All Martellus Experts are seasoned executives with proven leadership skills and deep functional expertise.

Elpida Argenziano

Loyalty & Retention, Product Management, Premium Customer Experience

Elpida is an innovative marketer with over twenty years of B2B and B2C experience in product management, new product development and strategic partnerships. She spent a decade at American Express where she focused on premium and co-branded products across the consumer and small business divisions. Having held leadership positions on the teams that launched the inaugural Centurion (Black) Card and managed the Platinum Card, she knows how best to communicate with and create compelling value for high-end customers. Elpida also spearheaded marketing and loyalty initiatives for American Express' major co-brand partnerships including Delta, Starwood and Hilton. She is the founder and president of Halaris Marketing, a consulting firm focused on supporting the strategic and tactical needs of clients including American Express, Weight Watchers International, and several start-up businesses. She holds an MBA from Columbia University and a BS degree from Cornell University's School of Hotel Administration.

Kristen Barletta

Email Marketing Strategy, Content Marketing, Brand Positioning, Personal Branding

Kristen Barletta is a seasoned marketer who works with clients to develop digital and content marketing strategies that change minds. With more than two decades of diverse marketing experience, she now works with corporations and nonprofits to design inventive and effective email, digital, brand and content marketing strategies. With a passion for writing, she also copy writes case studies, blogs and white papers on behalf of her clients. She’s recognized for her strategic expertise and her creative, analytics-based approach. Kristen previously worked as director of email marketing for Marriott and The Ritz-Carlton where she was responsible for strategy, design, build, deployment and analysis of the organizations' global email loyalty programs. She also held PR and marketing leadership roles at Sprint, MCI and Georgetown University. Kristen holds a BA in History from Boston College and an MS in Integrated Marketing Communications from the Medill School at Northwestern University.

Lisette Bernstein

Acquisition & Loyalty Marketing, Customer Experience, Strategic Program Management

Lisette Bernstein is an innovative marketing executive with an extensive background in acquisition, CRM, loyalty, brand and operations. She has strong expertise across offline and digital channels and is best known for her success in using data-driven and direct customer insights to deliver transformational, sustainable results. Lisette spent 10 years at American Express (AMEX) where she held a variety of leadership roles in B2B marketing. Most recently, as a Vice President within Global Commercial Payments, she oversaw flagship corporate client events, developed and executed best customer experiences, and led Small Business Saturday 2014. Prior to that, she was responsible for acquiring small business customers across direct-to-consumer marketing channels. Lastly, she transformed the marketing and servicing strategies for new customer on-boarding and the retention save unit, resulting in record-breaking performance and organizational adoption. Before AMEX, Lisette spent several years in management consulting where she led large-scale projects within the financial services sector. Lisette has a B.S. from Cornell University and an M.B.A. from the University of Michigan Ross School of Business.

Holley Cavanna

Direct Marketing,Consumer Data & Research, Customer Experience, Digital Media

Holley is an accomplished media and strategy executive with a track record of driving consumer revenue and leading strategic change. She held several leadership positions in publishing and media. Most recently, Holley was Senior Vice President of Innovation and Strategy at Time Inc. -- responsible for digital, data, and print growth initiatives across Time Inc.’s 24 domestic brands. Other positions include SVP of Style & Entertainment Group, Brand VP of InStyle, and VP New Business development at Time Inc. Holley is an expert in data, research, and consumer marketing – with a track record of growing website traffic, acquiring customers, increasing retention rates, and maximizing customer lifetime value. Holley also has 6 years of strategic planning expertise –leading growth strategies and transformation efforts for Time Inc.’s consumer business after the 2014 spin-off from Time Warner. Holley received her MBA from Columbia University and a Bachelor’s degree from Cornell University. She currently serves on the President’s Council of Cornell Women and two nonprofit boards.

Cara Cook

Customer Acquisition, Marketing Strategy, Brand Communications

Cara Cook is a seasoned marketing executive with significant expertise developing customer acquisition and product management strategies. Cara is the founder and president of Oak Hill Consulting, a boutique firm specializing in strategic and tactical marketing for small businesses. Her most recent engagement involved working with Skillcrush, a leading online learning community, to develop and implement strategies to optimize their marketing channels. Prior to starting Oak Hill, Cara spent 12 years at American Express where she held multiple roles spanning both the B2B and B2C businesses. She developed a proven track record for driving results, leading large cross-functional teams and improving the customer experience through both in-person interactions and digital channels. While in OPEN, the American Express team dedicated to small business, Cara developed the field sales and tradeshow acquisition channels to reach a wider audience. She was responsible for the creation of OPEN lounges at convention centers, resulting in increased customer acquisition and heightened brand awareness. In addition to her professional work, Cara volunteers her time with the Mount Kisco Interfaith Food Pantry, spearheading marketing and communications efforts. Cara graduated from the BBA program at the University of Michigan (Go Blue).

