AT OMASS, WE
Transform Lives, Together
Every day, OMassians do incredibly meaningful work, supported by a talented and caring team.
We’re at the start of a new and exciting chapter and we’re growing. For scientists, we’re a place to do truly pioneering research and development alongside world-class experts. For non-science folk, we know our work plays a vital role in discovering new therapies that can make a real difference to people’s lives.
Find out how you could make an impact here:

Transform patients’ lives

Do pioneering science with world-class experts

Develop yourself daily

Build something special, together

The big and little things, taken care of

Find out more by downloading a copy of our employee value proposition here.

OMASS
Meet some of our world-class experts
Rosamond Deegan
Chief Executive Officer
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Ali Jazayeri
Chief Scientific Officer
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Hayley Davies
Executive Assistant
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Adam Jan Sanderson
Director, Medicinal Chemistry
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Amir Feizi
Director, Bioinformatics
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Idlir Liko
Senior Director, Technology
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Katharina Duerr
Director, Protein Biochemistry and Structural Biology
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Miguel Silva
Senior Director, Strategy
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Karolina Gherbi
Director
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Chudar Rameshwaran
Financial Controller
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Laia Malet Sanz
Associate Director
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Lewis Pennicott
Principal Scientist
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Maria Musgaard
Principal Scientist
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Agni Gavriilidou
Senior Scientist I
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Benjamin Tehan
Senior Director, Computational Chemistry
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Elvira Diamantopoulou
Senior Scientist I
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Fernando Almeida
Senior Scientist II
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Kathy Sengmany
Senior Scientist II
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Kleitos Sokratous
Principal Scientist
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Laurence Towner
Senior Scientist I
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Mark Soave
Senior Scientist II
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Rachael Skyner
Senior Scientist II
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Reda Assal
Principal Scientist
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Shahid Rehan
Senior Scientist II
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Viviane Mignone
Senior Scientist II
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Luigi De Colibus
Senior Scientist II
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Hsin Loke
Senior VP Finance and Operations
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Jonathan Hopper
VP Platforms
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Steven Charlton
VP Pharmacology
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Lauren Ross
Human Resources Advisor
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Tatiana Silva
Scientist II
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Srinath Krishnamurthy
Senior Scientist II
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Christine Oswald
Principal Scientist
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Elias Hamida
Director
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Jonathan Roffey
VP Head of Medicinal Chemistry
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Charlie Lay
Senior Scientist I
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Mario Hensen
Senior Scientist II
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Joanne Blowers
Site Operations Manager
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Alex Wilkinson
Senior Scientist I
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Rei Matsuoka
Principal Scientist
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Rose Wilcox
Scientist I
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Tina Bateman
Assistant accountant
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Nasreen Hajmahmoud
Scientist I
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Winfried Barchet
VP Immunology
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Cameron Harper
Senior Scientist I
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Donna Smith
Director DMPK
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Raphael Reinbold
Senior Scientist I
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Julia Sampson
VP, Nonclinical Development
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Aisha Ben-Younis
Scientist II
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Beatrice Manzan
Scientist II
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Feng Qu
Senior Scientist I
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Elliot Nelson
Senior Scientist I
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Sophia Reyes
Accounts Payable Assistant
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Hossain Akther
Senior Scientist I
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Abril Arredondo
Laboratory Technician
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Juliana Lima
Scientist II
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Hanna Machray
HR Director
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Melissa Faris
Chief Business Officer
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Dillon Popat
Scientist II
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Stuart Hadley
Senior Director, CMC
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Emma Sisley
Senior Scientist I
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Olivia Robb
Principal Scientist
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Rosamond Deegan
Chief Executive Officer
As CEO I enjoy developing strategy, managing the Board and engaging our team. I am focused on making a difference to patients with orphan and immunological disease.

Born England |

Joined 2019 |

Fun Fact Table Football Aficionado

Ali Jazayeri
Chief Scientific Officer
A card-carrying science enthusiast who can’t believe his good fortune of working with talented, smart scientists and cutting-edge technologies every day on exciting projects with the potential to discover novel medicines.

