Thermo Fisher Scientific

R&D Scientist III

Thermo Fisher Scientific$100K — $133K *
Pharmaceuticals & Biotech
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • MS in Chemistry, Biochemistry, or related field with 4+ years of lab experience or PhD with 2-3 years in organic synthesis or bioconjugation.
  • Practical experience in organic synthesis, purification, and characterization of small molecules or conjugates.
  • Exposure to protein conjugation and relevant analytical techniques preferred.
  • Experience with immunoassay or diagnostic reagent development is advantageous.
  • Proficiency in synthetic design, chromatography, and analytical tools like LC-MS, HPLC, and NMR.

Responsibilities

  • Perform synthesis, purification, and characterization of haptens, adducts, and conjugates.
  • Execute protein conjugation reactions and validate product integrity using analytical techniques.
  • Collaborate with cross-functional teams to ensure material transfer and quality.
  • Troubleshoot and optimize synthetic workflows for improved yield.
  • Maintain accurate lab documentation and support continuous process improvement.

Benefits

  • Competitive remuneration and annual incentive plan bonus.
  • National medical, dental, and vision plans with health incentive programs.
  • Comprehensive employee assistance and family support programs, including commuter benefits and tuition reimbursement.
  • At least 120 hours paid time off (PTO), 10 paid holidays, and paid parental leave.
  • Retirement savings programs, including a competitive 401(k) plan and stock purchase plan.
Full Job Description
Work Schedule
First Shift (Days)

Environmental Conditions
Adherence to all Good Manufacturing Practices (GMP) Safety Standards, Office, Some degree of PPE (Personal Protective Equipment) required (safety glasses, gowning, gloves, lab coat, ear plugs etc.)

Job Description

Contribute to the development of high-quality assay reagents by designing and executing synthetic routes for haptens, adducts, and related intermediates. Apply your hands-on expertise in organic synthesis, bioconjugation, and analytical chemistry to deliver consistent, high-performance materials that support diagnostic innovation.

Location: Fremont, CA.

Relocation assistance is NOT provided.

A day in the Life:
  • Perform synthesis, purification, and characterization of haptens, adducts, and conjugates.
  • Execute protein conjugation reactions and validate product integrity through analytical techniques (HPLC, MS, UV, etc.).
  • Collaborate with cross-functional teams to transfer materials and ensure reagent quality.
  • Troubleshoot and optimize synthetic or conjugation workflows for improved yield and consistency.
  • Maintain accurate laboratory documentation and support continuous process improvement.
Keys to Success:
  • Strong foundation in synthetic organic chemistry and bioconjugation principles.
  • Hands-on approach with attention to experimental detail and reproducibility.
  • Effective collaboration and communication within multi-disciplinary project teams.
  • Ability to manage multiple priorities and deliver reliable results on time.
  • Commitment to quality, safety, and scientific integrity.
Education
  • MS in Chemistry, Biochemistry, or related field with 4+ years of relevant laboratory experience, or
  • PhD with 2-3 years of experience in organic synthesis, bioconjugation, or related discipline.
Experience
  • Practical experience in organic synthesis, purification, and characterization of small molecules or conjugates.
  • Exposure to protein conjugation and analytical characterization techniques preferred.
  • Experience with immunoassay or diagnostic reagent development is an advantage.


Knowledge, Skills, Abilities
  • Proficiency in synthetic design, purification (chromatography), and analytical tools (LC-MS, HPLC, UV-Vis, NMR).
  • Demonstrated proficiency and extensive laboratory experience in conjugation chemistry and protein modification.
  • Excellent organizational, communication, and problem-solving skills.
  • Ability to work independently and collaboratively in a fast-paced R&D environment.
  • Strong documentation and data interpretation skills, aligned with quality and safety standards.


Physical Requirements / Work Environment
  • Controlled Substance Handling: This role involves the handling, management, and oversight of controlled substances. The role will be responsible for ensuring compliance with all relevant regulations and guidelines on controlled substances.
  • Exposure to Controlled Substances: The role may be exposed to controlled substances during their duties. Proper safety protocols and protective measures will be provided and must be strictly followed.
  • Safety Protocols: Ability to adhere to strict safety protocols and procedures to ensure a safe working environment.
  • Background Check: Successful completion of a background check, including screening for any history related to controlled substances.
  • Must be legally authorized to work in the United States without sponsorship.


