New RJRP now shows Market-Observed Roles alongside verified postings — scored by our Hiring Activity algorithm. How it works →
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Market-Observed Role 🔍 Observed Likely Active (65-79)
This role was detected through Lyft's hiring system and hasn't been verified directly by the employer. Our algorithm scored it as Likely Active (65-79) based on freshness, specificity, and company patterns. What does this mean? →

Senior Software Engineer, Security Foundations (Networking Infrastructure Projects)

Lyft
🔍 Observed
68
Hiring Activity Score
Likely Active (65-79)
  • Base score
  • Posted 21 days ago
  • has salary, has location, quality description (5835 chars)
  • High confidence (90%)
  • Direct ATS (greenhouse)
How the Hiring Activity Score works →
$136K - $170K USD
Seattle, WA First seen 3 weeks ago Last seen 3 hours, 30 minutes ago Greenhouse
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Job Description

AI Summary
• Design and build critical security infrastructure including Internet edge proxies (Envoy), Web Application Firewalls, and service-to-service authentication systems at scale across Lyft's distributed systems • Develop and maintain essential services like credential management and secret distribution systems while embedding security best practices (least privilege, isolation, monitoring) throughout the company's infrastructure • Requires strong networking fundamentals (TCP/IP, HTTP, TLS, DNS), hands-on experience with edge/sidecar proxies, and expertise in identity/access management (IAM), Kubernetes, and cloud platforms like AWS • Must be proficient in high-level programming languages (Python, Go, or shell scripts preferred) with knowledge of cryptography, PKI, and experience running distributed web services at scale • Offers the opportunity to shape Lyft's networking security strategy with significant impact and visibility while collaborating across infrastructure teams in a rapidly growing security organization
Job Information
  • Company:
    Lyft
  • Location:
    Seattle, WA
  • Experience Level:
    Senior
  • Source:
    Greenhouse
  • Status:
    Active
Activity Score
68 /100
Likely Active (68)

Higher scores indicate more likely active hiring based on listing freshness, company activity, and other signals. Learn more →

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We now show two types of job listings

Same commitment to real jobs. More opportunities for you. Here's how it works.

✓ Verified Employer-Verified Posts

These jobs were posted directly to RJRP by the employer. The company has been verified through our multi-step process. This is our gold standard — the employer is real, the job is real, and you can apply with confidence.

✓ 100% employer verified
🔍 Observed Market-Observed Roles

These roles were detected through employer hiring systems like Workday. They haven't been verified by the employer directly, so we score each one using our Hiring Activity Score — an algorithm that analyzes freshness, specificity, company hiring patterns, and more to estimate whether the role is actively being filled.

📊 Only high-scoring listings are shown

Our promise hasn't changed. We will never show you a listing we can't stand behind. Market-observed roles must pass our scoring threshold before they appear on RJRP. Anything that looks like a ghost job, a talent pipeline, or a dead listing gets filtered out — you'll never see it.