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Clera

Senior Backend Engineer

Munich
Level
Senior
Work type
On-site · Munich
Visa
Not offered

Not stated in the posting: salary.

Open. First seen 19 October 2026.

Apply on the company's site →

About the role

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.

What this role asks for

Particular to this role

Linux · OAuth

Rare in Clera's other 299 open postings.

Standard for backend roles

Python

Common in backend postings at any company.

Compared with Clera's other open jobs.

The team: Engineering HIRES STEADILY

This role is one of 313 open in Engineering. 247 were posted in the last 30 days and the oldest in March: a team that hires all year rather than one being built.

WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS

LLM (145 of 313), TypeScript (136 of 313), Python (133 of 313), React (110 of 313), Machine Learning (74 of 313), PostgreSQL (59 of 313), JavaScript (56 of 313)

OTHER ROLES ON THIS TEAM

From the team and dates on Clera's own job board.

Other openings for this role

2 open postings for this role in Munich, first posted 12 October 2026. The company is likely hiring for more than one position. None has been taken down and posted again.

Salary context

52 other open postings titled Senior Backend Engineer state a salary: median USD 170,000 to USD 225,000 a year.

See Backend Engineer salaries in Germany →

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