Full-Stack AI Engineer

Posted 2 Days Ago
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Munich, Bayern, DEU
In-Office
Mid level
Artificial Intelligence • Logistics • Software • Automation
The Role
Build end-to-end AI-powered logistics features across a Python (FastAPI) backend and front-end interfaces; design multi-step AI workflows using LLM APIs and agent architectures; implement evaluation tooling; contribute to infrastructure, CI/CD, system reliability, and product direction with the founding team.
Summary Generated by Built In
The Role

Work directly with the founding team to build and ship AI-powered products that handle real logistics operations autonomously. You'll work across the full stack, from multi-channel integrations and backend services to front-end interfaces, while pushing our AI capabilities forward.

What You'll Do
  • Build end-to-end features across our Python backend (FastAPI) and front-end interfaces

  • Design and improve multi-step AI workflows that process real-world logistics data

  • Work with LLM APIs, agent architectures, and evaluation tooling in production

  • Contribute to infrastructure, CI/CD, and system reliability as we scale

  • Shape product and technical direction alongside the founders

Who You Are
  • You take full ownership, from concept to deployed, working feature

  • You move fast, iterate constantly, and know when to shift toward robust, scalable systems

  • You build with AI, not just around it. AI-native development is how you work.

  • You're comfortable with ambiguity and energized by small-team impact

What You Bring
  • Strong software engineering fundamentals: Python, JavaScript/TypeScript, SQL, REST APIs

  • Hands-on experience with LLMs: prompt engineering, API integration, evaluation, and related tooling

  • Familiarity with event-driven architectures, message queues, or background job processing is a plus

  • Experience with Docker, CI/CD, and cloud infrastructure

  • Startup mindset: resourceful, fast, biased toward shipping

Process

We move fast. Expect a decision within one week.

Step 1: Application Fill out the form with one thing we really care about: submit an AI coding session, a transcript or log from Claude Code, Cursor, Codex, or whatever tool you use to build. It can be .md, .txt, a combination of multiple sessions, or a link to a hosted artifact.

Step 2: Online Interview A single online conversation covering technical depth, problem-solving, and team fit. No multi-round gauntlet.

Step 3: Technical Session (60 min) A live coding challenge where you build a small backend service from scratch using an AI-coding assistant (we provide it). We'll observe how you work, then you walk us through your code and key decisions in the last 5 minutes.

Step 4: Decision Feedback and potential start within one week of your interview.

Skills Required

  • Python
  • JavaScript/TypeScript
  • SQL
  • REST APIs
  • FastAPI
  • Hands-on experience with LLMs (prompt engineering, API integration, evaluation tooling, agent architectures)
  • Docker
  • CI/CD
  • Cloud infrastructure
  • Familiarity with event-driven architectures, message queues, or background job processing
  • Startup mindset; ownership from concept to deployed feature
Am I A Good Fit?
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The Company
10 Employees
Year Founded: 2025

What We Do

5U AI develops digital AI workers for freight and logistics teams, automating manual operational workflows such as order entry, quoting, status updates, and customer communications. Its agents operate within existing inboxes, telephony channels, and business systems, converting unstructured emails, PDFs, spreadsheets, chats, and portal data into structured actions and handling processes continuously across logistics operations with shared operational memory and 24/7 availability.

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