Damaris de los Santos

Digital Brand & Market Strategy, Digital Product Management, Web Usability & User Experience

Damaris de los Santos is a seasoned digital strategist with nearly two decades of experience creating innovative and game-changing digital experiences that engage customers and fuel growth. She is the Founder and President of Tipping Point Edge, a digital marketing consultancy that leverages digital expertise to give businesses the tools to compete with smarter digital strategies. Previously, Damaris was head of the Digital Experience team at OppenheimerFunds, a leading global asset manager, where she was responsible for the firm's digital strategy and the development of award-winning online and mobile platforms for financial professionals and investor experiences. While at Oppenheimer, she was successful in leading and managing cross-functional teams of internal and external resources through the full lifecycle of design, development, and implementation of value-driven digital solutions. Damaris has a rich and vast experience in digital product development, defining and aligning digital roadmaps to meet corporate goals, elevating brand identity, web usability, and user experience. Damaris holds a BA from the University of Maryland at College Park.

Tamra Feldman

Consumer Insights, Product Management, Digital Marketing Strategy & Execution

Tamra provides a unique skillset meshing strategy and execution, particularly surrounding a brand's digital efforts. She has start-up and large corporate experience, and thrives on turning insights into actions. Tamra has expertise in consumer insights, product management, digital marketing strategy and execution, and strategic planning. She leads qualitative primary research work including focus groups, usability testing, shop-alongs and in-depth interviews. Tamra then couples the results with secondary research and competitive/landscape audit findings to provide clients with impactful next steps and opportunities. She is fluent in crafting strategies to build a brand's digital presence and executing these plans, often serving in a general manager/product manager capacity. Tamra excels as a project hub, bringing together functions such as development, design, marketing, and more to create new digital products and bring visions to reality. Prior to consulting, Tamra led marketing & product management for Shop It To Me, an e-commerce start-up, and worked at Gap Inc. in the Consumer Strategy group. She specializes working with women's lifestyle brands and retail clients. Tamra holds a BBA from the University of Michigan.
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Michelle Gethers-Clark

Operational Excellence for Call Centers, Performance Management Systems, Customer Relationship Management

Michelle Gethers-Clark is an accomplished corporate executive, nonprofit leader, author and community leader. Michelle’s professional career spans 32 years. She has celebrated success as a senior vice president for American Express Company and as an entrepreneur. Michelle has held roles with global leadership responsibility in the US, Canada, Philippines and India. She has strong technical skills as a CPA, operations professional, customer relationship management expert, leadership development coach and fundraiser. Michelle’s accomplishments and career have been featured in Ebony, Black Enterprise, Working Mothers, Biz Life and Triad Business Journal. Her affiliations include: Bennett College Board of Trustees, BB&T Advisory Board and the Community Foundation of Greater Greensboro. Her recently published book, The Next Level presents a perspective on leadership. Both strategic and energetic, her mantra is “People follow character and not titles.”

Amy Giddon

Business & Brand Strategy, Insights & Analytics, Partnerships

Amy is a seasoned leader who provides businesses with the clarity and alignment they need to grow, serve customers, engage partners and fulfill employees. As the President of RushCard, Amy revitalized the brand, focused the organization on the most critical metrics and processes, increased key functional competencies and forged strong relationships with industry partners and influencers. She led the Customer Engagement, Product Development, Brand, PR, Data Analytics, Insights and Government Relations teams. At American Express, Amy held leadership roles in Strategic Planning, Marketing, Business Partnerships and Customer Information Management. In each of these roles, she tackled complex issues through a disciplined, data-driven - yet creative - approach that uncovered new opportunities and improved performance. Amy started her career as a consultant at Bain and Company where she worked side by side with clients to develop and implement breakthrough business strategies. Most recently, Amy has devoted her energy to the development of the next generation of leaders at the Athena Center for Leadership at Barnard College. Amy graduated Summa Cum Laude and Phi Beta Kappa from Duke University with a BS degree in Computer Science and Economics.

Tracy Grey

Growth Strategy, Strategic Planning & Execution, Marketing Strategy

Tracy Grey is a former Booz & Co consultant with experience developing successful strategies across a range of industries including consumer products, financial services, technology and manufacturing. Her expertise includes identifying ways to achieve growth, including how to better leverage corporate assets. She has significant experience developing corporate strategic plans, evaluating new growth opportunities, performing and communicating strategic analysis to drive decisions, and developing effective marketing strategies. Tracy's experience spans both external consulting and internal roles at companies like Acxiom where she was Vice President of Corporate Strategy and Industry Analyst Relations, and American Express where she was Vice President of the Strategic Planning Group. Tracy is a graduate of Stanford University and the Harvard Business School.

Lisa Grisafi

Marketing Strategy, Product Development & Management Partnerships, Customer Analytics & Insights

Lisa Grisafi is a seasoned professional who has a proven track record in developing business strategies that drive growth. She adapts well to changing environments and is an expert in the areas of marketing strategy, partnerships, product management and people leadership. Lisa has over 20 years of experience leading diverse teams and individuals at such Fortune 100 companies as American Express and Citigroup. She’s adept at working with internal and external partners to create innovative business opportunities. She has worked with leading financial, travel, retail and lodging companies, targeting both B2B and B2C customer segments to drive results. She’s skilled at managing through challenging situations, navigating across complex organizations and fostering a collaborative environment to help companies achieve success. Beginning her career as a CPA at a top public accounting firm, Lisa has built a strong foundation in accounting and finance. At American Express, she held several leadership roles in Finance, Risk Management and Marketing. She owned and managed core external partnerships and was instrumental in negotiating contracts that drive mutually beneficial value. As a product manager, she developed compelling customer value propositions, created surround sound marketing programs and utilized data and analytics to support key business strategies. Lisa earned a BS degree in Accounting and Business and graduated magna cum laude from SUNY Albany.

Nadina Guglielmetti

Digital Marketing, Social Media, Content Marketing Strategy & Development

Nadina Guglielmetti is a digital and content marketing veteran who has launched and scaled best-in-class onlinel experiences for Fortune 500 companies. She developed and managed Estee Lauder and Origins' first ecommerce sites; while at L’Oreal, she created and rolled out branded websites and a global content marketing strategy across i17 countries. Nadina went on to become Chief Digital Officer at a PR agency, helping brands craft and own their digital presence, including influencing consumer engagement and conversion through social media. She has worked with brands such as Unilever, Microsoft, Target, Kohl’s and Skype. Nadina is an expert at operationalizing digital and content teams, while impacting customer acquisition and business growth. She is co-founder of the mobile, female-focused startup, Jyst and teaches Integrated marketing at NYU.

Leslie Hurst

Marketing & Brand Strategy, Channel & Content Optimization, Influencer & Social Media Strategy

Leslie Hurst is a seasoned, well-rounded and passionate marketing executive. She has deep marketing expertise across all disciplines. In addition she has a proven track record in building marketing strategies and programs from the ground up and leading teams to execute flawlessly against those plans. The majority of Leslie’s career has been at American Express where she developed and led several innovative, award-winning marketing programs and strategies including: Small Business Saturday; Small Business Advertising Campaigns for American Express’ Credit & Charge Cards; OPEN; Women’s Small Business Advocacy social campaigns and Customer Loyalty Marketing Programs. Given Leslie’s long-term focus on serving small businesses, it was only a matter of time until she evolved that passion into starting her own business founding Hurst Consulting LLC in 2014. Hurst Consulting specializes in developing and advising clients on marketing and brand strategies, leading marketing programs, marketing and sales enablement, content marketing and more. Leslie holds a BSE from the Wharton School at the University of Pennsylvania as well as an MBA from Columbia University.

Aline Kassabian

Customer Experience, Business Transformation, Program Office Management

Aline Kassabian is a seasoned professional with a passion for optimizing the customer experience and driving customer engagement and advocacy. She’s a strategic thinker who has extensive experience in leveraging market research to develop and execute complex programs, while collaborating with internal and external partners to drive results. Aline held a variety of customer strategy roles at American Express, including driving the cultural shift from a transactions orientation to a customer engagement focus and designing and launching Relationship Care, American Express’ proprietary customer engagement program. Aline has a reputation for being a leader who drives results through active engagement and developing her team. Aline holds an MBA from Fordham University’s Gabelli School of Business and a BS from Bentley University.

