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Stealth Biotech Jobs (NOW HIRING)

C10 Labs

$100K - $136K/yr

About Noara Therapeutics Noara Therapeutics is an early-stage, stealth biotechnology company developing next-generation RNA-LNP-based cell therapies for the treatment of autoimmune diseases, cancer ...

Output Biosciences

AI Technical Recruiter

New York, NY · Remote

  • Medical

  • Dental

  • Vision

Output is currently in stealth, operated by a team of repeat founders and biotech veterans with multiple exits in AI x Bio, and backed by top-tier VCs including Y Combinator. You will build Output ...

Output Biosciences

AI Technical Recruiter

New York, NY · On-site

  • Medical

  • Dental

  • Vision

Output is currently in stealth, operated by a team of repeat founders and biotech veterans with multiple exits in AI x Bio, and backed by top-tier VCs including Y Combinator. You will build Output ...

Output Biosciences

AI Technical Recruiter

San Francisco, CA · On-site

  • Medical

  • Dental

  • Vision

Output is currently in stealth, operated by a team of repeat founders and biotech veterans with multiple exits in AI x Bio, and backed by top-tier VCs including Y Combinator. You will build Output ...

Arlyn AI

Principal / Senior Data Scientist

Manhattan, NY · On-site

$175 - $255/hr

  • PTO

... growing stealth AI startup expanding patient access to life-changing medicines while reducing ... You'll work at the intersection of AI, data science, and healthcare, helping biotech and pharma ...

Arlyn AI

Principal / Senior Data Scientist

New York, NY · Remote

$175K - $255K/yr

  • PTO

... growing stealth AI startup expanding patient access to life-changing medicines while reducing ... You'll work at the intersection of AI, data science, and healthcare, helping biotech and pharma ...

Orchestra Bio, Inc

Senior Platform Engineer

San Francisco, CA · On-site

$123K - $169K/yr

Founded by early Benchling leaders, we just emerged from stealth with $20M in funding from 8VC, Andreessen Horowitz, Insight Partners, Definition, and Haystack to transform how biotech companies ...

Arlyn AI

Chief of Staff

New York, NY · Remote

$155K - $235K/yr

  • PTO

... growing stealth AI agent startup on a mission to expand patient access to life-changing medicines while cutting commercial research costs for biotech and pharma companies. Chief of Staff We're ...

Namely

Head of Discovery

Manhattan, NY · On-site

$100 - $150/hr

  • Medical

  • Dental

  • Vision

Output is currently in stealth, operated by a team of repeat founders and biotech veterans with multiple exits in AI × Bio, backed by top-tier VCs including Y Combinator. You are a drug hunter. You ...

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Stealth Biotech information

What are the unique challenges of working at a stealth biotech company?

Working at a Stealth Biotech company often involves operating in a highly confidential environment where active projects and discoveries are not publicly disclosed until specific milestones are achieved. Team members need to balance rigorous scientific work with strict information security protocols, which can add complexity to daily operations. You may encounter rapidly changing priorities and the need to pivot your focus as new data emerges or company strategies shift. Collaboration with a small, skilled team is typical, allowing for significant hands-on experience, but also requires flexibility, resourcefulness, and strong trust among colleagues.

What are the key skills and qualifications needed to thrive in the stealth biotech position, and why are they important?

To thrive in a Stealth Biotech role, candidates typically need a strong background in life sciences or biotechnology, advanced research skills, and usually a graduate-level degree such as a PhD or MS. Familiarity with specialized laboratory equipment, data analysis software, and adherence to regulatory compliance standards like GLP or GMP is often required. Excellent collaboration, adaptability, and the ability to work discreetly are critical soft skills in this environment. These abilities are crucial as the work often involves confidential research and fast-paced innovation within a highly specialized and secretive setting.

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Infographic showing various Stealth Biotech job openings in the United States as of August 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution.

Senior Scientist / Scientist, Cell-Based Assays & Immunology

C10 Labs

On-site

$100K - $136K/yr

Full-time

Posted 13 days ago

Job description

About Noara Therapeutics 

Noara Therapeutics is an early-stage, stealth biotechnology company developing next-generation RNA-LNP-based cell  therapies for the treatment of autoimmune diseases, cancer, and other chronic conditions. Our platform integrates  synthetic biology, RNA engineering, machine learning, and high-throughput experimentation to create durable, effective  therapies with reduced immunotoxicity. As a growing startup, we offer a collaborative, fast-paced environment where  every team member has a direct impact on scientific strategy and company success. We are seeking a highly motivated  scientist to lead the development and execution of cell-based and immunology assays that will guide therapeutic  discovery and development. 

Position Summary 

We are seeking an experienced Senior Scientist or Scientist with deep expertise in cell biology, immunology, and assay  development. This is a laboratory-based role with significant opportunities to influence experimental strategy, establish  new capabilities, and contribute to the scientific direction of our platform. 

The successful candidate will work closely with colleagues across molecular biology, computational biology, automation,  and data science to develop robust, scalable assays that support discovery and optimization of our therapeutic  candidates. 
Design, develop, optimize, and execute cell-based and immunology assays to evaluate candidate potency,  cytotoxicity, and biological activity. 
Perform and optimize reporter assays, flow cytometry, and fluorescence-activated cell sorting (FACS) for cellular  characterization and functional assessment. 
Culture, engineer, and characterize human primary cells, with particular emphasis on immune cell populations. Prepare, deliver, and evaluate RNA-LNP formulations in relevant cellular systems. 
Develop scalable, plate-based assay workflows suitable for high-throughput experimentation, including assay  miniaturization, troubleshooting, and SOP development. 
Collaborate closely with molecular biology, computational biology, machine learning, and automation teams to  generate high-quality datasets for downstream analysis and model development. 
Contribute to the establishment of laboratory infrastructure, experimental standards, and best practices. Mentor junior scientists and foster a collaborative, scientifically rigorous research environment. 
Ph.D. in Immunology, Cell Biology, Molecular Biology, or a related discipline. 
For Scientist candidates: 3+ years of relevant industry experience; biotechnology or startup experience is preferred. For Senior Scientist candidates: 5+ years of relevant industry experience with demonstrated scientific leadership;  biotechnology or startup experience is preferred. 
Demonstrated expertise in designing, developing, and optimizing complex cell-based assays. Extensive hands-on experience with flow cytometry and FACS, including multicolor panel design and cell sorting. Strong experience working with human primary cells, particularly primary immune cells. Experience with RNA-LNP delivery systems and/or engineered cell therapies (including CAR-based platforms or  related technologies).
Proven ability to independently lead assay development from concept through implementation. Excellent experimental troubleshooting, analytical, and scientific communication skills. 
Ability to thrive in a dynamic, fast-paced startup environment where adaptability, initiative, and collaboration are  essential. 
Joining Noara means becoming part of a highly collaborative scientific team working at the forefront of RNA  therapeutics and cell engineering. You will have the opportunity to build new skills, influence scientific strategy, and  contribute directly to technologies with the potential to transform the treatment of human diseases. 

Equal Opportunity Employer 

Noara Therapeutics is proud to be an Equal Opportunity Employer. We are committed to building a diverse and inclusive  workplace and welcome applicants of all backgrounds and experiences.

Apply