Supply Chain Planning Manager - L2L Sites (Contractual)

Job Summary You will lead supply chain planning for sites, turning long-range plans into clear, actionable supply requirements. You will work closely with manufacturing, commercial and logistics teams to prevent stock gaps and reduce excess inventory. We value clear thinkers who use data, build strong partnerships, and drive practical improvements. This role offers professional growth, visible impact on supply reliability, and the chance to contribute to GSK’s mission of uniting science, technology, and talent to get ahead of disease together. Key Responsibilities Create and maintain supply and distribution plans that translate demand into manufacturing and delivery schedules. Manage supply risk and lead issue resolution to reduce stock-outs and minimize business disruption. Monitor and report on key performance indicators for inventory, service levels, and plan adherence. Partner with manufacturing, procurement, commercial and logistics to align forecasts, lead times, and replenishment rules. Lead continuous improvement projects to simplify processes and improve planning accuracy. Support new product introductions, product transfers and special supply events with clear plans and stakeholder coordination. Education, Experience & Skills Bachelor’s degree in Supply chain, Logistics, Industrial Engineering, Business, or a related field. Certification such as APICS, Lean Six Sigma or equivalent process improvement training is a plus. Minimum 5 years’ experience in supply chain planning, distribution planning, site scheduling, or related roles. Exposure to Distribution Requirements Planning (DRP), Rough Cut Capacity Planning (RCCP) or similar planning tools. Familiarity with Power BI, Advanced Excel, or other data visualization tools. Experience managing inventory, safety stock, and replenishment parameters. Ability to work with multiple stakeholders and make decisions in a matrix environment. Experience in the pharmaceutical, FMCG or regulated industries. Clear written and verbal English communication skills. Proven track record leading change and delivering measurable performance improvements. Skills Customer-Focused, Data Integrity, Data Visualization, Digital Fluency, Financial Acumen, GxP Regulations, Inventory Management, Lean Management, Master Data Management (MDM), Materials Requirements Planning (MRP), New Product Introduction (NPI), Problem Solving, Product Knowledge, Risk Awareness, Sales and Operations Planning (S&OP), Strategic Alignment, Supply Chain Operations, Supply Planning Why GSK? Uniting science, technology and talent to get ahead of disease together. GSK is a global biopharma company with a purpose to unite science, technology and talent to get ahead of disease together. We aim to positively impact the health of 2.5 billion people by the end of the decade, as a successful, growing company where people can thrive. We get ahead of disease by preventing and treating it with innovation in specialty medicines and vaccines. We focus on four therapeutic areas: respiratory, immunology and inflammation; oncology; HIV; and infectious diseases – to impact health at scale. People and patients around the world count on the medicines and vaccines we make, so we’re committed to creating an environment where our people can thrive and focus on what matters most. Our culture of being ambitious for patients, accountable for impact and doing the right thing is the foundation for how, together, we deliver for patients, shareholders and our people. Contact information: You may apply for this position online by selecting the Apply now button. Important notice to Employment businesses/ Agencies GSK does not accept referrals from employment businesses and/or employment agencies in respect of the vacancies posted on this site. All employment businesses/agencies are required to contact GSK's commercial and general procurement/human resources department to obtain prior written authorization before referring any candidates to GSK. The obtaining of prior written authorization is a condition precedent to any agreement (verbal or written) between the employment business/ agency and GSK. In the absence of such written authorization being obtained any actions undertaken by the employment business/agency shall be deemed to have been performed without the consent or contractual agreement of GSK. GSK shall therefore not be liable for any fees arising from such actions or any fees arising from any referrals by employment businesses/agencies in respect of the vacancies posted on this site.