Top 325 Senior scientist Jobs in San Francisco Bay Area Ca

Senior Scientist I
Merck —San Francisco, CA
- $131,400 - $206,800 a year
- Full-time
- Bachelor of Science
- Analysis skills
- Bachelor's degree
- Paid holidays
- Health insurance
2d
Senior Scientist
ImmunEdge, Inc —Redwood City, CA
- $154,000 - $170,000 a year
- Full-time
- 5 years
- Doctor of Philosophy
- Senior level
- Paid holidays
- Health insurance
Quick Apply
Senior Scientist, Molecular Discovery
Merck —San Francisco, CA
- $131,400 - $206,800 a year
- Full-time
- Master's degree
- Databases
- Bachelor's degree
- Paid holidays
- Health insurance
8d
Senior Scientist, Membrane Protein Biochemistry
Amgen —South San Francisco, CA
- $142,518.65 - $192,819.35 a year
- 3 years
- Bachelor's degree
- Doctor of Philosophy
- Disability insurance
- Health insurance
(Senior) Scientist, Stem Cell
Conception —Berkeley, CA
- Full-time
- Research
- Doctor of Philosophy
- Senior level
- Health insurance
Senior Scientist, Electrochemistry
Voya Energy —Hayward, CA
- $130,000 - $175,000 a year
- Full-time
- 5 years
- System design
- Doctor of Philosophy
- Health insurance
- Dental insurance
Senior Research Associate – Scientist II, Molecular Biology & Viral Vector Platforms
Adicet Bio —Redwood City, CA
- $50 - $69 an hour
- Full-time
- Bachelor of Science
- Research
- Bachelor's degree
- Free parking
- Paid parental leave
Senior Research Associate/Associate Scientist, Antibody Screening and Display
CEDENT —Berkeley, CA
- Bachelor of Science
- 3 years
- Bachelor's degree
Senior Scientist, Cellular Pharmacology
Genentech —San Francisco, CA
- $124,300 - $230,900 a year
- Online Application
- Pass drug screening
- 3 years
- Machine learning
Senior Clinical Scientist, ECD
Natera —San Francisco, CA
- $142,800 - $178,500 a year
- Remote
- Medicine
- 6 years
- Analysis skills
- Commuter assistance
- Health insurance
Senior Scientist - Translational Safety & Risk Sciences (TSRS)
Amgen —San Francisco, CA
- $129,228.90 - $174,839.10 a year
- Remote
- Medicine
- 3 years
- Bachelor's degree
- Disability insurance
- Health insurance
Senior Scientist - siRNA Bioanalysis & Mechanistic Studies
Amgen —South San Francisco, CA
- $143,820.85 - $194,581.15 a year
- Doctoral degree
- 3 years
- Master's degree
- Disability insurance
- Health insurance
Senior Scientist
Vivodyne —San Francisco, CA
- $115,000 - $160,000 a year
- Full-time
- Analysis skills
- Continuous improvement
- Doctor of Philosophy
Senior Clinical Laboratory Scientist
County of Contra Costa —Martinez, CA
- $11,291.60 - $13,725.01 a month
- Full-time
- Hospital
- Basic math
- Analysis skills
Senior Scientist
Corbion —South San Francisco, CA
- $130,000 - $150,000 a year
- Full-time
- 5 years
- Bachelor of Science
- Bachelor's degree
- Paid holidays
- Disability insurance
Senior Scientist - Experimental Protein Design for Target Discovery
Amgen —South San Francisco, CA
- $131,028.35 - $177,273.65 a year
- Medicine
- 3 years
- Bachelor's degree
- Disability insurance
- Health insurance
Senior Scientist, Formulation and DP Development
Sutro Biopharma —South San Francisco, CA
- $155,000 - $168,000 a year
- Full-time
- 7 years
- Bachelor of Science
- Bachelor's degree
8d
Senior Scientist I, Oncology Research
CytomX Therapeutics, Inc. —South San Francisco, CA
- $155,000 - $175,000 a year
- Full-time
- Hybrid work
- Doctor of Philosophy
- Travel
- Senior level
Senior Scientist, Drug Product Development
Alumis —South San Francisco, CA
- $139,000 - $169,000 a year
- Bachelor of Science
- Bachelor's degree
- Doctor of Philosophy
- Health insurance
- Cell phone reimbursement
Quick Apply
Senior Research Associate
Altos Labs —Redwood City, CA
- $109,200 - $140,000 a year
- 5 years
- Master's degree
- Bachelor's degree

