TAM MASEKO-PURNELL
Philadelphia,PA
Summary
Performance-focused Enterprise Account Executive specialized in guiding Fortune 500 organizations through the complete LLM development lifecycle. At Centific, I act as a strategic bridge between enterprise business objectives and technical AI execution, leading consultative engagements that navigate the complexities of RLHF, SFT, and model alignment to ensure clients achieve secure, production-ready AI solutions. My focus is helping organizations transition confidently from experimental AI to robust, enterprise-grade capabilities that deliver measurable business impact.
Overview
10
10
years of professional experience
1
1
Certification
Work History
Client Partner – AI Data Enablement & Digital Globalization Solutions
Centific
New York, NY
05.2022 - Current
- Performance-focused Enterprise Account Executive specialized in guiding Fortune 500 organizations through the complete LLM development lifecycle. At Centific, I act as a strategic bridge between enterprise business objectives and technical AI execution, leading consultative engagements that navigate the complexities of RLHF, SFT, and model alignment to ensure clients achieve secure, production-ready AI solutions. My focus is helping organizations transition confidently from experimental AI to robust, enterprise-grade capabilities that deliver measurable business impact.
- Lead strategic ownership of high-value enterprise accounts across regulated industries, driving expansion, renewals, and new logo acquisition for AI/ML data, Multilingual AI, and model-development solutions.
- Serve as trusted advisor to C-suite, engineering, and AI/ML leaders, guiding adoption of model-training data, post-training evaluation workflows, and safety-critical processes including red teaming to uncover failure modes and model vulnerabilities.
- Architect and deliver enterprise AI data programs spanning LLM training data, human-in-the-loop evaluation, safety testing, and multilingual model enablement, ensuring measurable impact on model performance, robustness, and global deployment readiness.
- Drive consultative, technical sales cycles by diagnosing AI maturity gaps, shaping solution roadmaps, and aligning cross-functional engineering, data science, and delivery teams to accelerate customer outcomes.
- Position Centific’s Frontier AI Data Foundry as a core accelerator for enterprise AI initiatives, resolving data scarcity, compressing training cycles, and enabling safer, more reliable model behavior across 200+ languages.
- Key Achievements:
- Expanded strategic enterprise accounts by 30% YoY, securing multimillion-dollar growth through technical consultative selling and executive alignment.
- Delivered measurable customer impact: 35% productivity uplift, 30% faster time-to-market, and 20% cost efficiencies through AI-powered workflows and optimized data pipelines.
- Opened new healthcare revenue streams by expanding accounts into Clinical AI, including medical imaging, voice-enabled clinical documentation, conversational diagnostics, and AI-supported decision tools.
- Enabled adoption of red-teaming and post-training evaluation frameworks that strengthened model safety, reliability, and regulatory readiness across LLM deployments.
- Generated new CX revenue by helping clients develop GenAI-powered shopping assistants and conversational AI for service automation, intelligent routing, voice-enabled support, and real-time issue resolution.
Business Development Director – Healthcare & Life Sciences
Acolad Group
New York, NY
01.2020 - 05.2022
- Collaborated with executive leadership to define and execute U.S. commercial strategy within the life sciences sector, consistently exceeding sales targets and contributing to double-digit vertical growth.
- Conducted in-depth market research to identify white-space opportunities and designed customer-specific go-to-market plans that secured multimillion-dollar localization contracts with leading biotech and MedTech organizations expanding into EU, APAC, and LATAM markets.
- Led full-cycle sales execution, building high-trust C-suite relationships and closing multi-year contracts with global healthcare and life sciences organizations.
- Shaped strategic positioning of the firm’s life sciences portfolio by articulating localization as a critical enabler of regulatory compliance, innovation, and patient-centric engagement.
- Guided internal delivery teams to uphold excellence in contract performance, service delivery, and regulatory alignment while streamlining solution customization to improve client onboarding and retention.
- Elevated firm visibility through strategic participation in industry conferences and localization thought-leadership forums.
Business Development Manager – Healthcare & Life Sciences
CPSL
Boston, MA
03.2016 - 12.2019
- Partnered with executive leadership to shape and execute U.S. commercial strategy for the life sciences market, consistently exceeding revenue targets and driving double-digit vertical growth.
- Identified white-space opportunities through deep market analysis and built tailored go-to-market plans that secured multimillion-dollar localization agreements with leading biotech and MedTech companies expanding into EU, APAC, and LATAM markets.
- Ran full-cycle sales execution, cultivating high-trust C-suite relationships and closing multi-year contracts with global healthcare and life sciences organizations.
- Positioned localization as a strategic enabler of regulatory compliance, innovation, and patient-centric engagement, elevating the firm’s competitive differentiation in life sciences.
- Guided delivery teams to ensure excellence in contract performance, regulatory alignment, and customer satisfaction while streamlining solution customization to improve onboarding and retention.
- Elevated brand visibility through strategic participation in industry conferences, regulatory forums, and thought-leadership events.
Education
Bachelor of Commerce - Marketing Management
University of Pretoria
01.2008
Certification
- Strategic Business Management
- Artificial Intelligence Expert Certified (CAIEC)
- AI Business Analyst
- Prompt Engineering Foundation Professional
- AI Risk Manager Professional
Competencies
Consultative Solution Selling, Cross-Functional Team Leadership, Executive Client Engagement & Relationship Management, Global Business Development & Expansion, Multilingual Go-to-Market Strategy, Revenue Growth & Retention Leadership, Strategic Insight & Market Intelligence
Skills
- Sales Tools: HubSpot CRM, LinkedIn Sales Navigator, Marketo, Pipedrive, Salesforce, Zoho CRM
- Productivity Suites: G Suite, Microsoft Office Suite, Slack, Trello, Zoom
- Reporting & Analysis: Google Analytics, Tableau
Timeline
Client Partner – AI Data Enablement & Digital Globalization Solutions
Centific
05.2022 - Current
Business Development Director – Healthcare & Life Sciences
Acolad Group
01.2020 - 05.2022
Business Development Manager – Healthcare & Life Sciences
CPSL
03.2016 - 12.2019
Bachelor of Commerce - Marketing Management
University of Pretoria