Senior Software Engineer, Cloudflare
Load Balancing
Web performance and security platform
Be an early applicant
Web performance and security platform
1001+ employees
Be an early applicant
1001+ employees
Company mission
To help build a better Internet that is bold and ambitious.
Role
Who you are
- First and foremost curiosity and critical thinking
- 5+ years of relevant professional experience with a technology company
- Strong programming skills in Go, Rust, C++, or a similar systems-level language
- Experience building and operating distributed systems
- Experience with modern Unix/Linux development and runtime environments
- Experience with monitoring, alerting and debugging high volume production systems
- Experience with databases (we use PostgreSQL and Clickhouse)
- Experience with monitoring and logging tools like Prometheus and Grafana
- Experience with containerization and orchestration technologies, such as Docker and Kubernetes
- Strong interpersonal and communication skills, demonstrating empathy, teamwork and a sense of ownership
What the job involves
- Cloudflare’s Engineers build and operate the software that helps power 25+ million Internet properties and millions of businesses around the world
- Across our engineering organizations, we have opportunities for high caliber, curious and empathetic people to take on big challenges and build some of the best skills in the industry
- We’re looking for talented team members to help build high-growth products, help scale our expanding network, build tools to improve availability, performance, uptime, and response times, and make systems failure-resistant and ready-to-scale
- Cloudflare is a system spanning the globe, on a mission to make the Internet better, safer, and more powerful every day
- As a Software Engineer at Cloudflare, you’ll work on the code that runs close to the end user, runs at a massive scale, and is deployed to 330+ cities around the world
- We are looking for a talented Systems Engineer to join the Load Balancing team
- You will work on a range of microservices written mainly in Go
- Technologies we use include Docker, Go, PostgreSQL, Redis, gRPC, Kafka, Clickhouse and the usual Unix/Linux tools and workflows
- We strive to build reliable, fault-tolerant systems that can operate at Cloudflare’s scale
- You will join a team of bright, hard-working, and supportive engineers who are passionate about their craft, and you will be comfortable operating in a fast-paced but sane work environment
- Design, implement, and maintain the software systems that comprise Cloudflare’s Load Balancing product
- Participate in all stages of the software development lifecycle, from designing and documenting systems to writing code, automated tests, and monitoring production deployments
- Collaborate with internal teams, including security, network engineering, SRE, and product management, to design scalable solutions to difficult technical problems
- Review work from your peers throughout all stages of the development lifecycle to ensure high-quality, maintainable code
- Mentor team members and work with support teams to ensure customer delight and bring out the best in everyone
- Debug issues in complex systems and contribute to the maintenance and improvement of operational health
- Work with a wide range of technologies and programming languages, including Go, Rust, and Typescript, as well as various databases (SQL and No-SQL), Docker, and Kubernetes
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
- Competitive pay: We offer a competitive total rewards package, where every employee is an owner of our stock.
- 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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