Senior Backend Developer (Python) – Innovation Division

The Opportunity We are establishing a cutting-edge technology division within a globally traded public company. We are building a global product from the ground up, combining the financial stability of a major corporation with the agility and technological depth of a startup.

The Role This is a 100% hands-on position for a Senior Backend Engineer who breathes code and architecture. You will be responsible for the core logic, state management, and integrity of a complex, event-driven system. We are dealing with unstructured data, massive operational flows, and advanced AI integration.

Core Responsibilities

• High-Scale Production Engineering: Develop robust Python backend services (this is not a POC environment; we build for scale).
• Event-Driven Architecture: Design and maintain systems focused on persistent state, complex event ordering, and exact-once processing (handling idempotency and deduplication).
• Complex Data Handling: Build operational pipelines that ingest and process unstructured data (free text, emails, messaging).
• System Integrity: Ensure absolute data accuracy and consistency, enabling full system explainability.
• Integration Layer: Manage the Node.js layer for external communication channels (WhatsApp protocols and session management).

Requirements

• 6+ Years Experience: Proven track record in Backend development.
• Python Expertise: Deep knowledge of Python in production environments, specifically within Event-Driven Architectures.
• Database Mastery: Hands-on experience with PostgreSQL, MongoDB, or Redis.
• Architectural Depth: Strong understanding of distributed system challenges: state persistence, failure handling, and concurrency.
• Ownership: Ability to work independently and own the lifecycle of a live, critical system.

Significant Advantages (Tech Stack)

• Experience with GraphDB and modeling complex entity relationships.
• Knowledge of GraphRAG (Retrieval-Augmented Generation) or Explainable AI.
• Background in NLP and processing unstructured text documents.
• Experience integrating with WhatsApp API or complex Email systems.
• Familiarity with OCR technologies (processing invoices/certificates).