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AI Engineer at Radix Trading Experienced Job Board (Chicago, IL / New York, NY)

Radix Trading Experienced Job Board· Chicago, IL / New York, NY·

Job description

As a Quantitative Technologist, your goal is to enhance live trading systems, research infrastructure, and alpha generation through technology innovation.

We leverage cutting-edge software and hardware (mostly with modern C++) to push production level code daily and evolve fully-automated strategies, alpha generation processes, live trading systems, and machine learning research and simulation infrastructure used to analyze petabytes of data.

The Role

  • Build and accelerate the firmwide AI ecosystem and infrastructure to support AI-native systems and tooling
  • Identify workflow opportunities for developers and researchers to introduce AI-first systems and automation
  • Design, deploy, and evaluate production-grade AI applications and advanced agentic workflows (utilizing RAG, semantic search, planning, and structured outputs)
  • Develop platform-level safeguards, including bespoke evaluation harnesses, guardrails, approval workflows, tool-use limits, source attribution, and kill switches
  • Optimize core metrics across agent systems, focusing on reasoning quality, retrieval accuracy, latency, cost, safety, and user experience

About You

  • 5+ years of overall technical experience, including 2+ years of hands-on experience designing and building Generative AI/LLM applications in production
  • Bachelor’s, Master’s, or PhD in Computer Science, Data Science, Machine Learning, or a related technical field
  • Strong proficiency in Python alongside solid software engineering principles and a deep understanding of the full AI/ML lifecycle (data prep through observability)
  • Expert familiarity with agentic frameworks and modern AI orchestration and development tools (e.g., LangChain, LangGraph, AutoGen, LlamaIndex) alongside deep practical skills in prompt engineering
  • Proven capability to evaluate and select foundational or open-weight models, balancing enterprise trade-offs across capability, context length, hosting, security, and cost

COMPENSATION – Competitive base salary, plus quarterly bonus based on individual performance and contribution towards success of others and the firm.

Why work at Radix Trading Experienced Job Board

  • Culture: Described as a culture of openness and collaboration, with a hacker's approach to testing ideas. The firm values "persistent drive to improve," "creative problem solving," "team mindset," and "orientation for making money."
  • Impact: Employees can "directly affect our bottom line within your first few weeks on the team." The work provides "near-immediate feedback on your best ideas."
  • Compensation: Competitive salary plus quarterly bonus based on individual performance and contribution towards success of others and the firm.
  • Work Environment: Offices in Chicago (River North), New York (One World Trade Center), and Amsterdam. The firm offers a hybrid/office presence (roles are listed as Chicago, New York, or Amsterdam).
  • Employee Rating: 4.3/5.0 on LinkedIn (23 reviews), with Compensation rated 4.6/5.0.
  • Notable Perks: Access to cutting-edge proprietary technology, a supercomputer-like research platform, and the opportunity to work alongside top talent from Jane Street, Citadel, Google, and leading universities.

Application questions