A hybrid role at Mistral AI. 7+ years of experience in WAN, ISP connectivity, or external networking.
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Original listing text, shown exactly as published by the company.
As a Senior WAN & ISP Engineer, you will design, deploy, and optimize Mistral’s external network connectivity, ensuring high-performance, reliable, and secure connections between our data centers and the global internet. You will manage ISP relationships, fiber infrastructure, and firewall systems to support Mistral’s mission-critical operations. This role is focused on connecting our infrastructure to the world, not internal data center networking.
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Negotiate, provision, and maintain ISP contracts, SLAs, and peering agreements (e.g., with Orange, Colt, Equinix).
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Design and optimize multi-ISP connectivity for redundancy and performance.
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Monitor and troubleshoot fiber circuits, ensuring uptime and scalability.
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Configure, manage, and audit enterprise firewalls (e.g., Palo Alto, Fortinet, Cisco ASA).
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Implement security policies, access controls, and threat mitigation for external-facing networks.
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Collaborate with security teams to align firewall rules with organizational policies.
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Design and maintain BGP routing policies, traffic engineering, and failover mechanisms.
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Optimize latency, bandwidth, and reliability for global connectivity.
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Monitor WAN performance metrics (e.g., packet loss, jitter, throughput) and proactively resolve issues.
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Build and maintain relationships with ISPs, fiber providers, and hardware vendors.
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Coordinate with internal teams (e.g., infrastructure, security) to align WAN strategies with business needs.
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Represent Mistral in peering forums, IX communities, and vendor discussions.
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Maintain up-to-date documentation for WAN architectures, firewall configurations, and ISP agreements.
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Develop runbooks and playbooks for common network operations and incident response.
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Mentor junior team members on WAN/ISP best practices.
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7+ years of experience in WAN, ISP connectivity, or external networking.
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Deep expertise in BGP, OSPF, MPLS, and TCP/IP (route filtering, path selection, traffic engineering).
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Hands-on experience with ISP peering (e.g., AMS-IX, DE-CIX, France-IX) and multi-homing architectures.
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Proficiency in firewall management (Palo Alto, Fortinet, Cisco ASA, or similar).
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Familiarity with fiber optics, DWDM, and carrier-grade networking hardware.
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Experience with network monitoring tools (e.g., Grafana, Prometheus, Wireshark, Smokeping, RIPE RIS).
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Knowledge of network automation (Ansible, Python, or similar) is a plus.
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Understanding of network security principles (DDoS mitigation, VPNs, access controls).
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Strong problem-solving and analytical skills for troubleshooting complex WAN/ISP issues.
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Ability to thrive in a fast-paced, collaborative environment.
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Excellent communication and negotiation skills (English required; French is a plus).
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Vendor management experience (contracts, SLAs, escalations).
Mistral AI
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Mistral AI SAS is a French artificial intelligence (AI) company, headquartered in Paris. Founded in 2023, it has open-weight large language models (LLMs), with both open-source and proprietary AI models. As of 2025 the company has a valuation of more than US$14 billion.
Source: Wikipedia