Robin Korn

Marketing, Brand & Product Strategy Customer Engagement & Loyalty CRM, Analytics & Insights

Robin is an accomplished executive with a track record of leading transformational marketing and business strategies. She’s an expert in marketing and brand strategy, product development and management, customer engagement and consumer insights. Throughout her career, Robin has combined her marketing expertise with a general manager mindset using consumer and data-focused strategies to drive business results. Most recently, as EVP of Marketing at the Madison Square Garden Company, Robin was responsible for developing marketing and branding strategies for MSG’s Entertainment productions and its seven venues. She also led the company’s CRM/Customer Engagement, Consumer Insights and Analytics functions. Before that, Robin held a variety of senior marketing and business development positions during a 20+year career at American Express. Notably, Robin spent three years as SVP and GM of the Charge Card Group, managing product strategy and marketing for the flagship Green, Gold, Platinum and Centurion portfolios. Robin also held senior positions in the Small Business, Membership Rewards, Online Banking and Consumer Lending businesses. Robin holds an MBA from New York University’s Leonard N. Stern School of Business and a BA from Rutgers University.

Beth Lacey

Product Development, Customer Experience, People Leadership

Beth Lacey is retired from the American Express Company where she successfully held a diverse set of senior global executive roles for 25 years. She brings her distinguished expertise in designing and deploying exceptional products, services and customer experiences across a broad range of channels. Beth places a maniacal focus on fulfilling customers' needs beyond their expectations. This spans the customer life cycle from product development- creating award winning value propositions in consumer finance to managing a servicing network of 8k care professionals, delivering the highest customer satisfaction ratings in the credit card industry. Beth is a strategic and innovative leader who knows how to get things done. Under her stewardship, revenues grew in double digits, expenses decreased significantly and customer retention rates were a competitive advantage. Beth is the recipient of the Greensboro, NC, Top Women in Business Award and the New York City YWCA Women Achievers’ Academy Award. She serves on the Board of World Pulse and on the Advisory Board for Unleashed, NYC. Beth holds a Bachelor of Science in Accounting from Widener University.

Emily Listfield

Brand Development, Content Strategy & Creation, Media Strategy, Brand Positioning

Emily Listfield combines her experience as an Editor in Chief, an award-winning Chief Content Officer responsible for branding global companies and a bestselling novelist to help brands tell their story. As Chief Content Officer of a renowned PR firm, she oversaw branding and content for global beauty, health, home and lifestyle companies, including Laura Mercier, Shiseido, Skype, The Vitamin Shoppe, Target and PVH, winning Global Gold Sabre Awards for Best Fashion and Beauty Campaign and Best Branded Journalism. As Editor-in-Chief of Fitness Magazine, she orchestrated a complete redesign, resulting in a 50% increase in circulation and the largest advertising issue in its history. She launched Parade Magazine’s cross-platform brand extension, HealthyStyle, creating new revenue streams for a heritage brand. Emily is the author of seven novels, including a New York Times Notable Book of the Year and co-founder of Jyst app on iTunes. She has been a featured panelist at SXSW and has appeared on national television numerous times. Emily is an expert at creative storytelling across all touch points, from brand voice development to tag lines, from comprehensive content strategy to creation. The result: a brand narrative that lodges in consumers’ imaginations.

Barrie Markowitz

Marketing Optimization (digital, social, mobile, conventional), Acquisition & Retention, Brand Development

Barrie is a marketing leader with more than 25 years of experience in the digital content, sports and payments industries. She has deep subscription marketing expertise (acquisition and customer retention), as well as digital expertise. Barrie is an excellent connector who knows how to tap the right resources to accomplish goals. She’s a champion at improving the customer experience to drive loyalty. Barrie currently consults for high growth companies creating new market launch plans, marketing strategies, market segmentation and annual marketing plans.

