ROLE SPECIFICATION // 6DU7C5•ACTIVELY_INTERVIEWINGHACKER NEWS // WHO'S HIRING FEED
Systems Software Engineer (Global Networking)
YC
Y Combinator Verified IngestionHN // WHO IS HIRING
Direct from Fly.io Founders • Work at a Startup Feed
Mandatory Verified Compensation & Equity Range
Guaranteed Base Salary$185k - $240kUSD / YEAR • RADICAL TRANSPARENCY
Direct Equity Grant0.25% - 0.6%STANDARD 4-YR VEST // 1-YR CLIFF
Anti-Ghosting SLA< 16 HoursHEARTBEAT VERIFIED LIVE
Production Stack Specification
RustGoLinux KerneleBPFWireGuardBGPDocker
The Engineering Mission & Technical Challenges
Fly.io transforms Docker containers into microVMs running on bare metal servers in 35+ data centers around the world.
Current Technical Challenges & 90-Day Deliverables:
• Engineer Rust-based eBPF packet filters running on Linux edge gateways processing millions of packets per second.
• Optimize our multi-tenant WireGuard Anycast mesh routing to guarantee sub-millisecond inter-region tunnel latency.
• Build automated DDoS mitigation algorithms neutralizing L3/L4 volumetric attacks in hardware before reaching host CPUs.
• Refactor connection proxy engines terminating TLS 1.3 handshakes at the edge with zero buffer bloat.
Transparent Interview Roadmap
1
Networking Systems Screen45m
Direct architecture discussion with Thomas Ptacek on eBPF, TCP/IP stack internals, and Anycast routing.
2
Packet Pipeline Deep Dive60m
System design of a high-throughput network packet scheduler operating under Linux memory constraints.
3
Paid 1-Day Trial PR1 Day
Compensated trial ($1,000) debugging an edge proxy benchmark in our simulated network topology.
4
Executive Offer Lock24h
Formal competitive offer with guaranteed base salary and stock options.
APPLICATION PROTOCOL: BUILDER DOSSIER