Senior Software Engineer (Content Delivery)

About bunny.net

Some people accept the internet as it is. We see what it could be.

At bunny.net, we don’t wait for change. We make it happen. You won’t find layers of red tape or play-it-safe thinking here. You’ll find people who move quickly, take ownership, and push ideas all the way to the edge. Literally.

You’ll build things that solve actual problems, not add to them.

We’re not perfect, and we don’t pretend to be. But we’re always improving. We’re looking for people who want to do the same, who take pride in their work, and aren’t afraid to challenge what’s possible.

Because everyone deserves a better internet. And we’re here to help it hop faster.

Senior Software Engineer ( Content Delivery & Security)

Our CDN delivers millions of requests per second from 119+ PoPs worldwide, and we’re relentlessly tuning every layer to perform faster, smarter, and more efficiently at scale.

As a Senior Software Engineer on our Content Delivery & Security team, you’ll work on the backend stack behind our CDN and authoritative DNS, while contributing to Bunny Shield, our greenfield edge security platform for WAF, DDoS mitigation, and bot management.

You’d be a great fit if you’re a backend engineer who’s built the systems behind a CDN: low-latency delivery, smart caching, efficient routing, and protocol-level optimization. If you know what it takes to move traffic at scale, you’ll hit the ground running.

And, if edge security is new to you, that’s okay. We’ll help you ramp up on WAFs, DDoS protection, and more, fast.

What will you do?

• Design and build core features for our CDN platform, with a focus on performance, scalability, and reliability
• Write and maintain systems that process millions of requests per second with low latency and high availability
• Collaborate across teams to evolve our distributed content delivery infrastructure
• Fine-tune protocols, routing logic, and caching systems to deliver faster experiences at the edge
• Contribute to Bunny Shield, implementing WAF, DDoS mitigation, and bot detection capabilities in real time
• Work closely with network and security engineers to refine TLS/SSL, TCP, and proxy configurations
• Diagnose and solve complex problems in large-scale distributed systems and networking stacks

What will you bring?

• Experience building CDN, edge computing, or large-scale distributed systems
• Strong backend engineering skills, meaning that you know how to take a system from design to deployment
• Strong programming skills in one or more backend languages such as .NET (C#), Java, or similar
• Familiarity with content delivery architectures and reverse proxy tuning
• A good understanding of TCP, DNS, TLS/SSL protocols, and reverse proxy technologies like Nginx
• Familiarity with WAF, DDoS mitigation, or security-minded engineering, or the curiosity to dive in and learn fast
• A track record of shipping reliable, scalable systems that hold up under real-world traffic and edge conditions
• Clear thinking around tradeoffs at scale: latency vs. throughput, caching vs. complexity, performance vs. resilience
• Great communication skills to quickly share complex technical ideas within and across teams in an async environment
• Willingness to learn, adapt, and contribute to a fast-evolving technical stack

Not sure if you check every box?

That’s okay. We care more about how you think and what you’ve built than perfect credentials. If this work sounds exciting and you're ready to grow, we want to hear from you.

What will make us extra happy?

• Passion for optimizing performance and security at the edge
• Hands-on experience or knowledge of WAF, DDoS mitigation, and bot detection technologies
• Solid knowledge of DNS standards and scalability challenges

Where should you be located?

All roles at bunny.net are fully remote. Work from wherever you hop best.

What's in it for you?

Life at bunny.net comes with benefits that make work (and life) better.

• 100% flexible hours - Your work, your rhythm. Whether you thrive at 3 am or on a beach at noon, we've got you.
• Remote-first by design - No offices, no commute, just the freedom to work anywhere. Miss the office? We’ll give you a 3-night voucher for visiting our headquarters .
• Performance-based bonuses - Great work pays off, and we reward impact annually.
• Medical, dental, and vision insurance - Coverage worldwide.
• Paid time off - Love the slopes or the sea? Enjoy them with 25 vacation days, plus an extra loyalty day each year, capped at 5 years (30 days total), on top of your local public holidays.
• Meeting-free Thursdays - We keep Thursdays meeting free internally so you can focus on deep work without interruptions.
• Home office budget - We believe everyone is more efficient working in a comfortable office, and we're happy to help you set it up with an annual budget of €500.
• Paid sick leave - Feeling ill? Take time off to fully recover without having to worry about your finances.
• Parental leave - Paid 16 weeks for birthing parents, 8 weeks for non-birthing parents. If your country gives more, that’s your baseline. If it gives less, we top it up. Take your leave all at once or split it across the first year for maximum flexibility. After paid leave, your local statutory rules apply.
• Annual fluffle-building - We're remote, but not distant! Once a year, we meet in a sunny location where virtual high-fives turn into real ones.
• Employee Stock Option Plan (ESOP) - Everyone at bunny.net gets a piece of the pie, starting with 0.01% equity.
• Mental health support - Feeling down? We've got your back. bunny.net provides mental health resources and help via BetterHelp.com .
• Wellness budget - An annual well-being budget of €480 is here to help you stay fresh and focused.
• Educational budget - €500 yearly for books, seminars, or online courses to keep your learning on track, work-related or not.
• Music on us -Work is better with music. Enjoy a yearly Apple, Spotify, or YouTube Premium subscription on us.