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Principal Scientist Assay Development Jobs (NOW HIRING)

Alphanumeric

Principal Scientist

Cambridge, MA · On-site

$78 - $83.50/hr

Alphanumeric is hiring a PRINCIPAL SCIENTIST to work in Cambridge, MA with our client of 20 years ... Lead development of cell-based assays to evaluate and rank multi-epitope mRNA construct designs (e ...

Alphanumeric

Principal Scientist

Cambridge, MA

$78 - $83.50/hr

Alphanumeric is hiring a PRINCIPAL SCIENTIST to work in Cambridge, MA with our client of 20 years ... Lead development of cell-based assays to evaluate and rank multi-epitope mRNA construct designs (e ...

Alphanumeric

Principal Scientist

Cambridge, MA · On-site

$78 - $83.50/hr

Alphanumeric is hiring a PRINCIPAL SCIENTIST to work in Cambridge, MA with our client of 20 years ... Lead development of cell-based assays to evaluate and rank multi-epitope mRNA construct designs (e ...

Legend Biotech USA, Inc.

... including assay development, validation, CRO oversight, and deep data interpretation to support ... Conduct deep scientific review and interpretation of flow cytometry datasets to support PK/PD ...

GrapheneDx

Research Scientist, Assay Development

Boston, MA · On-site

$85K - $120K/yr

The Research Scientist in Assay Development will design and execute experiments to functionalize sensors with nucleic acid or antibody probes for biomarker detection, contributing to the development ...

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Principal Scientist Assay Development information

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$68.5K

$144K

$190.5K

How much do principal scientist assay development jobs pay per year?

As of Jun 9, 2026, the average yearly pay for principal scientist assay development in the United States is $144,009.00, according to ZipRecruiter salary data. Most workers in this role earn between $117,500.00 and $169,000.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a Principal Scientist Assay Development, and why are they important?

To thrive as a Principal Scientist Assay Development, you need advanced expertise in biochemistry or molecular biology, a PhD or equivalent experience, and a strong background in assay design and validation. Familiarity with laboratory automation, data analysis software, and regulatory compliance systems such as GLP/GMP is typically required. Leadership, project management, and effective communication are crucial soft skills for guiding teams and collaborating across departments. These skills ensure robust assay performance, regulatory adherence, and efficient innovation in complex scientific environments.

What is the difference between Principal Scientist Assay Development vs Senior Scientist Assay Development?

AspectPrincipal Scientist Assay DevelopmentSenior Scientist Assay Development
CredentialsAdvanced degree (PhD or equivalent), extensive experienceMaster's or PhD, significant industry experience
Work EnvironmentLeads assay development projects, strategic planningExecutes assay development tasks, supports project teams
Employer & Industry UsagePharmaceutical, biotech, CROs, biotech companiesPharmaceutical, biotech, research labs

The main difference between Principal Scientist Assay Development and Senior Scientist Assay Development lies in their level of responsibility and leadership. Principal Scientists typically lead projects, set strategies, and have more extensive experience, while Senior Scientists focus on executing assays and supporting project goals. Both roles require strong technical expertise, but the Principal Scientist position involves higher-level decision-making and oversight.

What are some common challenges faced by Principal Scientists in Assay Development, and how can they be addressed?

Principal Scientists in Assay Development often encounter challenges such as optimizing assay sensitivity and specificity, troubleshooting inconsistent results, and scaling up assays for high-throughput screening. Addressing these issues requires strong analytical thinking, effective cross-functional collaboration with research, engineering, and quality assurance teams, and staying updated with the latest technological advances. Regularly reviewing validation protocols and actively participating in peer discussions can also help in overcoming technical hurdles and ensuring robust assay performance.

What does a Principal Scientist in Assay Development do?