Born Iran |

Joined 2018 |

Fun Fact Ancestry DNA composition: 99.4% Western Asian and North African, 0.5% Sudanese and 0.1% unassigned looking for a home!

Hayley Davies
Executive Assistant
As Executive Assistant to the CEO, CSO and CBO, I am a fundamental part of the Corporate team, providing support for the smooth running of the Executive team diaries whilst also supporting the wider Management team.

Born England |

Joined 2018 |

Fun Fact I have a poem published in a children’s book.

Adam Jan Sanderson
Director, Medicinal Chemistry
As Director of Medicinal Chemistry, I enjoy helping the team turn weakly active compounds into potent safe human medicines.

Born England |

Joined 2021 |

Fun Fact Recently learned to sail and wake surf (not at the same time)

Amir Feizi
Director, Bioinformatics
As the Director of Bioinformatics, I am committed to develop and establish a data-driven and AI-enabled target identification and validation strategy with a focus on the orphan and immunological diseases.

Born Iran |

Joined 2020 |

Fun Fact I am part-time Kamancheh player (Persian bowed string instrument)

Idlir Liko
Senior Director, Technology
As Director of Technology, I am proud in leading a team in the development of novel native MS-based platforms and applying them to biological systems with direct implication in immunological disorders.

Born Albania |

Joined 2016 |

Fun Fact I have studied in 5 countries

Katharina Duerr
Director, Protein Biochemistry and Structural Biology
As Director of Protein Biochemistry & Structural Biology, I enjoy working with a fantastic team of protein biochemists and structural biologists to provide the mass spec platforms at OMass with high quality protein and to solve x-ray and cryo-EM structures for guiding the design of small molecule drug candidates.

Born Germany |

Joined 2020 |

Fun Fact Chocolate fairy

Miguel Silva
Senior Director, Strategy
As Strategy Director, I enjoy thinking about the best path forward for our programs and how we can make the biggest difference to patients.

Born Portugal |

Joined 2020 |

Fun Fact Previous 2x office ping pong champion

Karolina Gherbi
Director
As a molecular pharmacologist, I am committed to discovering novel therapeutics to improve patients’ lives.

Born Bulgaria |

Joined 2020 |

Fun Fact STEM Enthusiast

Chudar Rameshwaran
Financial Controller
As Financial Controller, I lead the finance function and I am responsible for maintaining all the financial systems, as well as supporting the wider success of the business.

Born Sri Lanka |

Joined 2021 |

Fun Fact Can stand on one leg for an absurd period of time

Laia Malet Sanz
Associate Director
As a Medicinal Chemist, I really enjoy generating new hypothesis to improve our molecules, testing them and rationalising the results. Ultimately, I aim to add value to our projects and deliver successful clinical candidates.

Born Spain |

Joined 2020 |

Fun Fact As well as spending time with my family, I like sport and used to play Table Tennis

Lewis Pennicott
Principal Scientist
As a Principal Scientist in Medicinal Chemistry, I strive to design compounds that will improve the lives of patients with immunological or genetic disorders.

Born England |

Joined 2021 |

Fun Fact Table Tennis enthusiast

Maria Musgaard
Principal Scientist
As a computational chemist, I am focused on developing models for understanding and predicting the interactions between potential drugs and their biological targets as well as contributing to designing new potential drug molecules.

Born Denmark |

Joined 2021 |

Fun Fact Often seen on the river in a kayak or on a stand-up paddle board

Agni Gavriilidou
Senior Scientist I
As a scientist in the Mass Spectrometry team, I enjoy developing our Native MS platforms. I am focused on delivering targeted solutions for our diseases.

Born Greece |

Joined 2018 |

Fun Fact Capoeira teacher

Benjamin Tehan
Senior Director, Computational Chemistry
As head of Computational Chemistry, I utilise and empower computational means to enable more intelligent decisions faster.

Born Australia |

Joined 2019 |

Fun Fact Can shear sheep

Elvira Diamantopoulou
Senior Scientist I
As a Senior Scientist in pharmacology, I enjoy developing new cell-based assays suitable for high-throughput screening. I am passionate about using robotic systems to automate my assays and working towards shared goals.

