Backend Engineer

Senior / Staff Backend Engineer £136k–£180k + equity | Remote Europe or London

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I'm working with a Series A developer infrastructure startup on one of the more technically demanding backend roles I've come across this year.

The platform runs AI agents and background workflows in production, at massive scale. Some customers execute hundreds of millions of jobs per month. The team is ~13 people. There are no engineering managers. Engineers own large parts of the system and work directly with the founders on architecture.

The core challenge right now is infrastructure scale. Execution volume is growing faster than the team can build, which means the next hires are walking into a genuine distributed systems problem, not a greenfield rebuild or a dashboard feature.

What y...