OPT Principal Scientist Jobs
Principal Scientist roles qualify for F-1 OPT because they require at least a bachelor's degree in a directly related scientific field, meeting STEM OPT extension eligibility in most cases. Many positions in biotech, pharma, and research institutions actively sponsor H-1B visa and other long-term visas after OPT.
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General Summary:
Vertex is seeking an experienced scientist eager to help develop cutting-edge small molecules and the science underpinning the analytical control of their syntheses. As a member of the Drug Substance Control Strategy team in Analytical Development, this role will support synthetic drug development programs at Vertex with a focus on small molecule drug substance process and control strategy development across clinical and commercial-enabling phases. Specifically, the individual will oversee and execute experiments to develop the overall control strategy for novel drug substances, collaborate closely with associated CMC functions, and act as a subject matter expert liaison with our global network of external drug substance manufacturing and development vendors. The ability to develop novel and creative solutions to overcome project obstacles and make significant conceptual contributions to project teams are criteria for success.
Key Duties and Responsibilities:
- Collaboratively design and oversee drug substance process development analytical activities across all phases of development, including late phase development following Quality by Design (QbD) principles
- Serves as subject matter expert for setting and justifying drug substance, intermediates, and starting materials specifications with the understanding of clinical study design, supporting toxicology studies, and CMC processes and applicable regulatory guidelines
- Identify critical in-process-control issues and develop appropriate IPC methods
- Serve as the subject matter expert for drug substance analytical development with contract manufacturing and testing labs
- Develop analytical methods, suitable for progressive stages of pharmaceutical development
- Justify and set retest period, storage, and shipping conditions for starting materials and intermediates
- Understand chemical development and solid-state development to identify and document critical factors that impact quality, method performance, or associated analytical development activities
- Develop and review source documents for regulatory submissions
- Present to cross functional teams and effectively communicate critical analytical issues and solutions
Knowledge and Skills:
- Excellent verbal and written communication skills are essential
- Experience and/or working knowledge of control strategy development, spike / purge studies, drug substance QbD process development
- Good understanding of cGMP, ICH, FDA, and USP guidelines, including ICH guidelines on the control of impurities (organic, residual solvents, and elemental, DNA reactive (including ICH M7 option 4 / in silico control), and nitrosamines)
- Skilled in modern analyses for small molecule pharmaceuticals, particularly chromatography
- The ability to work successfully in both a team/matrix environment as well as independently
- The ability to work in a fast-paced environment, manage priorities, communicate outcomes and maintain timelines for multiple projects
Education and Experience:
Ph.D. with 4+ years of relevant analytical development experience, particularly focused on development of novel small molecule drug substances. Exceptional candidates with MS degree and 7+ years or BS degree and 10+ years of high-level experience will also be considered. Background in, or good understanding of modern synthetic organic chemistry, as well as of the drug substance development process, process chemistry, and pharmaceutical manufacturing, and their interrelationship with analytical development.
Pay Range:
$140,800 - $211,200
Disclosure Statement:
The range provided is based on what we believe is a reasonable estimate for the base salary pay range for this job at the time of posting. This role is eligible for an annual bonus and annual equity awards. Some roles may also be eligible for overtime pay, in accordance with federal and state requirements. Actual base salary pay will be based on a number of factors, including skills, competencies, experience, and other job-related factors permitted by law.
At Vertex, our Total Rewards offerings also include inclusive market-leading benefits to meet our employees wherever they are in their career, financial, family and wellbeing journey while providing flexibility and resources to support their growth and aspirations. From medical, dental and vision benefits to generous paid time off (including a week-long company shutdown in the Summer and the Winter), educational assistance programs including student loan repayment, a generous commuting subsidy, matching charitable donations, 401(k) and so much more.
Flex Designation:
On-Site Designated
Flex Eligibility Status:
In this On-Site designated role, you will work five days per week on-site with ad hoc flexibility.
Note: The Flex status for this position is subject to Vertex’s Policy on Flex @ Vertex Program and may be changed at any time.
