Obsidian
Principal Medical Writer - Medical Communications
How your CV stacks up
Upload your CV to see how well it fits this job role
?%
About Us
At Obsidian, we’re passionate about transforming scientific communications to improve healthcare outcomes for everyone. As a specialist healthcare agency, dedicated to medical & scientific communications, we partner with global healthcare organisations to share knowledge that truly makes a difference.
Our team of >70 academic scientists, strategists, and communications experts deliver cutting-edge solutions across:
- Medical Affairs
- Strategic Consultancy
- Scientific Meetings and Events
- Medical Education
- Publications Planning and Delivery
- Creative and Digital Services
- Commercial Strategy
The Opportunity
This is an exciting opportunity for an experienced Principal Medical Writer to step into a pivotal role, shaping high-impact scientific and commercial projects while mentoring the next generation of talent. As a Principal Medical Writer (PMW), you will:
- Lead editorial direction for a diverse portfolio of scientific and commercial projects, including complex multi-component deliverables across a range of therapy areas such as: oncology, biosimilars, rare diseases, cardiology, infectious diseases/vaccines, neurology and haematology.
- Own project delivery across your accounts, ensuring the highest editorial, scientific, and strategic standards.
- Mentor and develop junior writers, offering coaching, training, and guidance to maintain exceptional quality and support career progression.
- Drive resource planning and workflow discussions for assigned accounts, ensuring efficiency and timely delivery.
- Support team time management, helping junior colleagues prioritize effectively and work collaboratively.
Reasons to use Rodeo
Start with a chat, not a search bar
Grad scheme, placement, apprenticeship? Not sure what you want yet — that's fine. Your agent talks it through with you and turns "I have no idea" into a shortlist.
It searches the market for you
Every day your agent scans the market matching roles against what actually matters to you, not just keywords on a CV.
Only hits
No noise. No "maybe this fits." Just roles with a clear explanation of why they're right — and where to focus when applying.
Our expertise will directly influence the success of client projects and strengthen our reputation for scientific excellence—making a real impact on healthcare communications worldwide.
What You’ll Do
- Lead the charge on projects, driving timelines, resources, and flawless delivery.
- Shape strategy as the go-to therapy area expert, ensuring scientific precision and impact.
- Craft compelling content that challenges briefs and elevates client expectations.
- Inspire and mentor junior writers, building a culture of excellence.
- Own client relationships, instilling confidence and creating long-term partnerships.
- Champion compliance and editorial quality at every stage.
- Master budgets and resources, keeping projects on track and profitable.
- Spot growth opportunities and help win new business with standout proposals.
- Drive innovation, sharing ideas that improve processes and strengthen the team.
What We’re Looking For
Get help with your application
Your very own career expert that helps elevate your application to the next level.
- Ideally a degree in biological sciences (BSc/MSc/PhD or equivalent).
- Proven experience within medical communications agencies, ideally as a Principal Medical Writer or equivalent
- Strong leadership and mentoring skills with a track record of managing editorial team members.
- Ability to deliver high-quality scientific content and strategic counsel
- Strong commercial acumen
What We Offer
- Hybrid working: Only 2 anchor days a week in the office from our vibrant London office (just off Fetter Lane, EC4).
- 25 days’ holiday + bank holidays, plus gifted days at Christmas and your birthday off.
- AXA Private Healthcare (with family options), Aviva pension scheme, income protection, life assurance.
- Enhanced parental leave, cycle-to-work scheme, season ticket loan.
- Bonus schemes and employee referral rewards.
- Learning and Development: Comprehensive training programmes, annual performance reviews, and opportunities to join working groups.
- Wellbeing Support: EAP, mental health first aiders, AXA wellbeing calendar, and a dedicated wellbeing room.
- Social Connection: Regular social events, and a friendly, collaborative culture.
Ready to lead, inspire, and make an impact? Join us at Obsidian and help shape the future of scientific communications.
“It took my CV and asked me questions relevant to understanding what kind of jobs to suggest for me. Suggestions were almost perfect. Jobs were exactly what I’ve been looking for.”
Jessica, London
Skills
Location