Managers
Dana Atchley
Senior International Tax Attorney
Position
Brix + Partners LLC
Admission
Education
Experience
Competencies
Senior International Tax Attorney
Since 2015
Attorney at Law
J.D., University of Notre Dame
LL.M., New York University
Tax Attorney at various law
firms
Tax advice for international clients in the fields of treaty law, corporate tax law, Mergers & Acquisitions, estate tax law,
and tax criminal law.
Sergio Cattaneo
Tax Director
Position
Brix + Partners LLC
Admission
Education
Experience
Competencies
Tax Director
Since 2024
Certified Public Accountant
Dottore Commercialista e Revisore Legale
M.S. in Business Administration (Cum Laude), Pavia University
B.S. in Business Economics, Pavia University
More than fifteen years of experience in international tax and accounting as a Manager, Senior Manager, and Principal at various auditing and tax consulting firms (including the “Big 4”)
Tax and accounting support for
international clients in the areas of tax planning, compliance, and advisory
services
Barbara Eigel
Senior Manager (Accounting)
Position
Brix + Partners LLC
Admission
Education
Experience
Competencies
Senior Manager (Accounting)
Since 2018
Certified Public Accountant
Dipl.-Kffr. (Univ.) Universität Erlangen-Nürnberg
KPMG (Assurance) München and
New York,
Bayerische Versicherungskammer (Head of Accounting, Reporting, Controlling),
Commerzbank (Interne Revision) Nürnberg
Preparation and analysis of annual financial statements in accordance with HGB, GAAP, and IFRS, as well as budgeting, forecasting, reporting,
and controlling
Liliana Flores
Manager, Accounting
Position
Brix + Partners LLC
Admission
Education
Experience
Competencies
Manager, Accounting
Since 2018
Tax Associate
C.P.A. (Escuela Bancaria y Comercial, Mexico),
Specialization in finance (Universidad
Panamericana, Mexico),
M.B.A. (Hochschule Bremen – School of
International Business, Germany)
DORMA Huppe Raumtrennsysteme GmbH +
Co. KG (bookkeeper),
Commerzial Treuhand GmbH (auditor),
Direct Fruit Marketing DFM GmbH (bookkeeper),
UCB de Mexico S.A. de C.V. (bookkeeper),
HSBC Mexico, S.A. fka Bital S.A. (bookkeeper)
Leadership and supervision of the Accounting Department,
Analysis of annual accounting record,
Revision of financial statements in accordance with GAAP,
Preparation of reports for upper management.
Sunny Shen
Junior Tax Manager
Position
Brix + Partners LLC
Admission
Education
Experience
Competencies
Junior Tax Manager
Since 2026
Certified Pubic Accountant
M.S. in Business Accounting, University of Colorado - Boulder
Extensive private and public accounting experience advising domestic and international entities across diverse sectors, including high-growth startups, multinational corporations, complex partnerships, high-net-worth individuals, and small businesses. Practice background spans corporate ASC 740 tax provisions through public-company readiness, US federal and multi-state compliance, cross-border operations, and US/Canadian indirect tax
Full-cycle federal, state & cross-border tax compliance; ASC 740 income tax provisions & public company readiness; international tax planning & structuring; US sales & use and Canadian GST/PST; tax workflow & process implementation