Born Greece |

Joined 2019 |

Fun Fact Netflix enthusiast

Fernando Almeida
Senior Scientist II
As an LC-MS enthusiastic and Senior Scientist, I have developed the AS-MS platform for compound library screening and hitting the nail on the head for compound finding across multiple company targets.

Born Brazil |

Joined 2019 |

Fun Fact Football lover and H. Murakami’s books passionate

Kathy Sengmany
Senior Scientist II
As a senior scientist, I enjoy being a part of a diverse, collaborative team, working towards developing treatments for orphan and immunological diseases.

Born Australia |

Joined 2019 |

Fun Fact Enjoys walks through the English countryside

Kleitos Sokratous
Principal Scientist
As a Senior Scientist, I enjoy working on the development of high-resolution native mass spectrometry technology tailored for high-throughput drug screening.

Born Cyprus |

Joined 2019 |

Fun Fact Gliding

Laurence Towner
Senior Scientist I
As a Senior Scientist, I am driven by a fascination with the profound influence of the immune system on heath and disease and to find ways to modulate it to benefit patients’ lives.

Born England |

Joined 2021 |

Fun Fact Keen musician and songwriter

Mark Soave
Senior Scientist II
As a Senior Scientist, I am focused on delivering high quality research, contributing to OMass' efforts in tackling orphan and immunological diseases.

Born Germany |

Joined 2021 |

Fun Fact I direct and sing with a Barbershop Chorus

Rachael Skyner
Senior Scientist II
As a cheminformatician, I am focused on complementing the work of experimentalists by finding new and interesting ways to analyse data and make new predictions.

Born United Kingdom |

Joined 2021 |

Fun Fact Board game geek

Reda Assal
Principal Scientist
As a senior scientist, I enjoy leading GPCR biochemistry projects for drug discovery/structural biology programs. Prior to that I successfully co-led a structural biology project for the human solute carrier in Pasteur Institute (Paris).

Born Algeria |

Joined 2018 |

Fun Fact a blue flair for membrane protein delivery.

Shahid Rehan
Senior Scientist II
I’m passionate about doing a curiosity driven and impact-oriented science in the lab.

Born Pakistan |

Joined 2021 |

Fun Fact Travel, hiking, cricket

Viviane Mignone
Senior Scientist II
As Senior Scientist I enjoy developing new assays, finding the best way to address questions that come along with the projects. I am proud to be part of such a collaborative team, focused on delivering new treatments for patients with immunological diseases.

Born Brazil |

Joined 2019 |

Fun Fact Love Volleyball

Luigi De Colibus
Senior Scientist II
Senior Scientist II focused on developing a structural biology pipeline to accelerate drug discovery and improve patients’ lives.

Born Italy |

Joined 2021 |

Fun Fact Blue

Hsin Loke
Senior VP Finance and Operations
As VP of Finance and Operations, I am responsible for ensuring we have Finance, People and IT enablers in place to deliver our ambition of making new medicines. I am passionate about creating an environment where people thrive and can do their best work.

Born Malaysia |

Joined 2018 |

Fun Fact Zwift virtual bike racing and knitting, not at the same time….!

Jonathan Hopper
VP Platforms
As VP Platforms and Founder, it has been a privilege to help OMass grow and transform into a drug discovery company with the potential to truly impact patients with immunological diseases.

Born England |

Joined 2016 |

Fun Fact Snowboarding

Steven Charlton
VP Pharmacology
As VP Pharmacology I am proud to lead an excellent team of pharmacologists and immunologists as we validate new targets and identify the optimal compounds for their therapeutic modulation.

Born United Kingdom |

Joined 2020 |

Fun Fact Passionate about live music

Lauren Ross
Human Resources Advisor
As Human Resources Assistant, I enjoy supporting the workforce and take pride in aiding the growth of the company via recruitment and onboarding processes.

Born England |

Joined 2022 |

Fun Fact I enjoy running and crime documentaries.

Tatiana Silva
Scientist II
As a mass spectrometry scientist I enjoy learning the ins and outs of methods and equipment. As such, I am focused on making a positive contribution to the team.

