Posted 6 months ago
Psychometrician
@ Vretta Inc.
Toronto, Ontario
Overview
Vretta Inc. is hiring a full-time Psychometrician in its research division to lead test design, item calibration and measurement validity for its assessment tools. The role centres on R-based validation, statistical modelling of educational data and advising colleagues on methods. A post-graduate degree and strong R experience are required.
Responsibilities:
- Validate psychometric audit results and replicate findings
- Develop and maintain R scripts for validation and quality assurance
- Analyze model parameters affecting test precision and validity
- Build data models and advise practitioners on methods
- Track project progress and communicate updates and risks
Requirements summary:
- Experience applying R in a psychometric context
- Post-graduate degree in measurement, evaluation, research methods or data science
- Proven teamwork ability
- Clear communication of technical concepts
- Strong time management with minimal supervision
- High critical and logical thinking
Tools & skills
Source and dates
Source type not verified · risepeople
- Employer posting date
- 2026-04-29
- First seen by our source
- 2026-10-16
- Source record updated
- 2026-10-23
These dates describe the source record, not a live verification that the employer is still hiring. Check the original posting.
Job details
| Seniority | Mid level |
| Department | Software development |
| Hours per week | 40 (estimated) |
| Work setting | Office |
| Position | Mostly sitting |
| Physical demands | physical low · computer high |
| Languages | English |
| Education | Master’s degree (required) |
| Fields of study | Measurement, Evaluation, Research Methodology, Data Science |
Summary and details written by AI from the posting; the employer’s posting is the authority.
Vretta Inc.
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.
Modernizing Assessment and Learning Experiences for Student Success
Full company description
Vretta is a multi-award winning organization that specializes in delivering assessment and learning experiences that support student success at the primary, secondary, and post-secondary educational levels. With over a decade of research and dedication in understanding how students succeed by interacting with rich and engaging technology-enhanced assessments, Vretta specializes in the innovative use of assessments to provide greater equity and strengthen the skills of students. We focus on modernizing assessment and learning solutions through creative design, backed by psychometric precision, delivering reliable, flexible and equitable learning and assessment experiences for students, educators, and administrators.
- LinkedIn followers
- 15,630
- People associated on LinkedIn
- 118
- Reported office locations
- 120 Adelaide St E, Toronto, Ontario, CA
- 20-22 Wenlock Road, City of London, London N1 7GU, GB
- 6, rue Tubis, Luxembourg , Luxembourg L-2629 , LU
- Other recorded names
- Vretta
- Specialties
- e-assessments
- learning
- mathematics
- literacy
- formative assessments
- summative assessments
- diagnostic assessments
- modernization projects
- and numeracy
- Profile identifies a recruitment agency
- No
Vretta is a multi-award winning organization that specializes in delivering assessment and learning experiences that support student success at the primary, secondary, and post-secondary educational levels. With over a decade of research and dedication in understanding how students succeed by interacting with rich and engaging technology-enhanced assessments, Vretta specializes in the innovative use of assessments…
| Field | Value |
|---|---|
| Industry | Education Administration Programs |
| Company size | 51-200 employees |
| Headquarters | Toronto, Ontario |
| Organization type | Privately Held |
| Year founded | 2010 |
| Specialties | e-assessmentslearningmathematicsliteracyformative assessmentssummative assessmentsdiagnostic assessmentsmodernization projectsand numeracy |
| Open jobs on Jobsy | 13 |
| View page |
At Vretta, we are transforming the measurement of learning with intuitive and innovative assessment platforms. Our research division is looking for a Psychometrician to lead test design, item calibration, and measurement validity across our assessment tools. If you are driven by quantitative precision and want to apply statistical models to real-world educational data, you will play a central role in ensuring accurate and fair outcomes for K-12 students and certification bodies.
Responsibilities
Reproduce and validate psychometric audit results using both innovative and standard tools to ensure accuracy and reliability.
Develop and maintain R scripts to automate validation and quality assurance for psychometric instruments built in various languages and software.
Analyze model parameters and data characteristics impacting the precision, validity, and alignment of psychometric algorithms.
Replicate and review psychometric findings to confirm methodological accuracy.
Advise practitioners on best practices, methodologies, and recommended procedures.
Assess engineered options, recommend data models, and define assets to support psychometric applications.
Build and enhance data models for psychometric analysis and reporting.
Perform targeted data analyses to support decisions and project goals.
Collaborate with stakeholders and internal users to manage timelines, resolve technical issues, and ensure smooth infrastructure integration.
Track project progress, ensuring adherence to schedules, and proactively communicate updates and risks.
Brief fellow psychometricians on information requests to promote knowledge sharing and transparency.
Provide daily progress updates for alignment and accountability.
Stay current with research, methodologies, and technological advances in psychometrics to continuously improve tools and practices.
Requirements
Experience in applying the R language in a psychometric context.
Post-Graduate Degree in Measurement, Evaluation, Research Methodology, Data Science or equivalent.
Proven ability to work seamlessly in a team.
Ability to effectively communicate technical concepts to other technical staff members.
Superior time management skills, and the ability to prioritize tasks with minimal supervision.
High level of critical and logical thinking, analysis, and/or reasoning to identify underlying principles, reasons, or facts.
Experience with any of the following is an asset
PARSCALE
R Packages for Item Response Theory Analysis
Python (including the catsim library)
Machine Learning statistical techniques
Cognitive Diagnosis Modelling
Academic Writing
About Vretta
We are a multi-award winning EdTech company that is transforming the way students learn and use math every day. We collaborate with schools, colleges, and ministries around the world to re-imagine what really matters for students in the 21st century and to make sure that every student acquires meaningful quantitative skills that will serve them in their lives and professions. The user experience is at the heart of our creative process. This experience determines what sticks and what fades, and we see this as a tremendous opportunity to do better than anyone that has come before us. Every project is assigned a highly focused team of researchers, educators, designers, and software developers that are passionate about making an impact.
Applying
This posting is for an existing vacancy at Vretta. While we thank all applicants for their interest, only those selected for an interview will be contacted. If you are interviewed for this position, Vretta will provide you with a status update in compliance with the Employment Standards Act. Vretta is committed to providing reasonable accommodations for people with disabilities. If you require an accommodation, we will work with you to meet your needs, in all stages of the hiring process, within reason.
To stay in touch with Vretta and keep up-to-date on all open opportunities, follow us on LinkedIn, Facebook, and Twitter!
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