[Skip to main content](#main-content) [OpenNash Jobs](https://jobs.opennash.com/) [Hiring report](/reports/hiring/) · [All GSK jobs](https://jobs.opennash.com/companies/gsk/) · [Search jobs](/search/) GSK # Field Based Medical Affairs Manager (Oncology) Petaling Jaya, Selangor, Malaysia Full-time Manager or lead Healthcare & Clinical Listed on GSK’s official careers site. Posted October 4, 2026. Check that it is still open and apply there. [Apply on GSK’s careers site →](https://jobs.gsk.com/gb/en/job/GHVGPAGB443103EXTERNALENGB/Field-Based-Medical-Affairs-Manager-Oncology) [OpenNash Jobs](https://jobs.opennash.com/) / [GSK](https://jobs.opennash.com/companies/gsk/) / Field Based Medical Affairs Manager (Oncology) ## Job description As a Field‑Based Medical Affairs Manager (Oncology), this role will provide YOU the opportunity to execute external scientific engagement and medical initiatives in alignment with the local oncology medical strategy. The role is primarily field‑based and focuses on peer‑to‑peer scientific exchange, generation of actionable medical insights, and delivery of medical projects that support patient care, evidence generation, and informed internal decision‑making, while ensuring the highest standards of regulatory, ethical, and scientific integrity. We value curiosity, scientific rigour, strong communication skills, and a collaborative mindset. This role offers the opportunity for meaningful impact, continuous development, and contribution to GSK’s purpose of uniting 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 Build, maintain, and deepen trusted scientific relationships with oncologists, cancer specialists, and other relevant healthcare professionals. Deliver accurate, balanced, and non‑promotional scientific exchange on disease areas, clinical data, and emerging evidence. Capture, synthesize, and communicate high‑quality medical insights from external engagements to inform strategy, planning, and evidence needs. Support the planning and execution of advisory boards, medical education programs, workshops, and congress activities. Contribute to local medical initiatives, and external collaborations where appropriate. Support internal scientific capability building through delivery of medical updates and training when appropriate. Ensure all interactions and materials follow legal, regulatory and ethical requirements and GSK standards. Collaboration and impact You will work closely with medical, clinical, regulatory and commercial colleagues. You will act as a bridge between external scientific communities and internal teams. You will help shape local medical strategies and contribute to projects that improve patient outcomes. You will be expected to work independently in the field while staying connected to the wider medical team. Why You? Qualification We are seeking professionals with the following required skills and qualifications to help us achieve our goals: Medical degree (MBBS/MD), pharmacy degree (BPharm/PharmD), or postgraduate degree (Master’s or PhD) in a relevant life sciences discipline Minimum 2 years relevant experience in medical affairs or related roles, preferably in oncology. Strong understanding of oncology disease areas and clinical data interpretation. Demonstrated ability to build credible, professional relationships with healthcare professionals. Familiarity with the Malaysian healthcare and oncology ecosystem. Ability and willingness to travel regularly within Malaysia and attend scientific meetings as needed. This role is field-based with regular office and virtual collaboration. ### Skills Digital Fluency, Enterprise Thinking, External Stakeholder Management, High Impact Communication, Launch Excellence 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. We are committed to creating an inclusive workplace and providing equal opportunities for all applicants. We embrace an agile working culture across our roles, so if flexibility is important to you please discuss opportunities with our hiring team. If you need any adjustments to the recruitment process to help you demonstrate your strengths and capabilities, contact APACRecruitment.Adjustments@gsk.com. Please note this email is for adjustment requests only; for other enquiries please use our standard contact channels. 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. ## At a glance - Posted by the employer: Oct 4, 2026 - First seen by OpenNash: Oct 13, 2026 - Last checked: Oct 13, 2026 - Listed for: 9 days - Location: Petaling Jaya, Selangor, Malaysia - Employment type: Full-time[Apply on GSK’s careers site →](https://jobs.gsk.com/gb/en/job/GHVGPAGB443103EXTERNALENGB/Field-Based-Medical-Affairs-Manager-Oncology) ## More jobs at GSK ### [Associate Medical Director, Safety Evaluation and Risk Management (SERM)](https://jobs.opennash.com/companies/gsk/jobs/152aabb2a3e91fd61a13/) Durham, North Carolina, United States of America ### [Biological & Biomedical Sciences (Multiple Roles) Industrial Placement, 2027](https://jobs.opennash.com/companies/gsk/jobs/2d9b8e1d83ccc51f68ec/) Stevenage, Hertfordshire, United Kingdom ### [Biopharmaceutical Manufacturing Associate II](https://jobs.opennash.com/companies/gsk/jobs/a0b8e9394114bdef06ed/) King of Prussia, Pennsylvania, United States of America ### [Biopharmaceutical Production Manager](https://jobs.opennash.com/companies/gsk/jobs/b2f52c8a2d29d396a6a6/) King of Prussia, Pennsylvania, United States of America ### [Clinical Biomarker & Diagnostic Lead](https://jobs.opennash.com/companies/gsk/jobs/33310e8034e5f9f16626/) Akasaka, Tokyo, Japan ## Similar jobs at other companies ### [[MA] Office-based Medical Affairs Scientist (MAS), Breast Cancer team, Oncology Medical Affairs](https://jobs.opennash.com/companies/pfizer/jobs/af46d6b629993f4e10ea/) Pfizer · Japan - Tokyo ### [[MA] RA/Gastroenterology, Medical Affairs Scientist, Medical Manager/Associate (Field Medical)](https://jobs.opennash.com/companies/pfizer/jobs/03b844f5c0e10c91579a/) Pfizer · Japan - Tokyo ### [Regional Field Sales Executive Edinburgh Field Based United Kingdom](https://jobs.opennash.com/companies/imperial-brands/jobs/ccc478f3e00a3b519997/) Imperial Brands ### [Regional Field Sales Executive 12 Month Ftc Field Based United Kingdom](https://jobs.opennash.com/companies/imperial-brands/jobs/f8a5f91000b3e005d2bc/) Imperial Brands ### [Business Development Representative – Field Sales (Remote / Territory-Based)](https://jobs.opennash.com/companies/jpmorganchase/jobs/8d7929597626e5e7509c/) JPMorganChase · Toronto, ON, Canada OpenNash lists jobs from employers’ own careers sites and does not handle applications. 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