Demand Forecasting Manager

Site Name: Turkey - Istanbul, Pakistan - Sindh - Karachi
Posted Date: Jan 9 2026

We manufacture and supply reliable, high-quality medicines and vaccines to meet patients’ needs and drive our performance.Our network of 37 medicines and vaccines manufacturing sites delivered 1.7 billion packs of medicines and 409 million vaccine doses in 2024 to help make a positive impact on the health of millions of people. Our supply chain is not just core to our operations; it’s vital to bringing our innovations to patients as quickly, efficiently and effectively as possible. Technology is transforming how we manufacture medicines and vaccines, enabling us to increase the speed, quality and scale of product supply.We need the very best minds and capability to help us on our journey to make more complex products, harnessing the power of smart manufacturing technologies including robotics, digital solutions and artificial intelligence to deliver for patients.

Demand Forecasting Manager

You will lead demand forecasting for Saudi, working closely with commercial, supply and analytics teams. You will own processes that create reliable forecasts and improve how we use data. We value clear thinkers who are collaborative, curious and committed to making a measurable impact. This role offers growth, visible responsibility and the chance to help GSK unite science, technology and talent to get ahead of disease together.

Responsibilities:

This role will provide YOU the opportunity to lead key activities to progress YOUR career. These responsibilities include some of the following:

• Chair/facilitate monthly Pre-Demand Review Meeting (PDRM) and Demand Review Meeting (DRM) to achieve consensus forecast.
• Generate baseline forecast by using Statistical model to ensure robust & realistic baseline forecast generated.
• Develop and embed a sustainable 24-month Forecasting process driven by Baseline inputs and incorporating right level of stakeholder collaboration
• Analyze bottom-up forecast that provided by sales operation and incorporate it into template accordingly.
• Prepare Pre-DRM/DRM and brand financial templates for short-term and medium/long term forecast review.
• Develop the aggregate demand plan, document, updates and challenge the factors and assumptions supporting the demand monthly for DRM.
• Reporting all the KPIs and provide the root causes& mitigation plans on a monthly basis (e.g. Forecast Bias, Forecast accuracy)
• Monitor demand plans for promotions and new products, working closely with Commercial Teams to ensure the plan effectiveness is evaluated & linked into demand plans
• Ensure forecast accuracy is reviewed during Pre-DRM & DRM together with root cause analysis to ensure action planning & continuous improvement of the overall process.
• Monitor demand plan performance, providing detailed input to sales and marketing for use in DRM.
• Identify sales risk by providing the Run Rate analysis & propose sales opportunity to maximize gross margin through better decisions based on transparency of operational realities.
• Manage the Demand Forecasting and Financial forecasting/budgeting processes
• Build effective gross volume and value forecasts fully aligned with market & category trends.
• Working closely with Supply Hub to ensure continuity in supply and minimize OOS or excess inventory.
• Building an effective inventory plan to balance bias and working capital objectives thereby ensuring adequate stock and agreed customer service levels are met for forecasted sales
• Ensure that all major processes and procedures are documented by SOP´s and that SOP´s are compliant with GSK corporate policies and procedures. Any other duty within the job scope as directed by the superior.

Why You?

Basic Qualification

We are seeking professionals with the following required skills and qualifications to help us achieve our goals

• Bachelor’s degree in Supply Chain, Business, or a related field.
• Minimum 5 years’ experience in demand forecasting, demand planning or related supply chain role.
• Strong experience working with large datasets and managing data quality.
• Practical skills in forecasting methods and performance metrics (for example bias and accuracy).
• Good Excel skills and experience with forecasting or planning tools. Knowledge of SAP or planning systems is desirable.
• Strong communication skills in English for business communication.

Preferred Qualifications

If you have the following characteristics, it would be a plus

• Experience in consumer healthcare, pharmaceutical, FMCG or retail demand planning.
• Hands-on experience with Power BI, advanced Excel, or statistical tools for forecasting.
• Experience with Integrated Business Planning or S&OP processes.
• Ability to influence stakeholders and lead cross-functional meetings & collaboration calls
• A proactive mindset with strong attention to detail and problem-solving skills.
• Organizational skills with excellent attention to detail
• Leadership and influencing skills
• Relationship builder
• Strong awareness of internal customer service and financials
• Ability to apply strategic thinking to deliver large scale network solutions
• Experience with SAP and Excel
• Business and financial acumen
• Excellent English communication skills, both written and verbal

Working arrangement

This role is posted in the primary location in Istabul, Turkiye and secondary location in Karachi, Pakistan. This requires presence in either Turkiye Istanbul Head office or Karachi West Wharf Head Office

Ready to make an impact?

If you are excited to improve forecasting, work with great people, and help GSK deliver on its mission, we want to hear from you. Apply now and take the next step in your career.

Why GSK?

You will join a team focused on patient outcomes and scientific excellence. You will have development opportunities and access to global expertise. You will work in a supportive environment that values inclusion, respect and open feedback. If you are ready to use your clinical knowledge and relationship skills to make a difference, please apply today. We welcome applicants from all backgrounds.

What we offer

You will join an organisation that aims to make a real difference to patients. We invest in learning and development to help you grow. You will work with people who value inclusion and diverse perspectives. If you want to build a meaningful career in oncology and help shape better outcomes for patients, we encourage you to apply.

GSK is an Equal Opportunity Employer. This ensures that all qualified applicants will receive equal consideration for employment without regard to race, color, religion, sex (including pregnancy, gender identity, and sexual orientation), parental status, national origin, age, disability, genetic information (including family medical history), military service or any basis prohibited under federal, state or local law.

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.

As an Inclusive employer, we encourage you to reach out if you need any adjustments during the recruitment process. Please contact our Recruitment Team at tr.recruitment-adjustments@gsk.com to discuss your needs.

Please note should your enquiry not relate to adjustments; we will not be able to support you through these channels

GSK is an Equal Opportunity Employer. This ensures that all qualified applicants will receive equal consideration for employment without regard to race, colour, religion, sex (including pregnancy, gender identity, and sexual orientation), parental status, national origin, age, disability, genetic information (including family medical history), military service or any basis prohibited under federal, state or local law.

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.

Please note that if you are a US Licensed Healthcare Professional or Healthcare Professional as defined by the laws of the state issuing your license, GSK may be required to capture and report expenses GSK incurs, on your behalf, in the event you are afforded an interview for employment. This capture of applicable transfers of value is necessary to ensure GSK’s compliance to all federal and state US Transparency requirements. For more information, please visit the Centers for Medicare and Medicaid Services (CMS) website at https://openpaymentsdata.cms.gov/