Senior Software Engineer, Cloudflare
Enterprise Readiness
Web performance and security platform
Open for applications
Web performance and security platform
1001+ employees
Open for applications
1001+ employees
Company mission
To help build a better Internet that is bold and ambitious.
Role
Who you are
- We realize people do not fit into neat boxes. We are looking for curious and empathetic individuals who are committed to developing themselves and learning new skills, and we are ready to help you do that
- Senior-Level Backend Expertise: 5+ years of experience building and scaling production-grade applications. Deep proficiency in a typed language like Go, PHP, Rust, or Typescript for APIs is a plus, but our primary language Go can be learned on the job
- Systems Architecture: Proven experience designing distributed systems that are scalable, maintainable, and fault-tolerant. You understand how to manage state, concurrency, and data consistency
- Pragmatic Full Stack Ability: While your work will be weighted toward the backend, you are comfortable navigating a React/TypeScript codebase to build or improve UI components
- Agentic AI Development: You are excited about exploring and adopting the rapidly advancing AI tooling in your workflows
- Databases: Experience with SQL, including schema design, query optimization, and serving globally distributed actors
- Observability-First Mindset: You don't consider a feature "done" until it's monitored. Experience using distributed tracing (Jaeger), error tracking (Sentry), and log analysis (Kibana/Elasticsearch) to debug production issues
- Cloud & Containers: Practical experience deploying and managing services in Kubernetes and Docker
- Operational Ownership: You are comfortable participating in an on-call rotation and feel a sense of pride in maintaining high-uptime services
What the job involves
- As a Senior Software Engineer on the team, you will build the foundational services that enable the world’s largest organizations to run on Cloudflare
- You will be responsible for the APIs, UIs, internal tooling, and admin platforms that help manage complex enterprise logic at scale
- More specifically, there will be a heavy focus on scaling and extending our Organizations model - the new abstraction for our largest customers and partners to manage Cloudflare
- While this is a full-stack role, our roadmap for the coming year is weighted toward backend architecture and systems design
- You will spend your time helping design our data models, architecting high-performance services in Go, optimizing our PostgreSQL layer, and ensuring our services are resilient within our Kubernetes ecosystem
- You won't just ship features; you will also own the "operational excellence" of your services
- You’ll use tools like Jaeger, Sentry, and Kibana to troubleshoot complex distributed traces and ensure our platform remains highly available for our external and internal customers
- You will also rapidly expand your domain knowledge and ability to deliver change through AI tooling
- Cloudflare is ramping up its support and infrastructure for AI development tools like OpenCode
- Which, connected to everything safely possible with MCPs, is enabling engineers to have greater impact, faster than ever
Our take
Cloudflare is a multi-service global network that provides web security and infrastructure, DDoS mitigation services, and a content delivery network. Founded in 2009, Cloudflare has risen to become an industry giant, with over 25 million global internet properties on its network.
Cloudflare has been responsible for a number of admirable initiatives, offering free web protection to human rights groups, journalists, artists, and US election websites. This goes some way to counteracting the flak Cloudflare has received in some circles for the controversial groups and users who use its services. This chequered history, however, has not affected its over 80% market share in the content delivery network field.
This is perhaps in part because it has proven sharp at staying abreast of the rapidly morphing tech and digital space and customer demands. For example, Cloudflare is shifting to 100% renewable energy usage to create a zero-emissions internet, and in 2020 released a feature that would help users navigate data privacy regulations by selecting where their data is stored.
And impressive third-quarter 2025 results show strong momentum, with revenue rising to $562 million from $430 million a year earlier. The company also raised its full-year guidance, underscoring confidence in continued growth. As demand for secure, cloud-based infrastructure keeps growing, Cloudflare's expanding platform and improving efficiency leave it well positioned to capture further gains in a rapidly growing market.
Steph
Company Specialist at Welcome to the Jungle
Insights
16% employee growth in 12 months
Company
Company benefits
- Take-what-you-need vacation: We encourage employees to find a comfortable work-life balance by taking as many days off as they need while still being able to perform their jobs satisfactorily. (We really mean it!)
- Paid maternity & paternity leave: Our global parental leave policy allows up to sixteen paid weeks of bonding leave time for all qualifying new parents.
- Employee benefits: We offer a comprehensive benefits package including healthcare, life insurance, short- and long-term disability, pension plans in accordance with the market practice in our locations.
- Commuter program: We are flexible about where we work and value connecting at the office. Our commuter benefits program is in place to support team members' commute to work via public transportation without the extra cost burden.
- Wellbeing: Global offerings that provide mental health, childcare and family forming support to our employees across our offices.
Company HQ
China Basin, San Francisco, CA
Leadership
Lee Holloway
(Co-Founder & Lead Engineer)Lee began their career as an Engineer at Homewarehouse for a year before working at Unspam Technologies for 4 years. They co-created Project Honey Pot in 2004 and Cloudflare in March 2009, serving as Lead Engineer of both to present.
Michelle Zatlyn
(Co-Founder, President & Co-Chair)Having worked for Investor Economics and I Love Rewards for a combined 4 years, Michelle worked at Toshiba for 3 years as a Product Manager. She then co-founded Cloudflare in 2009 as COO, and has served as President since 2020. She is also a Board Member at Atlassian.
Matthew Prince
(Co-Founder & CEO)Matthew studied for an MBA at Harvard Business School before co-founding Unspam Technologies in December 2001, and Cloudflare in 2009, where he has served as CEO ever since.
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