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Senior Scientist I

Merck -
San Francisco, CA

Apply Now

Job Details

Full-time
$131,400 - $206,800 a year
2 days ago

Benefits

Paid holidays
Visa sponsorship
Health insurance
Dental insurance
401(k)
Vision insurance

Qualifications

Advanced cell culture techniques
Laboratory project records management
Laboratory safety
Handling proteins
Laboratory sample purification
Laboratory compliance
Cross-functional collaboration
Safety standard operating procedures
Cross-functional communication

Full Job Description

Job Description

Position Summary
We are seeking a highly motivated Senior Scientist to join our Protein Expression and Purification group at our South San Francisco site. The successful candidate will play a crucial role in the discovery of novel therapeutics through design and execution of biologics and protein expression activities with a primary focus on mammalian systems. The successful candidate will bring deep expertise in recombinant biologics production including monoclonal antibodies, multispecific scaffold and novel protein modalities particularly in CHO and HEK293 systems and will contribute to advancing discovery-stage biologics programs.

Key Responsibilities

Design, execute, and optimize recombinant protein expression workflows in mammalian systems (e.g., CHO, HEK293), including transient and stable expression.
Develop and implement strategies to improve protein yield, quality, and scalability for biologics production.
Represent the Protein Design and Production group in project team meeting and propose best path forward, contribute to decision making process and coordinate efforts with stakeholders.
Contribute to DNA construct design, including vector design, cloning strategies, and sequence optimization.
Work with CRO to coordinate outsourcing production activities.
Collaborate with cross-functional teams (protein purification, analytics, discovery teams) to deliver high-quality biologics.
Evaluate and introduce new technologies to enhance efficiency of protein expression platforms.
Troubleshoot complex expression challenges and propose innovative solutions.
Maintain accurate documentation of experiments and communicate results effectively to stakeholders.
Ensure compliance with safety protocols and maintain a clean and organized laboratory environment.
Collaborate effectively with a group of scientists and demonstrate inclusive behaviors to drive our core mission.

Desired Experience and Skills

Extensive hands-on experience in recombinant protein and biologics expression in mammalian systems.
Strong knowledge of cell culture, transfection, process development and cell line development strategies.
Solid background in molecular biology, including construct design, cloning, and plasmid engineering.
Experience working with antibody and complex biologics, bispecifics, fusion proteins).
Commitment to maintaining accurate and timely records in Electronic Laboratory Notebooks (ELN) and databases
Strong problem-solving skills and ability to work in a fast-paced environment.
Excellent communication and collaboration skills.

Preferred Skills

Experience with protein production in bioreactors is a plus but not required.
Knowledge of protein purification and characterization techniques.
Experience with bioinformatics tools for sequence analysis and construct design.

Education Requirements

PhD in Molecular Biology, Cell Biology, Biochemistry, or a related discipline with 3+ years of relevant experience (industry preferred); or MS with 4+ years /BS with 7+ years of significant industry experience.

Required Skills:
Cell Cultures, Cross-Functional Collaboration, Detail-Oriented, High-Throughput Screening, Laboratory Documentation, Mammalian Cell Culture, Molecular Biology Techniques, Primary Cell Culture, Protein Expression, Protein Purifications, Recombinant Protein Expression, Results-Oriented, Safety Protocols, Safety Standards

