Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Principal Scientist, Protein Engineering

Xaira Therapeutics

Xaira Therapeutics seeks a Principal Scientist to lead protein engineering efforts in AI-driven therapeutic discovery. The role combines hands-on experimental work with scientific leadership, partnering with computational designers to develop protein and antibody therapeutics against challenging targets.

Responsibilities

  • Define scientific strategy for therapeutic programs and develop AI-driven discovery strategies
  • Guide computational protein design campaigns and interpret structural insights for optimization
  • Lead binder discovery and screening campaigns, prioritizing strategies and identifying hits
  • Design, produce, and characterize therapeutic proteins and antibodies using laboratory techniques
  • Mentor junior staff and oversee cross-functional program communication and CRO management

Requirements

  • Ph.D. in molecular biology, biochemistry, or related field
  • Deep expertise in protein engineering and antibody format development
  • Strong knowledge of developability metrics and biophysical characterization
  • Demonstrated ability to lead scientific strategy and mentor junior scientists
  • Experience designing and executing protein optimization campaigns
  • Proficiency with chromatographic and biophysical assay techniques
Vacancy posted 7 days ago
Similar jobs that could be interesting for youBased on the Principal Scientist, Protein Engineering in South San Francisco, CA vacancy
  • $164k - $205k

     ...Principal Scientist, Protein Engineering South San Francisco, California, United States 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... 
    Principal
    Flexible hours

    Xaira Therapeutics

    South San Francisco, CA
    2 days ago
  • $177k - $235k

     ...Position Description:We are seeking an innovative Senior Scientist / Principal Scientist to bridge the gap between traditional antibody...  ...for Principal Scientist) post-PhD experience in antibody/protein engineering within the biotech or biopharma industryDemonstrated ability... 
    Principal

    Calico Life Sciences

    South San Francisco, CA
    3 days ago
  • $141.5k - $262.9k

     ....The OpportunityGenentech’s Department of Antibody Engineering is seeking a visionary Principal Scientist to lead a high-impact laboratory team at the forefront...  .... In this role, you will pioneer breakthrough protein technologies that seamlessly bridge molecular developability... 
    Principal
    Full time
    Work at office
    Local area
    Relocation package

    Genentech

    South San Francisco, CA
    1 day ago
  • $146k - $171k

     ...a clinical-stage vaccine innovation company engineering high-fidelity vaccines to protect humankind...  ...seeking a curious and scientifically rigorous Scientist II to join the Upstream Process Development group within the Protein Development and CMC organization. The... 
    Suggested

    Vaxcyte

    San Carlos, CA
    3 days ago
  • $167.4k - $310.8k

     ...Intelligence (AI) to assist our scientists in both pRED and gRED to...  ...We are seeking a Senior or Principal Machine Learning Scientist to...  ...work at the intersection of engineering and research, designing and...  ...molecular modalities (e.g., protein sequences, chemical graphs,... 
    Principal
    Full time
    Local area
    Worldwide
    Relocation package

    Genentech

    South San Francisco, CA
    3 days ago
  • $150.7k - $279.9k

    The PositionThe Department of Protein Sciences at Genentech seeks an exceptional structural...  ...interactions. We collaborate with scientists throughout the Research and Drug Discovery...  ...discovery of therapeutics.The OpportunityAs a Principal Scientist in Structural Biology, you... 
    Principal
    Full time
    Work at office
    Local area
    Worldwide
    Relocation package

    Genentech

    South San Francisco, CA
    2 days ago
  • $143.2k - $266k

     ...Modalities and Technologies group in the Protein Sciences organization at Genentech is...  ...modalities that combine the engineering and analytical principles of multiple...  ...oligonucleotide experience to join our team as a Principal Scientist (Group Leader), and support our... 
    Principal
    Full time
    Local area
    Relocation package

    Genentech

    South San Francisco, CA
    22 hours ago
  • $144.9k - $269.1k

     ...Discovery team, apply advanced AI/ML technologies, including protein-ligand co-folding, generative and active learning models.Provide...  ...external stakeholders and project teams, including wet-lab scientists.Cross-Functional Collaboration: Work closely with Structural Biology... 
    Principal
    Full time
    Local area
    Relocation package

