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[Remote] Lead Site Reliability Engineer

Remote · Singapore Full-time

Note: The job is a remote job and is open to candidates in USA. Lumen Technologies is hiring a Lead Site Reliability Engineer to own the reliability of its Network as a Service (NaaS) platform. The role focuses on observability, incident response, automation, and cross-functional leadership to improve platform reliability and accelerate deployment and operations.

Responsibilities

  • 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
  • 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
  • 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
  • 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

Skills

  • 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 infrastructure-as-code skills: Terraform, Ansible, and Python
  • Experience running containerized workloads on Kubernetes
  • Working knowledge of modern observability and monitoring tooling (e.g., Datadog, CloudWatch, Grafana, Prometheus), including building dashboards and defining alerts
  • Demonstrated experience with incident management and blameless postmortems
  • Comfort using AI-assisted development and agentic tools as part of daily engineering practice
  • Understanding of network technologies including Internet, Ethernet, IPVPN, Edge Compute, and Optical transport
  • Strong listening and communication skills; able to operate with autonomy while knowing when to escalate
  • Multi-cloud experience across AWS, Azure, and GCP
  • Asynchronous programming concepts and distributed systems design
  • Zero-downtime deployment strategies
  • High availability and multi-region architectures
  • Source control and CI/CD practices at scale
  • Experience applying agentic workflows to operational support and investigation

Benefits

  • A comprehensive package featuring a broad range of Health, Life, Voluntary Lifestyle benefits and other perks that enhance your physical, mental, emotional and financial wellbeing.
  • Bonus structure (short-term incentives, long-term incentives and/or sales compensation).
  • Fully remote position within the United States.

Company Overview

  • Lumen delivers the most secure platform for applications and data to help businesses, government and communities deliver amazing experiences It was founded in 1968, and is headquartered in Monroe, Louisiana, USA, with a workforce of 10001+ employees. Its website is https://www.lumen.com.
  • Company H1B Sponsorship

  • Lumen Technologies has a track record of offering H1B sponsorships, with 19 in 2026, 26 in 2025, 15 in 2024, 30 in 2023, 16 in 2022, 12 in 2021. Please note that this does not guarantee sponsorship for this specific role.
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