Ying (Daphne) Du
Summary
Results-driven professional with over 7 years of experience in power generation, portfolio management, and risk analysis within the energy sector. Demonstrated expertise in managing retail pricing strategies, optimizing portfolio performance, and developing hedging strategies to mitigate financial risk. Highly analytical individual with a proven track record of delivering impactful results.
Overview
18
18
years of professional experience
Work History
Inventory Manager
SLB
04.2022 - 03.2025
- Optimized inventory levels and minimized carrying costs through effective management strategies.
- Conducted data analysis to identify trends and areas for improvement, developing strategies to reduce excess inventory and enhance turnover.
- Collaborated with finance to forecast inventory needs based on historical data and sales projections, supporting supply chain and production planning.
- Implemented best practices and PowerBI dashboards to reduce inventory inaccuracies and improve management efficiency.
- Generated reports and maintained accurate documentation on inventory levels, stock movements, and discrepancies, providing timely insights for decision-making.
Pricing and Portfolio Manager
YTL PowerSeraya PTE LTD (Subsidiary)
03.2019 - 03.2022
- Managed pricing and portfolio for 150K customers across commercial and residential sectors, generating $700M in annual revenue.
- Developed and implemented pricing and hedging strategies using load forecasting and market analysis to optimize financial performance.
- Improved retail gross margins by strategically selecting hedging products, including oil and electricity futures.
- Collaborated with the Derivatives and Risk team to manage hedging and load swing exposures .
- Led the procurement of Carbon Credits and Renewable Energy Credits to enhance green product offerings.
- Analyzed the impact of electricity market rule changes , working closely with the Singapore Electricity Market Authority to evaluate retail market policy.
Planning Manager
SLB
11.2016 - 03.2019
- Led a team of production planners, ensuring on-time delivery of quality products for field operations.
- Reduced manufacturing cycle time and inventory levels by optimizing production scheduling processes.
Procurement Leader
SLB
03.2015 - 10.2016
- Led procurement activities at Completions Houston Product Center, ensuring timely and cost-efficient purchase orders.
- Collaborated with Planning and Sourcing teams to streamline order placement and maintain schedule adherence.
- Achieved over 95% on-time delivery for all purchase orders.
Supplier Leader
SLB
12.2011 - 02.2015
- Managed critical suppliers (Raw Material Distributors, Swell Packer, Custom Molding) for global EMS centers, overseeing a combined spend of $40 million.
- Focused on performance management, improving capacity, on-time delivery, cost reduction, and quality.
- Led negotiations and implemented contracting strategies aligned with global category objectives.
Senior Specialist - Electricity Market
YTL POWERSERAYA PTE LTD
06.2010 - 08.2011
- Booked retail sales and calculated hedging requirements for the Derivative team, analyzing the accuracy of vesting/retail hedges.
- Assisted the Portfolio team in assessing risks related to various retail products and customer profiles.
- Developed analytical models to support electricity trading decisions, focusing on profit and risk analysis and gross margin performance.
- Conducted reviews of market rule changes and analyzed their impact on the company.
Trader - Wholesale Electricity Market
YTL PowerSeraya
06.2007 - 06.2010
- Planned generator schedules and managed the electricity generation portfolio in coordination with the utilities group.
- Analyzed market conditions and conducted trading in wholesale day-ahead/real-time electricity markets .
- Managed CfD (Contract for Difference) quotations for the retail team, supporting electricity sales to customers.
- Developed monitoring reports and analytical tools to track and evaluate electricity trading performance.
Education
Bachelor of Science - Industrial And Systems Engineering
National University of Singapore
Singapore06-2007
Skills
- Data handling and insights
- Effective team collaboration
- Analytical problem-solving
- Attention to detail
Languages
English
Full Professional
Chinese (Mandarin)
Native or Bilingual
Software Proficiency
- Excel (Advanced, including VBA )
- PowerBI (Dashboard creation and analysis)
- SQL (Data querying and analysis)
Timeline
Inventory Manager
SLB
04.2022 - 03.2025
Pricing and Portfolio Manager
YTL PowerSeraya PTE LTD (Subsidiary)
03.2019 - 03.2022
Planning Manager
SLB
11.2016 - 03.2019
Procurement Leader
SLB
03.2015 - 10.2016
Supplier Leader
SLB
12.2011 - 02.2015
Senior Specialist - Electricity Market
YTL POWERSERAYA PTE LTD
06.2010 - 08.2011
Trader - Wholesale Electricity Market
YTL PowerSeraya
06.2007 - 06.2010
Bachelor of Science - Industrial And Systems Engineering
National University of Singapore
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