    Genentech

    South San Francisco, CA
    4 days ago
  • $167.4k - $310.8k

     ...Artificial Intelligence (AI) to assist our scientists in both pRED and gRED to deliver more...  ...learning machine learning models for protein and antibodies in zero-shot and few-shot...  ...(e.g. Chemistry, Physics, Chemical Engineering) or quantitative field (​e.g.​ Computer... 
    Full time
    Local area
    Worldwide
    Relocation package
    Shift work

    Genentech

    South San Francisco, CA
    3 days ago
  •  ...highly motivated and fast-moving [Senior] Scientist – Immunology , who will be responsible...  ...development of multifunctional fusion proteins. About us: Y-Trap is a...  ...tumor. Y-Trap has utilized its AI-driven engineering platform to develop a portfolio of... 
    Full time
    Contract work

    Y-Trap

    South San Francisco, CA
    5 days ago
  •  ...Tik Tok. Job Description Process Engineering, a part of AbbVie R&D’s Development...  ...plant engineers, drug product development scientists, program managers, and regulatory...  ...process development, and/or purification of proteins, such as preparatory chromatography and... 
    Principal
    Work experience placement

    AbbVie

    San Francisco, CA
    6 days ago
  •  ...highly motivated and fast-moving [Senior] Scientist – In Vivo , who will be responsible...  ...development of multifunctional fusion proteins. About us: Y-Trap is a startup in South...  .... Y-Trap has utilized its AI-driven engineering platform to develop a portfolio of multi... 
    Full time
    Contract work

    Y-Trap

    South San Francisco, CA
    5 days ago
  • $176.2k - $277.3k

     ...medicines. We are seeking an exceptional and experienced scientist in the role of Principal Scientist in the South San Francisco Discovery Biologics...  ...Skills: Ideal candidate will have experience in protein therapeutics beyond traditional mAbs including... 
    Principal
    Full time
    For contractors
    Local area
    Relocation
    Visa sponsorship
    Flexible hours
    Shift work

    Merck & Co.

    South San Francisco, CA
    10 days ago
  • $206.3k - $388k

    ABOUT THE ROLE We’re looking for a Principal ML Engineer to architect and scale the multimodal data processing pipelines and infrastructure behind Adobe Firefly’s multimodal foundation models (image, video, audio). In this role, you’ll sit at the intersection of data engineering... 
    Principal
    Full time
    Temporary work
    Local area
    Worldwide

    Adobe Systems

    San Francisco, CA
    22 hours ago
  • $173.1k - $321.5k

    The PositionWe advance science so that we all have more time with the people we love.The Senior Principal Scientist serves as the scientific leader for Bioanalytical Strategy in support of our Cell Therapy portfolio. In this role, the individual will define and drive the... 
    Principal
    Full time
    Local area
    Relocation package

    Genentech

    South San Francisco, CA
    1 day ago
  • $141.5k - $262.9k

     ...Methodologies (NAMs).The Opportunity:The responsibilities of this Senior Scientist position will :1. Portfolio Strategy & Project Team...  ...in pharmaceutical, biotechnology, or CRO environments.Senior Principal Scientist: Ph.D. with >5+ years of industry experience demonstrating... 
    Principal
    Full time
    Local area
    Relocation package

    Genentech

    South San Francisco, CA
    2 days ago
  • $147.8k - $274.4k

     ...power of data and Artificial Intelligence (AI) to assist our scientists in both pRED and gRED to deliver more innovative and transformative...  ...are seeking a highly motivated and collaborative Senior/Principal Machine Learning Scientist to join the Perturbation Biology group... 
    Principal
    Full time
    Local area
    Worldwide

    Genentech

    South San Francisco, CA
    22 hours ago
  • $144.9k - $269.1k

     ...power of data and Artificial Intelligence (AI) to assist our scientists in delivering more innovative and transformative medicines for...  ...postdoctoral research or 3 years equivalent experience after PhD (Principal Scientist). The ideal candidate will have deep experience in... 
    Principal
    Full time
    Local area
    Worldwide
    Relocation package
    3 days per week

    Genentech

    South San Francisco, CA
    4 days ago
  • $197k - $235k

     ...create an inspiring and exciting place to catalyze and enable medical breakthroughs.Position Description:Calico is seeking a Principal Scientist, Drug Metabolism and Pharmacokinetics to join our Drug Discovery team. This position is a unique opportunity to shape the DMPK... 
    Principal

