Senior Research Associate, Histology

Mirai Bio is a privately-held, Flagship-founded biotechnology company that is delivering genetic medicines from promise to performance. Mirai was built to solve one of the field’s central challenges: achieving precise, scalable delivery of diverse nucleic acid payloads to specific cells and tissues, particularly beyond the liver. By combining a large and growing proprietary in vivo biodistribution dataset, machine learning-guided lipid nanoparticle optimization, modular targeted particle design, and integrated translation and manufacturing capabilities, Mirai helps partners accelerate development, reduce technical risk, and pursue high-value programs making delivery a strategic advantage.

We are seeking collaborative, relentless problem solvers that share our passion for defining the future of genetic medicines together.

We are seeking a Senior Research Associate, Histology contractor to join the Platform Group at Mirai Bio to support laboratory research activities towards development of novel technologies enabling next generation genomic medicines. The successful candidate will have a strong understanding of the technical and equipment needs in a lab as well as significant hands-on experience with standard histology, cell culturing and in vitro cell biology techniques.

They will work independently and as part of a collaborative team.

• Performing laboratory assays and tasks including processing tissues for histology, plate-based reporter assays and additional in vitro assays
• Review data slides to streamline optimization and data analysis of immune histochemistry and immuno florescence readouts
• Help manage external vendors and CRO in support of histology assays
• Developing new assays or optimizing existing ones based on in-depth knowledge of laboratory techniques.
• Analyzing and accurately documenting assay results in an electronic lab notebook or other technical reporting formats

• BS or MS in Biology, Biochemistry, Molecular Biology, or related scientific discipline
• BS + 5 years of relevant industry or research experience
• MS + 3 years of relevant industry or research experience
• Previous experience with histology evaluation and in vitro cell based assays is required
• Strong cell culture experience, including experience executing protocols, troubleshooting assays is preferred
• Prior experience working with lipid nanoparticles is a plus
• Proven ability to work independently and cross-functionally with highly skilled teams in a fast-paced, entrepreneurial, and technical environment
• Strong organizational and problem-solving skills
• Motivated, curious, and comfortable working with highly technical projects and personnel
• Excellent communication and presentation skills, capable of conveying technical information in a clear and thorough manner

Flagship Pioneering invents and builds platform companies, each with the potential for multiple products that transform human health, sustainability and beyond. Since its launch in 2000, Flagship has originated more than 100 companies. Many of these companies have addressed humanity’s most urgent challenges: vaccinating billions of people against COVID-19, curing intractable diseases, improving human health, preempting illness, and feeding the world by improving the resiliency and sustainability of agriculture.

Flagship has been recognized twice on FORTUNE's “Change the World” list, an annual ranking of companies that have made a positive social and environmental impact through activities that are part of their core business strategies and has been twice named to Fast Company's annual list of the World’s Most Innovative Companies. Learn more about Flagship at

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