Member of Technical Staff, Senior/Staff MLE

Stack

Responsibilities

• ▹Lead the design and delivery of custom LLM solutions for enterprise customers
• ▹Translate ambiguous business problems into well-framed ML problems with clear success criteria
• ▹Build custom models using Cohere's foundation model stack, CPT recipes and post-training pipelines (including RLVR)
• ▹Develop state-of-the-art modeling techniques and contribute improvements back to the foundation model stack
• ▹Work closely with enterprise customers to identify high-value LLM opportunities, providing technical leadership across discovery, scoping, modeling, deployment and post-deployment iteration
• ▹Establish evaluation frameworks and success metrics for custom modeling engagements
• ▹Mentor engineers across distributed teams and raise engineering and modeling quality across the organization

Requirements

• ▹Strong ML fundamentals and the ability to frame ambiguous problems as ML solutions
• ▹Fluency with Python and core ML/LLM frameworks
• ▹Experience working with large-scale datasets and distributed training or inference pipelines
• ▹Understanding of LLM architectures, tuning techniques (CPT, post-training) and evaluation methodologies
• ▹Demonstrated ability to meaningfully shape LLM performance
• ▹Experience engaging directly with customers or stakeholders to design and deliver ML-powered solutions
• ▹A track record of technical leadership at a team level

Soft skills

What we offer

• ▹Weekly lunch stipend ($75/£75 or equivalent in local currency)
• ▹Full health and dental benefits, including a separate mental health budget
• ▹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, workspace improvement)
• ▹Education and learning stipend for conferences and courses
• ▹6 weeks of paid vacation (30 working days)
• ▹Travel budget to other offices for remote employees, plus an annual company offsite
• ▹$500 home office stipend

About the company

Cohere is a leading security-first enterprise AI company building cutting-edge foundation AI models and end-to-end products that solve real-world business problems for enterprises building AI systems. The team spans researchers, engineers and designers, co-headquartered in Toronto and San Francisco, with offices in London, New York City, Montreal, Seoul, Germany and Paris.