Born Portugal |

Joined 2022 |

Fun Fact Crazy plant lady

Srinath Krishnamurthy
Senior Scientist II
As a Senior Scientist at OMass, I enjoy tackling and solving 'complex' problems. I am excited to contribute towards the development of drugs against challenging targets and orphan diseases.

Born India |

Joined 2022 |

Fun Fact I love racquet sports, hiking, long board games and ridiculously long fantasy fiction books.

Christine Oswald
Principal Scientist
As a Principal Scientist in the Protein Biochemistry & Structural Biology department I am contributing to a better understanding of ligand-protein interactions in order to develop new medicines.

Born Germany |

Joined 2022 |

Fun Fact Acted in an Indian movie

Elias Hamida
Director
As the Associate Director, Financial Planning and Analysis I am focused on helping develop financial planning processes, alongside other Finance-related projects to ultimately help OMass reach its objective to discover new drugs to treat orphan and immunological disease.

Born England |

Joined 2022 |

Fun Fact Trilingual

Jonathan Roffey
VP Head of Medicinal Chemistry
As VP, Medicinal Chemistry, I focus on enabling the journey of a therapeutic hypothesis to the development of a new medicine for patients.

Born England |

Joined 2022 |

Fun Fact I am a keen outdoor swimmer

Charlie Lay
Senior Scientist I
As a pharmacologist supporting the programs at OMass, I am proud to be part of a highly skilled team developing new medicines for unmet needs.

Born England |

Joined 2022 |

Fun Fact I brew my own beer

Mario Hensen
Senior Scientist II
As a Senior Scientist I enjoy working on membrane- and membrane-associated proteins, focusing on their better understanding using state-of-the-art technology, always driven by the wish to help and improve the life of patients with immunological and orphan diseases.

Born Germany |

Joined 2022 |

Fun Fact I am planning to build a wooden toaster

Joanne Blowers
Site Operations Manager
As Site Operations Manager, I strive to ensure the smooth running of the building and facility to allow the company to focus on achieving great science.

Born England |

Joined 2022 |

Fun Fact I enjoy travelling and I once did a 10 month around the world trip.

Alex Wilkinson
Senior Scientist I
As a Scientist II, I am passionate about delivering high-quality research with translational impact for patients with orphan and immunological diseases.

Born England |

Joined 2022 |

Fun Fact I enjoy cooking, hiking and aerial silks.

Rei Matsuoka
Principal Scientist
As a Principal Scientist in the Protein Biochemistry & Structural Biology department (especially for cryoEM), I enjoy solving the protein structure by using cryoEM and find new insight to understand the function of protein.

Born Japan |

Joined 2022 |

Fun Fact Programing, developing new methods and Star watching

Rose Wilcox
Scientist I
As a pharmacologist, I aspire to contribute to the development of novel therapeutics targeting orphan diseases with the aim of positively impacting patients’ lives.

Born England |

Joined 2022 |

Fun Fact Arts and Crafts Enthusiast

Tina Bateman
Assistant accountant
As Assistant accountant, I enjoy working as part of the finance team, and strive to provide help and support others in the workplace.

Born England |

Joined 2022 |

Fun Fact I love F1 and followed since I was 16.

Nasreen Hajmahmoud
Scientist I
As a scientist, I enjoy delving deeper into the cellular mechanisms of disease to investigate how we can intervene pharmacologically. I am particularly interested in researching novel therapeutics for inflammatory and immunological conditions.

Born America |

Joined 2022 |

Fun Fact I love dancing

Winfried Barchet
VP Immunology
As VP Immunology it is my privilege to help deliver on the promise of Immunology. At OMass this means translating the emerging knowledge on key immunoregulatory mechanisms into novel therapies that alleviate the suffering for those afflicted by autoinflammatory and autoimmune disease.

Born Germany |

Joined 2023 |

Fun Fact Passable Pizzaiuolo

Cameron Harper
Senior Scientist I
As a medicinal chemist I enjoy designing compounds based on data, with the ultimate goal being to find a compound that could transform patients' lives.

Born England |

Joined 2023 |

Fun Fact I swing a golf club right-handed, but with a left-handed grip.

