Full-Time

Scientist / Senior Scientist

Structural Cell Biology

Posted on 9/9/2026

Altos Labs

Altos Labs

501-1,000 employees

Biotech startup advancing cellular rejuvenation therapies

Compensation Overview

$148.7k - $223.3k/yr

San Francisco, CA, USA

In Person

PhD

Category
Biology & Biotech (1)
Required Skills
Python
R
MATLAB
Cell Biology
Biochemistry
Computer Vision

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Requirements
  • A PhD in a related field, such as Cell Biology, Neuroscience, or Genetics.
  • A thorough understanding of the principles of light microscopy image visualization, analysis, and processing.
  • A demonstrable understanding of biochemistry, including the use of electron microscopy for structural biochemistry.
  • Excellent communication skills and the ability to collaborate within a dynamic team.
Responsibilities
  • Provide advanced cell culture and genetic manipulation of induced pluripotent stem cell-derived central nervous system cell types.
  • Independently design and implement all phases of light microscopy experimentation, including experimental design, microscope operation, image capture, and quantitative image analysis.
  • Engage with cross-Altos research labs to bridge in vitro with in vivo models and suggest complementary biochemical and imaging approaches.
  • Assist scientists in the Frost group and beyond with microscope-image analysis using tools such as Zen, Elements, Arivis, Napari, Fiji, or other software, and manage image-analysis collaborations with the Computer Vision team when appropriate.
  • Prepare samples for cryo-electron microscopy, including single-particle and tomographic imaging.
Desired Qualifications
  • Preparation and culturing of induced pluripotent stem cell-derived human central nervous system cell types.
  • Operation of light microscopes for fixed and live imaging, including confocal and structured illumination microscopes.
  • Practical experience managing terabyte-size microscopy datasets.
  • Literacy in Fiji/ImageJ, Arivis, Relion, cryoSPARC, MATLAB, R, or Python.
  • Practical experience with cellular image segmentation and quantitation.

Altos Labs focuses on cell rejuvenation research to restore cellular health and resilience, with the aim of reversing diseases, injuries, and disabilities by programming cells to resist stressors that cause illness. It advances biotech R&D in cellular rejuvenation, producing treatments that can be commercialized for healthcare providers or patients and likely collaborates with research institutions and pharma partners. Unlike purely diagnostic firms, Altos Labs centers on developing breakthrough cellular therapies and regenerative strategies grounded in research, seeking to improve long-term health outcomes. Its goal is to translate cellular rejuvenation science into practical treatments that extend healthspan and reverse disease processes.

Company Size

501-1,000

Company Stage

Early VC

Total Funding

$3.3B

Headquarters

Los Altos, California

Founded

2021

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Simplify Jobs

Simplify's Take

What believers are saying

  • August 2026 job postings show continued hiring across drug discovery, AI, and development.
  • Altos appointed Joan Mannick in 2025 to build clinical programs and product development.
  • The company still publicly tracks reverse-disease medicine, preserving a huge long-term upside.

What critics are saying

  • Altos has no registered human partial-reprogramming trials as of May 2026.
  • Recent reports cite departures of Steve Horvath and Peter Walter, signaling leadership churn.
  • If clinical translation stalls, Altos remains a very expensive academic lab with no product.

What makes Altos Labs unique

  • Altos Labs has $3 billion backing and recruits Nobel-caliber scientists.
  • Its 2026 team still spans Bay Area, San Diego, Cambridge, and Japan collaborations.
  • Joan Mannick's 2025 CMO role signals a rare push from discovery toward medicine.

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Benefits

Hybrid Work Options

Growth & Insights and Company News

Headcount

6 month growth

0%

1 year growth

1%

2 year growth

2%
VivaTech
Jul 30th, 2026
Can we slow aging? What VivaTech 2026 revealed about the future of Longevity.

