# Senior WAN & ISP Engineer – Paris Region

**Company**: Mistral AI
**Location**: Paris, Île-de-France
**Work arrangement**: hybrid
**Experience**: senior
**Job type**: full-time
**Category**: Engineering
**Industry**: Technology
**Wikidata**: https://www.wikidata.org/wiki/Q119718658

**Apply**: https://jobs.lever.co/mistral/40481a18-35d3-4d72-9fe2-62414fec48b9?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply
**Canonical**: https://yubhub.co/jobs/job_ad1a5260-8a7

## Description

As a Senior WAN & ISP Engineer at Mistral AI, 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.

Your key responsibilities will include negotiating, provisioning, and maintaining ISP contracts, SLAs, and peering agreements; designing and optimizing multi-ISP connectivity for redundancy and performance; monitoring and troubleshooting fiber circuits; configuring, managing, and auditing enterprise firewalls; implementing security policies, access controls, and threat mitigation for external-facing networks; collaborating with security teams to align firewall rules with organizational policies; designing and maintaining BGP routing policies, traffic engineering, and failover mechanisms; optimizing latency, bandwidth, and reliability for global connectivity; monitoring WAN performance metrics and proactively resolving issues; building and maintaining relationships with ISPs, fiber providers, and hardware vendors; coordinating with internal teams to align WAN strategies with business needs; representing Mistral in peering forums, IX communities, and vendor discussions; maintaining up-to-date documentation for WAN architectures, firewall configurations, and ISP agreements; developing runbooks and playbooks for common network operations and incident response; mentoring junior team members on WAN/ISP best practices.

To succeed in this role, you will need 7+ years of experience in WAN, ISP connectivity, or external networking, with deep expertise in BGP, OSPF, MPLS, and TCP/IP, as well as hands-on experience with ISP peering and multi-homing architectures. You should also have proficiency in firewall management, familiarity with fiber optics, DWDM, and carrier-grade networking hardware, and experience with network monitoring tools. Strong problem-solving and analytical skills, excellent communication and negotiation skills, and vendor management experience are also essential.

## Skills

### Required
- BGP
- OSPF
- MPLS
- TCP/IP
- ISP peering
- multi-homing architectures
- firewall management
- fiber optics
- DWDM
- carrier-grade networking hardware
- network monitoring tools

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Source: [Apply at jobs.lever.co](https://jobs.lever.co/mistral/40481a18-35d3-4d72-9fe2-62414fec48b9?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply)