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Sandra Middleton

@sandramiddleton

Operations and supply chain leader at De Beers Group who launched a Gaborone facility and deployed over US$6 million in technology.

Botswana

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What I'm looking for

I’m open to operations, supply chain, stock control, logistics and SAP roles across copper, gold, cobalt, diamonds and other mining commodities, in the SADC region, Africa, the UK and globally.

At De Beers Group, I launched a greenfield diamond scanning and valuation facility in Gaborone, taking it from zero to commercial operation. I deployed more than US$6 million in imaging technology with partners including the Australian National University, Thermo Fisher Scientific and De Beers UK.

I managed high-value diamond stock in SAP and Microsoft Dynamics AX, keeping records audit-ready under external audit. In logistics, I handled international import and export compliance under the Kimberley Process.

Across my roles at De Beers Group, I held regulatory accountability for SHEQ and maintained a zero-incident record. I’m open to operations, supply chain, stock control, logistics and SAP roles across mining commodities, in the SADC region, Africa, the UK and globally.

Experience

Work history, roles, and key accomplishments

Operations Manager, Science and Technology

De Beers Group

Sep 2022 - Mar 2026 (3 years 6 months)

Led the launch and operation of De Beers' diamond scanning and valuation facility in Gaborone, deploying over US$6 million of new imaging technology and scaling activity to 160% over three years. Managed a multidisciplinary team of 8 and an operating budget of US$1 million.

Greenfield Launch Technology Deployment X Ray Computed Tomography Optical Tomography Project Management Team Leadership Budget Management Vendor Management SHEQ Compliance Radiation Licensing Kimberley Process Stakeholder Management

Manager, Diamond Stock Control

De Beers Group

May 2019 - Aug 2022 (3 years 3 months)

Directed stock control of $6.0 billion of stock in SAP and Microsoft Dynamics AX, ensuring audit-ready records and reconciliation within ±0.05ct tolerance. Led a team of 10 on performance and development.

Stock Control Inventory Management SAP Microsoft Dynamics AX Audit Support Team Leadership Reconciliations Compliance

Logistics Specialist, Diamonds

De Beers Group

Apr 2018 - Apr 2019 (1 year)

Managed international import and export logistics for 85 clients worth $6.0 billion annually to 6 countries, with Kimberley Process compliance. Controlled inventory and supply flows and analyzed supply chain trends in Excel and SAP.

Logistics Import Export Compliance Kimberley Process Inventory Management Supply Chain Analysis SAP Excel

Account Manager

De Beers Group

Jan 2017 - Mar 2018 (1 year 2 months)

Managed 10 client accounts across diverse markets, with account plans, forecasting, and CRM-supported retention. Fed market intelligence to senior management.

Account Management Forecasting CRM Market Intelligence Client Relations

Senior Stock Controller, Large Stones

De Beers Group

Jun 2013 - Dec 2016 (3 years 6 months)

Prepared and presented high-value diamond sales with quality assurance checks, and acted as liaison between internal teams and external stakeholders on stock processes and customer allocations.

Stock Control Quality Assurance Stakeholder Management Sales Support

Process Operator

De Beers Group

Jun 2012 - May 2013 (11 months)

Progressed diamond goods through receipt, mixing, allocation, and export preparation, with inventory control and quality checks to De Beers security and SHE protocols.

Inventory Control Quality Checks Compliance (SHE)Diamond Processing