Clinical Assistant Jobs at Quest Diagnostics with Visa Sponsorship
Clinical Assistant jobs at Quest Diagnostics span nationwide patient service centers and laboratory networks, supporting specimen collection and patient-facing care. The company has an established track record of sponsoring work visas for this role, making it a realistic target if you're navigating F-1 OPT, H-1B visa, or longer-term permanent residency pathways.
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$5,000 Sign On Bonus Available (For Externals Only)
Clinical Lab Scientist I
Location: San Juan Capistrano, CA
Work Schedule: Tuesday to Saturday, 7:00 AM to 3:30 PM
Department: Microbiology
Pay range: $40.00 - $56.44 / hour
Salary offers are based on a wide range of factors including relevant skills, training, experience, education, and, where applicable, certifications obtained. Market and organizational factors are also considered. Successful candidates may be eligible to receive annual performance bonus compensation.
Benefits Information
We are proud to offer best-in-class benefits and programs to support employees and their families in living healthy, happy lives. Our pay and benefit plans have been designed to promote employee health in all respects – physical, financial, and developmental. Depending on whether it is a part-time or full-time position, some of the benefits offered may include:
- Day 1 Medical, supplemental health, dental & vision for FT employees who work 30+ hours
- Best-in-class well-being programs
- Annual, no-cost health assessment program Blueprint for Wellness®
- healthyMINDS mental health program
- Vacation and Health/Flex Time
- 6 Holidays plus 1 "MyDay" off
- FinFit financial coaching and services
- 401(k) pre-tax and/or Roth IRA with company match up to 5% after 12 months of service
- Employee stock purchase plan
- Life and disability insurance, plus buy-up option
- Flexible Spending Accounts
- Annual incentive plans
- Matching gifts program
- Education assistance through MyQuest for Education
- Career advancement opportunities
- and so much more!
This position is accountable for performing clinical laboratory testing, following all applicable policies and procedures.
Responsibilities
- Independently performs moderate to highly complex clinical tests following the required procedures and policies. Performs newly introduced tests to the laboratory that require defined skills.
- Prepares and oversees the preparation of reagents or media as well as stock solutions, standards, and controls. Tests new reagents or controls and evaluates their usefulness based on standard criteria.
- Determines the acceptability of specimens for testing according to established criteria in testing procedures.
- Determines calculated results utilizing testing data by means of manual or computerized procedures.
- Accurately enters results of testing. Checks the computer review reports to monitor accurate reporting of laboratory results. Adheres to analytical schedules to maintain turnaround times of results.
- Evaluates the acceptability of routine and complex analyses prior to releasing patient reports. Recognizes and takes appropriate action in response to critical values or unusual or unexpected results, and documents action taken.
- Responsible for preventative maintenance, troubleshooting and calibration of laboratory equipment.
- Evaluates the results of instrument performance checks. Performs linearity, accuracy and precision checks as required.
- Performs Quality Control and calibrations with the appropriate frequency and evaluates results, to determine acceptability of result release.
- Selects and evaluates control materials using established criteria. Initiates a corrective action process whenever test systems do not perform according to the established criteria.
- Accurately performs and records proficiency testing.
- Demonstrates the ability to detect and correct technical and operational problems. Notifies the supervisor, and contacts manufacturer or field service support for additional assistance, if necessary.
- Ensures accurate tracking and labeling of reagents and supplies.
- Consistently maintains a safe and neat work area.
- Demonstrates effective two-way communication with staff, immediate manager, suppliers, internal and external customers, via meetings, written and verbal interactions, to create an informed positive environment.
- Actively participates in staff meetings, and in Quality Improvement meetings as assigned.
- Takes on additional business-related responsibilities or projects, as delegated by the Supervisor or Manager. This may include but not be limited to evaluation of new techniques and procedures in terms of personnel and requirements, method comparison, cost analysis, establishment of reference ranges, writing and revising technical procedures, and evaluation of productivity and key results measures.
- Responsible for following all required procedures, practices and related guidelines as provided in company policy and associated procedures for safety, environmental, and infection control.
- Collects and dispose of waste in proper receptacles.
- Demonstrates a high level of integrity and honesty in maintaining confidentiality.
- Provides direct and constant supervision to unlicensed staff as necessary and trains staff in proper performance of both routine and complex procedures. Supports Training Programs, where applicable.
- Maintains professional growth and development through continuing education. The continuing education must meet the education requirements for California state licensure.
