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Salary: USD 132,000 - 165,000 / annual
The Office Technology team at Datadog designs, deploys, and operates the network infrastructure that keeps the company's global offices connected, secure, and reliable. The team owns routing, switching, wireless, office firewalls, connectivity, and the observability and operational practices needed to provide a dependable employee experience at scale.
As a Senior Network Engineer on this team, you will own major network services and complex multi-site initiatives from problem definition and design through implementation, migration, and stable operations. This is a senior-level role combining hands-on engineering with technical leadership. You will act as a technical anchor for the team, leading design reviews and difficult troubleshooting, improving standards and automation, and helping other engineers deliver high-quality work. You will shape team roadmap proposals and technical decisions through evidence and clear tradeoffs, while remaining accountable for reliable delivery and day-to-day operability.
Key responsibilities include: designing resilient, scalable solutions across LAN, Wi-Fi, routing, switching, and office firewalls with explicit failure domains, capacity assumptions, security controls, and migration paths; authoring RFCs and leading design reviews with clear documentation of goals, constraints, alternatives, decisions, risks, validation, rollout, and rollback; building production readiness into network changes through meaningful service objectives, monitoring, alerting, runbooks, capacity planning, failure testing, and operational handoff; designing reusable automation for provisioning, configuration, policy, compliance, telemetry, and change validation; owning the health and lifecycle of major network services alongside other senior engineers and leadership; leading difficult incidents and root-cause investigations; evaluating technology and vendor options; partnering with Security, IT Support, Endpoints, AV, Workplace, Construction, and Infrastructure teams; mentoring other engineers and improving team standards; and participating in operational support and incident response.
REQUIREMENTS:
- Deeply experienced, hands-on network engineer with strong knowledge of TCP/IP, routing, switching, VLANs, wireless, DNS, DHCP, firewalls, and enterprise network security
- Experience designing and operating resilient network infrastructure across distributed offices or campus environments
- Skilled at diagnosing complex issues using packet captures, logs, flow data, dashboards, and vendor telemetry
- Comfortable building maintainable automation using scripting, APIs, infrastructure-as-code, version control, testing, and CI/CD practices
- Strong in production engineering practices, including observability, service objectives, capacity planning, change safety, incident response, and post-incident improvement
- Able to take ambiguous problems from problem statement to durable solution, balancing reliability, security, user experience, cost, and delivery speed
- Clear, concise communicator who can lead technical discussions, explain tradeoffs, and build alignment with technical and non-technical partners
- Thoughtful mentor who raises the quality of others' work without becoming a bottleneck
- Responsible in use of AI-assisted engineering tools: protects sensitive data, validates outputs, and knows when deterministic automation is the safer choice
BONUS EXPERIENCE:
- Experience with Datadog or other observability platforms, including network device monitoring, flow analytics, synthetic testing, and service-level reporting
- Experience with Python, Ansible, Terraform, Git-based workflows, or network automation frameworks
- Experience with network access control, RADIUS or 802.1X, segmentation, VPNs, or identity-aware and zero-trust networking
- Experience delivering global office expansions, infrastructure refreshes, or complex migrations in a rapidly scaling organization
