“catalyst systems” jobs in Canada – Page 21

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• 26d

  UI/UX Design Expert - Evaluator

  Toronto, ON

  $80–$150/hr

  

  Mercor

  5+ YOECandidates need 5+ years of professional product design, UI/UX or design systems experience, ideally at a design studio or in-house product team. They must be fluent in interaction and visual design, design systems and responsive layouts, and communicate very clearly in writing.

  UX design, Research, Work independently, Meet deadlines, Graphic design, Communication skills

  26d

  Network Engineer - Data Annotation

  Toronto, ON

  $50–$70/hr

  

  Mercor

  Candidates need Level 3 or principal support engineering experience with on-call rotations and root cause analyses, plus hands-on enterprise network work with switches, access points and firewalls. Wireless expertise (Cisco WLC, Aruba, Meraki, 802.1X/RADIUS) and packet-level troubleshooting skills are required.

  Cisco WLC, Aruba, Meraki, Wireshark, tcpdump

  26d

  Higher Education Specialist - Senior Level

  Toronto, ON

  $60–$70/hr

  

  Mercor

  5+ YOECandidates need 5+ years in faculty, academic administration, or senior higher education operations, with direct ownership of academic programs or enrollment initiatives. Fluency in higher education tools, budgets, accreditation, and governance is required; rubric or curriculum authorship is preferred.

  Banner, Workday Student, Canvas, Blackboard, Cayuse, InfoEd

  26d

  Fraud Detection Specialist - Enterprise

  Toronto, ON

  $60–$70/hr

  

  Mercor

  5+ YOECandidates need 5+ years in fraud detection, financial crimes investigation or AML compliance at a Fortune 500 bank or financial institution. They must have owned enterprise fraud programs or transaction monitoring systems and know enterprise fraud tooling.

  SAS Fraud Management, Actimize, Feedzai

  26d

  LLM Agent Engineer - Specialist

  Toronto, ON

  $100–$500/hr

  

  Mercor

  Candidates need proven experience building and operating LLM agents and a track record of improving their reliability and performance. Strong independent, asynchronous work habits are expected.

  Research, Work independently

  26d

  Canadian French Voice Actor - TTS

  Toronto, ON

  $50/hr

  

  Mercor

  Candidates need to be native Canadian French speakers based in Canada with a neutral international French accent and a clear, expressive voice. They need a professional or near-professional recording setup and reliable availability for 5 to 10 hours a week.

  Audacity, Adobe Audition, Reaper, microphone

  26d

  Voice Recording Specialist - Fully Remote | Upto $100/hr

  Toronto, ON

  $50–$100/hr

  

  Mercor

  Candidates need native or native-level standard French with a neutral accent and a clear, expressive voice. They need a professional or near-professional recording setup and reliable availability for 5 to 10 hours per week.

  Audacity, Adobe Audition, Reaper

  26d

  Clinical Social Worker - Fully Remote | Upto $50/hr

  Toronto, ON

  $40–$50/hr

  

  Mercor

  5+ YOEMercor needs candidates with 5+ years as an LCSW, LMSW or senior case manager, direct caseload ownership, and fluency in practice standards and case management tools. Prior rubric or curriculum authorship is a plus.

  EHR systems, CCWIS, Risk and needs assessment instruments, Interagency referral platforms

  26d

  Insurance Risk Expert - Fully Remote | Upto $60/hr

  Toronto, ON

  $50–$60/hr

  

  Mercor

  5+ YOECandidates need 5+ years in underwriting, claims, actuarial or risk management at a Fortune 500 insurer or reinsurer. They must have direct ownership of large-scale portfolios or pricing models and fluency in enterprise insurance tools and regulatory practice.

  Guidewire, Duck Creek, SAS, R

  26d

  Social Work Expert - Scenario Designer

  Toronto, ON

  $40–$50/hr

  

  Mercor

  5+ YOECandidates need 5+ years as an LCSW, LMSW or senior case manager in a hospital, child welfare, behavioral health or nonprofit setting. Mercor also wants hands-on ownership of caseloads and fluency in mandated reporting and interagency coordination.

  EHR systems, CCWIS

  26d

  IT Consulting Expert - F500 Projects

  Toronto, ON

  $70–$80/hr

  

  Mercor

  5+ YOECandidates need 5+ years in IT consulting, systems integration or managed services at a Fortune 500 firm or inside an F500 IT organization. They must have directly owned F500 engagements or transformation programs and understand how large-company budgets and SOW reviews work.

  Jira, Confluence, ServiceNow, SAP, Salesforce

  26d

  Fraud Detection Expert - Fully Remote | Upto $70/hr

  Toronto, ON

  $60–$70/hr

  

  Mercor

  5+ YOECandidates need 5+ years in fraud detection, financial crimes investigation or AML compliance at a Fortune 500 bank. They must have owned large fraud programs or transaction monitoring systems and know enterprise fraud tools.

