Clera

Senior Backend Engineer

Clera
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14 hours ago
Munich, GermanySenior

Responsibilities

  • Design and operate a tool gateway exposing connected APIs and MCPs through a composable Python SDK, including routing, authentication, rate limits, and reliability.
  • Run persistent, isolated Linux sandboxes for workspaces with attention to security, autoscaling, and cost.
  • Build and maintain durable, high-performance data systems for multi-tenant workspace state and persistence.
  • Investigate integration failures and improve system design to prevent recurrence.
  • Collaborate with company leadership and users to make technical decisions and deliver improvements quickly.

Requirements

  • 3 to 10+ years of experience building and operating production backend systems.
  • Strong experience with distributed systems, production reliability, and designing for failure at scale.
  • Hands-on expertise with sandboxing and OS-level isolation, including containers, Linux internals, and safely running untrusted code.
  • Experience building Python services and working with infrastructure such as Modal.
  • Practical experience with OAuth, webhooks, rate limits, and third-party API integrations.
  • Experience designing multi-tenant systems with strong attention to durability, cost, and limiting failure impact.
  • Background in infrastructure, platform, developer tools, or code execution systems, with the ability to learn and ship in a fast-moving environment.

Benefits

  • Visa sponsorship is not available.
  • On-site in Munich, Germany, with Warsaw, Poland also listed as a work location.

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