
Xaira Therapeutics · South San Francisco, California, United States
About Xaira Therapeutics Xaira is an innovative biotech startup focused on leveraging AI to transform drug discovery and development. The company is leading th...
About Xaira Therapeutics
Xaira is an innovative biotech startup focused on leveraging AI to transform drug discovery and development. The company is
leading the development of generative AI models to design protein and antibody therapeutics, enabling the creation of medicines
against historically hard-to-drug molecular targets. It is also developing foundation models for biology and disease to enable
better target elucidation and patient stratification. Collectively, these technologies aim to continually enable the
identification of novel therapies and to improve success in drug development. Xaira is headquartered in the San Francisco Bay
Area, Seattle, and London.
About the Role
We are seeking an exceptional and highly motivated Senior Scientist to architect and lead our efforts in in vivo CRISPR screening.
In this pivotal role, you will be instrumental in advancing our mission to pioneer biological discoveries through high-throughput
functional genomics. You will lead strategic initiatives that push the technical boundaries of genetic screening at the
intersection of mouse models, data science, AI/ML, and translational biology. This position is ideal for a seasoned discovery
scientist who excels at translating data-driven insights into therapeutic research while balancing strategic leadership with
advanced individual technical contributions.
Key Responsibilities
relationships at scale.
from large-scale functional genomics datasets.
presentations.
guidance and career development.
discovery goals.
program milestones.
Requirements
management, and in vivo experimentation, with an understanding of animal welfare and regulatory standards.
multidisciplinary teams.
Preferred Qualifications
Compensation
We offer a competitive compensation and benefits package, seeking to provide an open, flexible, and friendly work environment to
empower employees and provide them with a platform to develop their long-term careers. A Summary of Benefits is available for all
applicants. We offer a competitive package that includes base salary, bonus, and equity. The base pay range for this position is
expected to be $136,000 - $170,000 annually; however, the base pay offered may vary depending on the market, job-related
knowledge, skills and capabilities, and experience.
Xaira Therapeutics an equal-opportunity employer. We believe that our strength is in our differences. Our goal to build a diverse
and inclusive team began on day one, and it will never end.
TO ALL RECRUITMENT AGENCIES: Xaira Therapeutics does not accept agency resumes. Please do not forward resumes to our jobs alias or
employees. Xaira Therapeutics is not responsible for any fees related to unsolicited resumes.
Senior Scientist Model Systems About Relation Relation is a sector defining TechBio company developing transformational medicines, with technology at our core. Our ambition is to understand human biology in unprecedented ways, discovering therapies to treat some of life’s most devastating diseases. We leverage single-cell multi-omics from patient tissue, functional assays, and machine learning to drive disease understanding, from cause to cure. We are scaling rapidly and building a team of exceptional individuals to push the boundaries of drug discovery. You will work in highly interdisciplinary teams where biology, computation, and engineering come together to solve complex problems that have not been solved before. Our state-of-the-art wet and dry labs in the heart of London are designed to accelerate this integration and translate insight into impact. We are committed to building diverse and inclusive teams. Relation is an equal opportunities employer and does not discriminate on the basis of gender, sexual orientation, marital or civil partnership status, gender reassignment, race, colour, nationality, ethnic or national origin, religion or belief, disability, or age. By joining Relation, you will help define how medicines are discovered and deliver meaningful impact for patients. The opportunity At Relation, we are building proprietary large-scale datasets to advance the prediction of disease-associated genes using cutting-edge functional genomics and machine learning approaches. We are offering an exciting opportunity for an experienced Senior Scientist to drive our automation capabilities in running large scale perturbation studies on mono- and co-culture systems of fibrotic disease. In this role, you will be at the forefront of scientific discovery and make a meaningful impact in the field of biology, working at the intersection of science and technology within a rapidly growing TechBio company. The successful candidate will contribute significantly to capture the cellular response using a multimodal readout strategy that includes transcriptomics, proteomics and molecular signatures of functional phenotype. You will partner closely with colleagues across Discovery and Technology, whilst still being provided the opportunity to expand your skills and advance your knowledge-base on assay development, screening and automation. Day to day, you will have the following key responsibilities: * Integrate human primary cell lines into robust monoculture and co-culture models that are capable of large batch production and compatible for high throughput readouts, with the necessary quality control (QC). * Characterise and optimise multiplexed imaging and biochemical assays that provide readouts for functional phenotyping. * Transition manually developed perturbation models into an automated arrayed screen. * Contribute to the development and implementation of new technologies, workflows, and operational infrastructure. * Carrying out data analysis and relevant quality assurance protocols. * Communicate outcomes of your work to team members and external parties in written or verbal reports. * Stay up to date of relevant scientific literature and incorporate new findings into research project planning and experiment design. * Proactive identification of potential project issues and communication of proposed solutions to the team. * Communicate closely with cross-functional colleagues across biology, machine learning and automation disciplines and assist with solving complex scientific challenges and accelerate programme delivery. Professionally, you will have * PhD with 5+ years experience and demonstrable knowledge in assay development and/or target validation. * Strong background in culturing of primary and immortalised cell lines as well as functional disease relevant endpoints with the aim of ensuring required reproducibility and sensitivity in those assays. * Hands-on experience in image capture and data interpretation using High content imaging with cell painting. * Scientific knowledge of fibrosis across various tissues. * Knowledge of CRISPR/Cas9 gene editing for modulating gene expression in 2D and 3D cell systems. * Prior experience running pathway-modifying perturbation