Benefits

We offer competitive remuneration, annual incentive plan bonus, healthcare, and a range of employee benefits.

Compensation and Benefits
The salary range estimated for this position based in California is $100,000.00-$133,300.00.

This position may also be eligible to receive a variable annual bonus based on company, team, and/or individual performance results in accordance with company policy. We offer a comprehensive Total Rewards package that our U.S. colleagues and their families can count on, which includes:
  • A choice of national medical and dental plans, and a national vision plan, including health incentive programs
  • Employee assistance and family support programs, including commuter benefits and tuition reimbursement
  • At least 120 hours paid time off (PTO), 10 paid holidays annually, paid parental leave (3 weeks for bonding and 8 weeks for caregiver leave), accident and life insurance, and short- and long-term disability in accordance with company policy
  • Retirement and savings programs, such as our competitive 401(k) U.S. retirement savings plan
  • Employees' Stock Purchase Plan (ESPP) offers eligible colleagues the opportunity to purchase company stock at a discount


For more information on our benefits, please visit: https://jobs.thermofisher.com/global/en/total-rewards

About Thermo Fisher Scientific

Thermo Fisher Scientific Careers

Join the vibrant team at Thermo Fisher Scientific, a global leader in serving science and making the world healthier, cleaner, and safer. With a workforce of over 75,000 professionals, Thermo Fisher Scientific offers unparalleled job opportunities and a culture of innovation that propels your career to new heights. Work You’ll Do At Thermo Fisher Scientific, you will be part of a team that is dedicated to enabling our customers to make the world healthier. Whether you are involved in the development of life-saving drugs or innovative environmental solutions, your work will have a profound impact on society. Our commitment to leadership in the industry is unwavering. With Thermo Fisher Scientific, you will lead projects that set standards in scientific inquiry and market leadership. You will work at the intersection of science, technology, and industry expertise, driving digital innovation in every aspect of our business. Join our diverse team of professionals and engage in roles that span across various functions and disciplines. From research and development to marketing and sales, the breadth of job opportunities available means that you can find the perfect match for your skills and passions. Innovative Work As part of our team, you will have access to cutting-edge tools and technologies that foster creativity and innovation. Thermo Fisher Scientific is home to a dynamic range of career paths, all designed to challenge you and help you grow as a professional. Our employment philosophy emphasizes diversity and inclusivity, ensuring that all team members have the opportunity to thrive. We believe in nurturing talent through robust training programs, leadership development, and opportunities for career advancement. Be Part of a Great Team Working at Thermo Fisher Scientific means being part of a global network of enthusiastic, talented, and ambitious individuals. Our culture is built on collaboration, where each member’s unique skills and perspectives are valued. You will enjoy benefits that support both your professional growth and personal well-being. Future-Proof Your Career Embark on a journey of growth and continuous learning with Thermo Fisher Scientific. We offer a variety of training and development programs that cater to your interests and career goals. From internships for budding scientists to leadership training for aspiring executives, our programs are designed to equip you with the skills needed for a successful and fulfilling career. Explore Discover how our commitment to innovation leads to advancements in health and science: [Read More] Learn about our leadership in environmental sustainability and how you can contribute: [Read More] The Thermo Fisher Scientific Difference Our global presence and commitment to innovation mean that your work extends beyond borders and makes a tangible impact worldwide. The collaboration between our teams drives our leadership in the scientific community and contributes to a culture that embraces diversity and fosters professional growth. Stay Connected Join Our Team Search open positions that match your skills and interest. We are always on the lookout for passionate, curious, and driven team players. Explore our job opportunities and find out how you can contribute to our meaningful work. SEARCH THERMO FISHER SCIENTIFIC JOBS Keep Up to Date Stay ahead with career tips, insider perspectives, and industry-leading insights you can put to use today—all from the people who work here. READ CAREERS BLOG Job Alert Emails Customize your subscription to receive job alerts, latest news, and insider tips tailored to your preferences. Discover the exciting and rewarding opportunities that await at Thermo Fisher Scientific.
Learn more about Thermo Fisher Scientific
Size
130,000 employees
Market Cap
$213.3 billion
Industry
Net Income
$6.3 billion
Founded
1956
5 Year Trend
+16.5%
Revenue
$32.2 billion
NASDAQ

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