Meet the Team


Henry Martinez served as Senior Vice President of Human Resources and Chief Human Resource Officer for CST Brands until the company was purchased by Alimentation Couche-Tard in June 2017.

Henry served on the CST Executive Team and helped establish CST as a public company in May 2013 as a spin-off of Valero Energy Corporation. After the spin, much of his time was spent establishing independent and strategic HR processes, systems and programs for the new company while also supporting Leadership in establishing a People First culture. Prior to CST, served as Vice President of Human Resources for Valero Energy Corporation and achieved 19 years of combined service.

Throughout the 19 years of combined service, Henry provided direct oversight and guidance to various human resource related functions including, company culture, talent acquisition, talent management, total rewards, HR communications, leadership, integration projects, HRIS along with international oversight.

As an executive, Henry was known as a people-oriented leader with strong relationship building skills, a practical thinker with natural instincts to operate efficiently and cost effectively. When not at work, Henry enjoys spending time at home with his wife and their two beautiful daughters.

Henry Martinez can be contacted at or by calling 210.874.1931 Ext. 101.


Kristina Tijerina received her Bachelor of Business Administration in Finance from the University of Texas at Austin. Upon graduation, Kristina began her professional career as a revenue Accountant for ExxonMobil in Houston, TX. Although this role was fulfilling, it did not touch all aspects of Kristina’s personality, so she transitioned to a new and different challenge of being a Pharmaceutical Sales Representative for Merck & Company. After 7 years of sustained success participating and supporting high performance teams, she made the difficult decision to put her professional career on hold to take on the most important role of all, being a full-time Mom and focusing on raising three beautiful children.

Mosaic Human Capital Solutions has provided a wonderful opportunity for Kristina to re-enter the workforce. In addition to handling all the payroll, accounting and financial analysis for the firm, she will also be engaged with the evaluation and placement of finance and accounting talent. In her free time, Kristina volunteers as the Treasurer of the Huebner Elementary PTA. She also enjoys Pilates, cooking and beach vacations with her family.

Kristina Tijerina can be contacted at or by calling 210.874.1931 Ext. 102.


Yolanda Molina received her Bachelor of Business Administration in Management from the Texas A&M International University and holds the Human Resources Project Management Certification from the American Academy of Project Management. Upon graduation, Yolanda began her professional career as purchasing agent for the City of Austin, Austin Energy Financial Services group in Austin, TX. A few years later, Yolanda transitioned into the financial institution profession making a huge impact at the Laredo National Bank, in Laredo, Tx. in the capacity of Benefits & Salary Administrator in Human Resources. After moving to San Antonio, Yolanda excelled as Human Resource Manager providing leadership and solid relationships with management while providing HR solutions by helping them build the HR infrastructure through technology, compliance, and people in the adult beverage industry.
Yolanda’s expertise includes recruitment, talent management, organizational development, performance management, training and development, leadership, and high-level management coaching and is fully bilingual.  Yolanda is passionate about helping organizations make the most of their resources and talent and helping individuals make the most of their job search. In addition to her accomplishments in Human Resources, Yolanda is an active member of many prominent HR organizations including the Society for Human Resource Management (SHRM) both on the national and local level and The Hispanic Women’s Network of Texas where she served as Vice Chair Communication/Public Relations. When not at work, Yolanda enjoys spending time with her family, reading, and listening to music.

Yolanda Molina can be contacted at or by calling 210.874.1931 Ext. 104