Applied AI Engineer: Build Scalable AI Systems

United States Digital Space LLC; Greater London; On-site; GBP 151,000 - 226,000; Full time

Benefits offered by this job

Discretionary bonuses

Competitive benefits

Job summary

Hudson River Trading (HRT) is seeking an Applied AI engineer to help scale AI systems across research and production. You will build infrastructure for training, evaluating, and operating language models and agents, collaborating with researchers and engineers to push capabilities and safety.

The role emphasizes rigorous measurement, experimentation, and the ability to move between research and production. You will influence tool design, policy safeguards, and the integration of new models into

Qualifications

• Bachelor's degree in CS/Engineering or equivalent practical experience.
• Strong Python proficiency required.
• Experience building and operating substantial software systems.
• Demonstrated engagement with modern AI systems, tools, or research.

Responsibilities

• Building scalable infrastructure for training, evaluating, and operating language models and AI agents.
• Developing research environments, evaluation systems, and experimentation platforms that allow us to measure and improve agent performance.
• Improving model and agent capabilities through post-training, reinforcement learning, prompting, tool design, and workflow optimization.
• Designing sandboxing, policy enforcement, monitoring, and other safeguards for increasingly capable autonomous systems.
• Partnering with teams across HRT to identify work AI can newly perform, develop effective solutions, and turn successful experiments into durable systems.
• Evaluating new models, techniques, and products, and making informed decisions about when to build, buy, or adapt them.
• Sharing technical knowledge and establishing effective practices for building and working with AI across HRT

Skills

Python proficiency

Software design

Problem solving

Linux

C++

TypeScript

Education

BSc in CS/Engineering

Tools

Model serving

Reinforcement learning tools

Job description

Hudson River Trading (HRT) is seeking an Applied AI engineer to help scale AI systems across research and production. You will build infrastructure for training, evaluating, and operating language models and agents, collaborating with researchers and engineers to push capabilities and safety.

The role emphasizes rigorous measurement, experimentation, and the ability to move between research and production. You will influence tool design, policy safeguards, and the integration of new models into