{"id":3172013,"url":"https://alion.io/job/retro-biosciences-histotechnologist","title":"Histotechnologist","company":{"id":685643,"name":"Retro Biosciences","domain":"retro.bio","url":"https://alion.io/company/retro-6","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Lever","truth_index":{"grade":"B","score":75,"open_postings":3,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-29T05:49:05Z"}},"role":"Field & Service","role_family":"Field & Service","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Redwood City, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":100000,"max":115000,"currency":"USD","period":"year","gross":null,"usd_annual":115000},"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Immunohistochemistry","optional":false},{"name":"GLP","optional":true}],"status":"live","first_seen_at":"2026-10-23T18:39:45Z","employer_posted_date":"2026-10-23","last_verified_at":"2026-10-29T13:57:52Z","board_verified":true,"closed_at":null,"days_open":5,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":5},"description":"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.\nWe’re building a mission-driven team of accomplished and kind individuals who embrace our startup culture of rapid iteration, transparency, and versatility.\nWe are hiring a Histotechnologist to join Retro’s growing histology core, supporting multiple scientific programs - including our Microglia, Tissue Reprogramming, and Autophagy teams - performing FFPE and cryo-sectioning workflows from embedding through staining and imaging. 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.\nAbout you:\nYou’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.\nWhat you'll do in this role:\nSupport day-to-day histology operations by independently executing workflows - managing work prioritization, quality control, and turnaround timelines\n\nPartner with the histology lead and scientific teams to triage and schedule work across programs, communicating realistic timelines, flagging conflicts early, tracking sample throughput, and maintaining organized records\n\nPerform tissue and organoid embedding, paraffin and frozen sectioning, vibratome sectioning, and slide preparation for multiple scientific teams\n\nConduct IHC and IF staining, including protocol optimization and new antibody validation\n\nPerform H&E staining and special stains as needed\n\nSupport the development and documentation of SOPs for histology workflows, continuing to build the institutional knowledge for Retro’s histology practice\n\nOperate and maintain standard histology equipment - embedding center, microtome, cryostat, vibratome, water baths, fume hood, and associated instruments\n\nCoordinate with CROs for tissue processing and ensure quality of incoming processed tissues\n\nDecalcify tissues as needed for bone or calcified samples\n\nAssist with imaging of stained sections or coordinate with instrument engineers for imaging support\n\nManage histology supplies inventory, ordering, and lab organization\n\nProvide guidance to scientists on tissue collection, fixation, and handling best practices to ensure downstream quality\n\nYou might thrive in this role if you:\nHave 5+ years of hands-on histology experience with FFPE and fresh-frozen workflows - embedding, microtomy, and staining\n\nAre proficient with both paraffin sectioning and cryosectioning\n\nHave experience with IHC and/or IF staining, including antibody titration and protocol troubleshooting\n\nHave demonstrated ability to work independently and manage multiple concurrent requests\n\nAre naturally organized and detail-oriented - you keep clean records and a clean lab\n\nCommunicate clearly and effectively - whether discussing tissue orientation with a scientist or coordinating things\n\nAre hands-on and proactive - you don’t wait to be told when something needs to be done\n\nBonus if you have experience with:\nMultiplex staining techniques\n\nStart-up experience or more resource-constrained environments\n\nGLP or regulated laboratory environments","description_format":"text","description_chars":3685,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Drug Discovery"],"lifecycle":[{"event":"open","at":"2026-10-23T18:51:14Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"H-1B filings in 12 months: 3","filings_12m":3,"filings_prev_12m":2,"green_card_filings_12m":0,"median_offered_wage_usd":187500,"route":null,"cap_exempt":false,"checked_at":"2026-10-15T11:24:14+00:00","sources":["US Department of Labor: LCA disclosure data (H-1B, H-1B1, E-3)"],"filings_for_role_12m":0}],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":5,"expected_fill_days":36,"reasons":["conf:0","win:early"],"computed_at":"2026-10-29T05:49:05Z"},"pay":{"stated_usd_annual":115000,"is_top_pay":true},"html_url":"https://alion.io/job/retro-biosciences-histotechnologist","json_url":"https://alion.io/job/retro-biosciences-histotechnologist.json","meta":{"generated_at":"2026-10-29T14:48:25Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":22288,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-30T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":685643},"rest":"https://alion.io/mcp/rest/get_company?id=685643"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fretro-biosciences-histotechnologist"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fretro-biosciences-histotechnologist"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fretro-biosciences-histotechnologist"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/retro-biosciences-histotechnologist\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fretro-biosciences-histotechnologist"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3172013}},{"tool":"search_jobs","arguments":{"company":"retro.bio","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3172013},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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