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Retro Biosciences

Develops aging-focused therapeutics across programs.

Histotechnologist

Translational Research & Bench BiologyConfirmed live in the last 24 hours
Full-timeRedwood City, CA, USA$100k - $115k /yrIn-person

About the Job

Requirements

  • Have 5 or more years of hands-on histology experience with FFPE and fresh-frozen workflows, including embedding, microtomy, and staining.
  • Be proficient with paraffin sectioning and cryosectioning.
  • Have experience with immunohistochemistry and/or immunofluorescence staining, including antibody titration and protocol troubleshooting.
  • Be able to work independently and manage multiple concurrent requests.
  • Maintain organized records and a clean laboratory.
  • Communicate clearly when discussing tissue orientation with scientists or coordinating work.
  • Take a hands-on and proactive approach to laboratory work.

Responsibilities

  • Support daily histology operations by independently executing workflows, managing work prioritization, quality control, and turnaround timelines.
  • Partner with the histology lead and scientific teams to triage and schedule work across programs, communicate realistic timelines, flag conflicts early, track sample throughput, and maintain organized records.
  • Perform tissue and organoid embedding, paraffin and frozen sectioning, vibratome sectioning, and slide preparation for multiple scientific teams.
  • Conduct immunohistochemistry and immunofluorescence staining, including protocol optimization and new antibody validation.
  • Perform hematoxylin and eosin staining and special stains as needed.
  • Support development and documentation of standard operating procedures for histology workflows and build institutional knowledge for the histology practice.
  • Operate and maintain standard histology equipment, including an embedding center, microtome, cryostat, vibratome, water baths, fume hood, and associated instruments.
  • Coordinate with contract research organizations for tissue processing and ensure the quality of incoming processed tissues.
  • Decalcify tissues as needed for bone or calcified samples.
  • Assist with imaging stained sections or coordinate with instrument engineers for imaging support.
  • Manage histology supplies inventory, ordering, and laboratory organization.
  • Guide scientists on tissue collection, fixation, and handling best practices to ensure downstream quality.

Desired Qualifications

  • Experience with multiplex staining techniques.
  • Experience in a startup or more resource-constrained environment.
  • Experience in good laboratory practice or regulated laboratory environments.

About the Company

Retro Biosciences

Develops aging-focused therapeutics across programs.

Retro Biosciences develops therapeutics aimed at extending healthy human lifespan by addressing the cellular drivers of aging. The company runs three main programs—cellular reprogramming, plasma-inspired therapeutics, and autophagy—supported by single-cell multi-omics, computational biology, and lab automation to build a pipeline that targets aging mechanisms to prevent multiple age-related diseases. Revenue comes from developing and commercializing these candidates once they prove concept through research and clinical development. The company differentiates itself by focusing on root causes of aging rather than single-disease drugs, using diverse, technology-enabled programs with a balanced pipeline, and leveraging advanced analytics and automation to accelerate discovery. The goal is to extend healthy years of life by ten years and reduce the healthcare burden from aging-related diseases.

Company size
51-200
Company stage
Series A
Total funding
$1.2B
Headquarters
Redwood City, CA
Founded
2021

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