Susan McBarnet

Brand Positioning & Value Propositions, Marketing Strategy, Customer Research & Analytics

Susan McBarnet is a seasoned brand strategist and marketing professional with 18 years of experience. She is the President & Founder of Eastover Marketing Group, a marketing & communications consultancy that takes a customer-centric approach to reinventing brands making them more relevant in today’s marketplace. Earlier in her career Susan spent ten years at American Express where she honed her expertise in brand and communications strategy development, customer segmentation, research, analytics and strategic planning. She was a Director of Global Brand Management, where she was responsible for evolving the American Express brand to be more relevant to millennials, women and the digital world. She also revamped the value proposition and positioning for the merchant customer base. As a Director in OPEN, American Express’ team dedicated to small business, Susan focused on loyalty marketing. She segmented the customer base, set, executed and measured segment-specific marketing strategies. Susan also founded and ran Brooklyn Babes Running, a successful health and fitness company that empowered women and trained them to run 10Ks & ½ marathons. Susan built the foundation of her career in management consulting. She holds an MBA from NYU’s Stern School of Business and a BS in Neuroscience from Trinity College.

Megan McCambridge

Customer Experience, Marketing & Brand Strategy, Culture Transformation

Megan McCambridge was vice president the Global Brand and Marketing at MetLife. In this role, Megan was responsible for deploying a transformational global customer experience practice. She established a companywide customer-focused orientation by developing motivational behaviors and performance measures to support the customer competency. Prior to joining MetLife, Megan was the vice president of Marketing and Customer Experience at Walgreens. Megan oversaw the creation, development and implementation of marketing programs that drove meaningful differentiation. She also designed a passionate, customer-focused vision, strategy and execution plan that accommodated brand, offering, touch points and people. She implemented a research framework for new products and customer measurement methodologies. Before Walgreens, Megan held various leadership positions at American Express. As the vice president of Acquisition, she managed an innovative cross-selling program for consumer and small business customers. Megan received her undergraduate degree in Business Management from Rutgers University in New Jersey.

Sarah Mitchell

Digital Customer Experience, Strategic Program Management, Marketing Strategy & Execution

Sarah is an accomplished marketing and digital strategist. With the combination of a Fortune 100 background and an entrepreneurial spirit, Sarah brings both strong customer focus and a pragmatic "let's get it done" approach. She is known for developing and executing marketing strategies and capabilities, as well as leading digital transformation efforts, including Agile development practices. An adept communicator, Sarah is a seasoned leader of high-performing teams and an expert at delivering impactful presentations. She spent 14 years at American Express and in her last role there led a team of 15 creating digital standards and programs to improve the customer experience of websites and apps globally, working closely with agencies, and product and engineering teams. Prior to American Express, Sarah spent four years in the retail industry in marketing and merchandising roles for Bloomingdale's and Ann Taylor. She graduated cum laude from the University of Pennsylvania and earned an MBA from the Ross School of Business at the University of Michigan.

Leslie Motter

Operations Management, Human Resources & Leadership Development, Customer Experience

Leslie Motter serves as the chief human resources officer for the Human Resources, Learning and Development and Strategic Planning departments for Make-A-Wish America. Leslie brings over 20 years of leadership in the financial services and human resources industry. She previously held the position of senior vice president and general manager for the Phoenix Regional Headquarters of American Express. There Leslie had general management responsibility for the company’s Phoenix-based card operations, supporting its consumer cards, merchant services, corporate services and small business services. She led a team of 3,500 employees and managed significant call center and customer service operations. She also managed a $235 million budget, including servicing revenues of $7.5 billion annually. Previously, Leslie held leadership roles at Aetna Financial Services, Prudential and The Vanguard Group. Leslie received a bachelor’s degree in communication sciences from University of Connecticut and a master’s degree in organizational behavior from University of Hartford.

Marnie Omanoff

Brand Development & Architecture, Strategic Alliances & Partnerships, Agency Management

Marnie has an extensive career as a brand architect where she works with brands to define and develop unique marketing strategies and solutions to drive revenue and audience growth. Her experience spans both B2B and B2C businesses in the public and private sectors across multiple categories in Fashion, Beauty, Retail, Sports and Financial Services. She is able to look at brands holistically to then craft innovative value propositions, creative, communications and experiences across multiple channels serving both internal and external audiences. Marnie has showcased her expertise by building a centralized, global brand at Foot Locker, creating and launching the sub-brand, OPEN from American Express and by pioneering the mass designer revolution with the brand extension at the luxury start- up Liz Lange @ Target. With her passionate interests in diversity and leadership development, Marnie is a critical member on two non-profit boards. She is one of the founders and executive team members of the Newhouse Network and event co-chair of Syracuse University’s S.I. Newhouse School of Communications. She also serves as an advisory board member for Unleashed NYC. She received a Bachelors of Science degree from Syracuse University: S.I. Newhouse School in Advertising.