    Calico Life Sciences

    South San Francisco, CA
    2 days ago
  • $201.3k - $373.8k

     ...power of data and Artificial Intelligence (AI) to assist our scientists in both pRED and gRED to deliver more innovative and transformative...  ...for how ML shapes gRED's approach to antibody discovery and engineering and align with your pRED counterpartNavigate complex... 
    Principal
    Full time
    Local area
    Worldwide
    Shift work

    Genentech

    South San Francisco, CA
    1 day ago
  • $201.3k - $373.8k

     ...strategic, unified group whose goal is to harness the transformative power of data and Artificial Intelligence (AI) to assist our scientists in both pRED and gRED to deliver more innovative and transformative medicines for patients worldwide. ​The OpportunityFrontier... 
    Principal
    Full time
    Work experience placement
    Local area
    Worldwide
    Relocation package

    Genentech

    South San Francisco, CA
    4 days ago
  • $143.2k - $265.9k

    The PositionThe OpportunitySE7As a Principal Scientist in Small Molecule Biomarkers (Metabolomics & Lipidomics) within our Drug Metabolism and Pharmacokinetics (DMPK) team, you will play a key role in advancing safe and effective therapeutics for patients. Joining Genentech... 
    Principal
    Full time
    Local area
    Relocation package

    Genentech

    South San Francisco, CA
    1 day ago
  • $141.5k - $262.9k

     ...creativity while boldly pursuing answers to the world’s most complex health challenges and transforming society.The OpportunityAs a Principal Scientist in Translational Medicine Oncology, you will serve as a vital scientific anchor bridging discovery research and clinical... 
    Principal
    Full time
    Local area
    Relocation package
    3 days per week

    Genentech

    South San Francisco, CA
    22 hours ago
  • $197k - $230k

    Who We are:Calico (Calico Life Sciences LLC) is an Alphabet-founded research and development company whose mission is to harness advanced technologies and model systems to increase our understanding of the biology that controls human aging. Calico will use that knowledge...
    Principal
    Contract work
    Shift work

    Calico Life Sciences

    South San Francisco, CA
    3 days ago
  • $200k - $240k

     ...are hiring new team members who believe in the potential of engineered cells as medicines, who are passionate about delivering the...  ...and who lead with the desire to work on novel ideas. As a Principal Scientist, Potency, you will report to the Sr. Director, Head of Molecular... 
    Principal
    Temporary work
    Work at office
    Immediate start
    Weekend work

    Sana Biotechnology

    South San Francisco, CA
    1 day ago
  • $168.6k - $313k

     ...s what makes us Genentech. The Opportunity We are seeking a highly motivated and experienced Medicinal Chemist (Senior Principal Scientist) to join our innovative research and development team. This is a technical leadership position within our Peptide Therapeutics... 
    Principal
    Local area
    Relocation package

    Genentech

    South San Francisco, CA
    3 days ago
  • $143.2k - $265.9k

     ...Oncology at Genentech is excited to announce an opportunity for a Principal Scientist, Lab Head, to join the Synthetic Immunity division...  ...PreferredExperience working with human and/or mouse T cells.Experience with engineering human T cells.Experience with syngeneic and/or xenograft in... 
    Principal
    Full time
    Local area
    Relocation package

    Genentech

    South San Francisco, CA
    3 days ago
  • $165k - $193k

     ...clinical-stage vaccine innovation company engineering high-fidelity vaccines to protect...  ...Vaxcyte is seeking an accomplished Senior Scientist, Immunoassay Critical Reagents and Reference...  ...conjugated vaccines, polysaccharide-protein conjugates, multivalent vaccines, or other... 
    Contract work

    Vaxcyte

    San Carlos, CA
    2 days ago
  • $173.1k - $321.5k

     ...scientific leadership across drug development, from early research through clinical development and marketed products. This Senior Principal Scientist role is intended for an experienced portfolio toxicologist who can immediately assume independent toxicology and safety... 
    Principal
    Full time
    Local area
    Immediate start
    Relocation package
    3 days per week

    Genentech

    South San Francisco, CA
    2 days ago
  • $143.2k - $265.9k

     ...The Position The Opportunity We are seeking a creative and highly motivated Principal Scientist, Medicinal Chemist to join our R&D team. This is a primarily lab-based, technical leadership position within the Peptide Therapeutics department. In this lab-based leadership... 
    Principal
    Local area
    Relocation package

    Genentech

    South San Francisco, CA
    22 hours ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Principal Scientist, Protein Engineering. Be the first to apply!