
1 - 10 employees
đ€ Artificial Intelligence
đ API
đ Security
Artificial Intelligence âą API âą Security
White Circle is a unified control layer for AI applications that helps teams test, protect, observe, and optimize model-driven features. The platform provides automated red-teaming, low-latency guardrails, input/output protection (PII detection, jailbreak prevention, hallucination detection, data-leak prevention), analytics and custom metrics (risk scoring, user-behavior clustering), and optimization tools like dynamic prompts and model routing. Delivered via a high-throughput API with enterprise-grade security (SOC 2, HIPAA), White Circle targets organizations deploying AI at scale.
đ„ 1 minute ago
đ«đ· France â Remote
đ” $60k - $90k / year
â° Full Time
đĄ Mid-level
đ Senior
đ€ AI Engineer
Improve your chances of getting an interview by checking your resume score before you apply.

1 - 10 employees
đ€ Artificial Intelligence
đ API
đ Security
Artificial Intelligence âą API âą Security
White Circle is a unified control layer for AI applications that helps teams test, protect, observe, and optimize model-driven features. The platform provides automated red-teaming, low-latency guardrails, input/output protection (PII detection, jailbreak prevention, hallucination detection, data-leak prevention), analytics and custom metrics (risk scoring, user-behavior clustering), and optimization tools like dynamic prompts and model routing. Delivered via a high-throughput API with enterprise-grade security (SOC 2, HIPAA), White Circle targets organizations deploying AI at scale.
âą Red-team LLM-powered systems: chatbots, copilots, RAG pipelines, AI agents, tool-calling workflows, and API-based AI products. âą Test for jailbreaks, prompt injection, system-prompt and tool leakage, sensitive-data and context leakage, unsafe outputs, policy bypass, tool misuse, excessive agency, resource and token-cost abuse, and business-logic abuse. âą Write lightweight Python to automate attacks, run prompt sets, call model APIs, collect and score responses, and generate repeatable reports. âą Build and maintain an internal attack library: prompts, scenarios, test cases, regression tests, scoring rubrics, and reusable demo cases. âą Turn model failures into clear reports: what happened, why it matters, how to reproduce it, how severe it is, and how to fix it. âą Convert successful attacks into regression tests and product requirements. âą Track new red-team and safety techniques and fold the useful ones into our tests. âą Support GTM by producing strong, credible evidence for customer demos, security reviews, and sales conversations.
âą Genuinely love breaking things and reasoning adversarially. âą Have a background in QA automation, AppSec, API/security/pen testing, or bug bounty. âą Have strong Python scripting skills. âą Have experience testing APIs, web apps, backends, or SaaS products. âą Are hands-on with LLMs, prompts, system instructions, RAG, agents, and tool/function calling. âą Understand LLM-specific abuse vectors (prompt injection, jailbreaks, data leakage, tool misuse, excessive agency, token-cost exhaustion). âą Can find bypasses, abuse edge cases, chain failures, and reason about real-world impact. âą Can separate real customer risk from low-impact prompt tricks. âą Write clear, reproducible bug reports in clear English. âą Can move fast without perfect requirements. âą Hold a firm ethical line: you red-team to make systems safer, operate within scope and the law, and don't produce or traffic in genuinely harmful material.
âą Paid time off in line with your local regulations, no matter where you work from âą Work from Paris (hybrid) + relocation package âą Best medical insurance in France âą All the hardware, tools, and services you need âą Covered subscriptions for AI agents âą Team off-sites twice a year: we've recently been to the Alps and to Saint-Tropez
Apply Nowđ 5 days ago
Commercial Lead responsible for launching and developing commercial activities in France. Leading sales, customer relationships, and commercial growth for a MedTech company.
đ«đ· France â Remote
đ” âŹ75k - âŹ95k / year
đ° Seed Round on 2020-12
â° Full Time
đ Senior
đ€ AI Engineer
đŁïžđ«đ· French Required
đ 6 days ago
Responsable Commercial France launching and developing health tech activities in MedTech. Building strong relationships with key healthcare providers and managing full sales cycle.
đ«đ· France â Remote
đ” âŹ75k - âŹ95k / year
đ° Seed Round on 2020-12
â° Full Time
đĄ Mid-level
đ Senior
đ€ AI Engineer
đŁïžđ«đ· French Required
đ June 16
AI Engineer optimizing self-hosted LLMs and building AI features at In Tandem. Focusing on efficiency while supporting family technology solutions across their brands.
đ«đ· France â Remote
đ” âŹ60k - âŹ80k / year
â° Full Time
đĄ Mid-level
đ Senior
đ€ AI Engineer
AWS
Docker
Python
đ June 4
Full-stack Software Engineer developing AI Developer Tools for a health insurance platform. Collaborate within a talented engineering team to create reliable and impactful solutions.
đ May 6
Lead development and productionization of GenAI/LLM systems for a large-scale platform. Work with Python, LLM integrations, MongoDB, Node.js, Vue.js and TypeScript within a remote-friendly R&D team.
đ«đ· France â Remote
đ° $200M Private Equity Round on 2021-10
â° Full Time
đą Junior
đĄ Mid-level
đ€ AI Engineer
đ«đšâđ No degree required
đŁïžđ«đ· French Required
Azure
JavaScript
MongoDB
Node.js
Python
TypeScript
Vue.js