Senior Medical Writer

Cactus Life Sciences partners with the global biopharma industry to deliver science-driven medical communications that bridge research and real-world healthcare impact. If you're passionate about medical science and have a flair for writing, the Senior Medical Writer role offers a challenging and rewarding opportunity to grow your career and make a meaningful difference.
Please note: This is a remote role based in Switzerland. Candidates open to relocating are welcome to apply, though please note that relocation support is not provided.

• Take ownership for developing (writing, reviewing, proofreading, and data-checking) high-quality, client-ready content across a range of core medical communications deliverables such as slide decks, congress and meetings materials, manuscripts, abstracts and posters.

• Apply your scientific and creative capabilities to develop effective content for the digital space, including publication extenders, infographics, interactive assets and website content.

• Support the creation of visual content through effective data visualization techniques and contribute to innovative out of the box solutions for medical writing projects.

• Review materials developed by other writers to ensure strategic alignment and scientific accuracy, and provide clear constructive feedback, support, and supervision as needed.

• Ensure all materials align with client requirements, style guides, templates, preferences, and Cactus Life Sciences internal SOPs.

• Develop a deep understanding of aligned products/accounts to enable meaningful interactions with clients and experts.

• Build and maintain strong relationships with clients and key stakeholders (such as authors, reviewers and key opinion leaders).

• Effectively and proactively communicate with team members, authors/faculty, clients and other vendors.

• Support with business development through proposal development for existing clients and/or participation in preparing for and presenting at pitches.

• Attend workshops/seminars/training to hone your skills and contribute to organizational objectives.

• Attend client and other external meetings and support senior team members as needed.

  #LI-Remote

• PhD in medical, life or health sciences, or pharmacy or Masters degree in life sciences.
• At least 3 years experience as a medical writer within the pharmaceutical industry, ideally within a medical communications agency.
• Strong scientific writing skills, with a clear and concise style of writing and a high level of attention to detail.
• Ability to adapt writing style to different materials and target audiences.
• Literature reviewing and evaluation capabilities.
• Basic knowledge of biostatistics.
• Ability to multi-task and work under tight timelines.

Before applying, please ensure you meet the role requirements listed above and have legal authorization to work in the country where this role is advertised. Our selection process begins with a Technical Interview with the hiring manager and peers, followed by a Technical Assessment to be completed within an agreed timeline. Candidates who progress further will have an informal catch-up with a few members of the broader team, and the final stage will be an HR interview. All interactions will be conducted virtually via MS Teams.

AI at Cactus Life Sciences
The life sciences industry is undergoing a fundamental shift in how scientific knowledge is created, communicated, and delivered. We are building our work around it.
AI is embedded meaningfully across everything we do, through proprietary platforms purpose-built for life sciences and generative tools that deliver measurable value to our clients. It is core to how we operate, and an expected way of working for everyone who joins us.
We believe in Human-Anchored AI™: whatever your discipline - science, communications, strategy, or operations, you will work in an environment where AI augments your expertise rather than replaces it.
You will build skills that are in genuine demand and still taking shape across the industry. If you are curious and focused on building capabilities for the world where human intelligence meets artificial intelligence, this is where you belong.

Equal Opportunity
Our hiring practices reflect our commitment to providing equal opportunities and creating an environment where everyone can thrive, develop, and succeed. We celebrate the uniqueness of our team members and prohibit discrimination of any kind, based on race, colour, religion, gender identity, sexual orientation, age, marital status, disability, or any other protected characteristic.

At Cactus Life Sciences (cactuslifesciences.com), we believe the future of medical communications lies at the intersection of science, technology, and human connection. Headquartered in Princeton, New Jersey, with teams in Switzerland, the United Kingdom, India, and Japan, we help biopharmaceutical organizations redefine scientific exchange-leveraging AI, automation, and innovation while keeping patients at the heart of everything we do.

Our expertise spans medical strategy, scientific content development, and medical education across therapeutic areas and the product lifecycle. By blending scientific rigor, agile operational models, and future-ready technologies, we partner with medical affairs teams to catalyze their transformation, adapt to a changing landscape, and drive meaningful outcomes for healthcare communities worldwide.