A Principal Scientist in Assay Development leads the design, optimization, and validation of assays used for research, diagnostics, or drug development. They oversee laboratory teams, develop protocols, and ensure that assays meet regulatory and quality standards. Their role also involves troubleshooting complex scientific problems, collaborating with cross-functional teams, and staying current with technological advances in assay technologies. Principal Scientists play a key role in translating scientific concepts into reliable, reproducible assays that support broader organizational goals.
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What cities are hiring for Principal Scientist Assay Development jobs? Cities with the most Principal Scientist Assay Development job openings:
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Principal Scientist Assay Development jobs near you
Infographic showing various Principal Scientist Assay Development job openings in the United States as of May 2026, with employment types broken down into 90% Full Time, and 10% Contract. Highlights an 100% In-person job distribution, with an average salary of $144,009 per year, or $69.2 per hour.
Principal Scientist, Biosensor Assay Development

Principal Scientist, Biosensor Assay Development

Allegro MicroSystems

Manchester, NH • On-site

Full-time

Posted 23 days ago

Job description

The Allegro team is united by a clear purpose-advancing technologies that make the world safer, more efficient, and more sustainable. With over 30 years of experience in semiconductor innovation, we bring that purpose to life across every part of the business-from breakthrough product development and customer success to how we show up for each other and the communities we serve.
The Opportunity
Allegro MicroSystems is expanding its technology portfolio by integrating high-precision semiconductor sensing with advanced biochemistry, developing a lab on chip solution for point of care diagnostics. We are seeking a Principal Assay Scientist to lead the biochemical development and application of our Giant Magnetoresistance (GMR) biosensor platform. This is a foundational role within a specialized internal venture, where you will be responsible for the "wet-ware" and surface chemistry that allows our sensors to interface with complex biological systems.
As a hands-on leader, you will establish our Manchester-based biochemistry lab, oversee the development of diverse assay formats, and work directly with global customers to transition their biological and diagnostic applications onto our sensing platform.
What You Will Do
  • Foundational Lab Leadership: Establish and oversee a new biochemistry R&D laboratory in Manchester. You will define SOPs, manage safety protocols, and lead a small, agile team (initially 1-2 members) to support rapid prototyping and validation.
  • Multi-Modal Assay Development: Lead the design and optimization of various assay formats, including sandwich and competitive architectures. You will work across a wide range of targets (Proteins, DNA, RNA) and sample matrices (e.g., whole blood, serum, saliva) to prove platform versatility.
  • Surface Chemistry & Interface Engineering: Optimize the functionalization of sensor surfaces. You will develop robust protocols for tethering capture molecules to semiconductor-based sensor stacks while minimizing non-specific binding and ensuring long-term reagent stability.
  • Field Applications & Customer Success: Serve as the Lead Field Applications Scientist (FAS). You will support early-adopter customers by creating proof-of-concept samples, validating their specific use cases, and traveling to customer sites to assist with technical bring-up and method transfer.
  • Production & Method Transfer: Collaborate with microfluidic, packaging, and manufacturing engineers to ensure biochemical methods are compatible with high-volume production and cartridge assembly processes.

What You Will Need
  • Ph.D. in Biochemistry, Bioengineering, Molecular Biology, or a related scientific field.
  • 8-12 years of experience in Assay Development within the diagnostics or life sciences industry. Proven success in taking an assay from early-stage concept through to a validated method.
  • Deep expertise in immunoassays and/or molecular diagnostic techniques.
  • Strong understanding of surface functionalization (e.g., silanes, PEGylation, or related chemistry).
  • Experience working with microfluidic systems or "Lab-on-a-Chip" platforms.
  • A "hands-on" entrepreneurial approach. You must be comfortable wearing many hats-from bench work and lab management to technical sales support and high-level strategy.
  • Ability to bridge the gap between biochemistry and electronic engineering.
  • Ability to travel up to 25% to support global customer integration and production bring-up.

#LI-Hybrid
Why Allegro?
Join Allegro and become part of a team where your contributions truly matter.
We foster a culture of Real Innovation, empowering you to push boundaries, develop cutting-edge solutions, and drive continuous improvement.
Your work will create a Real Impact by solving complex real-world challenges that fuel our success and shape the future of technology.
You'll experience Real Connection, collaborating with talented colleagues around the globe in an environment built on trust, respect, and a shared purpose.
Join us-and help build what's next.
At Allegro, we are committed to providing a harassment-free environment of mutual respect to fuel innovation through inclusive thought collaboration. Allegro is an Equal Opportunity Employer and does not discriminate on the basis of race, religion, color, sex, gender identity, sexual orientation, age, physical or mental disability, national origin, veteran status, parental status, or any other basis covered by appropriate law. Allegro makes hiring decisions based solely on qualifications, merit, and business needs at the time.
Eligible applicants must reside in a state where Allegro currently has an office location: This includes New Hampshire, Massachusetts, Texas, and Michigan. Certain positions (such as field sales roles) may be exempt from this requirement.

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