Senior Software Engineer – Distributed Key Value

Cloudflare

Senior Software Engineer building Cloudflare’s globally distributed Quicksilver key-value store. Improving Go-based performance, monitoring, and reliability across Cloudflare’s Internet network.

Posted 8/21/2026full-timeAtlanta • Colorado, New York, Texas, Washington • 🇺🇸 United StatesSenior💰 $168,000 - $231,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in developing and maintaining large-scale distributed systems, with a strong focus on performance optimization, code quality, and robust system design. Proficient in Go programming and capable of handling complex debugging and monitoring tasks.

Highest-signal resume keywords

Go ProgrammingLarge-Scale Distributed SystemsPerformance OptimizationDebugging and TroubleshootingStorage Systems

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Go ProgrammingSystem ProgrammingPerformance OptimizationRobust Systems DevelopmentUnit TestingIntegration TestingMonitoring ToolsDebugging TechniquesPeer-to-Peer SystemsDistributed Systems

Soft Skills

Collaborative TeamworkConstructive CriticismFlexibilityAutonomyPragmatic Engineering

Tools & Technologies

QuicksilverCloudflareMonitoring ToolsDeployment ToolsRollback Plans

Industry Keywords

Key-Value StoreNetwork IssuesHardware FailuresKernel BugsData Delivery

Tech Stack

Tools & technologies

Distributed SystemsGo

About the role

Key responsibilities & impact

Work on Cloudflare’s globally distributed Quicksilver large-scale key-value store
Write new features in Go and review pull requests
Improve performance, including CPU and memory usage
Improve monitoring and tooling written in Go
Debug and investigate hard-to-reproduce problems
Own and support the full stack, including code, unit and integration tests, deployment and rollback plans, operations, monitoring, alerting, debugging, and on-call
Handle challenges involving network issues, hardware failures, kernel bugs, and reliable data delivery to the edge

Requirements

What you’ll need

Previous experience writing robust systems, with attention to code quality, performance, and technical debt
Proven experience with storage systems, peer-to-peer systems, large-scale distributed systems, or system programming
Experience investigating problems through multiple layers of a software stack
Flexibility and autonomy, with experience developing simple and smart designs for complex issues
Track record of pragmatic engineering and simple solutions
Enjoyment of both low-level and high-level programming
Familiarity with programming languages
Ability to give and receive constructive criticism in a collaborative team
Willingness to engage in outages during antisocial hours
Authorization to receive software or technology controlled under U.S. export laws without sponsorship for an export license may be required

Benefits

Comp & perks

Medical/Rx Insurance
Dental Insurance
Vision Insurance
Flexible Spending Accounts
Commuter Spending Accounts
Fertility & Family Forming Benefits
On-demand mental health support and Employee Assistance Program
Global Travel Medical Insurance
Short and Long Term Disability Insurance
Life & Accident Insurance
401(k) Retirement Savings Plan
Employee Stock Participation Plan
Flexible paid time off covering vacation and sick leave
Leave programs, including parental, pregnancy health, medical, and bereavement leave
Equity plan participation