primary point of contact for our paid media partners on the Starcom team. In this role, you'll bring together strategic cases and audience data solutions in support of an enterprise dining account. We're looking for a leader who can advocate for audience data across the paid media ecosystem-articulating the value of existing data, representing data collection strategies, and keeping decisions grounded in a clear understanding of the customer experience. As a member of the Client Success team, you'll drive adoption of data and technology solutions that expand data utilization for strategic planning through strong cross-functional collaboration. You will engage directly with Epsilon product and delivery teams, translate technical concepts into meaningful conversations with clients and agency partners, and drive tangible outcomes. You'll also identify and initiate workstreams that advance top-tier Epsilon People Cloud products and ensure strong associated services delivery.

What You'll Achieve

• Represent Epsilon People Cloud products and solutions today and define a clear vision for future growth by proposing new use cases, translating requirements, and shaping roadmaps and timelines.

• Build cross-functional alignment with agency partners and internal delivery leaders to enable the effective use of identity and 1P/3P data for paid media use cases with understanding of connection to CRM use cases to support a total audience profile.
• Develop and manage a technology and data activation plan that advances account objectives and drives measurable client outcomes.
• Streamline engagement delivery by improving the quality and value of identity-based audiences and increasing their effectiveness across channel partners.
• Serve as a steward of data governance-ensuring privacy, legal compliance, and appropriate use of 1P and 3P datasets across activation and measurement.
• Operate effectively in a large, multicultural, geographically dispersed, matrixed organization-navigating collaborators, priorities, and shared ownership.
• Partner closely with Campaign Operations, Product Delivery, Audience Strategy, and Analytics to ensure accurate, consistent representation of technical and data capabilities.
• Lead as a MarTech partner by orchestrating across multiple products and solutions, calibrating level of effort, expectations, and capabilities across the paid media ecosystem.
• Ensure high-quality delivery of identity-based products by working directly with delivery teams to track progress, address risks, and drive to completion.

Who You Are

• What you'll bring with you:
  • Experience working in or with Paid Media agencies and demonstrating identity data as part of the audience targeting strategies
  • Working knowledge of data collection practices across the customer lifecycle and journey, including anonymous and anonymized data to enable customer insights, targeting, activation, and measurement.
  • Strong executive communication skills using PowerPoint and other visual tools to translate complex concepts into clear, compelling narratives.
  • Ability to define a future-state vision and clearly map the path to achieve data and technology goals, accounting for constraints, dependencies, and tradeoffs.
  • Proactive, collaborative attitude with a willingness to support a cross-agency community focused on prospecting and engaging existing customers.
• Why you might stand out from other talent:
  • Experience positioning clean room and/or CDP capabilities with internal collaborators and clients in support of a long-term strategic plan.
  • Deep understanding of AdTech/MarTech stacks, data flows and data ecosystem, including how identity, measurement, and activation connections across platforms.
  • Familiarity with QSR or franchise-based point-of-sale and offline datasets, and how to use them to enrich digital identity profiles.
  • Experience producing executive-ready outputs (e.g., tech and data health summaries, quarterly progress reports) that connect day-to-day delivery to forward-looking growth plans.

Click here to view how Epsilon transforms marketing with 1 View, 1 Vision, 1 Voice.

Additional Information
When You Join Us, We'll Create Something EPIC Together
Epsilon is a global data, technology and services company that powers the marketing and advertising ecosystem. For decades, we've provided marketers from the world's leading brands the data, technology and services they need to engage consumers with 1 View, 1 Vision and 1 Voice. 1 View of their universe of potential buyers. 1 Vision for engaging each individual. And 1 Voice to harmonize engagement across paid, owned and earned channels.

Epsilon's comprehensive portfolio of capabilities across our suite of digital media, messaging and loyalty solutions bridge the divide between marketing and advertising technology. We process 400+ billion consumer actions each day using advanced AI and hold many patents of proprietary technology, including real-time modeling languages and consumer privacy advancements. Thanks to the work of every employee, Epsilon has been consistently recognized as industry-leading by Forrester, Adweek and the MRC. Epsilon is a global company with more than 9,000 employees around the world.

Our pillars aren't just words. They're how we show up every day.

• People centricity: We focus on employee well-being in an environment where colleagues truly care about each other.
• Collaboration: We work together, support one another, and collectively achieve goals.
• Growth: There are endless opportunities for growth through learning, development and career advancement.
• Innovation: We drive progress through cutting-edge solutions and forward-thinking approaches.
• Flexibility: We've created a balance between work and personal life, and we encourage adaptability to solve problems creatively.

Our values guide us to create value for our clients, our people and consumers.

• Act with integrity
• Work together to win together
• Innovate with purpose
• Respect all voices
• Empower with accountability

These pillars and values are our foundation-shaping our culture, guiding our decisions, and uniting us in common purpose.

Because You Matter
As an Epsilon employee, you deserve perks and benefits that put you, your family and your finances first. Our benefits encompass a wide range of offerings, including but not limited to the following:

• Time to Recharge: Flexible time off (FTO), 15 paid holidays
• Time to Recover: Paid sick time
• Family Well-Being: Parental/new child leave, childcare & elder care assistance, adoption assistance
• Extra Perks: Comprehensive health coverage, 401(k), tuition assistance, commuter benefits, professional development, employee recognition, charitable donation matching, health coaching and counseling

Epsilon benefits are subject to eligibility requirements and other terms.

Epsilon is an Equal Opportunity Employer. Epsilon's policy is not to discriminate against any applicant or employee based on actual or perceived race, age, sex or gender (including pregnancy), marital status, national origin, ancestry, citizenship status, mental or physical disability, religion, creed, color, sexual orientation, gender identity or expression (including transgender status), veteran status, genetic information, or any other characteristic protected by applicable federal, state or local law. Epsilon also prohibits harassment of applicants and employees based on any of these protected categories. Epsilon will provide accommodations to applicants needing accommodations to complete the application process. Please reach out to LeaveofAbsence@epsilon.com to request an accommodation.

For San Francisco Bay and Los Angeles Areas: Epsilon will consider for employment qualified applicants with criminal histories in a manner consistent with the City of Los Angeles' Fair Chance Initiative for Hiring Ordinance and San Francisco Police Code Sections 4901-4919, commonly referred to as the San Francisco Fair Chance Ordinance. Applicants with criminal histories are welcome to apply.

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Compensation Range: USD $128,000.00 - USD $192,000.00/Annually. This is the pay range the Company believes it will pay for this position at the time of this posting. This role may also be eligible for bonus or incentive compensation. 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 8/3/2026.