Senior Software Engineer, Open-Source Cyber Risk (Remote)

Filigran; France; Remote; EUR 90,000 - 120,000; Full time

Benefits offered by this job

Competitive compensation

Remote-first flexibility

25 days PTO baseline

Volunteer days

Equipment provided for remote work

Two annual in-person get-togethers

Job summary

Filigran is a global cybersecurity company seeking a Senior Software Engineer to join its OpenCRQ squad. You will shape the data model, backend and product surface while influencing design decisions across OpenCRQ, OpenCTI, and OpenAEV.

You will work with a small, senior team and report to the Engineering Manager. You will drive end-to-end product ownership, build probabilistic loss models, and ensure explainable risk figures.

Qualifications

• Strong experience with a modern TypeScript stack and practical knowledge of PostgreSQL beyond the ORM.
• Ability to design interconnected data models that stay coherent as integrations evolve.
• Comfort turning quantitative concepts into maintainable software with clear reasoning.

Responsibilities

• Own end-to-end product problems from ideation to validation with users.
• Develop the quantification engine and enable reproducible, explainable models.
• Design the correlation layer across OpenCRQ, OpenCTI, OpenAEV and customer systems.
• Build reliable ingestion pipelines handling large-scale findings and ensuring tenant isolation.
• Define contracts for XTM One agents and provide clear explanations behind risk figures.
• Collaborate with senior engineers and product leaders to shape the product.

Skills

TypeScript

PostgreSQL

System design

Observability

English communication

Tools

Node.js

Fastify

Drizzle ORM

React

Vite

Job description

Filigran is a global cybersecurity company seeking a Senior Software Engineer to join its OpenCRQ squad. You will shape the data model, backend and product surface while influencing design decisions across OpenCRQ, OpenCTI, and OpenAEV.

You will work with a small, senior team and report to the Engineering Manager. You will drive end-to-end product ownership, build probabilistic loss models, and ensure explainable risk figures.