Networking Engineer: Proxy and Corrosion

Fly.io; United States; Remote; USD 150,000 - 230,000; Full time

Benefits offered by this job

Fully remote

Competitive equity

Health benefits

Hardware and phone allowances

Flexible vacation

Job summary

Fly.io is seeking a distributed systems engineer to operate and advance the proxy and routing layer behind a global container platform. You will focus on absorbing fast state churn from autonomous workloads while serving traditional traffic through a single high-throughput edge proxy and data store.

This fully remote role suits engineers who enjoy systems-level Rust and large-scale networking. Responsibilities include building a Rust-based reverse proxy for a global Anycast network, evolving the

Qualifications

• Production experience writing systems-level Rust for networking or similar high-performance services.
• Strong grasp of TCP/IP, TLS, HTTP, and modern load-balancing techniques.
• Comfort with operating systems internals relevant to fast, concurrent network programs.
• Familiarity with distributed systems spanning global infrastructure.
• Ability to reason about concurrency, state, and failure modes in high-throughput environments.

Responsibilities

• Design, build, and maintain a Rust-based reverse proxy that fronts a global Anycast network.
• Evolve the routing data plane to handle rapid lifecycle changes from short-lived workloads.
• Sustain long-lived stateful sessions alongside bursty traffic on the same infrastructure.
• Operate and harden the shared routing database that apps and orchestration depend on.
• Partner with the Go-based orchestration team on provisioning and lifecycle reliability.
• Improve observability, latency, and failure isolation across edge and load-balancing stack.

Skills

Rust systems

Networking

TCP/IP

TLS

HTTP

Concurrency

Distributed systems

OS internals

Job description

Role overview

A distributed systems engineering position focused on operating and advancing the proxy and routing layer behind a global container platform. The work centers on absorbing far faster state churn from autonomous agent workloads while still serving traditional request/response traffic, with both flowing through a single high-throughput edge proxy and shared routing data store. It is a fully remote role well suited to engineers who enjoy systems-level Rust and large-scale networking problems.

Responsibilities

• - Design, build, and maintain a Rust-based reverse proxy that fronts a global Anycast network
• - Evolve the routing data plane so it can keep up with rapid lifecycle changes from short-lived, agent-driven workloads
• - Sustain long-lived stateful sessions running alongside bursty, irregular traffic patterns on the same infrastructure
• - Operate and harden the shared routing database that customer applications and internal orchestration both depend on
• - Partner with the Go-based orchestration team on provisioning, machine lifecycle, and overall platform reliability
• - Improve observability, latency, and failure isolation across the edge and load-balancing stack

Requirements

• - Production experience writing systems-level Rust for networking, proxy, or similar high-performance services
• - Strong grasp of TCP/IP, TLS, HTTP, and modern load-balancing techniques
• - Comfort with operating systems internals relevant to fast, concurrent network programs
• - Familiarity with distributed systems that span global infrastructure
• - Ability to reason carefully about concurrency, state, and failure modes in high-throughput environments

Nice to have

• - Hands-on experience with microVMs, sandboxing, or container runtime internals
• - Background in anycast, BGP, or other edge-networking topics
• - Working knowledge of Go for service code

Benefits and work setup

• - Fully remote; candidates must reside in Brazil, Canada, France, Germany, Greece, New Zealand, Poland, Portugal, the United Kingdom, or the United States
• - Base salary of $190,000 USD plus competitive equity grants with an extended exercise window
• - Health care benefits, flexible vacation with a minimum floor, and hardware and phone allowances
• - Hiring is conducted through hands-on work-sample challenges rather than traditional interviews