Senior Medical Writer

Costello Medical•Boston, MA
•$90,000 - $100,000•Hybrid

About The Position

Costello Medical is seeking Senior Medical Writers to join its Medical Communications team as the company expands in the US. The role is suited to candidates with professional experience in medical affairs and/or publications who enjoy scientific content delivery as well as project and client management. Senior Medical Writers lead projects, provide strategic advice to clients, supervise project teams, and produce high-quality scientific content. They help ensure work meets agreed timelines and exceptional quality standards, while contributing to the growth of client relationships and the business. The role includes regular client communication, project planning, reviewing colleagues’ work and providing constructive feedback, scientific writing, and business development activities such as identifying new clients and writing proposals. Writers may work across multiple accounts and disease areas and may also have opportunities to contribute to projects in the company’s Value and Access, Rare Diseases, and Evidence Development service areas. The position is available in the Boston, Massachusetts and New York, New York offices. The description also states that the successful candidate will be based in the Boston office and will work closely with Boston-based Team Heads and senior colleagues in the US and globally. The hybrid policy permits working from home for up to half of working time, measured across a two-week rolling period, and flexible working arrangements are available. The company is recruiting for early 2027 start dates, including immediate or deferred starts. This is a full-time, permanent role.

Requirements

  • Degree-level or higher qualification in a scientific discipline, with a minimum GPA of 3.3.
  • At least 2 years of professional experience in a medical communications role, such as medical affairs and/or publications, outside academia.
  • Strong scientific writing skills and the ability to tailor writing to different audiences.
  • Project management skills sufficient to support timely project delivery.
  • Exceptional attention to detail and written accuracy.
  • Excellent written English and arithmetic proficiency.
  • Experience supporting junior colleagues’ learning and development.
  • Strong data presentation skills and effective, efficient use of Excel, PowerPoint, and Word.
  • Sufficient technical and strategic knowledge to recommend project content and approaches to clients.
  • Ability to maintain exceptional customer service and quality under multiple competing demands.
  • Experience communicating directly with clients, adapting to different communication styles, and building sustainable client relationships.
  • Ability to motivate colleagues and lead the delivery of project components.
  • Flexibility and willingness to contribute to a wide variety of projects and accounts across multiple disease areas.

Nice To Haves

  • Agency-setting experience in medical communications is ideal.
  • Scientific specialisms such as biology, chemistry, pharmacy, or medicine are welcomed, among other disciplines.

Responsibilities

  • Lead medical communications projects and help ensure delivery to agreed timelines and exceptionally high standards.
  • Provide strategic advice to clients on project content and approach.
  • Supervise project teams and take a leadership role in delivering project components.
  • Produce high-quality scientific content and undertake scientific writing.
  • Plan projects and communicate regularly with clients.
  • Review colleagues’ work and provide constructive feedback.
  • Support junior colleagues’ learning and development.
  • Contribute to business development by identifying prospective clients and writing proposals.
  • Build and maintain excellent, robust, and sustainable client relationships.
  • Work across different accounts and disease areas, becoming familiar with new information quickly.
  • Maintain customer service and deliverable quality while managing competing demands.

Benefits

  • Discretionary profit-share bonuses paid twice per year.
  • 23 days of vacation leave, increasing by one day each year to a maximum of 27 days.
  • Six public holidays and one floating vacation day.
  • Flexible working hours and the option to work from home up to half of working time.
  • Private medical insurance with a company contribution.
  • Dental and vision coverage.
  • Life insurance.
  • 401(k) plan with up to a 5% employer match.
  • Funding for external education and study leave.
  • Paid and unpaid sabbaticals based on length of service.
  • Regular company-funded social activities.
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