AI Researcher, LLMs

Location: London, United Kingdom, or New York, NY, United States

Salary: $200,000–$300,000 base per year, plus discretionary performance-based bonuses and benefits

Company

hirify.global applies scientific research and sophisticated computing infrastructure to algorithmic trading.

What you will do

• Develop and maintain large language models used across research, engineering, and trading workflows.
• Work across tokenizer training, dataset curation and mixing, pretraining, post-training, evaluation, inference, and live trading.
• Design research directions, ablations, and evaluations that produce frontier capability gains.
• Analyze evidence and statistical results to guide model development decisions.
• Ship production code with support from engineering, hardware, and systems teams.

Requirements

• At least two years of hands-on experience training, post-training, or evaluating LLMs at scale.
• Direct experience with large-scale pretraining, post-training such as SFT or RL, LLM evaluation design and statistical analysis, or distributed training and inference systems.
• Ability to identify valuable research directions, design decision-changing ablations, and update conclusions based on evidence.
• Strong engineering skills in areas such as GPU kernel development, lower-level PyTorch internals, or published frontier-style LLM research.

Culture & Benefits

• Work in a small, focused team with substantial independence and minimal bureaucracy.
• Access state-of-the-art research clusters with a high GPU-to-researcher ratio.
• Collaborate with experienced engineering, hardware, and systems teams.
• Receive a competitive benefits package and eligibility for discretionary performance-based bonuses.
• Join an open, transparent, and diverse environment focused on cutting-edge automation and algorithmic trading.