xAI's mission is to create AI systems that can accurately understand the universe and aid humanity in its pursuit of knowledge.

About the Role

Grok and X are powered largely from our own on-premise infrastructure which enables us to move at speed and efficiency when deploying vast amounts of capacity. People wouldn't be able to enjoy participating in the townhall on X or use Grok to understand the universe if it weren't for our Edge networking infrastructure.

We are seeking two senior engineers that help architect, develop, and build our peering and transit infrastructure with associated routing policies, eDNS, cloud connectivity, CGNAT, and load balancer fleets. The two successful candidates will have great Python skills to remove repetitive engineering cycles and auto-mitigate customer impacts.

Responsibilities

• Architect, develop, and maintain peering and transit infrastructure, including routing policies, eDNS, cloud connectivity, CGNAT, and load balancer fleets.

• Leverage Python scripting to automate repetitive engineering tasks and proactively mitigate customer impacts.

• Manage and troubleshoot DNS infrastructure to ensure reliable performance.

• Oversee and resolve issues related to cloud VPCs and connected network hardware.

• Diagnose and resolve complex TCP/IP issues to maintain seamless network operations.

• Collaborate with cross-functional teams to enhance infrastructure efficiency and support xAI's AI platforms.

Required Qualifications

• 7+ years of experience with edge network hardware, including load balancers, CGNAT, routers, and switches.

• 7+ years of routing experience in backbones, peering, and transit areas with expertise in traffic engineering.

• 5+ years of experience using Python scripting to automate deployments and break/fix tasks.

• 3+ years of experience managing DNS infrastructure.

• 3+ years of experience managing and troubleshooting cloud VPCs and connected network hardware.

• Proven ability to troubleshoot complex TCP/IP issues.

Preferred Qualifications

• Experience with A10 Networks, NGINX, or open-source load balancer/CGNAT software.

• Familiarity with Route53 and UltraDNS.

• Expertise in GCP, AWS, and OCI VPC architecture and troubleshooting.

• Knowledge of Kubernetes Ingress.

• Experience with CDN, Fastly, and Cloudfront.

• Demonstrated success in on-call rotations and incident response in high-stakes environments.

• Strong problem-solving skills and adaptability in a fast-paced, ambiguous setting.

Annual Base Salary

$180,000 - $440,000 USD

Benefits

Base salary is just one part of our total rewards package at X, which also includes equity, comprehensive medical, vision, and dental coverage, access to a 401(k) retirement plan, short & long-term disability insurance, life insurance, and various other discounts and perks.

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Grok and X are powered largely from our own on-premise infrastructure which enables us to move at speed and efficiency when deploying vast amounts of capacity. People wouldn’t be able to enjoy participating in the townhall on X or use Grok to understand the universe if it weren’t for our Edge networking infrastructure.

Responsibilities

• Architect, develop, and maintain peering and transit infrastructure, including routing policies, eDNS, cloud connectivity, CGNAT, and load balancer fleets.

• Leverage Python scripting to automate repetitive engineering tasks and proactively mitigate customer impacts.

• Manage and troubleshoot DNS infrastructure to ensure reliable performance.

• Oversee and resolve issues related to cloud VPCs and connected network hardware.

• Diagnose and resolve complex TCP/IP issues to maintain seamless network operations.

• Collaborate with cross-functional teams to enhance infrastructure efficiency and support xAI’s AI platforms.

Required Qualifications

• 7+ years of experience with edge network hardware, including load balancers, CGNAT, routers, and switches.

• 7+ years of routing experience in backbones, peering, and transit areas with expertise in traffic engineering.

• 5+ years of experience using Python scripting to automate deployments and break/fix tasks.

• 3+ years of experience managing DNS infrastructure.

• 3+ years of experience managing and troubleshooting cloud VPCs and connected network hardware.

• Proven ability to troubleshoot complex TCP/IP issues.

Preferred Qualifications

• Experience with A10 Networks, NGINX, or open-source load balancer/CGNAT software.

• Familiarity with Route53 and UltraDNS.

• Expertise in GCP, AWS, and OCI VPC architecture and troubleshooting.

• Knowledge of Kubernetes Ingress.

• Experience with CDN, Fastly, and Cloudfront.

• Demonstrated success in on-call rotations and incident response in high-stakes environments.

• Strong problem-solving skills and adaptability in a fast-paced, ambiguous setting.

Annual Base Salary

$180,000 - $440,000 USD

Benefits

Base salary is just one part of our total rewards package at X, which also includes equity, comprehensive medical, vision, and dental coverage, access to a 401(k) retirement plan, short & long-term disability insurance, life insurance, and various other discounts and perks.

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Key Responsibilities:

• Design, implement, and support enterprise-grade network solutions, with a focus on scalability, security, and performance.
• Administer and maintain Cisco Catalyst switches and Aruba wireless infrastructure to support wired and wireless connectivity across multiple locations.
• Manage and secure network perimeters using Palo Alto firewalls and configure site-to-site and client-based VPN connections.
• Monitor network health and performance using SolarWinds or other monitoring tools; respond to alerts and resolve issues proactively.
• Lead infrastructure upgrade projects, network segmentation, and expansion efforts, ensuring minimal disruption to operations.
• Collaborate with cross-functional teams to integrate network services with cloud and hybrid environments.
• Conduct in-depth troubleshooting and root cause analysis for complex network issues, including hardware, software, and configuration anomalies.
• Develop and maintain comprehensive network documentation, including topology diagrams, IP schemas, and operational procedures.
• Ensure compliance with security standards and assist with internal/external audits as required.

