Marketing Assistant

Role Summary

• Responsibilities: You will support the planning and delivery of marketing campaigns, create and manage marketing content, and contribute to a variety of projects that help promote our company and services. This is a varied, hands-on role where you’ll also assist with events, collaborate with different teams, and develop your skills through real responsibility and ongoing training
• Salary: A starting salary of £26,250 per annum outside of London (£28,860 per annum in London). For candidates bringing significant previous experience, we may be able to offer a higher starting salary
• Benefits: Discretionary profit share bonuses paid twice per year, hybrid and flexible working options, generous holiday allowance, private medical insurance, critical illness cover, income protection, full funding for external training, and more
• Role Type: Full-time, permanent role
• Start Date: This role will ideally commence in August or September 2026, and you will be asked to state your availability on your application form
• Application Deadlines: Whilst there are no set application deadlines, we strongly recommend applying as early as possible. The role will close when a suitable candidate is found
• Location: This role is available in our Global Headquarters in Cambridge, as well as our London and Bristol offices

About the Role

Costello Medical, a global B Corp certified medical communications firm, continues to grow rapidly thanks to our commitment to delivering an outstanding service and high-quality work to our clients. As a result, we’re looking for a Marketing Assistant to join our friendly and collaborative External Engagement team. You’ll be part of a team that sits at the centre of the business, working closely with colleagues across different teams and locations.

In this role, you’ll help us craft and circulate company news, activities, and our capabilities with the wider world. No two weeks are the same; you might be preparing marketing materials with Designers or supporting events and connecting with various teams across the company.

This role is ideal if you enjoy variety, teamwork, and learning new things, and want to start building a career in marketing within a company that’s making a meaningful impact in healthcare.

Key responsibilities will include:

• Supporting the strategic planning and delivery of marketing campaigns and day-to-day activities for Costello Medical
• Creating digital content for LinkedIn, emailers, and other external channels, as well as scheduling and managing communications through HubSpot
• Helping to maintain our company website, making updates through WordPress to keep content fresh and engaging, reflective of company updates and priorities
• Assisting with business development initiatives and the production of marketing materials
• Working with in-house Designers to develop engaging content and materials
• Analysing marketing metrics to assess the impact of activities and make recommendations
• Supporting the organisation and delivery of client and company events, including occasional travel to other offices
• Providing general administrative support to the External Engagement team and, if required, the wider Operations department

We’ll invest in your development from day one, with structured training, mentoring and fully funded external opportunities to help you build your skills quickly. As you grow, you’ll have the chance to take on increasing responsibility and shape your role around your interests.

Career Profile

To learn more about the personal and professional development opportunities at Costello Medical, explore first-hand career profiles from our colleagues about their experiences with the company: https://www.costellomedical.com/careers/working-at-costello-medical/

About Costello Medical

Costello Medical is a rapidly growing global healthcare agency specialising in medical communications, market access, and health economic and outcomes research. We work with a wide range of clients, including the industry’s most successful pharmaceutical and medical technology companies, patient and public health bodies, and charitable organisations. We have been listed in the Top 100 Best Companies to Work For list since 2017, the Boston Globe’s Top Places to Work list in 2025, and were proud to receive B Corporation accreditation in 2022. Learn more about us, our work, and our mission on our website: https://www.costellomedical.com/

About You

You’re proactive, enthusiastic and keen to learn, with a positive, ‘can-do’ attitude. You enjoy working in a fast-paced, collaborative environment and are excited by the opportunity to build your skills while contributing to meaningful work in healthcare.

Essential requirements for the role are:

• An undergraduate degree in a relevant subject (e.g., Marketing, Communications, English) or equivalent experience in a marketing-related role supporting company marketing or business development activities
• Familiarity with key digital marketing tools and platforms (e.g., LinkedIn, HubSpot, WordPress), alongside a strong interest in learning new systems and technologies
• Excellent written communication skills, with a high level of attention to detail and the ability to review and improve your own work
• Strong organisational skills, with the ability to manage multiple tasks, prioritise effectively and meet deadlines
• A collaborative approach, with confidence building relationships and tailoring communication for different audiences
• Good general IT skills, including Microsoft Office (Word, Excel, PowerPoint), and confidence working with data

Desired requirements for the role are:

• Experience supporting marketing projects, campaigns or events
• Experience with paid media, PR, data dashboards, or CRM systems
• An interest in using technology or AI tools to improve efficiency and ways of working

What We Offer

Alongside our award-winning company culture, where every team member is celebrated, respected, and has their voice heard, we are proud to offer a comprehensive benefits package that includes:

• A starting salary of £26,250 per annum outside of London (£28,860 per annum in London). For candidates bringing significant previous experience, we may be able to offer a higher starting salary
• The opportunity to start and build your career with a growing and award-winning company, who focuses on the wellbeing, motivation, and development of their staff at all levels
• 25 days’ annual leave plus bank and public holidays, as well as a holiday buy and sell scheme
• Flexible working hours and the chance to work from home for up to half of your working time after passing probation
• Flexible benefits scheme offering cash payments, additional pension contributions and more
• Private Medical Insurance which offers comprehensive cover on a “medical history disregard” basis
• Paid study leave and funding for external qualifications
• Critical Illness Cover, Income Protection and Life Assurance
• Paid and unpaid sabbaticals based on length of service

Learn more about our full reward package and the other benefits of working for Costello Medical: https://www.costellomedical.com/careers/benefits-package-in-the-uk/

Hybrid Working Policy: We believe that having face-to-face time in the office holds many benefits and is central to ensuring that the community we have created, where people have a workplace they belong to and feel part of, is never lost. At the same time, we recognise that homeworking can improve work life balance, reduce commuting times and costs, and provide the opportunity to juggle personal commitments.

Therefore, we offer flexible working arrangements that allow our colleagues who have passed probation to work from home up to half their time, measured across a 2-week rolling period. During your probationary period (normally the first 6 months of the role), you will be able to work from home 1 day per week.

The Application Process

You are required to submit your CV and a cover letter via our online application form. In your cover letter, you must explain why you think you would be suited to the role and why you would like to join Costello Medical, with examples to support both. Your CV should clearly state the dates of all qualifications and grades achieved where applicable.

Our recruitment process includes a telephone interview with a member of the Talent Acquisition team, followed by an assessment for you to complete in your own time. If successful, you will be invited to a final interview. Our standard recruitment process lasts around 2 to 4 weeks, however this can be adapted if necessary.

As an equal opportunity employer, we are committed to fostering a diverse and inclusive workforce and, throughout the recruitment process, there are a number of reasonable adjustments we can provide: https://www.costellomedical.com/reasonable-adjustments/

Please note that, whilst we embrace AI to innovate and improve processes, your role may involve working with confidential data that cannot be uploaded to AI. Therefore, it is important for us to assess your own skills and abilities, so we recommend that you do not rely solely on this technology to generate any application materials.

Visa Sponsorship

Please note that this role does not meet the eligibility criteria for visa sponsorship, and you will therefore need the right to work in the UK independently from the company.