Donna Smith
Director DMPK
As Director DMPK I am proud to make a difference in developing novel therapies to patients with orphan diseases.

Born England |

Joined 2023 |

Fun Fact Handy vintage dressmaker

Raphael Reinbold
Senior Scientist I
As Senior Scientist in the Protein Biochemistry & Structural Biology team I am working on the production and characterisation of various proteins. I am ultimately driven by the desire to develop new medicines to improve patients’ lives.

Born Germany |

Joined 2023 |

Fun Fact I love football and tennis; I have an allotment together with 2 friends.

Julia Sampson
VP, Nonclinical Development
As VP of Nonclinical Development, I enjoy the excitement, and the challenges, of developing potential new medicines, moving promising molecules from the research stages into early development and beyond.

Born England |

Joined 2023 |

Fun Fact Recent addiction to indoor sky diving.

Aisha Ben-Younis
Scientist II
As a Scientist at OMass, I use the power of native mass spectrometry to aid the development of novel therapeutics for patients with immunological and inflammatory diseases.

Born England |

Joined 2023 |

Fun Fact I enjoy sewing and knitting my own clothes.

Beatrice Manzan
Scientist II
As a passionate Scientist II and immunologist at OMass, my focus is on delivering impactful research and developing novel therapeutics for orphan and immunological diseases. I take pride in being part of a skilled team dedicated to translating emerging knowledge into innovative therapies to contribute towards improving the lives of patients.

Born Italy |

Joined 2023 |

Fun Fact I love dogs (especially Corgis), HipHop and Nutella.

Feng Qu
Senior Scientist I
As a Senior Scientist, I enjoy tackling challenging membrane protein targets.

Born China |

Joined 2023 |

Fun Fact I play the bamboo flute.

Elliot Nelson
Senior Scientist I
As a research software engineer, I strive to make it easy and efficient for scientists to understand, view and use their data.

Born England |

Joined 2023 |

Fun Fact I walked 100km in one go for charity.

Sophia Reyes
Accounts Payable Assistant
As an Accounts Payable Assistant, I am focused on supporting the finance function in their day-to-day transactions.

Born England |

Joined 2023 |

Fun Fact Bilingual.

Hossain Akther
Senior Scientist I
As an Immunologist at OMass, I am focused on conducting translational research to develop and deliver novel therapies for inflammatory conditions. I strive to make a difference for patients with orphan and immunological diseases.

Born Bangladesh |

Joined 2023 |

Fun Fact Enthusiast of board games and team sports.

Abril Arredondo
Laboratory Technician
As a Lab Technician, I enjoy being part of a team while having my own set of tasks and research. My focus has been on cell line maintenance for research and optimising protocols.

Born Costa Rica |

Joined 2023 |

Fun Fact Love travelling and baking

Juliana Lima
Scientist II
As a mass spectrometry scientist at OMass, I am excited about investigating biomolecule interactions and being part of the disruptive drug discovery for immunological diseases.

Born Brazil |

Joined 2023 |

Fun Fact I love climbing mountains.

Hanna Machray
HR Director
As an HR Director, I enjoy supporting employee development and working on strategic HR initiatives. I’m passionate about fostering a positive workplace culture for organisational success

Born England |

Joined 2023 |

Fun Fact I’m training to become a marathon Kayaker.

Melissa Faris
Chief Business Officer
As Chief Business Officer I lead Business Development and Commercial for OMass with a passion to continually maximize the value of our assets and proprietary drug platform.

Born US |

Joined 2023 |

Fun Fact Most days I am Genius at NYT spelling bee

Dillon Popat
Scientist II
As a pharmacologist, I am passionate about producing high-quality research to characterise proteins involved in immunological and orphan diseases to further OMass' goals of providing therapeutics for these conditions.

Born England |

Joined 2023 |

Fun Fact Passionate Cook, Failed Wood Carver.

Stuart Hadley
Senior Director, CMC
As the Director of CMC I am focused on developing product formulations as well scaling up and manufacturing API and drug products.

