Senior Software Engineer (Content Delivery & Security)

bunny.net; London; Remote; USD 70,000 - 110,000; Full time

Job summary

bunny.net seeks a Senior Software Engineer specializing in Content Delivery & Security to innovate and improve their edge security systems. You will be pivotal in designing performant CDN and DNS solutions, optimizing protocols, and collaborating with engineers to enhance safety measures against cyber threats. This fully remote role offers flexibility and comprehensive benefits including a home office budget and wellness support.

Benefits

100% flexible working hours

Medical, dental, and vision insurance

25 days paid vacation plus public holidays

Parental leave with flexible scheduling

Home office budget of €500

Paid sick leave

Mental health support via BetterHelp

Wellness budget of €480

Educational budget of €500 for learning resources

Qualifications

• Proven experience working on CDN, edge computing, or distributed systems products.
• Strong programming skills in .NET (C#), Java, or similar.
• Prior experience in cybersecurity-related field.

Responsibilities

• Design and build core features for CDN and DNS products.
• Implement WAF and DDoS mitigation capabilities in real time.
• Collaborate to refine TLS/SSL and TCP configurations.

Skills

Programming skills in backend languages

Understanding of HTTPS, TCP, DNS protocols

Experience with WAF and DDoS mitigation

Problem-solving in distributed systems

Job description

Social network you want to login/join with:

Senior Software Engineer (Content Delivery & Security), London

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Client:

bunny.net

Location:

London, United Kingdom

Job Category:

Other

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EU work permit required:

Yes

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Job Reference:

3384ef32c222

Job Views:

7

Posted:

22.06.2025

Expiry Date:

06.08.2025

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Job Description:

We are on a mission to help build and accelerate the internet of tomorrow. We obsess about customer experience and strive towards constant innovation, with the goal of helping companies and developers build a faster, safer, and more reliable internet.

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 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?

At bunny.net, we invest in you. We want to provide meaningful benefits while helping you maintain a healthy work & personal life.

• 100% flexible working hours -Work from anywhere, on your own schedule.
• Medical, dental, and vision insurance -Coverage worldwide.
• Paid time off -Love visiting the seaside? No problem. We do too. We offer 25 days of paid vacation (plus your local public holidays).
• Parental leave -Bonding with the little ones is super important, so we offer parental leave and flexible scheduling to ease into parenthood.
• 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.
• 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 -A dedicated yearly learning and educational budget of €500 for books, seminars, and online courses to keep your learning on track.