Senior Software Engineer, SaaS

Cloudflare

. Design, build, and operate reliable backend services and APIs for managing customer domains and their configuration .

Posted 10/5/2026full-timeAustin • Texas • United StatesSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in designing and operating reliable backend services and APIs, with a strong focus on distributed systems and high-scale services. Proficient in debugging, troubleshooting, and delivering production-quality code while effectively communicating technical decisions.

Highest-signal resume keywords

Backend Systems DevelopmentGo Programming LanguageDistributed Systems DesignRESTful API DevelopmentObservability Tools and Practices

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Production-Quality CodeDebugging and TroubleshootingSQL and Relational DatabasesService-Oriented ArchitectureCertificate Lifecycle Management

Soft Skills

Clear CommunicationCollaboration

Tools & Technologies

KubernetesMessage QueuesUnix/Linux EnvironmentsMetrics and Logging Tools

Industry Keywords

PKI/TLSACMEDNSDomain ValidationHigh-Scale Services

Tech Stack

Tools & technologies

Distributed SystemsDNSKubernetesLinuxPostgresSQLUnixGo

About the role

Key responsibilities & impact

Design, build, and operate reliable backend services and APIs for managing customer domains and their configuration
Evolve the control plane to support tens of millions of customer domains while maintaining correctness, availability, and API performance
Improve certificate and domain lifecycle workflows, including onboarding, validation, renewal, migration, and safe deletion
Model ownership and shared state across distributed services and configuration stores
Build observability, alerts, and operational procedures; participate in debugging and incident response
Collaborate across engineering and product teams
Document designs and tradeoffs
Review fellow engineers’ work

Requirements

What you’ll need

3+ years of professional experience building backend systems at a technology company
Experience writing production-quality code in Go or another language, with willingness to learn Go
Experience designing, building, and operating distributed systems or high-scale services
Strong debugging and troubleshooting skills across applications, data stores, and production environments
Proficiency with modern Unix/Linux development and runtime environments
Track record of delivering well-tested, reliable code and taking ownership of it in production
Clear written and verbal communication, including ability to explain technical decisions and tradeoffs
Experience designing and evolving RESTful APIs used by external customers
Working knowledge of SQL and relational databases such as PostgreSQL, including schema and query design
Understanding of distributed-systems concerns such as consistency, caching, concurrency, and failure recovery
Experience modernizing legacy systems or migrating workflows to a service-oriented architecture
Experience with observability tools and practices, including metrics, logs, tracing, alerting, and SLOs
Familiarity with PKI/TLS, certificate lifecycle management, ACME, DNS, or domain validation
Experience with message queues, Kubernetes, or globally distributed configuration systems

Benefits

Comp & perks

Applicants progressing to the offer stage may be asked to attend an in-person interview within a Cloudflare office or hub
Reasonable accommodations for qualified individuals with disabilities
Equal employment opportunity and inclusive workplace commitment