Senior Software Engineer (Content Delivery & Security)

Senior Software Engineer (Content Delivery & Security) role at bunny.net

Our stack handles millions of requests per second across 119+ PoPs on six continents. Your job? Making it faster, safer, and more efficient.

As a Senior Software Engineer on our Content Delivery & Security team, you’ll work on core CDN and DNS systems while helping build out our greenfield Shield product, focused on WAF, DDoS mitigation, and bot protection at a global scale.

You’ll design and optimize low-level systems that accelerate clean traffic and stop attacks in real time, fine-tuning for latency, resilience, and performance at the edge.

If you like digging deep into protocols, tuning performance at the edge, and building robust systems that hold up under real-world high-volume traffic, this role is for you.

What will you do?

• Design and build core features for our CDN, DNS, and Shield products with a focus on performance, scalability, and security
• Collaborate across teams to evolve distributed systems for content delivery and edge security
• Write and maintain code that processes millions of requests per second with low latency and high availability
• Implement and evolve our WAF, DDoS mitigation, and bot detection capabilities in real time at the edge
• Work closely with network and security engineers to refine our TLS/SSL, HTTPS, TCP, and reverse proxy configurations
• Diagnose and solve complex problems in large-scale distributed systems and networking stacks

What will you bring?

• Proven experience working on CDN, edge computing, or other distributed systems products
• Strong programming skills in one or more backend languages such as .NET (C#), Java, or similar
• Deep understanding of HTTPS, TCP, DNS, TLS/SSL protocols, and reverse proxy technologies like Nginx
• Prior experience in a cybersecurity-related field and working knowledge of WAF/DDoS techniques
• Track record of delivering reliable, scalable, and secure systems under real-world traffic conditions
• Willingness to learn, adapt, and contribute to a fast-evolving technical stack

What will make us extra happy?

• Hands-on experience or knowledge of WAF, DDoS mitigation, and bot detection technologies
• In-depth knowledge of DNS standards and scalability challenges
• Strong communication skills to clearly share complex technical ideas within and across teams
• Passion for optimizing performance and security at the edge
• Familiarity with content delivery architectures and reverse proxy tuning

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 - 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.

Seniority level

• Mid-Senior level

Employment type

• Full-time

Job function

• Engineering and Information Technology

Industries

• Technology, Information and Internet