Costello Medical is hiring : Senior Medical Writer in Boston

Role Summary Costello Medical are growing quickly through demand from both new and existing clients and are therefore looking for candidates with prior experience in medical affairs and / or publications who enjoy content delivery, as well as project and client management, to join us as Senior Medical Writers in our Medical Communications team. In this role, you will be at the forefront of our expansion in the US market. This is a unique opportunity to influence and drive change in our fast-growing company, in a role you can shape to be your own, with excellent career development opportunities for high performing individuals.

Senior Medical Writers take a leading role across projects, providing strategic advice to clients, supervising the project team, and producing high-quality scientific content themselves. They ensure projects are delivered to an exceptionally high standard and in line with agreed timelines. This role involves regular client communication, project planning, reviewing colleagues’ work, providing constructive feedback, scientific writing, and contributing to business development by identifying new clients, writing proposals, and building and maintaining excellent client relationships. You will be based in our office in Boston, MA.

Compensation Base pay range : $90,000.00 / yr - $100,000.00 / yr. Salary is determined by qualifications and experience, with established salary bands to ensure fair and consistent assessment.

Benefits Discretionary profit share bonuses paid twice per year

Hybrid and flexible working options

Generous vacation allowance

Private medical and dental insurance

401K plan with up to 5% employer contribution

Life insurance

Full funding and study leave for external training

Other benefits as described in the US benefits package

Role Type & Start Date Role Type : Full-time, permanent

Start Date : We are recruiting for start dates throughout 2025, with options for immediate or deferred starts. Availability should be stated on the application form.

Location Boston, MA office

About The Role Costello Medical is seeking candidates with prior experience in medical affairs and / or publications who enjoy content delivery, project management, and client management. In this role you will contribute to our US expansion and develop your career with opportunities for progression. Senior Medical Writers will lead projects, provide strategic guidance to clients, supervise teams, and deliver high-quality scientific content while supporting business development and client relations.

Why Join Costello Medical Strong culture focused on an energetic, supportive environment; B Corp certification (2022)

Opportunity to join and shape our growing US venture

Exposure to a range of service offerings and disease areas

Opportunities to develop scientific writing and client relationship skills

Impact on health outcomes through client work

Requirements & About You Essential requirements A degree-level qualification in a scientific discipline (minimum GPA 3.3); fields include biology, chemistry, pharmacy, medicine

At least 2 years of professional experience in medical communications (agency setting preferred)

Strong scientific writing skills and ability to tailor writing style to audiences

Project management skills for timely delivery

Attention to detail and high written accuracy

Excellent written English and arithmetic

Experience supporting junior colleagues’ learning and development

Proficiency in Excel, PowerPoint, and Word for high-standard deliverables

Ability to provide client-facing recommendations on content and approach

Capacity to maintain high service quality under multiple demands

Experience in client communications and building robust client relationships

Ability to motivate colleagues and take a leadership role in project delivery

We welcome applications from those with at least 2 years’ experience and a willingness to work across diverse projects and accounts.

Application Process You are required to submit a resume and a cover letter via our online application form. Your cover letter should explain why you would be suited to the role with examples. Your resume should clearly state dates of qualifications and grades.

Our recruitment process includes a telephone screen, a written assessment and proofreading exercise, and a final interview with a short presentation. The process lasts around one month, with adjustments as needed. We are an equal opportunity employer and can provide reasonable adjustments on request. Please note that some materials may be confidential and should not be uploaded to AI.

Visa Sponsorship We welcome applications from international candidates, but we cannot provide visa sponsorship for working visas. You must have the right to work in the US independently. We do consider those on temporary visas, such as OPT.

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