  SAS Fraud Management, Actimize, Feedzai

  26d

  Search Optimization Specialist - Fully Remote | Upto $150/task Task based

  Toronto, ON

  $80–$150/hr

  

  Mercor

  Candidates need experience with production search systems and agentic search, a proven record owning relevance or retrieval on user-facing systems, and strong skills in quantifying system improvements.

  Research, Work independently

  26d

  AI Safety Expert - Red Teaming

  Toronto, ON

  $48–$62/hr

  

  Mercor

  Candidates need fluency in English and Swedish, prior red teaming experience in AI adversarial work, cybersecurity or socio-technical probing, and strong communication skills for technical and non-technical audiences.

  Research, Work independently, Meet deadlines, Cybersecurity, Communication skills, ML

  26d

  Legal Expert - AI Collaboration

  Toronto, ON

  $90–$150/hr

  

  Mercor

  4+ YOECandidates need at least 4 years of professional legal experience and excellent written communication, with strong grammar and spelling. Applicants complete a resume upload and an AI interview.

  Collaboration, Research, Work independently, Meet deadlines, Communication skills

  26d

  AI Safety Expert - Red Team

  Toronto, ON

  $20–$22/hr

  

  Mercor

  Candidates need fluency in English and Odia and prior red teaming experience in AI adversarial work, cybersecurity or socio-technical probing. Mercor also needs strong communication skills to explain risks to technical and non-technical audiences.

  Research, Cybersecurity, Communication skills, ML, Penetration testing, Reverse engineering

  26d

  Machine Learning Engineer - Fully Remote | Upto $85/hr

  Toronto, ON

  $85/hr

  

  Mercor

  2+ YOECandidates need 2+ years of professional machine learning engineering experience, including production ML systems or LLM applications. They must regularly use AI coding agents such as Cursor or Claude Code and judge the quality of model-generated ML work.

  Cursor, Claude Code, Codex, Windsurf, Gemini CLI

  26d

  Computational Statistics Expert - PhD

  Toronto, ON

  $70–$90/hr

  

  Mercor

  Candidates need graduate-level training in statistics, applied mathematics or a related STEM field, proven skill with at least one specialized scientific software package, and strong Python. They must work independently and be available 15 to 20 hours per week.

  R, Python, Matlab, Scilab, Linux terminal

  26d

  AI Safety Specialist - Fully Remote | Upto $22/hr

  Toronto, ON

  $20–$22/hr

  

  Mercor

  Candidates need fluency in English and Assamese, prior experience in red teaming, AI adversarial work or cybersecurity, and strong communication skills. Experience with adversarial ML and socio-technical risk analysis is preferred.

  Research, Work independently, Meet deadlines, Cybersecurity, Communication skills, ML

  26d

  Analytics Leader - Fully Remote | Upto $70/hr

  Toronto, ON

  $60–$70/hr

  

  Mercor

  5+ YOECandidates need 5+ years as a data scientist, analytics leader or ML engineer at a Fortune 500 or enterprise organization. They also need direct ownership of production data products or ML systems, and fluency in enterprise data science tools and governance.

  Snowflake, Databricks, Python, R, SQL, Tableau

  26d

  AI Safety Expert - Red Team

  Toronto, ON

  $20–$22/hr

  

  Mercor

  Candidates need native fluency in English and Punjabi and prior red teaming experience in AI adversarial work, cybersecurity or socio-technical probing. They must explain risks clearly to both technical and non-technical stakeholders.

  Research, Work independently, Meet deadlines, Cybersecurity, ML

  26d

  AI Safety Expert - Red Teamer

  Toronto, ON

  $20–$22/hr

  

  Mercor

  Candidates need fluency in English and Bengali and prior red teaming experience in AI adversarial work, cybersecurity or socio-technical probing. Communicating risk clearly to varied audiences is also required, and adversarial ML or creative probing skills are preferred.

  Research, Cybersecurity, ML

  26d

  AI Safety Specialist - Fully Remote | Upto $22/hr

  Toronto, ON

  $20–$22/hr

  

  Mercor

  Mercor needs candidates fluent in English and Bengali with prior red teaming experience in AI adversarial work, cybersecurity or socio-technical probing. They must explain risks clearly to both technical and non-technical people.

  Research, Cybersecurity, ML

  26d

  Sales Specialist - Fully Remote | Upto $1500/task Task based

  Toronto, ON

  

  Mercor

  4+ YOEMercor needs candidates with at least 4 years of professional experience in their field and a minimum of 20 hours per week of availability. Candidates complete an application with a resume upload, an AI interview based on the resume, and a form submission.

  Sales, Research, Work independently, Meet deadlines

1 companies