Senior Cytogenetics Technologist - Genomic Stability

Retro
Redwood City, CA
On-site

Who this role is best for

Geared toward hands-on cytogenetics professionals comfortable with setting up and validating new workflows, with a focus on genomic stability and cell culture in a collaborative, startup environment in Redwood City, CA.

Best fit for

  • Individuals who can manage multiple workflows and maintain detailed documentation
    — “highly organized and able to run multiple clone/sample workflows in parallel”
  • People with experience in high-magnification microscopy and image analysis tools
    — “comfortable with high-magnification microscopy”

Things to consider

  • Weekend work is expected due to team rotation requirements
    — “available for weekend work as part of a team rotation”
  • This role supports research and GMP workflows, requiring adaptability to different lab standards
    — “Execute the full cytogenetics workflow (initially in research/PD and then in our GMP suite)”

How to stand out

  • Highlight experience with assay setup and validation in your resume and interviews
    — “comfortable bringing an established cytogenetics workflow into a new laboratory environment”
  • Emphasize your ability to document and troubleshoot workflows effectively
    — “documenting it clearly, and troubleshooting issues as they arise”
  • Showcase your hands-on cell culture skills, particularly with iPSC lines
    — “Culture, passage, expand, bank, and prepare iPSC samples in preparation for karyotyping”
  • Demonstrate familiarity with imaging software like MetaSystems or Cytovision
    — “experience with imaging software such as MetaSystems / Ikaros or Cytovision”
Pace · SteadyCollaboration · MediumAutonomy · MediumDecision Impact · Team

Derived from job-description analysis by Serendipath's career intelligence engine.

What success looks like

  • established and validated G-banding and karyotyping workflow
  • documented operating and quality-control criteria
  • maintained organized records and imaging files
Typical background
several years of hands-on G-banding and karyotype analysis experienceexperience with imaging software

Skills & requirements

Required

CytogeneticsG-bandingKaryotypingMammalian Cell CultureHigh-magnification MicroscopySOP Development

Preferred

Cg(ascp) CertificationMetasystems / IkarosCytovision

Stack & domain

G-bandingKaryotypingIpsc CulturesImaging Software (metasystems / Ikaros Or Cytovision)Mammalian Cell CultureHigh-magnification MicroscopyOrganizing RecordsSops DevelopmentCollaborativeProactiveFlexibleHighly OrganizedCg(ascp) Certification In CytogeneticsCytogeneticsGenomic StabilityCell ProductsAutophagyCell Reprogramming

About the role

Original posting from Retro via Lever

Retro develops therapies for diseases driven by the biology of aging. We focus on cellular reprogramming and autophagy to rejuvenate cell and tissue function with the ultimate aim of adding 10 years to healthy human lifespan.

We're building a mission-driven team of accomplished and kind individuals who embrace our startup culture of rapid iteration, transparency, and versatility.

We are hiring a new member of the HSC team who will help bring G-banding and karyotyping in-house. You'll stand up this capability and enable our team to get faster, more cost-effective reads on the genomic stability of our cell products. You will be the primary internal owner of this capability and should be comfortable establishing and validating the workflow with limited day-to-day cytogenetics supervision. Your primary focus will be establishing and running the cytogenetics assay, but you'll also help maintain our iPSC cultures — the starting material the assay depends on.

About you::

You're a careful, hands-on technologist who takes pride in high-quality chromosome preparations and confident karyotype calls. You are comfortable bringing an established cytogenetics workflow into a new laboratory environment—setting up the process, confirming that it performs consistently, documenting it clearly, and troubleshooting issues as they arise. You're at home at the microscope and equally happy in a tissue-culture hood keeping iPSC lines healthy. You're collaborative, easy-going, proactive in how you communicate, and flexible about scheduling when the culture rotation calls for it.

What you'll do in this role::

-

Transfer in, implement, and document an established G-banding and karyotyping workflow in-house for HSC program cell products.

-

Execute the full cytogenetics workflow (initially in research/PD and then in our GMP suite): metaphase arrest, cell harvest, hypotonic treatment, slide preparation, fixation, Giemsa staining, metaphase imaging, and software-assisted karyotype analysis.

-

Compare initial in-house results against historical data and document appropriate operating and quality-control criteria.

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Analyze metaphase spreads to identify numerical and structural chromosomal abnormalities, and document findings clearly.

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Support genomic-stability assessment of human primary cells 

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Culture, passage, expand, bank, and prepare iPSC samples in preparation for karyotyping 

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Track clone-level genomic stability, passage number, culture conditions, and QC status across lines.

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Coordinate with CROs shipments of samples for genomic instability analysis

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Maintain organized records, sample tracking, and imaging files, and develop SOPs for the workflows you build.

You might thrive in this role if you::

-

Have several years of hands-on G-banding and karyotype analysis experience, with demonstrated ability to make independent chromosome assessments and troubleshoot chromosome preparation and image quality.

-

Have experience with imaging software such as MetaSystems / Ikaros or Cytovision.

-

Have hands-on mammalian cell culture experience with strong sterile technique.

-

Are comfortable with high-magnification microscopy.

-

Are highly organized and able to run multiple clone/sample workflows in parallel.

-

Are available for weekend work as part of a team rotation.

Bonus if you::

-

Have experience standing up or validating a new assay in-house.

-

Hold current CG(ASCP) certification in cytogenetics.

-

Hold a Bachelor's or Master's degree in cell biology, molecular biology, cytogenetics, genetics, stem cell biology, biomedical sciences, or a related field.

-

Have hands-on experience maintaining iPSC cultures.

Compensation:

At Retro, we don't use titles. New hires join as a "Member of X Team." The expectations for this role are generally aligned to the level of Cytogenetics Technologist.

Total compensation also includes generous equity and benefits including:

Medical, dental, and vision insurance for you and your family

401(k) plan with 4% matching

Unlimited time off and 10 company holidays per year

Annual learning & development stipend

Free lunch and snacks

We take pride in cultivating an environment that fosters collaboration, open communication, and authenticity. We are an equal opportunity employer; we do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

Source: Retro careers (Lever)