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Lessons from the $750 AWS Bill: Managing Massive Scale with Karam Kabbara

Event artwork for Lessons from the $750 AWS Bill: Managing Massive Scale with Karam Kabbara

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About this event

What to expect

A $750 AWS bill is the kind of wake-up call that changes how you think about cloud architecture forever. In this discussion-based meetup in Manchester, Karam Kabbara — Lead Engineer at Kraken Technologies — shares the hard-won lessons that only come from working on systems at massive scale, alongside Senior Software Engineer Danish Javed from Codurance.

Karam's journey through some of the UK's biggest tech platforms (from pricing washing machines to customising coffins, to now managing millions of connected electric vehicles) has taught him what happens when good intentions meet production realities. This isn't a lecture or sales pitch — it's a candid, facilitated Q&A where you'll hear honest war stories about building and maintaining high-concurrency systems that serve millions of users.

What You'll Learn

The session opens with the infamous $750 AWS bill story and evolves into a practical discussion about:

  • Cloud cost management: Understanding why "serverless" and "on-demand" can become expensive traps without proper guardrails and monitoring
  • Building for scale: Architectural lessons from managing millions of connected devices in production environments
  • Engineering accountability: Creating team cultures where developers take ownership of the infrastructure their code triggers
  • Modern tooling reality check: Honest perspectives on whether AI coding assistants and hyped tools are making us better engineers or just faster at breaking things

Who Should Attend

This meetup is designed for lead developers and senior engineers who care about software craftsmanship principles. If you're interested in architectural patterns, cloud cost optimisation, or learning from someone who's lived through scaling challenges at one of the UK's biggest tech success stories, this session will resonate with you.

The discussion-based format encourages participation — bring your own "war stories" about production incidents and what you learned from them. The open-floor approach means you can dig into the topics that matter most to your current challenges, whether that's managing AWS costs, handling high-concurrency scenarios, or fostering engineering accountability in your team.

Event Format

This is a conversation, not a presentation. No coding required — just bring your curiosity and willingness to share experiences. The facilitated Q&A structure ensures your questions get answered while keep

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