Senior Systems Engineer, Workers Runtime

Cloudflare, Inc

Confirmed live yesterday High trust

Quick summary

Work type: On-site
Location: Austin, TX
Posted: 30 days ago
Freshness: Confirmed live yesterday
Nearby: 99+ roles within 25 mi

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Salary context

How this pay compares to similar roles

Similar $182k

$130k most similar roles pay here $234k

This listing doesn't post a salary. Most similar roles pay $140,000–$223,775.

Based on 240 similar postings.

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About Cloudflare, Inc

Cloudflare is a prominent cloud services and security company that provides content delivery network (CDN), DDoS mitigation, and Zero Trust security services to millions of internet properties.

Cloudflare, Inc currently has 190 open roles on FindRole.

Listed pay typically runs $215,000–$278,000 across 59 roles with salary data.

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At a glance

TL;DR · Senior Systems Engineer, Workers Runtime

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As a Senior Systems Engineer, Workers Runtime, you will join the Emerging Technologies & Incubation team to develop and maintain the runtime that executes customer code at the edge. Your daily responsibilities include building features for the Workers Runtime, improving performance, reliability, and scalability while expanding JavaScript API and WebAssembly support. You will own production code and debug issues within a large-scale distributed system in a fast-paced environment. The role requires proficiency in C++ or Rust, strong computer science fundamentals including data structures and algorithms, and an operational mindset for managing production systems. Candidates should possess deep knowledge of the web, specifically HTTP, JavaScript, and WebAssembly. Technical expertise in Linux-based distributed systems, JS engine internals like V8, and standalone WebAssembly runtimes such as Wasmtime or Wasmer are highly relevant to this role.

What does a Systems Engineer earn?

Median $158250 from 186 postings across 30 companies.

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Skills

Rust C++ WebAssembly JavaScript V8 SpiderMonkey JavaScriptCore Wasmtime Wasmer Lucet Linux Unix HTTP Distributed Systems Serverless Networking Kernel Data Structures Algorithms

What you'll do

Build features and improvements for the Workers Runtime.
Improve runtime performance, reliability, and scalability.
Expand JavaScript API and WebAssembly support.
Shape product features based on technical feasibility.
Own code in production and debug issues within a large-scale distributed system.
Execute tasks in a fast-paced environment balancing product goals with technical requirements.

What we're looking for

Must have 2+ years of recent professional experience with C++ or Rust.
Strong computer science fundamentals including data structures, algorithms, and software design.
Experience owning production systems with an operational mindset.
Deep understanding of the web, including HTTP, JavaScript, and WebAssembly.
Experience debugging and optimizing large-scale Linux-based distributed systems.
Experience building high-performance distributed systems in Rust (preferred).
Experience with cloud or serverless platforms (preferred).
Export control laws, including the U.S. Export Administration Regulations.

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