Senior Network Security Engineer

Hamilton Barnes ?; San Francisco (CA); On-site; USD 130,000 - 160,000; Full time

Job summary

A tech company is seeking a Senior / Staff Network Security Engineer based in San Francisco, California. The role involves architecting network protections, leading DDoS defense strategies, and implementing a Zero-Trust model. Ideal candidates should have over 5 years of experience in network security, particularly in large-scale cloud environments. Join a dynamic team fostering a security-first culture with collaborative project engagements.

Qualifications

• 5+ years in hands-on network-security engineering.
• Expertise in edge-protection technologies.
• Strong command of network security protocols.

Responsibilities

• Architect and deploy resilient protections at the network edge.
• Create and maintain sophisticated DDoS-defense programs.
• Lead the rollout of a Zero-Trust model across the cloud.

Skills

Network security engineering

DDoS mitigation

Web-exploit defense

Zero-Trust implementations

Collaboration with DevOps/SRE

Job description

Overview

We are looking for a seasoned Senior / Staff Network Security Engineer to spearhead our security strategy and defend our fast-growing cloud platform. You will design and deploy advanced safeguards concentrated on the network perimeter, ensuring our edge remains secure, resilient, and reliable at massive scale. Operating in a high-throughput environment, you’ll keep our infrastructure and services protected while earning trust across the organization.

Responsibilities

• Architect and deploy resilient protections at the network edge
• Create and maintain sophisticated DDoS-defense programs that preserve uptime.
• Lead the rollout of a Zero-Trust model across Fluidstack’s cloud and network domains.
• Stand up comprehensive network-security monitoring to surface threats early.
• Collaborate closely with Networking, Infrastructure, SRE/DevOps, and Software Engineering to embed security best practices into designs, deployments, and pipelines.
• Champion security initiatives and cultivate a security-first culture. Coach junior engineers and peer teams on network-security fundamentals, deliver training, and model strict adherence to policies and standards.
• Author, refine, and enforce security policies and SOPs suited to a highly scalable, distributed environment.

Required Skills

1. 5+ years in hands-on network-security engineering, protecting large-scale cloud or hyperscale environments and complex distributed systems.
2. Deep expertise in edge-protection technologies - DDoS mitigation, web-exploit defense, and Zero-Trust implementations
3. Strong conceptual and practical command of modern cloud and network security. Proficient in protocols (TCP/IP, DNS, BGP, HTTP/S), segmentation, VPNs, and firewall tuning; experienced securing AWS, GCP, Azure, or bespoke hyperscale and containerized platforms.
4. Excellent at partnering with Networking, Infrastructure, DevOps/SRE, and Software groups to craft security solutions that protect critical assets while empowering the business.
5. Skilled in crafting and evaluating security controls for massively scalable systems, and familiar with frameworks such as NIST, ISO 27001, and SOC 2 in cloud contexts.

Seniority level

• Mid-Senior level

Employment type

• Full-time

Job function

• Information Technology

Industries

• IT Services and IT Consulting