Nancy Oron

Brand Strategy, Product Management, Partnership Marketing, Social Activation

Nancy is a result-driven and innovative marketer with over 20 years of experience in creating and overseeing brand strategy, product management and partnership marketing for iconic Fortune 500 Companies. She builds disruptive and differentiated experiences by understanding the customer and building platforms and programs that address their unmet needs. Nancy was with American Express for more than 15 years where she worked in a variety of marketing roles with increasing scope and leadership. Most recently as the Global Head of Brand and Customer Engagement for American Express Travel, Nancy built her team and successfully launched a new brand platform, messaging strategy, lifecycle marketing and digital activations. Her holistic strategy significantly increased awareness, online sales and customer loyalty. Nancy also spearheaded the launch of a global brand platform for American Express Travel’s 100th anniversary celebration – engaging partners, consumers and employees, in a socially based participatory marketing campaign across Instagram, Facebook, Twitter and owned platforms. Nancy was also the Director of the Starwood Cobrand Credit Card where she launched a new value proposition, created a holistic marketing strategy and lead the overall partner relationship. Prior to this role, Nancy oversaw the end-to-end client management of over 30 strategic travel partners in Membership Rewards, American Express' award winning loyalty program as well as new business development. Nancy started her career at Citibank focusing on B2B efforts for the Diners Card Corporate Card. Nancy has her MBA from Cornell University and a BA from Tulane University.

Janet Ott

Business & Brand Strategy, Marketing, Partnerships, Corporate Communications, Sales Support

Janet has spent her professional career driving marketing transformation and excellence. She has a knack for getting to the heart of a business quickly – using her expertise to create Go-To-Market strategies that drive strong customer focus, enable businesses to scale globally and accelerate growth. She marries creativity with business rigor to optimize operations and improve business results. As global chief marketing and communications officer for GfK, she relaunched the brand and drove the digital transformation of the $2 billion technology-driven research firm. She designed the first-ever global marketing strategy and organization and led all marketing functions including branding, digital and product marketing across 100+ markets worldwide. She oversaw all Corporate Communications and Corporate Reputation Management. Janet has also held senior leadership roles -- in the US and Europe -- at American Express, Chase and D&B. She has been the trusted advisor and speechwriter for multiple CEOs and has extensive client management experience. She's a judge for the “B2 Awards”, selecting the best B2B Advertising for the Business Marketing Association. She's also an Adjunct Faculty member teaching Business Communications, and a NJ State Council Member for the Humane Society. Janet holds a BS from Rutgers and an MBA from NYU’s Stern School of Business.

Maryam Paez

Brand Development & Management, Digital Marketing & Social Media Marketing, Strategic Alliances & Partnerships

Maryam Paez is results oriented senior marketing executive with over 22 years of experience in Brand and Customer marketing. She has extensive experience in developing and launching new brands, designing integrated 360 marketing campaigns, building new businesses or products from concept to design and launch, and negotiating partnership agreements. Her recent work has been focused primarily in developing social media marketing campaigns for a b-to-b small business. Maryam has worked in various environments such as larger corporate financial institutions like American Express and JP Morgan to multinational packaged goods company like The Dannon Company where she managed the greek yogurt brand Oikos and launched the first ever Super Bowl commercial. She recently launched an internet start-up focused on driving donations through online purchases. Maryam earned her undergraduate degree from Georgetown University and her MBA from the London Business School. She speaks French, Spanish, Farsi and English fluently.

Ushma Pandya

Business Strategy & Planning, Project Planning & Implementation, Communications & Stakeholder Management

Ushma Pandya works with organizations on addressing their strategic problems. She has a reputation for breaking down complex problems and developing pragmatic solutions that help grow and scale businesses. Ushma has a track record of building relationships and influencing stakeholders to help achieve business objectives. She has worked with organizations in a variety of industries including healthcare, retail, financial services, telecom, consumer products and nonprofits (public health, sustainability, poverty alleviation). She's a noted people leader and manages individuals and teams to achieve impact and personal excellence. She was on the executive leadership team at American Express and was a principal at Booz&Co. Ushma attended Georgetown University, Harvard University and Columbia University.

