Executive Support Administrator

Never losing sight of our purpose

At Mestag we truly believe in our values and live by them every day. We’re ambitious about our science and its potential to deliver meaningful therapeutics to the patients that need them most. We believe in a culture of diversity, equality and investing in people to ensure our talented and passionate team members can fulfil their full potential.

We are based in spacious and modern laboratory and office facilities at Chesterford Research Park near Cambridge, UK – right in the very heart of the UK life science sector. Our facilities are equipped with state-of-the-art instruments to enable our dedicated researchers to deliver incredible science.

Mestag is backed by committed leading global investors, has world-class founders and a highly experienced leadership team.

We are now transitioning our lead programme into clinic - There has never been a better time to join #TeamMestag

Role Overview

Reporting to the Senior Executive Assistant (SEA), the Executive Support Administrator (ESA) will provide high-level administrative support to the Head of Corporate Development and Head of Development, while also assisting the wider Leadership Team and business as needed. This role involves close collaboration with the SEA and the Operations team to ensure smooth workflows and uphold the company’s values of passion, boldness, integrity, and teamwork. The successful candidate will be a strong team player with a proactive, collaborative approach.

Key Responsibilities

Meetings

- Organise and provide meeting support for the Head of Corporate Development and Head of Development, as well as the wider Leadership Team when required.

- Coordinate regular R&D Operations Leadership Team meetings, internal/external science review meetings, clinical meetings, and other external engagements.

- Prepare agendas, take accurate minutes, and distribute them promptly where required.

- Provide ad hoc meeting support and administrative assistance, as required, across the business.

Travel

- Manage complex domestic and international travel arrangements for the Head of Corporate Development, Head of Development and wider Leadership Team as required, including booking flights, hotels, and transfers, in line with company policies and budgets.

- Provide similar seamless travel coordination for the wider business as required.

Conferences:

- Book attendance at industry events, manage conference registrations, and coordinate all related travel requirements.

- Maintain conference tracking spreadsheets, monitor spend and liaise regularly with the Finance team to ensure accurate cost reporting.

General Office Administration

- Support the SEA with contract management, including maintaining the ContractSafe database, updating workflows, and ensuring timely turnaround of documentation using this online filing and e-signature platform.

- Ensure accuracy and security of all contracts and draft and manage execution of confidential disclosure agreements (CDAs).

- Process monthly credit card expenses promptly.

- Manage weekly office shopping and stationery orders.

- Assist the wider Operations team with daily office tasks, including deliveries and visitor bookings.

Team Support

- Coordinate and manage our team-building activities, seminars, and onsite charity events.

- Assist the SEA with planning and execution of company-wide events as required.

- Support the social committee with events and lunchtime learning sessions.

Collaboration & Additional Support

- Work closely with Operations teams (Facilities, Finance, People) providing assistance as needed to support organisational objectives.

- Provide cover for the SEA when required.

- Undertake additional EA-related responsibilities as needed to support evolving business requirements.

Candidate profile

- Previous experience with a strong administrative background.

- Excellent communication skills and proven ability to manage multiple complex calendars and scheduling across diverse locations and time zones. You should be adept at coordinating both domestic and international travel, as well as organising meetings and events at all levels of the organisation.

- Proficiency in IT, particularly with Word, Excel, and PowerPoint, is essential.

- Excellent organisational skills to be able to prioritise and handle multiple conflicting assignments at pace and with accuracy, whilst maintaining integrity and confidentiality.

- Ability to work independently yet with a collaborative style with the SEA and wider colleagues.

- Proactive approach, actively contributing to a vibrant and innovative working environment where improvements and new ideas are adopted and freely shared among the teams.

- Adaptability and resilience to work in a fast-paced, quickly changing environment, showing agility, flexibility and a can‑do attitude to meet deadlines and goals.

In return we can offer you

We work flexibly with a strong team spirit and offer a highly competitive total rewards package including competitive salaries, super pension contributions, private medical insurance, income protection, learning and development and more.

We have access to a range of onsite facilities including a gym, canteen, golf course, park walks and free on site parking.

As a team we achieve great things each day, and we take the time to celebrate successes, share and learn. We value the relationships of our close‑knit team and strive to make meaningful connections in our community. We frequently hold Town Halls and team lunches, and have an active social committee, organising regular events and ‘giving back’ activities supporting charities close to our hearts.

About Mestag Therapeutics

Mestag harnesses new insights into fibroblast‑immune interactions to develop impactful treatments for patients. We are progressing a pipeline of sophisticated first‑in‑class antibodies designed to improve the lives of patients with cancer and inflammatory disease. Together with our collaboration partner MSD we are also identifying novel targets for future therapies.

Our founding investigators comprise global experts in inflammatory disease, cancer, computational biology and fibroblast biology from the University of Oxford, Brigham & Women’s Hospital, Harvard Medical School and Cold Spring Harbor Laboratory. We are supported by leading life science investors SV Health Investors, Johnson & Johnson Innovation – JJDC, Inc., Forbion, GV (formerly Google Ventures) and Northpond Ventures.

Mestag is headquartered in Cambridge, UK, and in 2021 was recognised on the Fierce 15 list of innovative biotechnology companies.

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