Outcomes, not job titles.

Cape Town Day Zero: bringing the world's first off-grid water data center online

Microsoft · Director of Water Strategy

During Cape Town's historic Day Zero drought, Dr. Johnson led a 30-plus person engineering team to bring online the world's first data center running completely off-grid for water, eliminating municipal water dependency at the exact moment the city's supply was most at risk.

Advising a hyperscaler on data center waste heat reuse

Priska Consulting · Confidential Hyperscaler Engagement

Dr. Johnson advised a hyperscale data center developer on a waste heat reuse strategy, evaluating pathways to capture and repurpose thermal output from cooling systems rather than reject it to atmosphere. The engagement addressed technical feasibility, utility and regulatory coordination, and the emerging expectation that developers treat waste heat as a recoverable resource rather than a byproduct.

Client identity and engagement specifics are protected under a non-disclosure agreement. Additional detail is available to qualified prospective clients upon request.

Co-inventing a patented core, shell, and airflow design

Microsoft · Patent No. 10,757,840 · Issued 2020

Working from a separate early-morning engineering session focused specifically on data center efficiency, Dr. Johnson co-invented a patented core, shell, and airflow design that improves energy performance through vertical airflow management and advanced thermal control, distinct from and additional to her water strategy work.

Co-creating Microsoft's Net Positive Water Strategy, announced at the United Nations

Microsoft · Net Positive Water Strategy

The strategy funded restoration projects at a scale sufficient to replenish nearly half of the water Microsoft's operations consumed globally in 2021, giving investors and regulators a verifiable water stewardship claim rather than a marketing one.

Evaluated a $33M+ efficiency portfolio across refineries, data centers, and farmland

Pacific Gas & Electric · Expert Strategy Analyst, Energy Efficiency

Dr. Johnson led multi-disciplinary engineering reviews spanning refineries, data centers, healthcare facilities, and agricultural operations serving 700,000 electricity and 200,000 gas customers, including accounts the scale of Chevron and AWS data centers, and created California's first statewide water-energy calculator.

Advising water technology decisions behind Danaher/Veralto's global portfolio

Danaher Corporation · Water Quality Platform Innovation & Technology Board

Dr. Johnson's strategic guidance supported the board's technology decisions across Danaher's water quality portfolio, and her market research on the $27.55B water technology sector helped position the company to capture emerging revenue streams as the division scaled. Danaher is a global science and technology company operating across water quality, life sciences, and diagnostics; Veralto, its water quality platform, provides instrumentation and treatment technology used by municipal and industrial customers worldwide.