Senior Software Engineer, Cyber Risk Quantification (OpenCRQ)

Filigran; Paris; Remote; EUR 90,000 - 150,000; Full time

Job summary

Filigran is seeking a Senior Software Engineer to join OpenCRQ, its cyber risk quantification product. You will influence data models, the backend, and the product surface, collaborating with engineering and product leaders to shape a young product and its foundations.

You will tackle end-to-end ownership, build the probabilistic loss models, and design scalable ingestion and agentic interfaces. Fluency in English is required and the team values curiosity and rigorous reasoning.

Qualifications

• Proven track record taking complex product problems from idea to validated outcomes.
• Strong experience with a modern TypeScript stack and PostgreSQL beyond the ORM.
• Ability to reason about complex relationships across systems and data models.

Responsibilities

• Own end-to-end product problems from ideation to implementation, testing and validation with users.
• Build and evolve the quantification engine to turn threat data into probabilistic loss distributions.
• Develop the correlation layer to model relationships across OpenCRQ, OpenCTI, OpenAEV and customer systems.
• Design reliable ingestion pipelines capable of scale and tenant isolation.
• Define contracts for XTM One agents and provide clear explanations behind risk figures.

Skills

Strong software engineering

Fluent English

Tools

TypeScript stack

PostgreSQL

OpenTelemetry

Prometheus

Drizzle ORM

Job description

Filigran is seeking a Senior Software Engineer to join OpenCRQ, its cyber risk quantification product. You will influence data models, the backend, and the product surface, collaborating with engineering and product leaders to shape a young product and its foundations.

You will tackle end-to-end ownership, build the probabilistic loss models, and design scalable ingestion and agentic interfaces. Fluency in English is required and the team values curiosity and rigorous reasoning.