Senior Network Hardware Engineer

Who we are At Twilio, we’re shaping the future of communications, all from the comfort of our homes. We deliver innovative solutions to hundreds of thousands of businesses and empower millions of developers worldwide to craft personalized customer experiences. Our dedication to remote-first work , and strong culture of connection and global inclusion means that no matter your location, you’re part of a vibrant team with diverse experiences making a global impact each day. As we continue to revolutionize how the world interacts, we’re acquiring new skills and experiences that make work feel truly rewarding. Your career at Twilio is in your hands. . Hiring and how we work We use Artificial Intelligence (AI) to help make our hiring process efficient. That said, every hiring decision is made by real Twilions! Also, while we are a remote-first company, you may be asked to report in person on an ad-hoc basis for team gatherings, functional off-sites or customer meetings. . See yourself at Twilio Join the team as Twilio’s next Senior Network Engineer. About the job This position is needed to help build, operate, and maintain the global corporate network infrastructure, VPN, ZTNA, and connectivity to our cloud-based systems. As part of the Identity and Network Trust team, you will monitor network performance to proactively respond to incidents. You will need to possess the technical knowledge to troubleshoot and perform root cause analysis for escalated connectivity issues. You also will collaborate with the security team and other engineering teams to develop a secured global network infrastructure. Responsibilities Build, operate and support the global Twilio IT network infrastructure. Keep track of network assets, including network hardware and software. Monitor the network performance, availability, utilization, throughput and latency, providing measurable metrics to the IT leadership team. Work closely with stakeholder teams to determine c

For more than 30 years, SonicWall has delivered a partner-first unified cybersecurity portfolio that helps SMBs, MSPs, and IT teams consolidate network security, endpoint security, security service edge (SSE), and threat response across hybrid environments. By bringing connected technology, real-time threat intelligence, automation, and expert services together, SonicWall helps organizations simplify security operations, achieve better security outcomes, and lower total cost of ownership. Backed by a global ecosystem of more than 17,000 partners, SonicWall delivers enterprise-grade protection built for SMB and mid-market realities. For more information, visit www.sonicwall.com or follow us on X, LinkedIn , Facebook , and Instagram . We are seeking an experienced Hardware Design Engineer to lead the end-to-end development of next-generation network security appliances. This individual will be responsible for all phases of hardware product development, including requirements definition, architecture, detailed design, prototyping, validation, manufacturing support, and production release. The ideal candidate will have extensive experience designing high-performance networking platforms, embedded systems, and security-focused hardware products. Key Responsibilities Hardware Architecture & Product Development Own the complete hardware design lifecycle from concept through production and sustaining engineering. Translate product requirements into hardware architectures and detailed design specifications. Conduct technology evaluations, design trade-off analyses, and recommend optimal solutions. Select and qualify key components, technologies, and vendors. Drive product lifecycle management (PLM) activities, including product introduction, production release, field support, and post-launch analysis. Design & Development Design complex multi-layer PCBs for networking and security appliances. Perform circuit design, schematic capture, signal integ

About us Graphcore is one of the world’s leading innovators in Artificial Intelligence compute. It is developing hardware, software and systems infrastructure that will unlock the next generation of AI breakthroughs and power the widespread adoption of AI solutions across every industry. As part of the SoftBank Group, Graphcore is a member of an elite family of companies responsible for some of the world’s most transformative technologies. Together, they share a bold vision: to enable Artificial Super Intelligence and ensure its benefits are accessible to everyone. Graphcore’s teams are drawn from diverse backgrounds and bring a broad range of skills and perspectives. A melting pot of AI research specialists, silicon designers, software engineers and systems architects, Graphcore enjoys a culture of continuous learning and constant innovation. Job Summary We are seeking a Senior Principal Network Engineer to help design, deploy, and optimize next‑generation AI data center networks. AI training and inference workloads require extremely high bandwidth, deterministic low latency, and zero‑packet‑loss networking environments. In this role, you will partner closely with the Network Architecture Lead to design and scale high‑performance computing (HPC) network fabrics supporting GPU clusters. You will work across hardware, networking, and AI application layers to ensure Graphcore’s large‑scale AI infrastructure operates at peak performance. The ideal candidate brings deep experience operating hyperscale or HPC data center networks and has expertise in high‑speed Ethernet fabrics, RDMA technologies, advanced automation, and telemetry systems. The Team The Data Center Network Engineering team designs and operates the high‑performance network fabrics that power Graphcore’s AI compute platforms. The team collaborates closely with hardware engineering, AI researchers, and infrastructure teams to build scalable networking environments optimized for distributed training and infe