screens. * Experience with automated laboratory systems. * Extensive knowledge in industry-standard large ‘omic dataset handling and recording keeping. * Excellent communication, influencing and interpersonal skills, with the ability to thrive in a collaborative, cross-functional, matrixed environment * High motivation, scientific rigor and be able to comfortably operate in a fast-paced, evolving biotech setting Personally, you * Are comfortable working in a matrixed environment, balancing multiple stakeholders and contributing effectively across teams. * Take ownership of your work, proactively seek opportunities to contribute, and enable others to do their best work. * Communicate openly and directly, give and receive feedback constructively, and handle challenging conversations with respect. * Actively seek out diverse perspectives, build strong working relationships, and contribute to shared goals across teams. * Embrace challenges with openness and resilience, set high standards for yourself, and strive to deliver meaningful outcomes. Working Style & Culture at Relation At Relation, we operate in a matrixed, interdisciplinary environment, where impact is driven through collaboration across scientific, technical, and operational domains. We collaborate, and you will partner with colleagues across multiple teams and projects, contributing your expertise while aligning to shared company priorities. We work together and win together! The patient is waiting! Recruitment Agencies Please note that Relation does not accept unsolicited resumes from agencies. Resumes should not be forwarded to our job aliases or employees. Relation will not be liable for any fees associated with unsolicited CVs. Relation is a committed equal opportunities employer.
ABOUT RELATION Relation is a sector defining TechBio company developing transformational medicines, with technology at our core. Our ambition is to understand human biology in unprecedented ways, discovering therapies to treat some of life’s most devastating diseases. We leverage single-cell multi-omics from patient tissue, functional assays, and machine learning to drive disease understanding, from cause to cure. We are scaling rapidly and building a team of exceptional individuals to push the boundaries of drug discovery. You will work in highly interdisciplinary teams where biology, computation, and engineering come together to solve complex problems that have not been solved before. Our state-of-the-art wet and dry labs in the heart of London are designed to accelerate this integration and translate insight into impact. We are committed to building diverse and inclusive teams. Relation is an equal opportunities employer and does not discriminate on the basis of gender, sexual orientation, marital or civil partnership status, gender reassignment, race, colour, nationality, ethnic or national origin, religion or belief, disability, or age. By joining Relation, you will help define how medicines are discovered and deliver meaningful impact for patients. THE OPPORTUNITY This is a unique opportunity for a senior data scientist to work on DNA sequence modelling, statistical machine learning, and functional genomics in support of target discovery and mechanism elucidation. You will develop and apply computational models that connect genetic variation and regulatory DNA sequence to downstream molecular phenotypes, cellular programmes, and disease biology. Embedded within the Rosalind team you will build and evaluate models that link sequence to function - including variant effect prediction,regulatory activity modelling and representation learning for genomic data. DAY TO DAY YOU WILL: * Develop and implement machine learning models for DNA sequence, regulatory elements, and genetic variation in disease-relevant contexts. * Build, evaluate and benchmark models for sequence-to-function tasks such as variant effect prediction, regulatory activity prediction, and the interpretation of non-coding disease signals. * Integrate sequence-derived representations with transcriptomic, epigenomic, and perturbational datasets to uncover disease mechanisms and support target prioritisation. * Partner closely with experimental and machine learning researchers to validate hypotheses, interpret results, and guide downstream studies. * Communicate findings clearly to internal stakeholders, including presenting methods, results, and recommendations. * Contribute to publications, scientific communications, and project documentation, supporting scientific excellence and external visibility. PROFESSIONALLY, YOU WILL HAVE * PhD in computational biology, machine learning, statistics, genomics, bioinformatics, or a related quantitative discipline. * Post-PhD experience, ideally including time in an industry, biotech, or pharmaceutical environment. * Experience with DNA language models, genomic foundation models, or transformer-based sequence models. * Understanding of statistical machine learning and probabilistic modelling, with experience selecting and evaluating appropriate modelling approaches for complex biological datasets. * Knowledge of statistical genetics methods (e.g fine-mapping, colocalisation,, or variant to gene approaches). * High proficiency in Python (preferred) and R, with experience working in high-performance computing environments. * Ability to operate independently, driving projects from concept through delivery. * Bonus experience: * Familiarity with single-cell transcriptomics or patient-derived datasets. * Experience working in interdisciplinary teams within biotech or pharma settings. * Experience integrating machine learning models with genomics, single-cell, or perturbation datasets. * Familiarity with 3D genome / chromatin interaction data where relevant (Hi-C, Capture-C, etc.). PERSONALLY, YOU: * Are comfortable working in a matrixed environment, balancing multiple stakeholders and contributing effectively across teams. * Take ownership of your work, proactively seek opportunities to contribute, and enable others to do their best work. * Communicate openly and directly, give and receive feedback constructively, and handle challenging conversations with respect. * Actively seek out diverse perspectives, build strong working relationships, and contribute to shared goals across teams. * Embrace challenges with openness and resilience, set high standards for yourself, and strive to deliver meaningful outcomes. WORKING STYLE & CULTURE AT RELATION At Relation, we operate in a matrixed, interdisciplinary environment, where impact is driven through collaboration across scientific, technical, and operational domains. We collaborate, and you will partner with colleagues across multiple teams and projects, contributing your expertise while aligning to shared company priorities. We work together and win together! The patient is waiting! RECRUITMENT AGENCIES: Please note that Relation does not accept unsolicited resumes from agencies. Resumes should not be forwarded to our job aliases or employees. Relation will not be liable for any fees associated with unsolicited CVs. Relation is a committed equal opportunities employer.
