Discover who makes the program happen

It takes a diverse group of contributors to shepherd a wide array of partners and support a massive global business, of which this is only a sample:

Reanne Berkstresser

Director of EPN 

With eBay since 2015

Reanne leads the Partnerships business, delivers opportunity for valued partners as well as eBay buyers and sellers, and drives strong financial performance for eBay. Reanne has held a number of roles across various marketing teams and, prior to eBay, Reanne worked in financial risk consulting.   

Best eBay find: My daughter’s favorite pajamas, which were discontinued - and in the next size up at that!


Dennis Ferrell

Head of Business Development 

With eBay since 2022

Dennis is charged with spearheading the growth of eBay’s Partner Network base by identifying and onboarding new, strategic partnerships. Before eBay, Dennis worked in various Partnership and Business Development roles for Yahoo, YouSendIt, Inktomi and IAC in addition to advisory roles for several startup ventures. 

Best eBay find: All kinds of golf and cycling gear!

Yianna Konstandinou

Partnerships Lead, Australia

With eBay since 2022

Yianna leads the eBay Partner Network for Australia. She is responsible for identifying new opportunities, while also maintaining and leveraging existing relationships. Prior to eBay, Yianna commenced her time in the Affiliate industry at an agency back in 2016, and has since had experience in client-side and publisher settings working across Finance, Marketplace, Travel, Retail and Telco verticals. 

Best eBay find: An outrageous elf costume for my dog Archie - he won "best dressed"!

David Munoz

Manager, Global Customer Support

With eBay since 2019

David leads our communication and partner support teams. Prior to eBay, David worked in marketing and management roles with companies like Nielsen Media Research and Microsoft.

Best eBay find: A 2003 Apple eMac that I purchased for my kids to play vintage edutainment games. 

Martin Freyberg

Head of Growth and Partner Success

With eBay since 2020

Martin consults on technical integration for eBay’s European partners. Together with Tien, he is also responsible to drive growth to eBay through innovations and new technical solutions. 

Best eBay find: Heavy Metal patches of all kinds of bands!

Ross Mallett

Head of Partner Management

With eBay since 2015

Ross identifies new opportunities with our most strategic global partners. Before eBay, Ross worked on a variety of strategic initiatives in the world of gaming  - leading monetization and retention efforts for DoubleDown Interactive; senior franchise marketing manager for PopCap Games; and was the Director of Marketing for WildTangent.

Best eBay find: Michael Jordan '86-87 Fleer Rookie Sticker - I realized that I had three of them in my basement.

Hadas Shahak Ben-Horin

Senior Growth Manager 

With eBay since 2019

Hadas leads growth and strategic initiatives for eBay, and owns the Go-To-Market strategy and execution process for eBay Partner Network products and programs. Prior to eBay, Hadas worked in various marketing and product roles at Google and startup companies across the US, Israel, and Ireland.   

Best eBay find: Vintage jewelry gold clasps that completed my handmade designed necklace - the set turned out amazing!

Erin Stoner

Product and Growth Solutions Manager 

With eBay since 2012

Erin keeps our channel competitive in the affiliate world by conducting competitive analysis, managing the channel’s product backlog, and working with cross-functional stakeholders to drive requirements to deliver internal and external value.

Best eBay find: 50” 4K Ultra HD TV, Polarized Ray-Ban Aviators, or a hot tub.



Lucia Palombino

Partnerships Lead - France, Italy and Spain

With eBay since 2019

Lucia drives revenue growth and partnership opportunities for the network across the French, Italian and Spanish (FRITES) markets. Before eBay, she worked for five years as an account manager for Tradedoubler Italy, where she built up her experience with affiliate and performance marketing across a varied portfolio of advertisers. Before that, she worked as a media planner for an agency that specialized in performance marketing solutions.

Best eBay find: A vintage Casio watch for my boyfriend that was identical to the one he had as a kid.

Dorota Townsend

Partnerships Lead, Germany 

With eBay since 2018

Dorota leads the network for German partners where she seeks out new business, establishes new partnerships, and leverages new opportunities. Before eBay, she worked for nearly a decade in online travel at TripAdvisor, where she was also responsible for strategic partnerships.   

Best eBay find: A dream Benetton jumper. That felt good!