Can VivaTech slow aging? What VivaTech 2026 revealed about the future of Longevity. Article by Collie Mall Copywriter @VivaTech Posted at: 07.30.2026 What if medicine could target aging itself? At VivaTech 2026, Dr. Joan Mannick of Altos Labs shared how breakthroughs in longevity research are bringing that possibility closer to reality. What if medicine could target aging itself, rather than simply treating the diseases that come with it? At VivaTech 2026, Dr. Joan Mannick, Chief Medical Officer and Head of Product Development at Altos Labs, explored that question during Longevity Unlocked: The Science Extending Human Healthspan. Her message was clear: the future of longevity isn't about living forever. It's about extending the years VivaTech spend healthy. "Most of us think longevity isn't about just living longer, it's about living healthier longer." She believes that future may arrive sooner than many expect. "In the next 10 years, we'll have our first drug approved targeting aging biology." Why scientists are targeting the biology of aging. For Mannick, aging is not simply the passage of time. It's the gradual loss of the body's ability to protect and repair itself. "What happens as we get older is we lose that buffer." Longevity research is focused on restoring that resilience, helping people stay healthier well into old age rather than treating one chronic disease after another. One of the most promising areas of research is cellular reprogramming. Mannick pointed to the Yamanaka factors, four proteins capable of resetting a cell's biological age, which are now being investigated in therapies designed to regenerate damaged tissue. Life Biosciences, for example, has launched clinical trials using this approach to restore vision in glaucoma patients. Artificial intelligence is accelerating that work by modelling virtual cells, identifying drug targets, and helping researchers understand one of biology's most complex systems. A review published in Nature concludes that targeting the biological mechanisms of aging could transform medicine by delaying multiple age-related diseases simultaneously, rather than treating each one independently. Despite the excitement surrounding the field, Mannick was equally clear about what works today. "Right now there's nothing that's been proven to extend lifespan or healthspan except exercise, reasonable diet, sleep." She also noted that she does not take longevity supplements herself, stressing the importance of evidence over hype. Longevity may be attracting unprecedented investment, but Mannick believes scientific rigor remains essential. She argued that progress will require patient capital, experienced teams, and a willingness to accept failure as part of discovery. "You can't be scared when you go into this field." That same philosophy shapes her confidence in regulation. Placebo-controlled clinical trials, she argued, remain the best way to understand whether new therapies truly work, while many supplements and peptides sold today have little evidence behind them. Why healthy aging matters. For Mannick, longevity is as much an economic challenge as a scientific one. As populations age, chronic diseases are placing increasing pressure on healthcare systems around the world. Alzheimer's disease, in particular, illustrates the scale of that challenge. "It's going to be over a trillion dollars in the next decade of costs." She believes therapies that target aging biology could transform healthcare in much the same way new medicines have reshaped the treatment of obesity and diabetes. "It will have an enormous impact like the GLP-1 ones. Enormous." Despite her optimism, Mannick remains careful not to overpromise. The field was inspired, she recalled, by Cynthia Kenyon's groundbreaking discovery that changing a single gene could double a worm's lifespan. Decades later, longevity science has matured into one of biotechnology's most ambitious frontiers, but its success will depend on rigorous evidence rather than bold claims. Her focus remains on delaying disease, not chasing immortality. "By targeting aging biology, we'll get one big chronic disease delayed that we couldn't delay before in a new way." Asked which disease she believed would be first, she smiled. "I'm going to take the fifth on that one." Want to explore the future of healthy aging? Watch the full replay of Longevity Unlocked: The Science Extending Human Healthspan, then join VivaTech at VivaTech 2027 as the world's leading scientists, entrepreneurs, and innovators continue exploring the breakthroughs shaping the future of health.

Longevity.Technology
Aug 5th, 2025
Is Altos Labs gearing up for clinical trials?

Longevity biotech giant Altos Labs has appointed Dr Joan Mannick as its Chief Medical Officer and head of product development, signaling a shift toward advancing clinical programs based on the company's cellular rejuvenation technology.

The Business Journals
May 21st, 2025
Jeff Bezos-backed, lifespan-focused Altos Labs buys small biotech with Stanford roots

Altos Labs, backed by $3 billion from Jeff Bezos and others, has snagged a small Peninsula company focused on one approach to stopping aging

The Spirits Business
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In London, Altos recently launched its inaugural Margarita Masters competition for bartenders, with the hope of taking it nationwide in the future.

Startup Italia
Nov 17th, 2023
«Ad Altos Labs Vogliamo Creare Una Nuova Medicina». Simone Bianco E L’Avventura Nella Venture Californiana

«Per uno scienziato Elon Musk ha senz’altro meno appeal di un Premio Nobel». Se poi i Nobel sono quattro, tutti seduti nel board of directors della startup per cui lavori, potremmo dire non esserci partita. Tra questi, ad esempio, Jennifer Doudna, che ha vinto grazie al lavoro sull’editing genetico Crispr nel 2020. Simone Bianco, employee numero 27 di Altos Labs con sede a San Francisco, è Principal Investigator e Director of Computational Biology in quella che lui preferisce definire una venture, non una startup. Nel corso dell’intervista gli abbiamo chiesto di Musk e dei suoi piani per salvare l’umanità, anche con Neuralink, ma la discussione ha rapidamente virato verso altre figure, più specializzate nella materia in questione. Altos Labs, dunque