- Answers phones, transfers, or takes accurate messages.
- Complies with all health and safety policies, procedures, and practices. Required to use personal protective equipment.
- Other duties as assigned. This is not an exhaustive list of all duties and responsibilities, but rather a general description of work performed by the position.
Qualifications
Required Work Experience
- Zero to three year’s direct experience in a laboratory setting.
Physical And Mental Requirements
- The normal performance of duties may require lifting and carrying objects. Objects in the weight range of 1 to 10 pounds are lifted and carried frequently; objects in the weight range of 11 to 25 pounds are lifted and carried occasionally and objects in the weight range of 26 to 50 pounds are seldom lifted and carried. Objects exceeding 50 pounds are not to be lifted or carried without assistance.
- Ability to perform repetitive tasks. Frequent simple grasping, reaching and fine manipulation.
- Ability to sit and/or stand for long periods.
- Have good eye and hand coordination.
- Testing for color blindness will be required upon hiring or transfer into technical functions requiring detection of, or rating of intensity of colors (e.g., Fluorescent microscopy reading).
Skills
- Proficiency in Microsoft Office Application (Word, Excel, Outlook)
- Strong typing skills desirable.
- Other automation skills helpful.
Education
- Bachelor’s Degree Medical technology or other life or physical sciences from an accredited college or university. (Required)
Licenses and Certifications
- Current State Clinical Laboratory Scientist license if necessary (e.g. California) (Required)
Qualified applicants with arrest or conviction records will be considered for Employment in accordance with the following laws if applicable, the Los Angeles County Fair Chance Ordinance for Employers, the Los Angeles' Fair Chance Initiative for Hiring Ordinance, the San Francisco Fair Chance Ordinance, and the California Fair Chance Act. Quest believes that conviction records may have a direct, adverse, and negative relationship to the following job duties: accessing company property, information, assets, and products including sensitive information; accessing customer data or confidential information, and partnering and regularly working with or supervising other Quest employees and interacting with Quest customers. MLS, Medical Laboratory Scientist, Medical Lab Scientist, Med Tech, Medical Technologist, CLS, Clinical Lab Scientist
About The Team
Quest Diagnostics honors our service members and encourages veterans to apply. While we appreciate and value our staffing partners, we do not accept unsolicited resumes from agencies. Quest will not be responsible for paying agency fees for any individual as to whom an agency has sent an unsolicited resume.
Equal Opportunity Employer: Race/Color/Sex/Sexual Orientation/Gender Identity/Religion/National Origin/Disability/Vets or any other legally protected status.
Job Description
$5,000 Sign On Bonus Available (For Externals Only)
Clinical Lab Scientist I
Location: San Juan Capistrano, CA
Work Schedule: Tuesday to Saturday, 7:00 AM to 3:30 PM
Department: Microbiology
Pay range: $40.00 - $56.44 / hour
Salary offers are based on a wide range of factors including relevant skills, training, experience, education, and, where applicable, certifications obtained. Market and organizational factors are also considered. Successful candidates may be eligible to receive annual performance bonus compensation.
Benefits Information
We are proud to offer best-in-class benefits and programs to support employees and their families in living healthy, happy lives. Our pay and benefit plans have been designed to promote employee health in all respects – physical, financial, and developmental. Depending on whether it is a part-time or full-time position, some of the benefits offered may include:
- Day 1 Medical, supplemental health, dental & vision for FT employees who work 30+ hours
- Best-in-class well-being programs
- Annual, no-cost health assessment program Blueprint for Wellness®
- healthyMINDS mental health program
- Vacation and Health/Flex Time
- 6 Holidays plus 1 "MyDay" off
- FinFit financial coaching and services
- 401(k) pre-tax and/or Roth IRA with company match up to 5% after 12 months of service
- Employee stock purchase plan
- Life and disability insurance, plus buy-up option
- Flexible Spending Accounts
- Annual incentive plans
- Matching gifts program
- Education assistance through MyQuest for Education
- Career advancement opportunities
- and so much more!
This position is accountable for performing clinical laboratory testing, following all applicable policies and procedures.
Responsibilities
- Independently performs moderate to highly complex clinical tests following the required procedures and policies. Performs newly introduced tests to the laboratory that require defined skills.
- Prepares and oversees the preparation of reagents or media as well as stock solutions, standards, and controls. Tests new reagents or controls and evaluates their usefulness based on standard criteria.
