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Laboratory Assistant

Karius·Redwood City, California

$21 - $32/hr·Full Time·On Site·0-2 yrs·Posted 1 month ago
Practice for this role

About the role

The Laboratory Assistant is responsible for receiving, accessioning, and preparing patient specimens while maintaining laboratory equipment and stock levels. They support regulatory compliance by adhering to SOPs and documenting all laboratory activities accurately.

About Karius

Karius is a life science, venture-backed clinical metagenomics company, focused on elevating patient care through microbial insights. We are committed to advancing diagnostic science and technology to optimize the diagnosis and treatment of infectious diseases. Through the use of genomics and AI, we are driven to improve the diagnostic landscape for infectious diseases. Karius delivers unprecedented diagnostic insight detecting microbial cell-free DNA circulating in the body to assist physicians to make rapid treatment decisions.

Position Summary

The Laboratory Assistant (LA) is an enthusiastic, self-motivated individual with great communication skills. Along with the duties described below, this individual performs sample receiving and accessioning, performs routine preventive equipment and instrument maintenance, and assists in the performance of high complexity laboratory testing on patient specimens under the direct supervision of a CLS. The LA must demonstrate a high level of individual responsibility and accountability and possess the ability to perform to the requirements listed below. The LA must be comfortable in a rapidly evolving biotech start-up environment.

Shift

  • Tuesday to
  • Saturday, 7:00 am to 3:30 pm

Why Should You Join Us?

Karius aims to conquer infectious diseases through innovations around genomic sequencing and machine learning.

The company’s platform is already delivering unprecedented insights into the microbial landscape, providing clinicians with a comprehensive test capable of identifying more than a thousand pathogens directly from blood, and helping industry accelerate the development of therapeutic solutions.

The products Karius offers today are some of the most advanced solutions available to physicians who aim to deliver better care to many otherwise ineffectively treated patients.

Our tests are the result of some incredible work done by our scientists, statisticians, engineers, and physicians, all driven by the same mission.

You, as part of the Karius team, will be able to see how directly your work has a life-changing impact on people, and at scale.

Reports to

Sr. Manager, Clinical Laboratory Operations

Location: Redwood City, CA

Primary Responsibilities

  • Under direct supervision of licensed personnel, perform selected specimen preparation and similar tasks as determined by laboratory management.
  • Receive, unbox and accession inbound biological samples per relevant SOPs; collaborate with the customer support team to obtain information necessary to complete the accessioning process.
  • Receive, catalog, and label incoming shipments of materials and reagents in accordance with established procedures and handling requirements; communicate receipt of critical materials or reagents to appropriate laboratory personnel in accordance with established procedures.
  • Maintain in-lab stocking levels to support day-to-day laboratory operations, including processing newly received materials upon arrival and maintaining appropriate storage conditions.
  • Perform and document routine equipment and laboratory maintenance, including cleaning activities, per established schedules; communicate observed issues to supervisory or laboratory leadership personnel.
  • Support regulatory compliance through adherence to laboratory policies and procedures, and accurately document work performed.
  • Update laboratory SOPs as directed.
  • Identify and escalate process improvement opportunities as appropriate.
  • Perform additional duties as assigned by supervisory or laboratory leadership personnel.

What’s Fun About the Job?

Karius is operating at the edge of what is now known to be possible in diagnostics. With that, comes a wave of new and incredible challenges and opportunities. To deliver on that value, you will be tapping into some of the most advanced technologies, architecting and innovating where the current solutions simply don't suffice. You will get to see how much your work really matters.

Travel: No travel required

Physical Requirements

  • Hours and days may vary depending on operational needs
  • Standing or sitting for long periods of time may be necessary.
  • May be exposed to hazardous materials, blood specimens and instruments with moving parts, heating or freezing elements, and high speed centrifugation
  • Repetitive manual pipetting may be necessary
  • Some lifting (up to 25 pounds) may be necessary

Position Requirements

  • High school diploma or equivalent, as determined by HCFA under CLIA. 0-2 years of clinical and industry experience.
  • BA/BS in In a biological science or similar field of study, preferred. No experience required.

Personal Qualifications

  • Demonstrates personal accountability for assigned work, consistently delivering results with quality, consistency, and attention to detail.
  • Recognizes, communicates, and escalates issues, risks, or deviations in a timely and transparent manner.
  • Adapts effectively to changing priorities and operational demands in a dynamic laboratory environment.
  • Demonstrates curiosity and learning agility, remaining open to feedback, coaching, and continuous skill development.
  • Maintains a collaborative, respectful, and team-oriented approach to daily operations.

Disclaimer

The above job description is intended to describe the general nature and level of work being performed by individuals assigned to this position. It is not intended to be an exhaustive list of all duties, responsibilities, and skills required. Responsibilities and duties may change or be adjusted to meet the needs of the company, and additional duties may be assigned as necessary. The job description is subject to change at any time at the discretion of Karius.

At Karius, we value a diverse and inclusive workplace and provide equal employment opportunities for all applicants and employees and are committed to honor and invest in the full diversity of people, in our hiring, recruiting and development of employees across the Company. All qualified applicants for employment are encouraged to apply and will be considered without regard to an individual’s race, color, sex, gender identity and gender expression (including transgender individuals who are transitioning, have transitioned, or are perceived to be transitioning to the gender with which they identify), religion, age, national origin or ancestry, citizenship, physical or mental disability, medical condition, family care status, marital status, domestic partner status, sexual orientation, genetic information, military or veteran status, or any other basis protected by federal, state or local laws. If you are unable to submit your application due to a disability, please contact us at recruiting@kariusdx.com and we will accommodate qualified individuals with disabilities.

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\n $21.40 - $32.10 an hour \n

Posting details

Employment type
Full Time
Work arrangement
On Site
Experience
0-2 yrs
Salary
$21 - $32/hr
Location
Redwood City, California
Posted
Jun 16, 2026
Application
Employer website
Karius logo

Hiring organization

Karius

Karius sees a world where infectious disease is no longer a major threat to human health. We are a clinical metagenomics company focused on elevating patient care through microbial insights. By leveraging the power of clinical metagenomics, our vision is to create a world where...

Salary listed on 1 job
IndustryBiotechnology Research
TypePrivately Held
Size51-200 employees
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Market context

California lab assistant roles stay steady

In California, Laboratory Assistant openings are often tied to hospitals, clinics, and diagnostic labs that need reliable support for specimen handling and routine testing. Competition can be stronger when employers prefer science or health degrees and require BLS, IATA, and flexible shift availability. Review the AI-summarized requirements and benefits here to save time, then confirm your certification status and highlight any health service experience in your application.

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