Edoardo Spadaro

Technical Integration Growth Specialist

With eBay since 2019

Edoardo supports eBay’s European partners with technical integrations. His main area of focus is providing EPN partners with technical documentation, information, and practical examples about Buy APIs integrations that can help drive incremental growth.

Best eBay find: OLYMPUS OM-SYSTEM Lens, Zuiko Auto-Zoom 65-200mm

Mariia Ruskykh

Business Operations Specialist 

With eBay since 2020

Mariia leads the SOX Audit processes, ensures compliance with regulations teams, and assists partners with GDPR-related requests. Together with Martin, she also consults partners on technical integration issues.

Best eBay find: Favorite set of suitcases - have been using this set for all my travels for more than 6 years now.

Riccardo Raggioli

Business Operations Specialist 

With eBay since 2020

Riccardo leads Data Council Audit projects and helps to protect one of eBay's most valuable assets - data. He also collaborates with the EPN team to establish and optimize any existing processes that need refreshing! Before eBay, Riccardo worked for companies such like Saxo Bank and Amazon.

Best eBay find: Retro basketball shoes from '84 - these are near impossible to find anywhere else!

Steven Silveira

Technical Integration Growth Specialist

With eBay since 2022

Steven consults on technical integration for eBay’s North American and Australian partners. He is responsible for providing technical solutions that aim to grow the business of both eBay and its partners.

Best eBay find: Callaway JAWS wedge (cheaper than found in stores!)

Aditi Upmanyu

Business Process Analyst

With eBay since 2020

Aditi manages the monthly payout process for the eBay Partner Network and ensures that global partners are paid accurately and on time - all with a bow on top!

Best eBay find: I’m always on the hunt for Funko Pop! deals and the most recent one that caught my eye was a Ronald McDonald Funko Pop!

Mary Claire Romano

Partnerships Lead, North America

With eBay since 2016

Mary Claire manages the North America Partner portfolio, and is focused on optimizing existing partnerships and identifying new opportunities for growth. Mary Claire has been at eBay since 2016, and started her eBay career on EPN as a financial analyst. After her first job on EPN, Mary Claire worked in other roles at eBay across Paid Search, Strategic Partnerships, and Customer Marketing before returning to EPN in 2022.  

Best eBay find: a discontinued pair of skis 

Rebecca Mangaroo

Partnerships Lead, United Kingdom 

With eBay since 2022

Rebecca manages the UK region for the eBay Partner Network. She is responsible for building and maintaining existing relationships and identifying new opportunities. Prior to eBay, Rebecca worked in the affiliate industry across numerous roles with companies such as Expedia Group and Omnicom Media Group.

Best eBay find: Burberry Classic Trench Coat for £400. I was over the moon to find this luxury item on eBay in such good condition at an affordable price.

Casey “Mimi” Seyler

Business Development Lead, North America

With eBay since 2022

Mimi supports the growth of eBay’s Partner Network by identifying and onboarding new, strategic partnerships alongside Dennis. Prior to eBay, Mimi worked in various marketing and public relations roles, supporting clients and partners alike in the luxury, finance, and e-commerce spaces.

Best eBay find: A turntable needle for my vintage Sony record player - they don’t make them anymore!


Giovanni Mautone

Senior Technical Program Manager

With eBay since 2013

Giovanni drives eBay Partner Network projects and solutions, spearheading GTM strategies and leading cross-functional initiatives. He identifies growth opportunities with partners and matures initiatives to support the future growth of the eBay Partner Network. Previously, Giovanni led eBay's Seller Technical Integration team, leveraging technology to scale merchants' businesses. He has experience as a solution architect, project manager, and quality assurance professional, delivering high-quality, complex projects, including multi-service platforms for major telecommunications operators. Giovanni is committed to identifying and implementing innovative solutions that help eBay and its partners achieve growth objectives. He strives for measurable results and continuous improvement across the eBay Partner Network.

Best eBay find: My eBay jackpot was a gas valve and thermocouple that brought my decrepit boiler back to life. No store in London had them, and I thought I'd never find them. But lo and behold, they arrived at my doorstep within a day, like a winter miracle. My house was finally warm enought to make my toes wiggle with joy.