- Determines the acceptability of specimens for testing according to established criteria in testing procedures.
- Determines calculated results utilizing testing data by means of manual or computerized procedures.
- Accurately enters results of testing. Checks the computer review reports to monitor accurate reporting of laboratory results. Adheres to analytical schedules to maintain turnaround times of results.
- Evaluates the acceptability of routine and complex analyses prior to releasing patient reports. Recognizes and takes appropriate action in response to critical values or unusual or unexpected results, and documents action taken.
- Responsible for preventative maintenance, troubleshooting and calibration of laboratory equipment.
- Evaluates the results of instrument performance checks. Performs linearity, accuracy and precision checks as required.
- Performs Quality Control and calibrations with the appropriate frequency and evaluates results, to determine acceptability of result release.
- Selects and evaluates control materials using established criteria. Initiates a corrective action process whenever test systems do not perform according to the established criteria.
- Accurately performs and records proficiency testing.
- Demonstrates the ability to detect and correct technical and operational problems. Notifies the supervisor, and contacts manufacturer or field service support for additional assistance, if necessary.
- Ensures accurate tracking and labeling of reagents and supplies.
- Consistently maintains a safe and neat work area.
- Demonstrates effective two-way communication with staff, immediate manager, suppliers, internal and external customers, via meetings, written and verbal interactions, to create an informed positive environment.
- Actively participates in staff meetings, and in Quality Improvement meetings as assigned.
- Takes on additional business-related responsibilities or projects, as delegated by the Supervisor or Manager. This may include but not be limited to evaluation of new techniques and procedures in terms of personnel and requirements, method comparison, cost analysis, establishment of reference ranges, writing and revising technical procedures, and evaluation of productivity and key results measures.
- Responsible for following all required procedures, practices and related guidelines as provided in company policy and associated procedures for safety, environmental, and infection control.
- Collects and dispose of waste in proper receptacles.
- Demonstrates a high level of integrity and honesty in maintaining confidentiality.
- Provides direct and constant supervision to unlicensed staff as necessary and trains staff in proper performance of both routine and complex procedures. Supports Training Programs, where applicable.
- Maintains professional growth and development through continuing education. The continuing education must meet the education requirements for California state licensure.
- Answers phones, transfers, or takes accurate messages.
- Complies with all health and safety policies, procedures, and practices. Required to use personal protective equipment.
- Other duties as assigned. This is not an exhaustive list of all duties and responsibilities, but rather a general description of work performed by the position.
Qualifications
Required Work Experience
- Zero to three year’s direct experience in a laboratory setting.
Physical And Mental Requirements
- The normal performance of duties may require lifting and carrying objects. Objects in the weight range of 1 to 10 pounds are lifted and carried frequently; objects in the weight range of 11 to 25 pounds are lifted and carried occasionally and objects in the weight range of 26 to 50 pounds are seldom lifted and carried. Objects exceeding 50 pounds are not to be lifted or carried without assistance.
- Ability to perform repetitive tasks. Frequent simple grasping, reaching and fine manipulation.
- Ability to sit and/or stand for long periods.
- Have good eye and hand coordination.
- Testing for color blindness will be required upon hiring or transfer into technical functions requiring detection of, or rating of intensity of colors (e.g., Fluorescent microscopy reading).
Skills
- Proficiency in Microsoft Office Application (Word, Excel, Outlook)
- Strong typing skills desirable.
- Other automation skills helpful.
Education
- Bachelor’s Degree Medical technology or other life or physical sciences from an accredited college or university. (Required)
Licenses and Certifications
- Current State Clinical Laboratory Scientist license if necessary (e.g. California) (Required)
Qualified applicants with arrest or conviction records will be considered for Employment in accordance with the following laws if applicable, the Los Angeles County Fair Chance Ordinance for Employers, the Los Angeles' Fair Chance Initiative for Hiring Ordinance, the San Francisco Fair Chance Ordinance, and the California Fair Chance Act. Quest believes that conviction records may have a direct, adverse, and negative relationship to the following job duties: accessing company property, information, assets, and products including sensitive information; accessing customer data or confidential information, and partnering and regularly working with or supervising other Quest employees and interacting with Quest customers. MLS, Medical Laboratory Scientist, Medical Lab Scientist, Med Tech, Medical Technologist, CLS, Clinical Lab Scientist
About The Team
Quest Diagnostics honors our service members and encourages veterans to apply. While we appreciate and value our staffing partners, we do not accept unsolicited resumes from agencies. Quest will not be responsible for paying agency fees for any individual as to whom an agency has sent an unsolicited resume.
