• Own a portfolio of Tier 1 Enterprise customers with full accountability for long-term revenue growth, retention, and expansion. • Drive significant expansion revenue predominantly through cross-selling, upselling, and securing multi-year platform agreements to consistently achieve and exceed quarterly and annual expansion targets. • Develop and execute comprehensive multi-year account plans for your portfolio, identifying white space, mapping stakeholder influence, and quantifying expansion potential across different business units, geographies, and product lines. • Conduct deep discovery to understand customer business objectives, technical architecture, competitive landscape, and organizational dynamics to position BrowserStack as a strategic enabler of transformation. • Establish and maintain deep, trusted advisor relationships with C-level and VP-level executives (CTO, VP Engineering, VP DevOps, Head of QA). • Ensure predictable, on-time renewals by reinforcing value, outcomes, and ROI well ahead of contract milestones. • Act as the central point of ownership and orchestration across internal teams (Solutions Engineering, Client Success, Product, Marketing, Legal, Finance) to deliver seamless customer experiences and execute complex, multi-phase deals.