Member of Technical Staff - Post-training (Data Infrastructure)
United States, CanadaCA$295k - CA$535kFull-timePosted 1w ago
About the role
Member of Technical Staff focused on Post-Training Data Infrastructure, building and owning pipelines to produce post-training data for large language models (SFT, RL data, synthetic and human-annotated data), collaborating with researchers and annotation teams to keep data pipelines in sync with model development.
Responsibilities
- Build and maintain data pipelines for SFT, preference, and RL post-training data.
- Own dataset quality, versioning, and reproducibility.
- Turn research data recipes into production-grade, reusable components.
- Scale model inference for data generation and model-based grading.
- Design data formats and schemas that keep post-training datasets consistent and efficient to train on.
- Collaborate with researchers and engineers to make sure data pipelines keep pace with the needs of cutting-edge language models.
Qualifications
- Strong software engineering skills.
- Experience designing and building large-scale data pipelines for machine learning, ideally for LLM post-training.
- Track record of running distributed data processing and model inference at scale.
- Good understanding of post-training methods (e.g., SFT, RLHF, DPO) and how data shapes model behaviour.
- Excellent communication skills.
Skills
Required:Software engineeringLarge-scale data pipelines for machine learningDistributed data processing and model inference at scalePost-training methods (SFT, RLHF, DPO)Communication
Benefits
- A weekly lunch stipend of $75/£75 or equivalent in your local currency for lunch.
- Full health and dental benefits, including a separate budget for mental health.
- RRSP matching, 401K, Pension Scheme.
- 100% Parental Leave top-up for up to 6 months, for either parent.
- Annual enrichment benefits: Arts & culture, fitness/wellness, quality time, and a workspace improvement credit; Education & learning stipend for conferences, courses, and coaching.
- 6 weeks of paid vacation (30 working days).
- Budget for traveling to other offices if you are remote, plus an annual company offsite.
- $500 home office stipend to set up your workspace.
Last updated Oct 21, 2026. Interested? Apply on the company site.
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