LI-Onsite
Vertex is committed to equal employment opportunity and non-discrimination for all employees and qualified applicants without regard to a person's race, color, sex, gender identity or expression, age, religion, national origin, ancestry, ethnicity, disability, veteran status, genetic information, sexual orientation, marital status, or any characteristic protected under applicable law. Vertex is an E-Verify Employer in the United States. Vertex will make reasonable accommodations for qualified individuals with known disabilities, in accordance with applicable law.
Any applicant requiring an accommodation in connection with the hiring process and/or to perform the essential functions of the position for which the applicant has applied should make a request to the recruiter or hiring manager, or contact Talent Acquisition at ApplicationAssistance@vrtx.com
Job Description
General Summary:
Vertex is seeking an experienced scientist eager to help develop cutting-edge small molecules and the science underpinning the analytical control of their syntheses. As a member of the Drug Substance Control Strategy team in Analytical Development, this role will support synthetic drug development programs at Vertex with a focus on small molecule drug substance process and control strategy development across clinical and commercial-enabling phases. Specifically, the individual will oversee and execute experiments to develop the overall control strategy for novel drug substances, collaborate closely with associated CMC functions, and act as a subject matter expert liaison with our global network of external drug substance manufacturing and development vendors. The ability to develop novel and creative solutions to overcome project obstacles and make significant conceptual contributions to project teams are criteria for success.
Key Duties and Responsibilities:
- Collaboratively design and oversee drug substance process development analytical activities across all phases of development, including late phase development following Quality by Design (QbD) principles
- Serves as subject matter expert for setting and justifying drug substance, intermediates, and starting materials specifications with the understanding of clinical study design, supporting toxicology studies, and CMC processes and applicable regulatory guidelines
- Identify critical in-process-control issues and develop appropriate IPC methods
- Serve as the subject matter expert for drug substance analytical development with contract manufacturing and testing labs
- Develop analytical methods, suitable for progressive stages of pharmaceutical development
- Justify and set retest period, storage, and shipping conditions for starting materials and intermediates
- Understand chemical development and solid-state development to identify and document critical factors that impact quality, method performance, or associated analytical development activities
- Develop and review source documents for regulatory submissions
- Present to cross functional teams and effectively communicate critical analytical issues and solutions
Knowledge and Skills:
- Excellent verbal and written communication skills are essential
- Experience and/or working knowledge of control strategy development, spike / purge studies, drug substance QbD process development
- Good understanding of cGMP, ICH, FDA, and USP guidelines, including ICH guidelines on the control of impurities (organic, residual solvents, and elemental, DNA reactive (including ICH M7 option 4 / in silico control), and nitrosamines)
- Skilled in modern analyses for small molecule pharmaceuticals, particularly chromatography
- The ability to work successfully in both a team/matrix environment as well as independently
- The ability to work in a fast-paced environment, manage priorities, communicate outcomes and maintain timelines for multiple projects
Education and Experience:
Ph.D. with 4+ years of relevant analytical development experience, particularly focused on development of novel small molecule drug substances. Exceptional candidates with MS degree and 7+ years or BS degree and 10+ years of high-level experience will also be considered. Background in, or good understanding of modern synthetic organic chemistry, as well as of the drug substance development process, process chemistry, and pharmaceutical manufacturing, and their interrelationship with analytical development.
Pay Range:
$140,800 - $211,200
Disclosure Statement:
The range provided is based on what we believe is a reasonable estimate for the base salary pay range for this job at the time of posting. This role is eligible for an annual bonus and annual equity awards. Some roles may also be eligible for overtime pay, in accordance with federal and state requirements. Actual base salary pay will be based on a number of factors, including skills, competencies, experience, and other job-related factors permitted by law.
At Vertex, our Total Rewards offerings also include inclusive market-leading benefits to meet our employees wherever they are in their career, financial, family and wellbeing journey while providing flexibility and resources to support their growth and aspirations. From medical, dental and vision benefits to generous paid time off (including a week-long company shutdown in the Summer and the Winter), educational assistance programs including student loan repayment, a generous commuting subsidy, matching charitable donations, 401(k) and so much more.
Flex Designation:
On-Site Designated
Flex Eligibility Status:
In this On-Site designated role, you will work five days per week on-site with ad hoc flexibility.