Required Qualifications:

• Bachelor’s degree in Computer Science, Information Technology, or a related field
• 7+ years of experience in enterprise network engineering roles.
• Strong expertise with Cisco Catalyst switches and Aruba wireless technologies.
• Proven experience configuring and managing Palo Alto Networks firewalls and VPN solutions.
• Proficient in network monitoring and alerting using SolarWinds or similar platforms.
• Solid understanding of Layer 2/3 protocols, including VLANs, STP, BGP, OSPF, and EIGRP.
• Familiarity with security frameworks, access control policies, and segmentation strategies.
• Experience supporting networks in hybrid or cloud environments (AWS/AWS GovCloud, Azure, or GCP) is a plus.
• Excellent communication, organizational, and documentation skills.
• Ability to manage multiple projects and priorities in a dynamic environment.

Preferred Qualifications:

• Advanced degrees or certifications such as CCNP, CCIE, or PCNSE
• Experience with Zero Trust Network Architecture (ZTNA) design and SASE/SSE implementation.
• Working knowledge of network automation using scripting tools (e.g., Python, Ansible).
• Familiarity with NAC (Network Access Control) solutions and 802.1X implementations.
• Prior experience supporting IT operations in regulated industries (e.g., defense, healthcare, finance).
• Exposure to SD-WAN, IPAM, and advanced QoS configurations.
• Experience with disaster recovery and business continuity planning for network services.

Additional Information: Benefits:

• Medical Insurance: Comprehensive health insurance plans covering a range of services
• Saronic pays 100% of the premium for employees and 80% for dependents
• Dental and Vision Insurance: Coverage for routine dental check-ups, orthodontics, and vision care
• Saronic pays 100% of the premium under the basic plan for employees and 80% for dependents
• Time Off: Generous PTO and Holidays
• Parental Leave: Paid maternity and paternity leave to support new parents
• Competitive Salary: Industry-standard salaries with opportunities for performance-based bonuses
• Retirement Plan: 401(k) plan with company match
• Stock Options: Equity options to give employees a stake in the company’s success
• Life and Disability Insurance: Basic life insurance and short- and long-term disability coverage
• Pet Insurance: Discounted pet insurance options including 24/7 Telehealth helpline
• Additional Perks: Free lunch benefit and unlimited free drinks and snacks in the office

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Key Responsibilities:

• Design, implement, and optimize high-performance, low-latency network architectures for HPC environments, including InfiniBand, RoCE, and high-speed Ethernet.

• Collaborate with HPC, DevOps, and AI research teams to integrate networking solutions with compute clusters, storage systems, and cloud platforms.

• Troubleshoot and resolve complex network issues to minimize downtime and maximize performance.

• Follow escalation procedures and ensure solutions are provided in a timely manner. Ensure escalation is progressing accordingly with the given severity.

• Monitor network performance, capacity, and security, implementing improvements as needed.

• Stay updated with emerging HPC networking technologies and best practices, and drive their adoption within Mistral.

• Develop and maintain documentation for network architectures, configurations, and operational procedures.

Qualifications & Experience:

Technical Skills:

• Proficiency in HPC networking protocols (InfiniBand, RoCE, TCP/IP, MPLS).

• Hands-on experience with network hardware (switches, routers, NICs) from vendors like Mellanox, Cisco, or Arista.

• Knowledge of network automation tools (Ansible, Python scripting).

• Familiarity with HPC environments, parallel computing, and distributed systems.

• Experience with network security best practices.

Soft Skills:

• Strong problem-solving and analytical skills.

• Ability to thrive in a fast-paced, collaborative environment.

• Excellent communication skills (English required; French is a plus).

• Teaching and documentation skills to ensure knowledge is archived and distributed to team members.

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Our team is currently seeking experienced Java developers to work as part of our Network team. As a senior software engineer, you will help bring the best ideas from the software development world into the networking industry.

Responsibilities:

• Contribute to our code base, systems and software architecture as a member of our engineering team.
• Help create and optimize network device models for different device vendors and protocols.
• Help create infrastructure needed to configure, collect and test network devices.
• Work with peers who are experts in Networking, Distributed Systems, Big Data and Search.

Requirements:

• 5+ years of work experience in software development
• 3+ years of work experience with Java
• BS in Computer Science or related degree
• Solid software engineering experience with large code bases
• Basic understanding of networking and TCP/IP.
• Strong verbal and written communication skills.

Nice to have:

• Working knowledge of how switches, routers, firewalls or load balancers work.
• Experience working with networking protocols such as BGP/OSPF/IS-IS, IPv4/IPv6, MPLS, VLAN, VXLAN, etc.

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What you'll do

We are seeking a highly skilled and motivated Network Engineer with strong hands-on experience in enterprise LAN/WAN environments and a solid background supporting large-scale data centers. In this role, you will play a critical part in maintaining and enhancing the VWGoA network landscape, providing L3 support, driving continuous improvement, and collaborating closely with cross-functional teams across server, storage, cloud and security domains.

What you need

• Demonstrable experience creating Python & Ansible automation, with proven track record of using CI/CD development concepts.
• L3 support to resolve VWGoA incidents in support of their infrastructure.

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