QA Engineer - Browser Test Specialist
Toronto, ONMercor
3+ YOECandidates need 3+ years in software engineering, QA, SDET or test automation, with strong experience testing modern web apps and automated UI and end-to-end tests. Strong debugging skills and familiarity with browser automation tools are required.
Playwright, Cypress, Selenium
Technical Sales Consultant - Fully Remote | Upto $150/hr
Toronto, ONMercor
4+ YOECandidates need 4+ years as a Sales Engineer, Solutions Engineer or similar pre-sales role, with hands-on experience in technically complex B2B software. Exceptionally strong written communication and detail-oriented, calibration-friendly judgment are also required.
Sales, Research, Cybersecurity, Communication skills
Software Tester - Fully Remote | Upto $60/hr
Toronto, ONMercor
3+ YOECandidates need 3+ years in software engineering, QA, SDET or test automation. They must have hands-on experience with browser automation tools such as Playwright, Cypress or Selenium, and strong debugging skills.
Playwright, Cypress, Selenium
Search Systems Engineer - Expert
Toronto, ONMercor
Candidates need experience shipping production search systems, ownership of relevance or retrieval for real users, and experience building agentic search systems and scaling search data infrastructure. They must also measure impact clearly.
Research, Work independently, Meet deadlines
Search Systems Engineer - Fully Remote | Upto $150/hr
Toronto, ONMercor
Candidates need experience shipping production search systems, owning relevance or retrieval for real users, and building agentic search. They must also have scaled data infrastructure and be able to quantify search improvements.
Research, Work independently, Meet deadlines
Search Systems Engineer - Fully Remote
Toronto, ONMercor
Candidates need experience shipping production search systems and owning relevance or retrieval for real users. They also need to quantify search improvements, build agentic search systems, and scale search data infrastructure.
Research, Work independently, Meet deadlines
Sales Engineering Expert - Evaluator
Toronto, ONMercor
4+ YOECandidates need 4+ years as a Sales Engineer, Solutions Engineer or similar, with strong pre-sales skills and hands-on experience with complex B2B software. Excellent written communication and comfort with calibrated review are also required.
Sales, Research, Cybersecurity, Communication skills
CAD Software Expert - Annotator
Toronto, ONMercor
Candidates need professional, hands-on experience with CAD tools such as AutoCAD, SolidWorks, Fusion 360, CATIA, Revit or Siemens NX. They must follow precise guidelines, write clear English and have reliable access to CAD software.
AutoCAD, SolidWorks, Fusion 360, CATIA, Revit, Siemens NX
Sales Engineering Expert - Evaluator
Toronto, ONMercor
4+ YOECandidates need 4+ years as a Sales Engineer, Solutions Engineer or similar pre-sales role, with hands-on experience with complex B2B software. Strong written communication and openness to having their judgment reviewed are essential.
Sales, Research, Cybersecurity, Communication skills
Search Optimization Specialist - Fully Remote | Upto $150/task Task based
Toronto, ONMercor
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
Computational Statistics Expert - PhD
Toronto, ONMercor
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
Applied Mathematics Specialist - Fully Remote | Upto $90/hr
Toronto, ONMercor
Candidates need graduate-level training in statistics, applied mathematics or a related STEM field, plus proven skill with a specialized statistical or scientific software package and strong Python. They must work independently and be available 15–20 hours per week.
Python, R, Matlab, Scilab, Linux terminal
Technical Sales Consultant - Fully Remote | Upto $150/hr
Toronto, ONMercor
4+ YOEMercor needs candidates with 4+ years in sales engineering, solutions engineering or pre-sales on B2B software such as SaaS, cloud, cybersecurity or data platforms. Strong written communication and detail-oriented, reviewable judgment are required.
Sales, Research, Cybersecurity, Communication skills
TTS Audio Specialist - Fully Remote | Upto $50/hr
Toronto, ONMercor
Candidates need to be native or near-native French speakers with hands-on audio editing experience, ideally with iZotope RX or Pro Tools. Experience with high-volume audio datasets is required.
iZotope RX, Pro Tools
Mathematics PhD - AI Evaluation Expert
Toronto, ONMercor
Candidates need a PhD in mathematics or a closely related field, depth in at least two subdomains such as numerical linear algebra, and working proficiency in Python. Git/GitHub and Docker are also required.
Python, Git, GitHub, Docker
French Speech Audio Engineer
Toronto, ONMercor
Candidates need native or near-native French, experience editing speech recordings, and hands-on skill with iZotope RX, Pro Tools or similar software. Strong audio quality standards knowledge and experience with high-volume datasets are also required.
iZotope RX, Pro Tools
Search Systems Engineer - Expert
Toronto, ONMercor
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 measuring system impact and improvements.
Research, Work independently
Biology PhD - Scientific Coder
Toronto, ONMercor
Candidates need a PhD in biology or a closely related field, depth in at least two subdomains such as ecology, biochemistry or genetics, and proficiency in Python or R. Familiarity with Git/GitHub and Docker is required, and peer-reviewed publications are preferred.
Python, R, Git, GitHub, Docker, Kaggle
CAD Engineer - Fully Remote | Upto $90/hr
Toronto, ONMercor
Candidates need hands-on professional experience with CAD software such as AutoCAD, SolidWorks, Fusion 360, CATIA, Revit or Siemens NX. They also need strong written English, attention to detail, and reliable access to CAD software.
AutoCAD, SolidWorks, Fusion 360, CATIA, Revit, Siemens NX
Computational Statistics Expert - PhD
Toronto, ONMercor
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
Computational Mathematician - Fully Remote | Upto $70/hr
Toronto, ONMercor
Candidates need a PhD in mathematics or a closely related field and depth in at least two subdomains such as numerical linear algebra, computational mechanics, or computational finance. Working Python for scientific computing, Git/GitHub, and Docker are also required.
Python, Git, GitHub, Docker
Biochemistry Expert - Fully Remote | Upto $70/hr
Toronto, ONMercor
Candidates need a PhD in biology or a closely related field, depth in at least two of ecology, biochemistry and genetics, and proficiency in Python or R. Familiarity with Git, GitHub and Docker is also required.
Python, R, Git, GitHub, Docker
Backend Software Engineer - Python
Toronto, ONMercor
Candidates need strong Python skills, experience with APIs and backend systems, and familiarity with Docker, Linux and configuration files. Mercor prefers experience with FastMCP or similar frameworks and third-party developer tools.
Python, FastMCP, Docker, Linux, RL Studio