Senior Backend Engineer (Berlin)

GeneralMind; Berlin; Vor Ort; EUR 110.000 - 160.000; Vollzeit

Zusammenfassung

GeneralMind, a Berlin-based AI startup, is seeking a Senior Backend Engineer to own the entire backend stack. You will shape architecture, build robust Python services, and design durable Temporal workflows with a strong emphasis on reliability and observability.

You will work directly with founders as a senior individual contributor, helping define the roadmap and building a team around it. The role requires a passion for end-to-end ownership and delivering durable, scalable backend systems.

Qualifikationen

• 6+ years building and operating backend systems in Python.
• Clear ownership of production services, not just feature delivery.
• Experience with Temporal or a comparable workflow engine in production.
• Prioritize reliability, idempotency, retries, and observability in design.
• End-to-end ownership of the backend, including architecture and evolution.

Aufgaben

• Own the backend end-to-end: architecture, API design, reliability posture, and long-term technical direction.
• Define how components fit together and guide other engineers on ownership boundaries.
• Set and maintain code quality, service boundaries, and shared abstractions across the team.
• Make foundational decisions with clear rationale and evolve them as the system grows.

Kenntnisse

Python

Async vs Sync

Observability

System design

Tools

Temporal

Jobbeschreibung

GeneralMind is a Berlin-based AI startup building an autonomous AI-powered supply chain automation platform. Backed by Lakestar, Leo Capital, and leading angels with $12M raised in January 2026, we're eliminating manual, inbox-driven workflows in enterprise supply-chain operations - automating Sales Order processing, Purchase Order lifecycle management, Accounts Payable, and Accounts Receivable. We integrate with SAP, Oracle, Microsoft Dynamics, and Salesforce, serving companies like a $16B food retailer and an $8.2B resources company.

About the Role

We are looking for a Senior Backend Engineer who is both broad and deep - someone who can hold the whole backend in their head and make good decisions across it, while also bringing a genuine spike that makes us meaningfully better in an area we're not yet strong in. That spike is the differentiator. Great engineering fundamentals get you to the interview. The thing you're unusually good at is what gets you the role.

This role sits at the intersection of two things that are rarely mastered together: building robust, production-grade Python services and designing durable, observable workflow systems with tools like Temporal. But more than the specific technologies, we're looking for someone with the ownership instinct and the range to become the de facto owner of our entire backend - its architecture, its reliability, and its evolution.

You will be a senior individual contributor working directly with the founders. The person in this role won't be handed a roadmap - they'll help define it, and build the team around it.

What You Will Do

Own the backend end-to-end: service architecture, API design, reliability posture, and long-term technical direction.

Be the person who knows how everything fits together - and who other engineers come to when they're not sure where something belongs.

Set the bar on code quality, service boundaries, and shared abstractions across the engineering team.

Make foundational decisions with conviction, document the reasoning, and evolve them as the system grows.

Python Services & Production Systems

Design for failure: retries, timeouts, graceful degradation, and recovery paths built in from the start.

Write code that is easy to operate - observable, testable, and straightforward to debug at 2am.

Understand the runtime, not just the framework. Know when the problem is the code, the config, or the infrastructure.

Workflow Engineering & Temporal

Design and build durable workflows using Temporal - long-running processes, async coordination, saga patterns.

Own workflow observability: know when a workflow is stuck, degraded, or silently wrong before a customer notices.

Think carefully about idempotency, failure modes, and replay semantics — not just the happy path.

Evolve workflows without breaking running instances; manage versioning with intention.

Reliability & Systems Thinking

Detect regressions before they become incidents; build the tooling to catch them early.

Own the operational posture of the services you build: alerting, runbooks, on-call readiness.

Identify structural debt before it compounds; propose refactors that are thoughtful, not just correct.

What We Are Looking For

Experience: 6+ years building and operating backend systems in Python, with clear ownership of production services - not just feature delivery.

Python depth: Non-negotiable. You make deliberate choices about async vs. sync, framework selection, and performance tradeoffs. You know the language well enough to have opinions.

Temporal or equivalent: You've used Temporal (or a comparable workflow engine) in production. You understand durable execution, not just task queues.

Reliability instinct: Idempotency, retries, and observability are part of how you design, not afterthoughts.

End-to-end ownership: You're comfortable being the person who holds the full backend picture. You identify what's broken or missing before you're asked, and you don't leave the system worse than you found it.

A real spike: We're a strong team with broad coverage. What we're hiring for is someone who brings a 10x improvement in an area we're currently underinvested in. That might be workflow systems, data infrastructure, AI-native backend patterns, or deep domain expertise. We don't know exactly what shape it takes - but you should know what yours is, and be able to articulate why it matters.