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Senior Backend Engineer

CleraMunich🇩🇪GermanyPosted 19 Oct 2026

Why This Role Stands Out

Elevate your career at Clera by architecting the core backend infrastructure that powers cutting-edge AI agents, offering you significant ownership and a direct impact on product reliability. This role is perfect for a seasoned engineer who thrives on solving complex challenges in distributed systems and secure sandboxing while collaborating closely with leadership to shape the future of AI-driven workflows. Apply today to join a high-growth environment where your technical expertise will drive meaningful innovation and professional advancement.

Quick Overview

Seniority
Mid Senior
Employment type
Full Time
Work mode
On Site
Location
Munich, Germany
Posted
16 hours ago
OAuthPython

Job Description

About the Role

Build and operate the backend systems that help AI agents reliably carry out work through connected tools. You will own core infrastructure across integrations, secure execution environments, and multi-tenant data, with a direct impact on product reliability and customer outcomes.

What You'll Do

  • Design and operate a tool gateway that exposes 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.

  • Find and resolve integration failures, then improve system design to prevent them from recurring.

  • Work closely with company leadership and users to make technical decisions and deliver improvements quickly.

What We're Looking For

  • 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 instincts for durability, cost, and limiting the impact of failures.

  • Background in infrastructure, platform, developer tools, or code execution systems, and an ability to learn and ship in a fast-moving environment.

Compensation & Benefits

Visa sponsorship is not available.

Location

On-site in Munich, Germany, with Warsaw, Poland also listed as a work location.