Lead Site Reliability Engineer

Lumen is the trusted network for the AI‑powered world, connecting people, data, and applications through our expansive fiber network and connected ecosystem. We enable secure, high‑performance connectivity across cloud, edge, and AI workloads for enterprises, governments, and communities.

At Lumen, you’ll work on infrastructure customers rely on today and build for what’s next, where performance, security, and resilience matter.

This is a high accountability environment where bold ideas drive real innovation for our customers, partners, and industry. The work is challenging, expectations are clear, and trust is built into how we operate. If you’re ready to take ownership, deliver meaningful impact, and help shape the future of AI‑ready connectivity, join us today.

Lumen's Network as a Service (NaaS) platform delivers on-demand networking  Lead SRE, you'll own the reliability of that platform — partnering with operations teams and development counterparts to drive technical direction and resolve systemic issues across a broad range of network topologies and applications.

You'll be accountable for platform observability, incident management, and automation, and you'll coordinate across architecture, engineering, and systems development organizations to measurably improve reliability. You'll also use AI and agentic tooling to build utilities that accelerate deployment automation, platform administration, and incident investigation.

Success in this role draws on networking fundamentals, cloud platforms, software development and troubleshooting methodology, and a bias toward automating what you'd otherwise do twice. We're looking for a change maker — someone who sees where the platform should go next and drives meaningful impact for the customers who rely on it

This role is designated as a fully remote position within the United States.

• Reliability & Observability

• Serve as subject matter expert for network automation platform applications, services, and hosting environments

• Build and maintain the observability stack: instrument services, collect and curate metrics, and create dashboards and visualizations that make system health obvious at a glance

• Define and tune proactive alerting so issues surface before customers feel them

• Champion core SRE principles — SLIs, SLOs, and error budgets — and advocate for resilient, fault tolerant architecture

• Incident Management

• Participate in an on‑call rotation and lead incident response for service outages and unplanned downtime

• Drive blameless postmortems and root cause analysis; own follow-up actions through to completion

• Prevent recurrence through process improvements, tooling, and knowledge sharing across teams

• Automation & Infrastructure

• Automate deployment pipelines (CI/CD) and cloud infrastructure provisioning, scaling, and configuration using infrastructure as code

• Develop tools and utilities that reduce toil and empower operations and development teams to manage services independently

• Apply AI‑assisted and agentic workflows to development, support, and investigation work

• Collaboration & Leadership

• Collaborate with cross‑functional development teams to support, enhance, and scale NaaS applications

• Provide guidance and mentorship to junior engineers

• Maintain clear documentation for processes and architecture

Required Qualifications:

• Bachelor’s degree or equivalent in engineering, computer science, or related field.

• 8+ years in software development, systems engineering, and or networking

• 5+ years of related experience required.

• Hands‑on experience with at least one major cloud platform (AWS, Azure, or GCP), including compute, networking, and identity services

• Strong automation and…