Backend Engineer (m/f/d)

ARC lntelligence GmbH

  • Berlin
  • Post Date: 25. September 2025
Job Description

ARC Intelligence delivers the next generation of financial intelligence to CFOs and finance teams. Our AI-powered platform consolidates data from ERPs, CRMs, spreadsheets, and other sources into a unified semantic layer—enabling automated reporting, forecasting, and insights.

We're looking for inventive engineers who thrive in a startup environment and want to shape a product that's redefining how companies harness financial data.


  • End-to-End Ownership: Design, implement, and ship new features across the stack—from APIs and database schema changes to contributions to our agentic LLM system.
  • Backend Development: Build and maintain Python services (Django REST or FastAPI), ensuring secure, scalable data access and business logic.
  • Data Integration: Connect with third-party systems (ERPs, CRMs, authentication providers) and internal pipelines; guarantee data integrity and efficient synchronization.
  • LLM & AI Features: Collaborate with our AI team to integrate large language models for natural-language querying and autonomous agents.
  • Quality & Testing: Write and maintain unit, integration, and end-to-end tests; uphold code quality through CI/CD pipelines and reviews.
  • Performance & Reliability: Monitor and optimize backend systems for responsiveness, stability, and scalability.
  • Collaboration: Work closely with product managers, data engineers, and QA; mentor junior engineers and shape best practices.

Technical Skills

  • 3+ years of experience building production services in Python (Django, Flask, or FastAPI).
  • Strong SQL skills and experience with ORMs (SQLAlchemy, Django ORM).
  • Track record of designing RESTful/GraphQL APIs and integrating third-party services (OAuth2, API keys).
  • Exposure to LLM applications (ideally agentic systems and LLMOps).

Engineering Practices

  • Proficiency with Git, CI/CD (GitHub Actions, GitLab CI), containerization (Docker), and cloud deployment (AWS, GCP, or Azure).
  • Familiarity with testing frameworks, code reviews, and writing maintainable, well-documented code. Architecture & Systems
  • Understanding of multi-tenant architectures, trade-offs between monoliths and microservices, and common design patterns.
  • Experience working with cloud providers at scale.

Soft Skills

  • Strong problem-solving mindset and clear communication in English (German a plus).
  • Ability to thrive in a fast-paced startup and navigate ambiguity with confidence.

Nice to Have

  • Knowledge of infrastructure as code (Terraform, CloudFormation).
  • Previous experience with SaaS finance applications.
  • Familiarity with AI/ML tooling (e.g., OpenAI Agents SDK).

  • Competitive salary and equity package.
  • Flexible hybrid work model.
  • Learning budget for conferences, courses, and certifications.
  • Modern tech stack with cutting-edge AI/ML tools.
  • A collaborative culture with hackathons, lunch-and-learns, and offsites.
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