At GSK, we have bold ambitions for patients, aiming to positively impact the health of 2.5 billion people by the end of the decade. Our R&D; focuses on discovering and delivering vaccines and medicines, combining our understanding of the immune system with cutting-edge technology to transform people’s lives. GSK fosters a culture ambitious for patients, accountable for impact, and committed to doing the right thing, making sure that we focus our efforts on accelerating significant assets that meet patients’ needs and have the highest probability of success. We’re uniting science, technology, and talent to get ahead of disease together.
Find out more: Our approach to R&D;
Job title: Scientist
Location : Siena, Italy
Employment type: Fixed-term (2 years), tempo pieno
Closing date for applications: 12 August 2026
Position Summary
You will design and run immunological studies that support discovery and mid-stage vaccine development for global health. You will work closely with colleagues across discovery, development and external partners. We value curiosity,



clear scientific thinking and collaboration. This role offers strong learning and growth opportunities, a chance to make meaningful impact, and aligns with GSK’s mission 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:
- Design, plan and execute laboratory experiments to support vaccine development project from early discovery to proof of concept in humans.
- Develop, optimise and validate immunological assays.
- Collect, analyse and present scientific data clearly to project teams and stakeholders.
- Work with cross-functional teams and external partners to meet project timelines and deliverables.
- Maintain high standards for data integrity, documentation and laboratory safety.
- Share improvements and new methods to support team

📌 Scientist (Fixed-term contract) (Siena)
🏢 Gsk
📍 Siena