Greenhouse ·
full-timeSenior Software Engineer - Addressing Team
Cloudflare · Hybrid
Cloudflare operates a global network that provides security, performance and reliability services for websites and internet applications without requiring customers to install hardware or software. The Addressing team builds the core software that manages IP address allocation, traffic engineering and BGP control for Cloudflare’s edge infrastructure. As a Senior Software Engineer intern on this team, you would design and implement Go‑based microservices, create APIs and data models to handle growing addressing needs, and work with PostgreSQL, Docker, Kafka, Lua, Clickhouse, SaltStack and Prometheus. You would collaborate with system reliability, network and product engineers to understand requirements and deliver scalable, fault‑tolerant solutions that operate at Cloudflare’s scale. The role suits candidates with experience in system programming languages such as Go, Python or C/C++, solid Unix/Linux development skills, a curiosity to learn new technologies, and the drive to take ownership of features from concept to production.
About Us At Cloudflare, we are on a mission to help build a better Internet. Today the company runs one of the world’s largest networks that powers millions of websites and other Internet properties for customers ranging from individual bloggers to SMBs to Fortune 500 companies. Cloudflare protects and accelerates any Internet application online without adding hardware, installing software, or changing a line of code. Internet properties powered by Cloudflare all have web traffic routed through its intelligent global network, which gets smarter with every request. As a result, they see significant improvement in performance and a decrease in spam and other attacks. Cloudflare was named to Entrepreneur Magazine’s Top Company Cultures list and ranked among the World’s Most Innovative Companies by Fast Company. At Cloudflare, we’re not looking for people who wait for a polished roadmap; we’re looking for the builders who see the cracks in the Internet that everyone else has simply learned to live with. We value candidates who have the instinct to spot a "normalized" problem and the AI-native curiosity to create a solution using the latest tools. Our culture is built on iteration, leveraging AI to ship faster today to make it better tomorrow, while ensuring that every improvement, no matter how small, is shared across the team to lift everyone up. If you’re the type of person who values curiosity over bureaucracy, and that AI is a partner in solving tough problems to keep the Internet moving forward, you’ll fit right in. Available Locations: Austin, TX | London , UK | Lisbon , Portugal About the Team Cloudflare operates one of the largest and most interconnected anycast networks on the Internet. To make that happen, a complex orchestra of IP address configuration and distributed systems need to be in harmony to deliver packets from users, through our edge network and then onwards to our customers origin servers or networks. On the Addressing team, you will architect, program, and maintain core software services that enable large corporate networks to be protected by Cloudflare. Recent projects range from IP conservation efforts, supporting use cases for Policy driven IP address assignment, designing traffic engineering tools that improve the quality of service for billions of users around the world, and building customer APIs to control BGP dynamically. The Addressing team works closely with our system reliability engineers, network engineers and product engineering teams to build automated systems that span the entire Cloudflare stack. About the role We are looking for talented Software Engineers to join our small but growing team. You will work on a range of microservices written mainly in Go. You’ll be designing and developing new APIs and data models to manage our rapidly expanding addressing needs. The ever growing suite of Cloudflare products and services means our addressing tools are always evolving. You will have the opportunity to take on very impactful projects critical for Cloudflare. You will spend time learning the inner workings of our edge routers, servers, DNS and IP provisioning pipelines. You will work closely with other engineers to understand their needs and create scalable platforms to be used across the company. Some of the technologies we use include Go, PostgreSQL, Docker, Kafka, Lua, Clickhouse, SaltStack, Prometheus and the usual Unix/Linux tools and workflows. We strive to build reliable, fault-tolerant systems that can operate at Cloudflare’s scale. Examples of desirable skills, knowledge, and experience You are naturally curious and willing to take a step to learn something you don’t have experience in You lead. We are a growing team and you will have a huge role shaping our products, tools and system designs from the ground up You have experience writing high-quality code in one or more system programming languages (Go, Python, C/C++) You have experience with modern Unix/Linux development and runtime environments You have a solid understanding of TCP/IP and basic networking in general You have a basic understanding of the HTTP/S/TLS stack You have a working knowledge of SQL and relational databases such as PostgreSQL or MySQL You have experience building and operating distributed systems You have excellent debugging skills and attention to detail when breaking down problems Bonus Points Experience working with Go Experience working with Rust Familiarity with UI design, workflows and implementation Familiarity with anycast or multi-site unicast networks Knowledge of DNS and DNS based traffic management techniques (e.g geo DNS) What Makes Cloudflare Special? We’re not just a highly ambitious, large-scale technology company. We’re a highly ambitious, large-scale technology company with a soul. Fundamental to our mission to help build a better Internet is protecting the free and open Internet. Project Galileo : Since 2014, we've equipped more than 2,400 journalism and civil society or
| Role | Senior Software Engineer - Addressing Team |
|---|---|
| Company | Cloudflare |
| Location | Hybrid |
| Compensation | Not disclosed |
| Posted | 2026-09-04 |
| Deadline | Rolling |
Typical process for this type of role
A general guide — the exact steps for this specific listing may vary; check the original posting for details.
- 1ApplicationSubmit your resume through the apply link.
- 2ScreeningRecruiter reviews your background against the role.
- 3AssessmentA technical test, assignment, or coding round, depending on the role.
- 4Interview(s)One or more rounds with the hiring team.
- 5OfferOffer letter with compensation and start date.
Before you apply
0/4Senior Software Engineer - Addressing Team at Cloudflare: frequently asked questions
- What is the salary for this role?
- Cloudflare has not stated compensation in the listing. Check the original posting or ask during the application process.
- Is the Senior Software Engineer - Addressing Team position remote, hybrid or onsite?
- The listing gives Hybrid as the location and does not state a work mode.
- What is the application deadline?
- Cloudflare has not listed a fixed deadline, so apply early in case the opening is filled.
- How do I apply for the Senior Software Engineer - Addressing Team role?
- Use the Apply button on this page. It opens the original listing on boards.greenhouse.io, where you submit your application with the company.
More at Cloudflare
Other jobs at Cloudflare
- Senior Software Engineer, Cloudflare For Saas · Hybrid
- Business Operations Manager · Hybrid
- Performance Engineer, Kernel And Memory · Hybrid
- Senior Technical Program Manager · Hybrid
- Senior Customer Engineer, Strategic Pursuits, APAC (based In India) · Hybrid
Internships at Cloudflare
Explore Related Placements
// similar opportunities
You might also like
Senior Software Engineer - Load Balancing
Cloudflare
About Us At Cloudflare, we are on a mission to help build a better Internet. Today the company runs one of the world’s largest networks that powers millions of ...
Senior Software Engineer, Cloudflare For Saas
Cloudflare
About Us At Cloudflare, we are on a mission to help build a better Internet. Today the company runs one of the world’s largest networks that powers millions of ...
Senior Software Engineer
Spotify
The Platform team creates the technology that enables Spotify to learn quickly and scale easily, enabling rapid growth in our users and our business around the ...
Senior Software Engineer
Servicenow
No description available.
Senior Software Engineer
Okta
Secure Every Identity, from AI to Human Identity is the key to unlocking the potential of AI. Okta secures AI by building the trusted, neutral infrastructure th...
Software Engineer
Cloudflare
About Us At Cloudflare, we are on a mission to help build a better Internet. Today the company runs one of the world’s largest networks that powers millions of ...
['Hybrid work mode', 'Internship']