AI Applied Researcher
Company: RadiantSecurity
Location: San Francisco
Posted on: April 1, 2026
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Job Description:
About Radiant Security Radiant Security is a Bay Area Cyber AI
Startup that raised funding from top tier investors. Our vision is
simple: enable all security teams, to perform security operations
with the efficiency and effectiveness needed to prevent breaches.
We’re a small team of researchers and engineers with a deep focus
in cyber and AI. Our product automates the triage for any security
alert leveraging deep research, big data and dozens of AI Agents.
Join us and boost your career with hands-on AI experience. This is
a hybrid position and we are attending the offices 3 times a week
(Pleasanton, California, USA). The Role As an AI Applied Researcher
working on AI Triage, Investigation and Response, you will develop
AI driven solutions using agents and LLMs for Radiant customers.
What problems you will be working on? Building the ‘brain’ behind
our product - by designing cutting edge agentic flows Cost and
scale: We need to bring the power of LLMs and big-data integrations
to customers on any budget. Accuracy: We aim to correctly triage
any alert while providing full transparency on each step taken and
the reasoning behind it. Breadth: We need to run on any customer
environment and automate any security use case. What you’ll do
Research and optimization agentic flows to solve complex problems
Participate in PoCs using bleeding edge technologies to empower our
product Build and optimize retrieval-augmented generation (RAG)
service to improve the consistency and quality of our pipelines.
Fine tune LLMs to optimize accuracy and cost Things we’re looking
for Strong AI Applied Researcher with experience building complex
AI applications. Experience with NLP, ML algorithms Experience
contributing to research projects from PoC stage to production
Experience with LLMs, Agents and RAG - Advantage Experience using
LLMs / Deep Learning models - Advantage Ability to roll up your
sleeves and get things done. A great communicator and team player.
Benefits Generous equity package Unlimited PTO (take time when you
need it) Top-of-market salary Great healthcare The process We’re a
startup and we’re making decision quickly. Our process is designed
to give you the best glimpse of our team and allow us to evaluate
your technical and culture fit. Step 1: Executive interview
Technical interview Step 2: Virtual On Site: Technical and
Leadership interviews
Keywords: RadiantSecurity, Sunnyvale , AI Applied Researcher, IT / Software / Systems , San Francisco, California