Every day, tens of millions of people come to Roblox to explore, create, play, learn, and connect with friends in 3D immersive digital experiences– all created by our global community of developers and creators. At Roblox, we’re building the tools and platform that empower our community to bring any experience that they can imagine to life. Our vision is to reimagine the way people come together, from anywhere in the world, and on any device. We’re on a mission to connect a billion people with optimism and civility, and looking for amazing talent to help us get there. A career at Roblox means you’ll be working to shape the future of human interaction, solving unique technical challenges at scale, and helping to create safer, more civil shared experiences for everyone. The Data Center Network Engineering (DNE) is a pod within the Physical Networking team and owns the design, deployment, and operation of Roblox's large-scale data center network. This includes server-layer connectivity, intra and inter-DC connectivity. The team is building High-Performance Networking (HPN) fabrics, deploying 400G/800G networking, and scaling GPU clusters to support AI training and inference. You will: Drive the design, deployment, and operations of Roblox's large-scale data center network, including the networking for GPU clusters that support training and inference workloads. Design, qualify, and validate new technologies and hardware for scalable solutions. Coordinate data center builds and projects with multiple teams, including weekly cross-team calls. Work with Network Reliability Systems, Data Center Ops, Capacity Planning, Supply Chain, and Compute/ML teams to address network challenges early. Contribute to automation and telemetry that improve efficiency, reliability, and visibility. You have: 6+ years of expertise designing and deploying large-scale data center fabrics (CLOS). Experience with GPU clusters or AI/ML networking. Proficiency deploying and managin

Every day, tens of millions of people come to Roblox to explore, create, play, learn, and connect with friends in 3D immersive digital experiences– all created by our global community of developers and creators. At Roblox, we’re building the tools and platform that empower our community to bring any experience that they can imagine to life. Our vision is to reimagine the way people come together, from anywhere in the world, and on any device. We’re on a mission to connect a billion people with optimism and civility, and looking for amazing talent to help us get there. A career at Roblox means you’ll be working to shape the future of human interaction, solving unique technical challenges at scale, and helping to create safer, more civil shared experiences for everyone. The Data Center Network Engineering (DNE) is a pod within the Physical Networking team and owns the design, deployment, and operation of Roblox's large-scale data center network. This includes server-layer connectivity, intra and inter-DC connectivity. The team is building High-Performance Networking (HPN) fabrics, deploying 400G/800G networking, and scaling GPU clusters to support AI training and inference. You will: Drive the design, deployment, and operations of Roblox's large-scale data center network, including the networking for GPU clusters that support training and inference workloads. Design, qualify, and validate new technologies and hardware for scalable solutions. Coordinate data center builds and projects with multiple teams, including weekly cross-team calls. Work with Network Reliability Systems, Data Center Ops, Capacity Planning, Supply Chain, and Compute/ML teams to address network challenges early. Contribute to automation and telemetry that improve efficiency, reliability, and visibility. You have: 6+ years of expertise designing and deploying large-scale data center fabrics (CLOS). Experience with GPU clusters or AI/ML networking. Proficiency deploying and managin

We are looking for a Senior Network Engineer to take ownership of key areas of MongoDB's global network infrastructure. You'll design, deploy, and troubleshoot network and VPN solutions, including Palo Alto Prisma Access at global scale, partner with InfoSec to harden network security, and mentor engineers across the team. This role combines deep hands-on networking expertise with the judgment to prioritize and communicate risk and strategy to stakeholders. What You’ll Do Own the design, deployment, and operation of MongoDB's global network infrastructure Cisco Meraki, including routers, switches, firewalls,access points and IOT sensors Lead the rollout and ongoing management of Palo Alto Prisma Access as MongoDB's SASE , in partnership with InfoSec Administer and evolve MongoDB's network authentication stack, including RADIUS implementations (EAP-TLS, PAP, RadSec and Mac Authentication), ensuring secure and reliable network access Partner with InfoSec to implement and continuously improve network security controls, including VLAN configuration, firewall rules, DNS, DHCP, and IDS/IPS solutions Design and deploy network infrastructure for new and existing global office sites, partnering with Real Estate, workplace, AV, and Physical Security teams Serve as a senior technical escalation point (L3) for complex network issues across the organization Build automation to reduce manual network operations work and improve reliability and observability Act as a technical advisor for MongoDB's relationships with ISPs, hardware, low voltage cabling and other network vendors Mentor engineers across the team and contribute to a culture of technical excellence and self-service Responsibilities Ensure MongoDB's global network infrastructure and VPN remain fault tolerant, reliable, secure, and scalable as the company grows Reduce risk and technical debt across network, security and remote access solutions Communicate network strategy, risk, and incidents clearly to technical and non