Preferred Skills:
Current Employees apply HERE

Current Contingent Workers apply HERE

US and Puerto Rico Residents Only:
Our company is committed to inclusion, ensuring that candidates can engage in a hiring process that exhibits their true capabilities. Please click here if you need an accommodation during the application or hiring process.
As an Equal Employment Opportunity Employer, we provide equal opportunities to all employees and applicants for employment and prohibit discrimination on the basis of race, color, age, religion, sex, sexual orientation, gender identity, national origin, protected veteran status, disability status, or other applicable legally protected characteristics. As a federal contractor, we comply with all affirmative action requirements for protected veterans and individuals with disabilities. For more information about personal rights under the U.S. Equal Opportunity Employment laws, visit:

EEOC Know Your Rights
EEOC GINA Supplement

We are proud to be a company that embraces the value of bringing together, talented, and committed people with diverse experiences, perspectives, skills and backgrounds. The fastest way to breakthrough innovation is when people with diverse ideas, broad experiences, backgrounds, and skills come together in an inclusive environment. We encourage our colleagues to respectfully challenge one another’s thinking and approach problems collectively.

Learn more about your rights, including under California, Colorado and other US State Acts

The salary range for this role is
$131,400.00 - $206,800.00
This is the lowest to highest salary we in good faith believe we would pay for this role at the time of this posting. An employee’s position within the salary range will be based on several factors including, but not limited to relevant education, qualifications, certifications, experience, skills, geographic location, government requirements, and business or organizational needs.

The successful candidate will be eligible for annual bonus and long-term incentive, if applicable.

We offer a comprehensive package of benefits. Available benefits include medical, dental, vision healthcare and other insurance benefits (for employee and family), retirement benefits, including 401(k), paid holidays, vacation, and compassionate and sick days. More information about benefits is available at https://jobs.merck.com/us/en/compensation-and-benefits.

You can apply for this role through https://jobs.merck.com/us/en (or via the Workday Jobs Hub if you are a current employee). The application deadline for this position is stated on this posting.

San Francisco Residents Only: We will consider qualified applicants with arrest and conviction records for employment in compliance with the San Francisco Fair Chance Ordinance

Los Angeles Residents Only: We will consider for employment all qualified applicants, including those with criminal histories, in a manner consistent with the requirements of applicable state and local laws, including the City of Los Angeles’ Fair Chance Initiative for Hiring Ordinance

Search Firm Representatives Please Read Carefully
Merck & Co., Inc., Rahway, NJ, USA, also known as Merck Sharp & Dohme LLC, Rahway, NJ, USA, does not accept unsolicited assistance from search firms for employment opportunities. All CVs / resumes submitted by search firms to any employee at our company without a valid written search agreement in place for this position will be deemed the sole property of our company. No fee will be paid in the event a candidate is hired by our company as a result of an agency referral where no pre-existing agreement is in place. Where agency agreements are in place, introductions are position specific. Please, no phone calls or emails.

Employee Status:
Regular

Relocation:
Domestic

VISA Sponsorship:
Yes

Travel Requirements:
10%

Flexible Work Arrangements:
Not Applicable

Shift:
1st - Day

Valid Driving License:
No

Hazardous Material(s):
N/A

Job Posting End Date:
08/7/2026*A job posting is effective until 11:59:59PM on the day BEFORE the listed job posting end date. Please ensure you apply to a job posting no later than the day BEFORE the job posting end date.

Requisition ID: R405544

Apply Now

Refine Your Search

senior scientist jobs in san francisco bay area ca

Senior Scientist I

Senior Scientist

Senior Scientist, Molecular Discovery

Senior Scientist, Membrane Protein Biochemistry

(Senior) Scientist, Stem Cell

Senior Scientist, Electrochemistry

Senior Research Associate – Scientist II, Molecular Biology & Viral Vector Platforms

Senior Research Associate/Associate Scientist, Antibody Screening and Display

Senior Scientist, Cellular Pharmacology

Senior Clinical Scientist, ECD

Senior Scientist - Translational Safety & Risk Sciences (TSRS)

Senior Scientist - siRNA Bioanalysis & Mechanistic Studies

Senior Scientist

Senior Clinical Laboratory Scientist

Senior Scientist

Senior Scientist - Experimental Protein Design for Target Discovery

Senior Scientist, Formulation and DP Development

Senior Scientist I, Oncology Research

Senior Scientist, Drug Product Development

Senior Research Associate

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