Born England |

Joined 2024 |

Fun Fact Theme park enthusiast

Emma Sisley
Senior Scientist I
As a scientist in the mass spectrometry team I enjoy developing native mass spectrometry methods to aid drug discovery.

Born England |

Joined 2024 |

Fun Fact A trail running enthusiast, the muddier the better!

Olivia Robb
Principal Scientist
As a Principal Scientist in DMPK, I enjoy collaborating with colleagues, interrogating, and interpreting data to address complex scientific questions. I am focused on delivering high-quality decision-making data to support the development of new medicines for patients.

Born England |

Joined 2024 |

Fun Fact I love taking street dance, tap, and aerial hoop classes.

What we get up to

We’re growing steadily, but we’re still small enough for everyone to know everyone. There are monthly company lunches, regular social events, and introductory videos to everyone in the team. Once a year, the whole company gets together offsite – and if we’re lucky, the ‘OMass band’ does a set!

Our Values
We’re values-led people
Our Values aren’t just words on a wall, they’re a shared articulation of who we are and who we want to be. Everyone at OMass was involved in developing them, so we know they’re an authentic representation of what we stand for, and we work together to build them into everything we do.
  • Ambitious

  • Responsible

  • Innovative

  • Focused

  • Caring

  • Collaborative

Building an inclusive culture

A core commitment under our ‘Caring’ value is ensuring that everyone feels welcome, and opportunity is equal here. We proactively educate ourselves and each other about how we can be more inclusive, and then work to remove bias from our processes. We’re always trying to improve, but we do celebrate the diversity we already have; no single gender dominates here, and at our last count, we scored 22 birth countries out of just over 40 people.

= Nationalities represented within our team

Working towards a more sustainable future

Our caring, ambitious, and responsible values also extend to our views on sustainability. Part of our commitment to deliver our vision of improving the lives of patients with rare diseases or immunological conditions includes a responsibility to care for our environment. We assess the impact decisions have on our environmental goals and make sustainability a top priority. We are always looking for innovative ways to become more environmentally friendly and, as a demonstration of our commitment, we have pledged to measure and offset all our scope 1 & 2 emissions moving forward.

OUR BENEFITS
The big and little things, taken care of

We’ve got the big things you need covered; a competitive remuneration package, the chance to share in the success of the company, and hybrid working arrangements. Here are just a few of the benefits we offer.

  • Private health care
  • Cycle to work scheme – save money on a new bike
  • Life Assurance
  • Income protection, currently including 24/7 access to advice on physical, mental and financial wellbeing
  • Company pension, whereby OMass also contributes any NI savings

It’s often the personal touches that make the biggest difference, though. Because we’re a small, agile team, we’ll listen, move fast, and support you with personalised help when you need it.

OUR LOCATION
Where to find us

We currently have state-of-the-art laboratories and offices in our new flagship site on the Oxford Business Park. In the lab, there is plenty of space to experiment and collaborate, but we also provide social spaces in which to connect and have fun, and a well-being room (we all need a quiet moment sometimes).

 

OMass Therapeutics

Building 4000, Chancellor Court, John Smith Drive, ARC Oxford, OX4 2GX, UK
E: info@omass.com

JOIN US
Apply Now
Interested in joining us and transforming lives, together? Click on our open roles for more details and how to apply. If you like the sound of OMass and think you could thrive here, but there isn’t a suitable open role currently, you can also submit a speculative application by clicking on the relevant link below. Be sure to include both your CV and a covering letter explaining how you think you could make an impact at OMass, and how your skills and personal qualities align with the company we’re building.
Director of R&D Project Management
Oxford
Speculative Applications (Chemistry)
Oxford
Speculative Applications (Mass Spectrometry)
Oxford
Speculative Applications (Pharmacology & Immunology)
Oxford
Speculative Applications (Protein Biochemistry & Structural Biology)
Oxford

For any queries relating to the application process please email jobs@omass.com.

OMass is an equal opportunity employer committed to a culturally diverse and international team.

Strictly no agencies. Please note that OMass does not accept speculative applications from recruitment agencies.

Please note: by applying for a position with OMass you agree to the terms of our Job Applicant Privacy Notice.