Site Reliability Engineer (Network)

The role

You will help own Loft's networks, including cloud networking, VPN and site-to-site connectivity, segmentation, and routing across offices, test equipment, and ground stations. You will define reliability targets, manage the network as code, and reduce manual work through automation.

What you will do

• Participate in the design and implementation of Loft's network architecture across cloud networking, VPN/site-to-site, segmentation, and routing
• Tighten network security: segmentation, access, and connectivity hardening
• Manage the network as code using IaC provisioning, CI/CD, and GitOps
• Define SLOs for connectivity and ground-station availability
• Own observability (metrics, logs, tracing) that measures those SLOs
• Investigate and resolve reliability issues with root-cause analysis and durable fixes
• Reduce operational toil through automation
• Contribute to the SRE team's reliability and incident-response work
• Coordinate with IT on network components that interface with physical infrastructure
• Coordinate with the Test-Infrastructure team to keep test equipment securely accessible

Required qualifications

• 4-5 years in network engineering with hands-on routing, VPN/site-to-site, segmentation, DNS, and firewalling
• Hands-on software-defined networking, managing networks programmatically as code
• Strong public-cloud networking experience, ideally GCP (VPCs, peering, hybrid connectivity)
• Comfortable operating on a Kubernetes platform (k8s, Docker) and occasionally writing code
• Infrastructure-as-Code experience (Terraform or similar) and a CI/CD-driven, GitOps workflow
• An SRE mindset: SLOs, observability, and reducing toil through automation
• Ability to debug connectivity issues in a complex, hybrid network environment
• Degree in Computer Science or a related field, or equivalent practical experience

Nice to have

• Network certifications (CCNP or similar)
• Hands-on experience with GitOps frameworks (ArgoCD, FluxCD)
• Interest or experience in FinOps and cost-optimized architectures
• Familiarity with security practices: vulnerability scanning, threat detection, risk mitigation
• Understanding of orchestration in resource-constrained environments, like space systems

Benefits

• 100% company-paid medical, dental, and vision for you and your dependents
• 100% company-paid life, AD&D, and disability insurance
• Fully paid parental leave: 16 weeks for birthing parents, 10 weeks for non-birthing parents
• Flexible time off and 12 paid holidays
• HSA with employer contribution, FSAs, and commuter benefits
• Carrot Fertility, One Medical, and a free Employee Assistance Program
• 401(k) and equity
• Daily catered lunches and snacks in office
• Annual company off-site and regular social events
• International exposure to the team in France
• Relocation assistance when applicable

Before you apply

• Attach a copy of your resume in English

About the company

Loft provides governments, companies, and research institutions with a way to deploy missions in orbit, offering end-to-end missions as a service. Founded in 2017, it operates offices in San Francisco, Golden, and Toulouse.