Btobbes Book a free call

Who you’ll be talking to

Btobbes is two consultants. Start with a free half hour with Brendan, or book a paid hour with whichever of us fits the question.

Free call
30 minutes, on video, with Brendan
Paid hour
$400, paid by card when you book
Engagements
$10,000 a week or $40,000 a month, or a custom package
01 Brendan Tobin

Brendan Tobin

Identity verification, payments fraud and KYC/AML

Stanford MS&E, Y Combinator W21, Scale AI

in/brendanltobin on LinkedIn Book time with Brendan Free 30-minute call with Brendan

Brendan advises fintechs and online platforms on payments fraud and identity verification. As a technical program manager at Scale AI from 2023 to 2025, he deployed ID verification and risk profiling to more than 10 million users in over 100 countries, with KYC/AML and OFAC watchlist screening and checks against government identity sources. Before Scale he co-founded Purpose Finance (Y Combinator W21), where as COO he ran finance and compliance and built the card and ACH fraud models. Earlier he worked on consumer lending at Figure and on credit risk and pricing models for Credit Karma’s personal loan business.

Talk to Brendan about

  • Identity verification
  • KYC/AML and OFAC
  • Payments fraud
  • Deepfakes and bots
  • Credit bureau data
  • Security certifications

Career

  1. BtobbesConsultant2026–
  2. Scale AITechnical Program Manager2023–2025
  3. Purpose Finance (YC W21)Co-founder and COO2021–2023
  4. FigureBusiness Associate2019–2021
  5. DHVCAssociate, fintech investments2018–2019
  6. Credit KarmaSenior Analyst2016–2018
  7. SamsungBusiness Analyst2015–2016

Education

  • Stanford UniversityMS, Management Science and Engineering2015
  • University of ArizonaMS, Materials Science and Engineering2014
  • University of ArizonaBS, Materials Science and Engineering2013
02 Dirk Lennarz, PhD

Dirk Lennarz, PhD

Payments fraud and risk analytics

PhD, Heidelberg, Scale AI, AlixPartners

Book time with Dirk

Dirk brings a decade of payments and identity fraud work and the statistical training of a physicist. At TikTok he cut the rate of 3DS challenges by 40% and VIP risk declines by 30%; at Amazon his rules and models reduced chargeback dollars by 60% in a major EU market; at Scale AI his detection rules stopped up to $100K a week in fraudulent payouts. A doctorate from Heidelberg University in 2012, for research at the Max Planck Institute for Nuclear Physics, led to five years as a postdoctoral researcher at Georgia Tech and Michigan State University, modeling experimental backgrounds and testing data for astrophysical signals. In 2017 Dirk joined AlixPartners in Atlanta as a consultant and data scientist, rising to Vice President. Since 2020 he has worked on identity and fraud at Equifax, buyer risk prevention at Amazon, payments fraud strategy at TikTok U.S. Data Security and, most recently, as Lead Technical Program Manager on Scale AI’s Trust and Safety team.

Talk to Dirk about

  • Payments fraud
  • Chargebacks and disputes
  • Fraud strategy
  • Identity fraud
  • Detection models
  • Statistical modeling

Career

  1. Scale AILead Technical Program Manager, Trust and Safety2024–2026
  2. TikTok U.S. Data SecurityFraud Strategy Expert, Payments2023–2024
  3. AmazonApplied Scientist, Buyer Risk Prevention2021–2023
  4. EquifaxData Scientist, Identity and Fraud Solutions2020–2021
  5. AlixPartnersVice President, Consultant and Data Scientist2017–2019
  6. Georgia TechPostdoctoral researcher2016–2017
  7. Michigan State UniversityPostdoctoral researcher2015–2016
  8. Georgia TechPostdoctoral researcher2012–2015

Education

  • Heidelberg UniversityPhD (Dr. rer. nat.), Physics2012
  • RWTH Aachen UniversityDiplom, Physics2009

How booking works

  1. Start with a free call

    Thirty minutes, on video, with Brendan, at no charge. Say what you’re working on, and we’ll tell you whether and how we can help.

    Free call with Brendan

  2. Or book a paid hour

    $400 for an hour with either of us, paid by card in Zoom Scheduler when you book. Slots open at short notice, so you can book for the next day or two.

    Good uses of the hour: a vendor shortlist for identity verification or KYC, a review of your fraud rules and models, a KYC program your bank partner will accept, a plan for deepfakes and bots at onboarding, or what SOC 2 or PCI will take.

    Book Brendan Book Dirk

  3. Get the invite

    You get a calendar invite with the Zoom link.

Longer engagements

  1. Full time, by the week

    $10,000 a week for one of us, full time, on your problem.

  2. Full time, by the month

    $40,000 a month, for work that needs a longer run.

  3. Custom packages

    Part time, a fixed scope, a retainer: we’re glad to shape a package around the work. The weekly and monthly rates are where the conversation starts.

    Email Brendan Free call with Brendan

Booking through Zoom Scheduler

Book Brendan Tobin

Identity verification, payments fraud and KYC/AML

Scheduler

The Zoom Scheduler booking page loads here once the booking links are live.

Host
Brendan Tobin
Length
One hour, on video
Price
$400, paid at booking