Websites
Summary
Skills
Work History
Education
Certification
Timeline
AdministrativeAssistant
TAMIA HURST. MAHR, PHR

TAMIA HURST. MAHR, PHR

Fairfield Township

Summary

Senior People Partner with 10+ years of experience advising executive teams in global, regulated, and high-growth technology and fintech environments-known for entering moments of inflection to scale people systems, enable leaders, and build durable organizational foundations. Brings deep expertise in organizational effectiveness, workforce and talent strategy, leadership assessment, and change leadership, translating complex business challenges into scalable people solutions.

Skills

  • HR Strategy & Execution
  • Organizational Design
  • Talent Strategy
  • Succession Planning
  • Change Management
  • Executive Coaching
  • DEI Strategy
  • HR & People Analytics
  • Executive Recruiting
  • Organizational Effectiveness
  • Employee Relations
  • Workforce Transformation

Work History

HRBP Lead- HRBP Enablement & Associate HRBP

Block (Subsidiaries: Square, CashApp, Tidal, Afterpay)
2025 - Current

Lead HR Business Partner and people manager advising C-suite Engineering executives within Square’s Food & Beverage ecosystem. Led organizational design, talent and performance strategy, and change initiatives tied to revenue growth, while shaping enterprise people strategies and HR enablement for scalable deployment and leading a global team of Associate HRBPs.

  • Led a global team of 8 Associate HR Business Partners in Engineering, enhancing HR capability, role clarity, and performance management to support scalable execution aligned with revenue-focused product priorities.
  • Partnered with HR COEs (Talent, Performance, Compensation, Employee Relations, and DEI) to shape enterprise programs through frontline HRBP insight and led HRBP readiness to support business leaders, strengthening adoption, execution consistency, and the HRBP and employee experience.

Senior People Partner - Risk, Legal, Compliance & Customer Support

Mercury Technologies
2023 - 2024

Partnered with C-suite Risk, Legal, and Compliance leaders to build organizational and leadership readiness during a critical scale phase, supporting growth to $500M revenue, a $650M run rate, and a $3.5B valuation.

  • Led human capital strategy for OCC compliance during the Federal Bank Charter application, including leadership hiring, workforce planning, and organizational alignment to ensure regulatory readiness.
  • Owned organizational and talent development strategy, shaping performance systems, leadership capability, and talent assessments to improve organizational health, accountability, and long-term bench strength.
  • Designed and delivered leadership and inclusion interventions that strengthened manager effectiveness and organizational health, achieving an 83% eNPS across an enterprise-wide audience of 175 employees.

Human Resources Business Partner - Trust & Risk

Coinbase
2021 - 2023

Advised Compliance and Legal C-suite leaders in a highly regulated crypto macro environment, enabling MiCA license readiness for European expansion across 27 EU states (~450M users) while supporting executive decision-making in a $3.1B revenue business processing ~$830B in transaction volume.

  • Led human capital strategy for global Compliance and Legal teams, driving retention, organizational design, performance, leadership development, and executive talent strategies across distributed, multi-jurisdiction environments.
  • Built and deployed an enterprise talent review strategy (State of the Union) across approximately 5,000 employees to drive clearer talent signals, succession risk visibility, and more consistent performance outcomes at scale.

Human Resources Business Partner - Diversity Equity & Inclusion

EarnIn
2020 - 2021

Partnered with CTO, CLO and CMO on key organizational priorities in an inaugural Earned Wage Access product; deployed strategic human resources management to align human capital to impactful business objectives.

  • Guided human-capital efforts supporting the launch of an unemployment assistance product during COVID-19, enabling organizational readiness and compliance while contributing to approximately $5M in revenue in 2021.
  • Advised leaders on pandemic response and employee safety, ensuring compliance with evolving CDC guidance and employment regulations during a period of heightened operational and employee risk.
  • Established and scaled EarnIn’s first DEI function, partnering with executives to integrate inclusion into business strategy, planning, and leadership accountability.

Senior Human Resources Business Partner

The Cincinnati Insurance Companies
2018 - 2020

Partnered with executive, senior, and mid-level leadership at a top-25 U.S. property and casualty insurer with approximately $7.5 billion in annual revenue and a diversified commercial and personal lines portfolio.

  • Co-led an enterprise HRIS migration to PeopleSoft affecting approximately 5,000 employees and completed implementation in under six months, improving core HR data integrity, reporting, and scalability.
  • Served as a trusted advisor on complex employee relations and labor matters, ensuring compliant and consistent application of employment law, reducing risk, and supporting sound leadership decision-making.

Organization & Talent Development Specialist

General Electric
2016 - 2018

Within GE’s Global Operations HR team, owned enterprise-wide organization and talent development processes including talent reviews, succession planning, and high potential programs; strengthening leadership pipelines and executive decision making.

  • Led enterprise talent management, spanning succession planning, talent reviews, and high potential development, building durable leadership pipelines and strengthening executive talent decisions.
  • Designed and executed a multi year talent development strategy grounded in capability assessment and data driven intervention that increased manager effectiveness by 25% and improved bench strength across the organization.

Education

Master of Arts - Human Resources Management

University of Cincinnati
Cincinnati, Ohio

Bachelor of Arts - English

Tennessee State University
Nashville, TN

Certification

  • PHR - HRCI Certified Professional

Timeline

Bachelor of Arts - English

Tennessee State University

HRBP Lead- HRBP Enablement & Associate HRBP

Block (Subsidiaries: Square, CashApp, Tidal, Afterpay)
2025 - Current

Senior People Partner - Risk, Legal, Compliance & Customer Support

Mercury Technologies
2023 - 2024

Human Resources Business Partner - Trust & Risk

Coinbase
2021 - 2023

Human Resources Business Partner - Diversity Equity & Inclusion

EarnIn
2020 - 2021

Senior Human Resources Business Partner

The Cincinnati Insurance Companies
2018 - 2020

Organization & Talent Development Specialist

General Electric
2016 - 2018

Master of Arts - Human Resources Management

University of Cincinnati
TAMIA HURST. MAHR, PHR