Equal Opportunity Employer: Race/Color/Sex/Sexual Orientation/Gender Identity/Religion/National Origin/Disability/Vets or any other legally protected status.
See all Clinical Assistant Jobs at Quest Diagnostics
Sign up for free to unlock all listings, filter by visa type, and get alerts for new Clinical Assistant Jobs at Quest Diagnostics.
Get Access To All JobsTips for Finding Clinical Assistant Jobs at Quest Diagnostics
Confirm Your Clinical Credentials Before Applying
Quest Diagnostics Clinical Assistant roles typically require phlebotomy certification and, in some states, a medical assistant credential. Verify your certifications are current and state-recognized before submitting applications, since credentialing gaps can stall an H-1B or TN filing mid-process.
Target Patient Service Center Openings Strategically
Quest hires Clinical Assistants at high volume across its patient service center network. Use Migrate Mate to filter open roles by location and visa type so you're applying to sites that are actively sponsoring, not just posting.
Understand How OPT Fits This Role
F-1 OPT is a common entry point for Clinical Assistant roles at Quest. Your OPT employment must directly relate to your degree field, so if your program is in clinical or health sciences, document that connection clearly in your application to satisfy USCIS work authorization requirements.
Ask About LCA Filing Timing During Offer Negotiations
Before your H-1B start date, Quest must file a certified Labor Condition Application with DOL. Ask your recruiter or HR contact when the LCA process typically begins relative to your expected start date so you can plan your OPT or grace period coverage accordingly.
Prepare for PERM If You're Targeting Permanent Residency
Quest sponsors EB-2 and EB-3 Green Cards for Clinical Assistants, but PERM labor certification through DOL requires demonstrating no qualified U.S. workers are available. Be ready to provide detailed employment history and education records early, since PERM documentation requests can surface months into the process.
Align Your Resume to Quest's Clinical Assistant Job Descriptions
Quest's Clinical Assistant postings consistently emphasize specimen collection, patient communication, and compliance with safety protocols. Mirroring that exact language in your resume strengthens your application and helps HR quickly confirm your background supports visa sponsorship for a specialty-specific role.
Frequently Asked Questions
Does Quest Diagnostics sponsor H-1B visas for Clinical Assistants?
Yes, Quest Diagnostics sponsors H-1B visas for Clinical Assistant roles. Because Clinical Assistant positions involve direct patient care and specimen collection tied to specific technical training, they can qualify as specialty occupations under USCIS criteria. Your employer will need to file a certified Labor Condition Application with the DOL before USCIS receives the H-1B petition, so budget time for both steps when planning your start date.
How do I apply for Clinical Assistant jobs at Quest Diagnostics?
Applications go through Quest Diagnostics' careers portal, where you can filter by role and location. Because not every posting explicitly lists visa sponsorship availability, browsing through Migrate Mate lets you identify which Clinical Assistant openings at Quest are open to sponsored candidates before you invest time in a full application.
Which visa types does Quest Diagnostics commonly use for Clinical Assistant roles?
Quest Diagnostics most commonly supports Clinical Assistants through F-1 OPT and CPT while candidates are still in or recently completing health sciences programs, H-1B for longer-term work authorization, and TN visas for Canadian and Mexican nationals in qualifying clinical roles. For candidates pursuing permanent residency, Quest has also sponsored EB-2 and EB-3 Green Cards for this function.
What qualifications does Quest Diagnostics expect for Clinical Assistant roles?
Most Clinical Assistant openings at Quest require phlebotomy certification, a high school diploma or equivalent, and some patient-facing or clinical setting experience. Several state markets also require a medical assistant credential or certification. Candidates applying with an F-1 or H-1B should ensure their degree field in health sciences or a related clinical discipline directly supports the responsibilities listed in the specific job posting.
How long does the visa sponsorship process take for a Clinical Assistant at Quest Diagnostics?
Timeline depends heavily on visa type. F-1 OPT authorization through USCIS can take up to 90 days, so apply early relative to your program end date. H-1B sponsorship requires DOL LCA certification followed by USCIS petition processing, which can take three to six months without premium processing. PERM-based Green Card sponsorship typically runs one to two years before an immigrant visa petition is even filed.