Senior Software Engineer, Cloudflare
Web performance and security platform
Job no longer available
Web performance and security platform
1001+ employees
Job no longer available
1001+ employees
Company mission
To help build a better Internet that is bold and ambitious.
Role
Who you are
- The ideal Software Engineering candidate has a passionate curiosity about how the Internet fundamentally works and has a strong knowledge of Linux and Hardware
- We require strong coding ability in Bash, Python or Go
- We prefer to hire experienced candidates; however raw skill trumps experience and we welcome strong junior applicants
- Intermediate level software development skills in Python and Go
- Linux systems administration experience
- 5 years of relevant Development experience
- Strong skills in network services, including Rest APIs and HTTP
Desirable
- 5 years of relevant work experience
- Strong tooling and automations development experience
- Network fundamentals DHCP, ARP, subnetting, routing, firewalls, IPv6
- Configuration management systems such as Saltstack, Chef, Puppet or Ansible
- Load balancing and reverse proxies such as Nginx, Varnish, HAProxy, Apache
- SQL databases (Postgres or MySQL)
- Time series databases (OpenTSDB, Graphite, Prometheus)
- The ability to understand service and device metrics and visualize them using Grafana
- Key/Value stores (Redis, KyotoTycoon, Cassandra, LevelDB)
- Experience programming in C, C++, Rust or Go
- Experience with continuous / rapid release engineering
- Experience developing systems that are highly available and redundant across regions
- High-bandwidth transit Internetworking and routing experience
- Performance analysis and debugging with tools like perf, sar, strace, dtrace
- Experience with the Linux kernel and Linux software packaging
- Internetworking and BGP
What the job involves
- We are looking for talented Software Engineers to build and develop the platform which makes Cloudflare customers place their trust in us
- Our Infrastructure Engineering team focuses on the automation to scale our infrastructure
- You will build tools to constantly improve our scale and speed of deployment
- You will nurture a passion for an “automate everything” approach that makes systems failure-resistant and ready-to-scale
- Cloudflare Software Engineers focus on automating our infrastructure installations and decommissions at scale
- We enable our Data Centre Engineering teams by allowing them to install new data centers, replace servers and networking in existing data centers as quickly and efficiently as possible while not impacting existing infrastructure and customer services
- While our focus is on automating all infrastructure requirements, there is an element of ongoing operational support of Data Center Engineers and other teams
- We also review upcoming hardware changes and update automation and configuration management to cater to these advances
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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