Member of Technical Staff - Post-training (Data Infrastructure)
Cohere · United States
About this role
## Who are we? Cohere is the leading security-first enterprise AI company. We build cutting-edge foundation AI models and end-to-end products designed to solve real-world business problems. We’re training and deploying frontier models for enterprises building AI systems. ## Role Overview As a **Member of Technical Staff (Post-Training — Data Infrastructure)**, you will build and own the pipelines that produce **post-training data** for our large language models (LLMs)—from **SFT and RL data** to **synthetic** and **human-annotated** data. You’ll work closely with researchers and annotation teams so they can iterate on data as quickly as they iterate on models. ## Key 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** to keep post-training datasets consistent and efficient to train on - Collaborate with researchers and engineers to ensure pipelines keep pace with cutting-edge language model needs ## 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 behavior - Excellent communication skills *This is neither an exhaustive nor necessary set of attributes. If you believe you can contribute to Cohere, we encourage you to apply.* ## Perks (Full-Time Employees) - Weekly lunch stipend: **$75/£75** (or equivalent) - 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 (either parent) - Annual enrichment benefits (arts & culture, fitness/wellness, quality time, workspace improvement credit) - Education & learning stipend for conferences, courses, and coaching - **6 weeks paid vacation** (30 working days!) - Budget for travel to other offices if remote, plus an annual company offsite ## How and Where We Work - **Remote-friendly**, with offices in: Toronto, London, New York City, San Francisco, Montreal, Paris, Berlin, and Seoul (more opening soon) - Office support: daily lunch program, snacks, and community/social events - Remote support: co-working benefit and a **$500 home office stipend** ## Equal Opportunity & Accommodations Cohere is committed to an inclusive work environment and equal opportunities. If you need accommodations during the recruitment process, submit an Accommodations Request Form: https://docs.google.com/forms/d/12a6IrLdF3kI2nonKSr4tiFuz18rLQbaeYV-JM9L4o9Q/edit ## Scam Warning Cohere will never ask for payment or third-party services (e.g., CV writing). Legitimate roles are listed on the Cohere careers page and LinkedIn only. Verify roles via: https://cohere.com/careers
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