Note: The Flex status for this position is subject to Vertex’s Policy on Flex @ Vertex Program and may be changed at any time.
LI-Onsite
Vertex is committed to equal employment opportunity and non-discrimination for all employees and qualified applicants without regard to a person's race, color, sex, gender identity or expression, age, religion, national origin, ancestry, ethnicity, disability, veteran status, genetic information, sexual orientation, marital status, or any characteristic protected under applicable law. Vertex is an E-Verify Employer in the United States. Vertex will make reasonable accommodations for qualified individuals with known disabilities, in accordance with applicable law.
Any applicant requiring an accommodation in connection with the hiring process and/or to perform the essential functions of the position for which the applicant has applied should make a request to the recruiter or hiring manager, or contact Talent Acquisition at ApplicationAssistance@vrtx.com
See all 355+ OPT Principal Scientist Jobs
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Get Access To All JobsTips for Finding OPT Sponsorship as a Principal Scientist
Target STEM-designated employers first
Principal Scientist roles at biotech and pharmaceutical companies almost always fall under STEM OPT, giving you 36 months of work authorization. Prioritize employers who have filed H-1B visa petitions before, which signals established sponsorship infrastructure.
Align your degree field to the job description
USCIS requires your degree field to directly relate to your Principal Scientist role. A PhD in biochemistry supporting a drug discovery position is straightforward. Misalignment between degree and role is one of the most common OPT authorization challenges.
Raise sponsorship before the offer stage
Ask about long-term visa support during the second or third interview round, not at offer. Framing it as planning ahead rather than a demand signals professionalism and gives HR time to confirm their sponsorship policy without pressure.
Document your STEM OPT training plan thoroughly
The Form I-983 training plan for STEM OPT must describe how your Principal Scientist work directly applies your degree. Be specific about research methods, technical skills, and learning goals. Vague plans increase the risk of employer non-compliance issues.
Use your publication record as leverage
Published research strengthens both your job applications and future O-1 visa or EB-1A petitions. Highlight first-author papers, citations, and patents in your application materials. Strong research credentials make sponsorship an easier conversation for employers.
Understand your OPT end date before you start interviewing
Principal Scientist hiring timelines often run three to five months. If your OPT expires in under six months, communicate that timeline early. Some employers will accelerate offers or explore cap-exempt H-1B filing through research institutions.
Principal Scientist OPT: Frequently Asked Questions
Does a Principal Scientist role qualify for STEM OPT extension?
Yes, in most cases. Principal Scientist positions in biology, chemistry, engineering, computer science, and related fields typically qualify for the 24-month STEM OPT extension, giving you 36 months total. Your degree must be on the STEM Designated Degree Program List and must directly relate to your specific role and responsibilities.
How do I find Principal Scientist jobs where employers are open to OPT sponsorship?
Migrate Mate filters Principal Scientist roles by OPT and visa sponsorship status, so you're not wasting time applying to employers who won't support your work authorization. Biotech, pharmaceutical, and government research employers are among the most active sponsors. Searching by sector helps you focus on organizations with established immigration infrastructure.
Can I work as a Principal Scientist at a university or national lab on OPT?
Yes. Universities and national laboratories are among the most OPT-friendly employers for research scientists. They frequently qualify as cap-exempt H-1B employers, which means they can file H-1B petitions at any time of year without waiting for the annual lottery. This is a significant advantage if your OPT is running short.
What happens if my OPT expires before my employer files an H-1B petition?
If your STEM OPT is still active when your employer submits an H-1B petition before April 1, you're covered by the cap-gap rule, which automatically extends your OPT authorization through September 30. If your OPT expires before that window, you'll need to stop working until the H-1B takes effect or explore alternative visa categories like O-1.
Is the Principal Scientist title specific enough for OPT authorization, or do I need a different job title?
The job title itself doesn't determine OPT eligibility. What matters is that your actual duties require and directly apply your specific degree field. A Principal Scientist role involving computational drug discovery supports a bioinformatics or chemistry degree. Your employer should document the connection clearly in any OPT or STEM OPT paperwork to avoid authorization questions.