Demo

Scientist I/II

Relentless Health, Inc.
Menlo Park, CA Full Time
POSTED ON 4/13/2026
AVAILABLE BEFORE 6/13/2026

About Diagnose Early

Diagnose Early is making non-invasive breath testing a mainstream technology. Our mission right now is to use toxin testing and fitness monitoring to help our users detect health risks early. Our long-term vision is to use the data we collect to diagnose health conditions early.

To achieve this, we have assembled a truly world-class team that brings together technical expertise, academic excellence, medical knowledge, and business acumen. The team is working to achieve the best outcomes for all our users and to deliver our mission and vision.

For more Information, visit https://www.diagnoseearly.com.

Position Details

Position Title: Scientist I/II

Department: R & D group

FLSA Status: Exempt 

Location: Menlo Park, CA

Salary Range: $120,000 - $160,000 per annum

Reports to: Chief Science Officer

Scope of Job

Job Summary:

This Scientist I/II position will drive research and carry out experiments in support of efforts to measure compounds in breath and other biological materials.  This is a hands-on position that offers opportunities for innovation of experimental techniques. The position is to be based in our San Francisco Bay Area R&D laboratory.

Essential Functions

To include, but are not limited to the following: 

    • Develop, optimize and validate analytical methods primarily using Thermo Scientific Q-Exactive and Exploris mass spectrometers using LC-MS and other types of mass spectrometric methods to identify and quantify metabolic compounds and exogenous compounds (including carcinogens and toxins).
    • Create laboratory developed tests (LDTs) to be implemented in a CLIA environment.
    • Design, implement bench-scale experiments with multiple variables for small molecule compounds.
    • Be a champion for data quality making judgment calls on qualitative and quantitative validity of analytical data and drive the directions of research projects towards definite conclusions.
    • Collaborate cross-functionally with other R&D teams and successfully communicate with people who have little or no knowledge of mass spectrometry and metabolomics.
    • Maintain meticulous experimental records.
    • Mentor junior team members.
    • Voice ideas, concerns, and solutions as an active team member.
    • Being able to work in an environment which comes with shifting priorities.

    QUALIFICATIONS GUIDELINES

    To include, but are not limited to the following:


    • Ph.D. degree in Analytical Chemistry, Chemistry, Biochemistry or related fields.

    • For Scientist II, 3 years of postdoctoral hands-on laboratory (academic and/or industrial) experience developing analytical methods for small molecule analysis (LC, MS, GC).  For Scientist I, 0-3 years postdoctoral experience.

    • Ability to be a fully independent user of LC-MS and knowledge of instrumentation hardware and software. 

    • Proficiency in Solid Phase Extraction (SPE) is a plus.

    • Experience using the Thermo Scientific Q-exactive platform is essential, including data analysis using both Thermo software and open-source software.

    • Proficiency in untargeted and targeted metabolomics and lipidomics data processing, statistical analysis and data interpretation is essential.

    • Proficiency using Python based analysis tools is desirable.

    • Strong problem-solving skills and proven creativity.

    • Strong oral and written communication skills.

    • Demonstrated ability to work effectively within a diverse and dynamic team.

    • Start-up company experience is a plus.



    Physical Requirements: standing, sitting, walking, stairs, light lifting, computer operation.  


    Diagnose Early is an equal opportunity employer. Diagnose Early offers a competitive compensation package including medical/dental, 401K, paid time off, holidays, and equity.




    Salary : $120,000 - $160,000

    If your compensation planning software is too rigid to deploy winning incentive strategies, it’s time to find an adaptable solution. Compensation Planning
    Enhance your organization's compensation strategy with salary data sets that HR and team managers can use to pay your staff right. Surveys & Data Sets

    Sign up to receive alerts about other jobs with skills like those required for the Scientist I/II.

    Click the checkbox next to the jobs that you are interested in.

    • BI Analytics/Reporting Tools Skill

      • Income Estimation: $125,096 - $177,495
      • Income Estimation: $120,390 - $162,969
    • Brand Management Skill

      • Income Estimation: $131,137 - $174,711
      • Income Estimation: $126,194 - $181,510
    Employees: Get a Salary Increase
    View Core, Job Family, and Industry Job Skills and Competency Data for more than 15,000 Job Titles Skills Library

    Job openings at Relentless Health, Inc.

    • Relentless Health, Inc. Menlo Park, CA
    • About Diagnose Early - Diagnose Early is bringing non-invasive biometric and medical testing to the world. We improve and lengthen life through the develop... more
    • 4 Days Ago

    • Relentless Health, Inc. Menlo Park, CA
    • About Diagnose Early Diagnose Early is making non-invasive breath testing a mainstream technology. Our mission right now is to use toxin testing and fitnes... more
    • 5 Days Ago

    • Relentless Health, Inc. Menlo Park, CA
    • About Diagnose Early Diagnose Early is bringing non-invasive biometric and medical testing to the world. We improve and lengthen life through the developme... more
    • 5 Days Ago


    Not the job you're looking for? Here are some other Scientist I/II jobs in the Menlo Park, CA area that may be a better fit.

    • Guardant Health Palo Alto, CA
    • Company Description Guardant Health is a leading precision oncology company focused on guarding wellness and giving every person more time free from cancer... more
    • 22 Days Ago

    • Joulé Pleasanton, CA
    • Job Title: Scientist II Location: Pleasanton, CA Type: Contract Compensation: $45.00 - $55.00 hourly Job Description : Join a dedicated team of scientists ... more
    • 2 Months Ago

    AI Assistant is available now!

    Feel free to start your new journey!