Retro Co., Ltd Logo

Retro Co., Ltd

Lead Histotechnologist

Reposted 22 Days Ago
Be an Early Applicant
In-Office
Redwood City, CA, USA
110K-135K Annually
Mid level
In-Office
Redwood City, CA, USA
110K-135K Annually
Mid level
Build and run the company's in-house histology capability: perform embedding, paraffin and frozen sectioning, vibratome work, IHC/IF and H&E staining, imaging support, SOP development, equipment maintenance, supply management, and coordinate with CROs while managing workload, QC, and documentation.
The summary above was generated by AI

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 Lead Histotechnologist to build and run Retro’s first in-house histology capability. You’ll be the primary histologist supporting multiple scientific programs - including our Microglia, Tissue Reprogramming, and Autophagy teams - performing FFPE and cryo-sectioning workflows from embedding through staining and imaging. Tissue processing will continue to be outsourced to a CRO; everything else happens in-house with you. You will work in a dedicated histology lab space and be a part of the Scientific Operations team - a close-knit group of dedicated, resourceful humans, handling all things labs, facilities, and logistics.

About you:

    You’re a skilled bench histologist who takes pride in producing high-quality sections and stains. You’re comfortable working independently, juggling requests from multiple teams, and building workflows from scratch. You’re organized, detail-oriented, and proactive - the kind of person who keeps a lab running smoothly without being asked. You communicate clearly with scientists, understand what they need from their tissue, and can advise on best practices from fixation through imaging.

What you’ll do in this role:

    • Own the day-to-day operation of Retro's histology workflows — managing work prioritization, quality control, and turnaround timelines 

    • Independently triage and schedule work across programs, communicating realistic timelines, flagging conflicts early, tracking sample throughput, and maintaining organized records

    • Perform tissue and organoid embedding, paraffin and frozen sectioning, vibratome sectioning, and slide preparation for multiple scientific teams

    • Conduct IHC and IF staining, including protocol optimization and new antibody validation

    • Perform H&E staining and special stains as needed

    • Develop and document SOPs for all histology workflows, building up the institutional knowledge for Retro’s histology practice 

    • Operate and maintain standard histology equipment - embedding center, microtome, cryostat, vibratome, water baths, fume hood, and associated instruments

    • Coordinate with CROs for tissue processing and ensure quality of incoming processed tissues

    • Decalcify tissues as needed for bone or calcified samples

    • Assist with imaging of stained sections or coordinate with instrument engineers for imaging support

    • Manage histology supplies inventory, ordering, and lab organization

    • Provide guidance to scientists on tissue collection, fixation, and handling best practices to ensure downstream quality

You might thrive in this role if you:

    • Have 5+ years of hands-on histology experience with FFPE workflows - embedding, microtomy, and staining

    • Are proficient with both paraffin sectioning, cryosectioning, and vibrating sectioning

    • Have experience with IHC and/or IF staining, including antibody titration and protocol troubleshooting

    • Have demonstrated ability to work independently and manage multiple concurrent requests — you've been the go-to histologist that teams rely on

    • Are naturally organized and detail-oriented - you keep clean records and a clean lab

    • Communicate clearly and effectively - whether discussing tissue orientation with a scientist or coordinating things

    • Are hands-on and proactive - you don’t wait to be told when something needs to be done

Bonus if you have experience with:

    • Biotech, pharmaceutical, or academic research histology core environments

    • Image analysis or digital pathology tools

    • Training others on histology techniques

    • GLP or regulated laboratory environments

We take pride in cultivating an environment that fosters collaboration, open communication, and authenticity. We believe that great results are best delivered by a highly creative team working in concert. 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. We are diverse in background and singular in mission.

Similar Jobs

3 Minutes Ago
Hybrid
141K-176K Annually
Senior level
141K-176K Annually
Senior level
Artificial Intelligence • Hardware • Software • Nanotechnology • Semiconductor • Quantum Computing • Defense
Model and simulate semiconductor and quantum nanodevices using commercial and proprietary TCAD and multiphysics tools. Analyze semiclassical and quantum transport, electrostatics, thermal and stress responses, and collaborate with fabrication and test teams to interpret data, optimize performance, and present technical results.
Top Skills: C++ComsolHigh-Performance Computing (Hpc)PythonSentaurus DeviceSentaurus ProcessTcad
5 Minutes Ago
Hybrid
142K-204K Annually
Senior level
142K-204K Annually
Senior level
Aerospace • Artificial Intelligence • Cloud • Machine Learning • Software • Cybersecurity • Defense
Lead technical execution and coordination of complex R&D projects from planning through delivery. Serve as technical lead, manage scope, schedule, cost, and risk, coordinate multidisciplinary teams, drive design reviews and problem solving, support proposals and technology roadmaps, and ensure deliverables meet quality, regulatory, and contractual requirements.
Top Skills: Additive ManufacturingCastings
5 Minutes Ago
Hybrid
142K-204K Annually
Senior level
142K-204K Annually
Senior level
Aerospace • Artificial Intelligence • Cloud • Machine Learning • Software • Cybersecurity • Defense
Lead technical execution of R&D projects from planning through delivery. Develop technical execution plans, coordinate multidisciplinary teams, manage scope/schedule/budget/risk, drive design reviews and problem solving, support proposals and customer interactions, and ensure engineering deliverables meet quality, regulatory, and contractual requirements.

What you need to know about the San Francisco Tech Scene

San Francisco and the surrounding Bay Area attracts more startup funding than any other region in the world. Home to Stanford University and UC Berkeley, leading VC firms and several of the world’s most valuable companies, the Bay Area is the place to go for anyone looking to make it big in the tech industry. That said, San Francisco has a lot to offer beyond technology thanks to a thriving art and music scene, excellent food and a short drive to several of the country’s most beautiful recreational areas.

Key Facts About San Francisco Tech

  • Number of Tech Workers: 365,500; 13.9% of overall workforce (2024 CompTIA survey)
  • Major Tech Employers: Google, Apple, Salesforce, Meta
  • Key Industries: Artificial intelligence, cloud computing, fintech, consumer technology, software
  • Funding Landscape: $50.5 billion in venture capital funding in 2024 (Pitchbook)
  • Notable Investors: Sequoia Capital, Andreessen Horowitz, Bessemer Venture Partners, Greylock Partners, Khosla Ventures, Kleiner Perkins
  • Research Centers and Universities: Stanford University; University of California, Berkeley; University of San Francisco; Santa Clara University; Ames Research Center; Center for AI Safety; California Institute for Regenerative Medicine

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account