Synthetic Medicinal Chemist

SoseiHeptares Cambridge United Kingdom Biotech
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Company Description

Sosei Heptares is an international biopharmaceutical company with a mission to make a significant contribution to improving the quality of life and health of people around the world. To achieve this, we will discover, design, and develop the most innovative and effective medicines for patients worldwide, through our world-leading patent-protected technology and platform.

Our core focus is on the discovery and early development of new medicines originating from our proprietary G Protein-Coupled Receptor (GPCR) targeted StaR® technology and Structure Based Drug Design (SBDD) platform capabilities. Today, we are advancing a broad and deep pipeline of novel medicines across multiple therapeutic areas, including neurology, immunology, gastroenterology, and inflammation diseases.

We have established partnerships with some of the world’s leading pharmaceutical companies and multiple emerging technology companies, including AbbVie, AstraZeneca, Biohaven, Genentech (Roche), GSK, Neurocrine Biosciences, Novartis, Pfizer, Takeda and Verily.

Sosei Heptares is headquartered in Tokyo, Japan with corporate and R&D facilities in London and Cambridge, UK. We have approximately 170 employees based at our state-of-the-art R&D research centre at Granta Park, Cambridge. The size of our company ensures optimum agility and transparent linkage between all activities from early discovery through to clinical development.

For more information, please visit LinkedIn: @soseiheptaresco | Twitter: @soseiheptaresco | YouTube: @soseiheptaresco


We are seeking a suitable candidate to join our Drug Discovery chemistry team as a synthetic chemistry specialist.

We have an opportunity for a laboratory-based role focused on innovative synthetic chemistry problem-solving skills to support the Sosei Heptares’ structure-based drug discovery platform and pipeline delivery.

Successful candidates will contribute to the overall scientific deliverables of the organisation by defining and implementing synthetic chemistry strategies, with opportunities to lead aspects of in-house and CRO teams. They will also play a key role in drug discovery project teams, interacting with scientists from other disciplines, including computational chemistry, molecular pharmacology and drug metabolism and pharmacokinetics (DMPK).

For the right candidate, this role provides an excellent opportunity to pursue a research career in an industry-leading company offering the unique environment of structurally enabled GPCR Drug Discovery.

The Role

The successful candidate will be expected to work both independently and as part of a wider team of scientists and:

  • Deliver high impact across multiple discovery projects by applying high end synthetic expertise and state of the art methodology
  • Enable syntheses and scale up of key molecules and templates
  • Drive synthetic excellence to enable more rapid progress of programmes and ‘open up’ novel chemical space
  • Perform effective troubleshooting and problem solving of challenging chemistry
  • Introduce and sponsor novel synthetic methodologies to the wider medicinal chemistry department
  • Represent and advocate synthetic medicinal chemistry within Sosei Heptares and in external settings
  • Lead CRO chemists to support synthesis enablement and delivery of target compounds
  • Maintain the highest levels of Health and Safety


Educational Requirements

A PhD, or BSc/MSc with equivalent experience, in Chemistry or related discipline

Desirable Skills and Experience Requirements

  • 2-5 years of relevant industry or academic (e.g. post-doc) synthetic experience
  • High level understanding of organic synthesis with track-record of applying deep knowledge in a practical setting
  • Strong analytical and problem-solving skills, and ability for lateral thinking
  • A track record of impacting drug discovery programmes through synthetic innovation or a track record of consistently enabling novel synthetic methods and/or successful application of novel methods to challenging synthetic targets in an academic environment
  • Ability to work highly effectively both in team environments and independently
  • Excellent communication and interpersonal skills, with ability to clearly communicate chemistry strategies to team, management, and collaborators both verbally and in written form, in English
  • Desire to gain experience and expertise in the medicinal chemistry and drug design
  • Enthusiasm to broaden understanding of the related scientific disciplines that are pertinent to drug discovery and early development (e.g. chemical biology, computational chemistry, structural biology, pharmacology, ADME, drug safety, and IP).

What’s in it for you?

  • State-of-the-art R&D centre located in the heart of the Cambridge science cluster
  • Competitive compensation package including discretionary cash bonuses
  • Eligible for grants of Restricted Stock Units in Sosei Group Corporation
  • 25 days annual leave in addition to public holidays
  • Employer contribution to pension
  • Private Medical Insurance and a cash plan for dental and optical reimbursement
  • Health and wellbeing benefits including a subsidised individual gym membership
  • Income protection to cover long term absences due to ill health
  • Group Death in Service equal to 4x basic annual salary

Why Sosei Heptares?

At Sosei Heptares, we are dedicated to the pursuit of scientific innovation. Our mission is to make a significant contribution to improving the quality of life and health of people around the world. To achieve this, we will discover, design, and develop the most innovative and effective medicines for patients worldwide, through our world-leading patent-protected technology and platform

Working at Sosei Heptares

The Sosei Heptares R&D centre is a modern, state-of-the-art centre located within easy shuttle reach of Cambridge and Whittlesford Parkway train stations. We offer a collaborative, diverse and inclusive working environment that considers your individual needs and believes in maintaining a sustainable work-life balance. You will be welcomed by a team of colleagues with decades of accumulated experience in their areas of expertise, happy to help you develop your own skills in a highly collaborative environment and who are keen to provide guidance and support in your personal and career development plans.

Our Vision and Values

To become one of Japan’s science and technology-led biopharmaceutical drug discovery champions. To achieve this, we will leverage our global know-how and operating agility to deliver a sustainable pipeline of first or best-in-class therapeutics, ensuring our place amongst the next generation of leading innovators.

We are guided by three fundamental values.

  • Limitless Compassion
  • Unswerving passion
  • Continuous self-innovation

These unchanging set of core values that serves as a guide across all our activities.

Join Us!

Other information

The successful candidate will be employed by Heptares Therapeutics Ltd, a UK wholly owned subsidiary of Sosei Group Corporation.

Sosei Heptares is committed to building a diverse and ambitious workforce, and to promoting equal opportunities in employment. We recognize that diverse and inclusive teams build a stronger and more innovative company. Therefore, all qualified applicants will be considered for employment: we do not discriminate based on age, disability, gender reassignment, marriage and civil partnership, pregnancy and maternity, race, religion or belief, sex, sexual orientation, or any other classification prescribed by law.

Applications should include a CV and covering letter, providing a short description of your background and interest in the role. Please apply through our on-line job’s portal with your application in pdf format, quoting reference number 2022-Synthetic-Med-Chem. The closing date for applications is 30th Sept 2022.

Sosei Heptares does not accept speculative or unsolicited CVs from agencies. All speculative or unsolicited CVs submitted without an agreement in place will be considered Sosei Heptares property and will not obligate us to pay a referral fee.

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