--- title: 'Senior Software Engineer - Load Balancing at Cloudflare' canonical: 'https://feeny.ai/job/senior-software-engineer-load-balancing-cloudflare-ygr859mj181k' type: 'job' last_seen: '2026-09-23' --- # Senior Software Engineer - Load Balancing at Cloudflare - **Company:** Cloudflare - **Work type:** hybrid - **Posted:** 2026-09-22 - **Last confirmed live:** 2026-09-23 - **Apply:** https://boards.greenhouse.io/cloudflare/jobs/8212352?gh_jid=8212352 ## Job description ## 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 Texas ## About Engineering at Cloudflare 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](https://www.cloudflare.com/network/) around the world. ## Role Summary 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. You can learn more about our product and the work our engineers do on our blog: https://blog.cloudflare.com/eliminating-hardware-with-load-balancing-and-cloudflare-one/ https://blog.cloudflare.com/extending-local-traffic-management-load-balancing-to-layer-4-with-spectrum/ https://blog.cloudflare.com/load-balancing-monitor-groups-multi-service-health-checks-for-resilient/ ## Role Responsibilities - 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. ## Role Requirements - 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 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](https://blog.cloudflare.com/protecting-free-expression-online/): Since 2014, we've equipped more than 2,400 journalism and civil society organizations in 111 countries with powerful tools to defend themselves against attacks that would otherwise censor their work, technology already used by Cloudflare’s enterprise customers--at no cost. [Athenian Project](https://www.cloudflare.com/athenian/): In 2017, we created the Athenian Project to ensure that state and local governments have the highest level of protection and reliability for free, so that their constituents have access to election information and voter registration. Since the project, we've provided services to more than 425 local government election websites in 33 states. [1.1.1.1](https://1.1.1.1/): We released[1.1.1.1](https://1.1.1.1/) to help fix the foundation of the Internet by building a faster, more secure and privacy-centric public DNS resolver. This is available publicly for everyone to use - it is the first consumer-focused service Cloudflare has ever released. Here’s the deal - we don’t store client IP addresses never, ever. We will continue to abide by our[privacy commitment](https://developers.cloudflare.com/1.1.1.1/privacy/public-dns-resolver) and ensure that no user data is sold to advertisers or used to target consumers. Sound like something you’d like to be a part of? We’d love to hear from you! Please note that applicants who progress to the offer stage of the interview process may be asked to attend an in-person interview within one of the Cloudflare Offices or Cloudflare Hubs.  More details about this will be available at that stage of the interview process. This position may require access to information protected under U.S. export control laws, including the U.S. Export Administration Regulations. Please note that any offer of employment may be conditioned on your authorization to receive software or technology controlled under these U.S. export laws without sponsorship for an export license. Cloudflare is proud to be an equal opportunity employer.  We are committed to providing equal employment opportunity for all people and place great value in both diversity and inclusiveness.  All qualified applicants will be considered for employment without regard to their, or any other person's, perceived or actual race, color, religion, sex, gender, gender identity, gender expression, sexual orientation, national origin, ancestry, citizenship, age, physical or mental disability, medical condition, family care status, or any other basis protected by law. We are an AA/Veterans/Disabled Employer. Cloudflare provides reasonable accommodations to qualified individuals with disabilities.  Please tell us if you require a reasonable accommodation to apply for a job. Examples of reasonable accommodations include, but are not limited to, changing the application process, providing documents in an alternate format, using a sign language interpreter, or using specialized equipment.  If you require a reasonable accommodation to apply for a job, please contact us via e-mail at hr@cloudflare.com or via mail at 101 Townsend St. San Francisco, CA 94107. ## About Cloudflare ## Company Overview - **One-liner**: Cloudflare operates one of the world's largest global networks, providing security, performance, and reliability services to help build a better Internet. - **Entity Type**: Public (NYSE: NET) - **Headquarters**: San Francisco, California, USA (with major hubs in London, Lisbon, Singapore, Sydney, and others) - **Founded**: 2009 - **Founders**: Matthew Prince, Michelle Zatlyn, and Lee Holloway ## Core Business - Primary industry: Cybersecurity, Content Delivery Network (CDN), Cloud Computing, and Network Services - Target customers: Independent developers, SMBs, mid-market companies, and the world's largest enterprises (B2B, B2C) - Mission: To help build a better Internet, making it more secure, faster, and more reliable for everyone ## Products & Services - **Cloudflare Security (WAF, Bot Management, DDoS Mitigation)**: Protects websites and applications from attacks, leveraging threat intelligence from proxying ~20% of the web's traffic. - **Cloudflare CDN & Performance (Argo, Stream, Images)**: Accelerates content delivery and optimizes website performance globally across 335 cities in over 125 countries. - **Cloudflare Workers**: A serverless platform that runs code at the edge using V8 isolates, allowing developers to build and deploy full-stack applications globally with zero cold starts. - **Cloudflare Zero Trust (SASE/SSE)**: Connect and secure employees, devices, networks, and apps everywhere with a unified, Internet-native security platform. - **Cloudflare R2 Storage**: Object storage compatible with S3, with no egress fees. - **Cloudflare AI (Workers AI, AI Gateway)**: Deploy and run AI models at the edge, with built-in inference and a generous AI credits stipend for employees. - **Other Services**: DNS, Load Balancing, SSL/TLS, Email Security, Durable Objects, Queues, and more (60+ services total). ## Market Standing - **Valuation/Market Cap**: Publicly traded; market cap fluctuates (e.g., ~$25B-$35B range in recent years, check current). - **Key Metric**: Annual revenue (publicly reported; most recent fiscal year ~$1.3B+). Services an average of 102 million HTTP requests per second. - **Notable Investors/Partners**: IPO on NYSE in 2019. Key partners include major cloud providers, ISPs, and technology vendors (e.g., Microsoft, Google Cloud, AWS, Nvidia). Original investors include NEA, Pelion Venture Partners, and others. - **Growth Signals**: Thousands of new customers sign up daily; constant headcount growth (3,800+ employees across 30+ countries and growing); expanding into AI and Zero Trust markets; named a Top 100 Most Loved Workplace for three consecutive years (2022, 2023, 2024). ## Competitive Advantages - **Massive Global Network**: 335+ cities, 125+ countries — within milliseconds of nearly everyone on Earth, making it impossible for competitors to replicate this scale quickly. - **Unified Platform**: 60+ services integrated on a single connectivity cloud — customers get security, performance, and development capabilities in one place. - **Built-in Threat Intelligence**: Proxying ~20% of the web's traffic provides a unique advantage in detecting and stopping emerging threats before they reach customers. - **Developer-First Edge Computing**: Cloudflare Workers (using V8 isolates) enables full-stack development at the edge with zero cold starts, a significant performance and cost advantage over Lambda-based competitors. - **Open & Transparent Culture**: Known for transparency, including public-facing feature roadmaps and a strong commitment to Internet governance. Recognized as a Most Loved Workplace. ## Strategic Focus - **Zero Trust & SASE**: Dramatically expanding enterprise security offerings (Cloudflare One, Zero Trust), competing with Zscaler, Palo Alto Networks, and others. - **AI at the Edge**: Building a platform for deploying AI models globally (Workers AI, AI Gateway), positioning to be the "GPU cloud" for the edge. - **Developer Platform Growth**: Doubling down on making Workers and the developer ecosystem the default platform for building modern applications. - **Network Expansion**: Continuously expanding into new cities and geographies (ME, Africa, APAC). - **Performance & Reliability**: Improving core network performance and reliability while maintaining cost leadership. ## Why Work Here - **Culture**: Principled, transparent, curious, and inclusive. Named one of the Top 100 Most Loved Workplaces (2022-2024) and Most Loved Workplace for Parents, Caregivers, Young Professionals, and LGBTQ+. - **Hybrid Work Model**: Offers three flexible arrangements: In-Hub (split time between home and office), Hybrid (work from a hub a few days a week), and Distributed (fully remote within country of employment). Each team sets its own cadence. - **Compensation**: Competitive total rewards package — every employee is an owner of the company stock (RSUs). Generous AI credits stipend for professional development. - **Benefits**: Paid maternity & paternity leave (up to 16 weeks), take-what-you-need vacation, comprehensive healthcare (medical, dental, vision), commuter program, wellbeing support (mental health, childcare, family forming), and pension plans. - **Engineering Culture**: An engineering-first company ("still an engineering company at our core"), where code deployments affect millions of Internet properties globally within seconds. Fast-paced, high-impact environment. - **Global & Diverse**: Employees come from all walks of life across 30+ countries; Employee Resource Groups (ERGs) foster belonging. Strong onboarding program for new hires. - **Growth Potential**: Constant growth and new product launches mean employees can work on cutting-edge problems (AI, Zero Trust, edge computing). Fast feedback loops and direct impact. ## Sources 1. [cloudflare.com](https://www.cloudflare.com/about/) 2. [cloudflare.com](https://www.cloudflare.com/careers/) 3. [cloudflare.com](https://www.cloudflare.com/careers/life-at-cloudflare/) 4. [cloudflare.com](https://www.cloudflare.com/careers/jobs/) 5. 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