About Relation Relation is a sector defining TechBio company developing transformational medicines, with technology at our core. Our ambition is to understand human biology in unprecedented ways, discovering therapies to treat some of life’s most devastating diseases. We leverage single-cell multi-omics from patient tissue, functional assays, and machine learning to drive disease understanding, from cause to cure. We are scaling rapidly and building a team of exceptional individuals to push the boundaries of drug discovery. You will work in highly interdisciplinary teams where biology, computation, and engineering come together to solve complex problems that have not been solved before. Our state-of-the-art wet and dry labs in the heart of London are designed to accelerate this integration and translate insight into impact. We are committed to building diverse and inclusive teams. Relation is an equal opportunities employer and does not discriminate on the basis of gender, sexual orientation, marital or civil partnership status, gender reassignment, race, colour, nationality, ethnic or national origin, religion or belief, disability, or age. By joining Relation, you will help define how medicines are discovered and deliver meaningful impact for patients. The opportunity Relation is offering an outstanding opportunity for a Data Scientist/Senior Scientist to support and shape statistical and population genomics efforts to accelerate target identification and validation across multiple therapeutic areas. You will work with large-scale human genetics resources (e.g. biobanks and population cohorts), internally generated data, and apply cutting-edge statistical genetics methodologies to generate actionable insights. You will operate at the interface of human genetics, computational biology, and machine learning, translating genetic evidence and multi-omics into target prioritisation frameworks and mechanistic hypotheses. You will play a key role in developing robust, scalable analysis pipelines and ensuring genetic insights are integrated into decision-making across the organisation. Day to day you will, * Perform statistical and population genomics analyses using large-scale datasets to support target discovery and validation. * Design and implement statistical genetics methodologies for target prioritisation, including approaches leveraging GWAS, fine-mapping, colocalisation, MR, polygenic risk, rare variant analyses, and functional annotation. * Develop scalable computational workflows for reproducible genetics analysis, enabling robust and efficient delivery across multiple programmes. * Integrate human genetics evidence with multi-omics datasets (e.g. transcriptomics, proteomics) to uncover disease mechanisms and prioritise actionable targets. * Partner closely with experimental, translational, and ML teams to validate hypotheses, interpret findings, and guide downstream decision-making. * Communicate results clearly and confidently to internal stakeholders, including presenting methods, results, risks/limitations, and recommendations. * Contribute to publications, scientific communications, and project documentation, supporting scientific excellence and external visibility. Professionally, you will have, * PhD in statistical genetics, genomics, computational biology, bioinformatics, or a related quantitative field. * Post-PhD experience is desiderable, ideally including time in an industry, biotech, or pharmaceutical environment. * Deep expertise in statistical genetics and population genomics, including experience with large-scale human genetic datasets and post-GWAS analyses. * High proficiency in Python (preferred) and R, with experience working in high-performance computing environments. * Ability to operate independently, providing technical expertise and driving projects from concept through delivery. * Bonus experience: * Familiarity with single-cell transcriptomics or patient-derived datasets. * Experience working in interdisciplinary teams within biotech or pharma settings. * Knowledge of machine learning techniques applied to biological data. * Understanding of the end-to-end drug discovery process and how genetic evidence informs decision-making. Personally, you: * Are comfortable working in a matrixed environment, balancing multiple stakeholders and contributing effectively across teams. * Take ownership of your work, proactively seek opportunities to contribute, and enable others to do their best work. * Communicate openly and directly, give and receive feedback constructively, and handle challenging conversations with respect. * Actively seek out diverse perspectives, build strong working relationships, and contribute to shared goals across teams. * Embrace challenges with openness and resilience, set high standards for yourself, and strive to deliver meaningful outcomes. Working Style & Culture at Relation At Relation, we operate in a matrixed, interdisciplinary environment, where impact is driven through collaboration across scientific, technical, and operational domains. We collaborate, and you will partner with colleagues across multiple teams and projects, contributing your expertise while aligning to shared company priorities. We work together and win together! The patient is waiting! RECRUITMENT AGENCIES: Please note that Relation does not accept unsolicited resumes from agencies. Resumes should not be forwarded to our job aliases or employees. Relation will not be liable for any fees associated with unsolicited CVs. Relation is a committed equal opportunities employer.