Daria Reznikova

Customer Experience, Business Transformation, Operations Strategy

With decades of corporate experience and global expertise, Daria’s business instincts, clarity of vision and proven ability to execute have resulted in superior business results. She’s an Expert in customer experience, business transformation, operations and strategic planning. As an executive at American Express (AMEX), Daria held leadership positions across a variety of areas to include Membership Rewards, Servicing Configuration, Digital Servicing, Customer Experience and Business Transformation. Notably, Daria launched a new business for AMEX focused on helping corporate clients and strategic partners achieve a world class customer experience while simultaneously reducing operating expenses. Prior to AMEX, Daria was a consultant for McKinsey & Company, where she worked with senior executives to develop and implement strategies to achieve a superior competitive position. Previous to that, Daria held various positions in accounting and finance, growing from accountant to CFO. Daria earned an MBA in Finance from The Wharton School at the University of Pennsylvania and a Master’s degree in Economics from Moscow State University.


Rosa Sabater

Product Management, Marketing, Customer Experience

Rosa is an accomplished executive with a proven track record of helping companies and individuals achieve breakthrough performance. She’s an Expert in product management, marketing, customer experience and client development. As a member of the senior management team at American Express (AMEX), Rosa held multiple leadership positions, including: general manager of Small Business Charge Cards, general manager of Small Business Loyalty Marketing, head of New Accounts Operations, head of Customer Experience for US Cards and chief marketing officer (CMO) for the OPEN division. As CMO for OPEN, Rosa developed the first sub brand for AMEX and launched Small Business Saturday, a national movement to drive sales to small businesses on the day between Black Friday and Cyber Monday. Prior to AMEX, Rosa was a principal at Booz, Allen & Hamilton, where she led major client relationships for the marketing intensive group. Rosa graduated magna cum laude from Yale University and earned a MBA from The Wharton School at the University of Pennsylvania.

Aldine Shamir

Accomplished Marketing & Customer Experience Executive, CRM Strategist, Transformational Leader

Aldine Shamir is an accomplished marketing executive with deep expertise in acquisition, loyalty and customer experience. Throughout her career, Aldine has combined marketing expertise with her consulting and operations background to create transformational strategies that deliver bottom line results. Most recently, Aldine was Vice President of Customer Relationship Marketing (CRM) for Verizon Wireless where she was responsible for acquiring new customers and deepening loyalty for the consumer business. Prior to that, Aldine held a variety of marketing roles during her 14-year tenure at American Express. Notably, as Vice President of Customer Acquisition, Aldine delivered double digit growth for the small business portfolio by scaling new channels including a digital CRM platform and a proprietary telesales team. Additionally, she held several roles focused on customer engagement across digital and traditional channels. Prior to American Express, Aldine spent several years in consulting leading client engagements across a variety of industries. Aldine holds an MBA from New York University’s, Leonard N. Stern School of Business and a BA from Binghamton University.

Sherry Weiss

Marketing Strategy, Customer Experience/Engagement, Loyalty Program Management, Product Development

Sherry Weiss is a customer centric marketing and experience leader with a passion for creating and delivering best-in-class propositions that drive growth, engagement and retention. Her background has been focused at the intersection of marketing and product, building data driven strategies aimed at driving business performance and customer satisfaction. Sherry’s experience includes the development of omni-channel marketing strategies to drive engagement throughout the customer lifecycle, management of end-to-end customer journeys from concept to market launch and direct leadership of diverse, cross-functional teams. Sherry was Senior Director of Loyalty and Retention at, a rapid growth e-commerce start-up purchased by Walmart in 2016. She was responsible for all omni-channel, existing customer marketing efforts across a base of 5MM and growing. In this capacity, Sherry also led the creation and testing of a variety of loyalty propositions aimed at driving repeat purchase behavior, including the revamp of the Jet Anywhere program. Prior to Jet, Sherry spent 8 years at Citi in the North America Credit Card division, serving in a variety of positions. As Head of Product and Rewards Experience, she was responsible for defining and driving the customer experience strategy across Citi’s 20+ card products and loyalty platforms. Sherry also led customer experience for the Citi ThankYou Rewards program, and was responsible for building and executing a multi-year roadmap that tripled the program’s Net Promoter Score. During her tenure, member engagement improved 20% through the launch of innovative rewards options and the redesign of member communications and servicing touchpoints. A proud Georgetown alumnus, Sheryn received her MBA from the McDonough School of Business and her B.S. in Foreign Service from the Edmund A. Walsh School of Foreign Service. She is an avid international traveler and a lover of all things outdoors, including hiking, kayaking and cycling.