Apply now

First seen by our source: 21 days ago

Toxicological Chemist - Fully Remote | Upto $75/task Task based

@ Mercor

Toronto, Ontario

Apply now
SIGNALS

Overview

Mercor is hiring a remote Forensic / Toxicological Chemist on a contract, task-based basis at $65 to $75 per task. The work involves writing chemistry and chemical safety prompts labelled benign, dual-use or adversarial, and judging AI model responses against a policy standard. Work is independent and asynchronous, with weekly payment via Stripe Connect.

Responsibilities:

  • Write single-turn chemistry and chemical safety prompts labelled benign, dual-use or adversarial
  • Evaluate model responses against a defined policy standard
  • Write reference answers with technical reasoning
  • Collaborate with experts on routine versus dangerous query boundaries

Requirements summary:

  • Controlled substance casework in a forensic laboratory
  • Clandestine laboratory response and precursor identification
  • Forensic toxicology, postmortem or human performance casework
  • Seized-drug and precursor trend monitoring or intelligence analysis
  • Strong technical writing, published research or expert witness experience

Tools & skills

Source and dates

Source type not verified · manatal

Employer posting date
Not provided
First seen by our source
2026-10-16
Source record updated
2026-10-16

These dates describe the source record, not a live verification that the employer is still hiring. Check the original posting.

Job details

SenioritySenior
Travelair: none · ground: none
Work settingHome
PositionMostly sitting
Physical demandsphysical low · computer high
LanguagesEnglish

Summary and details written by AI from the posting; the employer’s posting is the authority.

Mercor

Saved company profile

Historical company information from a saved The Jobs API profile (LinkedIn/Crunchbase fields). It is not live-verified; figures may have changed. Missing values remain unknown.

We connect human expertise with leading AI labs and enterprises to train frontier models.

Full company description

Mercor is defining the future of work. We connect human expertise with leading AI labs and enterprises to train frontier models.

LinkedIn followers
654,507
People associated on LinkedIn
5,250
Reported office locations
  • San Francisco, California 94105, US
Business categories
  • Employment
  • Software
  • Recruiting
  • Data Collection and Labeling
  • Artificial Intelligence (AI)
  • Machine Learning
Other recorded names
  • Mercor
Profile identifies a recruitment agency
Yes
Reported total investment
483,600,000

Currency and observation date were not supplied; this is not a current valuation or a funding round.

Mercor is defining the future of work. We connect human expertise with leading AI labs and enterprises to train frontier models.

FieldValue
IndustrySoftware Development
Company size51-200 employees
HeadquartersSan Francisco, California
Organization typePrivately Held
Year founded2023
Open jobs on Jobsy1,626
LinkedInView page
Job description

About the job

Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark, General Catalyst, Peter Thiel, Adam D'Angelo, Larry Summers, and Jack Dorsey.

Position: Forensic / Toxicological Chemist
Type: Contract
Compensation: $65–$75 per task
Location: Remote

Role Responsibilities

  • Write challenging single-turn prompts in chemistry and chemical safety, labeled as benign, dual-use, or adversarial.
  • Evaluate model responses against a defined policy standard and judge correctness.
  • Write reference answers with technical reasoning for correct responses.
  • Collaborate with experts to ensure models draw reliable lines between routine and dangerous queries.
  • Work independently and asynchronously to meet deadlines and improve AI model performance.

Qualifications

Must-Have

  • Experience in controlled substance casework in a forensic laboratory.
  • Background in clandestine laboratory response and precursor identification.
  • Expertise in forensic toxicology, postmortem, or human performance casework.
  • Experience in seized-drug and precursor trend monitoring or intelligence analysis.
  • Strong technical writing, published research, or expert witness experience.

Compensation & Legal

  • Hourly contractor
  • Paid weekly via Stripe Connect

Application Process (Takes 20–30 mins to complete)

  • Upload resume
  • AI interview based on your resume
  • Submit form

Resources & Support

  • For details about the interview process and platform information, please check: https://talent.docs.mercor.com/welcome
  • For any help or support, reach out to: [email protected]

PS: Our team reviews applications daily. Please complete your AI interview and application steps to be considered for this opportunity.

Similar jobs

  • Lead Developer - (Java / AWS / Payment Systems)

    Toronto, ON
    Full Time

    Bank of Montreal

    Drives the overall software development lifecycle including working across functional teams to transform requirements into features, managing development teams and processes, and…; Specific project areas of focus…

    Oracle Java, AWS, Programming languages, Amazon DynamoDB, Node.js, Business analysis

  • Canada Renewable Energy Engineering Leader

    Toronto, ON

    Arup

    While broad capability across renewable technologies is essential, strong experience delivering owner’s engineer and/or detailed design for renewable energy projects is a core requirement,…; Bachelor’s degree in…

  • Account Executive

    Toronto, ON
    $80k–$100k/yrFull Time

    Gather Packaging

    3+ YOE3 to 5 years of experience in sales, account management or project management; Experience with retail, packaging, promotional products, logistics or related industries is an asset; A track record of winning new…

    Packaging, Sales, Research, Presentation skills, Logistics, Customer service

  • Uniform Patrol Security Guards - Downtown, Toronto

    Toronto, ON
    $18.21–$20.37/hrFull Time

    Securiguard

    1 year of security experience, w/ preferably in Healthcare/Respite Shelters, Corporate/Commerical, Mall/Retail, Campus, Gov't sites, Distribution Centre, and/or a diploma in the field of…; Valid Ontario Security…

  • Manager, Business Tax - Toronto

    Toronto, ON

    Deloitte

    Our approach combines insight and innovation from multiple disciplines with business and industry knowledge to help companies excel globally; You are someone with:; Undergraduate degree; accounting designation is an…

    Senior Analyst, Business Tax - Toronto

    Toronto, ON

    Deloitte

    2+ YOEOur approach combines insight and innovation from multiple disciplines with business and industry knowledge to help our clients excel globally; You are someone with:; Bachelor’s degree in accounting, law or another…

    Tax legislation, Regulatory compliance, Leadership, Taxation, Communication skills, Communicate with customers

    Senior Manager, Business Tax - Toronto

    Toronto, ON

    Deloitte

    Our approach combines insight and innovation from multiple disciplines with business and industry knowledge to help companies excel globally; You are someone with:; Undergraduate degree; accounting designation is an…

  • Key Holder - Le Labo - Seasonal FT Temp - Hazelton, ON

    Toronto, ON

    ELC Beauty LLC: The company’s products are sold in approximately 150 countries and territories under brand names including: Estée Lauder, Aramis, Clinique, Lab…

    You will also use your flair for retail and cash handling experience to carry out essential start and end of day cash reconciliation as will also have responsibility for opening and…; If you are an ambitious…

Locations & environments

Locations

All of CanadaRemote · Hybrid · On-site · Field

Pro tip: add remote jobs to widen your search.

Exclude locations

Workplace type

Company jobs in these results

These are this company’s jobs loaded in your current search. The company may have more openings.