Principal Software Engineer - XTM Integration
The Company
Filigran, founded in October 2022, stands out in the cybertech ecosystem for its commitment to revolutionizing cyber threat management with a proactive approach. Its mission is to develop innovative open-source solutions designed to anticipate cyber threats, identify security gaps, and strengthen organizational security posture.
Filigran solutions are now trusted by over 6,000 public and private organizations worldwide.
Your Responsibilities
Technical Vision & Standards for XTM Integration
Define and own the technical principles of the XTM Integration team: architecture patterns, code quality standards, tooling choices, CI/CD practices, AI-assisted development workflows, and benchmarking approaches.
Ensure these principles are understood, embraced, and consistently applied across the team — through documentation, code review, pairing, and example.
Drive the evolution of the connector/integration framework shared across OpenCTI, OpenAEV, and OpenGRC — making it easier, faster, and more reliable to build high-quality integrations.
Make key technical decisions on integration architecture: data flow design, error handling, retry strategies, observability, performance, and security.
Stay ahead of the ecosystem — evaluate new tools, libraries, and patterns before the team needs them.
Open Source Community & Ecosystem
Be a technical steward of Filigran's open-source integration ecosystem — ensuring that the connector framework and all published integrations are exemplary references that external contributors can learn from and build upon.
Define and enforce contribution guidelines, code standards, and documentation practices that make it easy for community members to develop their own connectors.
Engage with the open-source community: review external contributions, provide technical guidance, and represent Filigran's engineering culture publicly.
Design integration APIs and SDKs with the external developer experience in mind — clarity, simplicity, and extensibility are first-class concerns.
XTM Foundation Contribution
Participate actively in the XTM Foundation as a full member — contributing to cross-product engineering principles, shared tooling decisions, and technical standards that apply across OpenCTI, OpenAEV, and OpenGRC.
Bring the integration team's perspective into Foundation discussions, and carry Foundation decisions back into the integration team.
Collaborate with other Principal and Staff Engineers to maintain coherence across the full XTM engineering organization.
Hands-On Engineering
Write production code — you lead by example, not from a distance.
Prototype and validate new approaches before rolling them out to the team.
Review critical PRs with depth and care; your feedback should teach, not just correct.
Contribute to performance benchmarking and observability tooling for the integration layer.