Senior Backend Engineer

About Aracor

Aracor is on a mission to build a world-class product that will redefine dealmaking. Our AI-native platform helps in-house legal teams manage thousands of pages of documents with greater speed and precision, uncovering key insights and risks in seconds.

The Role

We are seeking a Senior Backend Engineer to design, build, and scale the backend architecture powering Aracor's AI-driven legal platform. Reporting to the Engineering Lead, you will own the backend and API layers end-to-end from refining our proof-of-concept into production-grade services to designing data models, integrations, and performance-critical systems.

You will work closely with frontend, QA, and AI engineers to deliver reliable APIs, secure data handling, and efficient service orchestration. This is a hands-on role for an engineer who can take technical ownership, shape platform foundations, and implement best practices for scalable, maintainable software systems.

Responsibilities

• Design, develop, and maintain scalable backend services using Python (FastAPI, Dramatiq) and modern architectural patterns. Implement well-structured REST and asynchronous APIs driven by OpenAPI specifications, ensuring contract consistency and backward compatibility.
• Evolve the existing proof-of-concept into robust, production-ready components with clear boundaries, interfaces, and observability.
• Design and optimize data models using PostgreSQL for relational data and Qdrant for vector-based search. Ensure performance, scalability, and consistency across high-volume workloads involving document metadata, embeddings, and structured content.
• Collaborate with AI engineers to design retrieval and indexing mechanisms for hybrid RAG workflows. Work with AI engineers to expose model orchestration and retrieval layers through well-defined interfaces.
• Collaborate with front-end and QA engineers to ensure API usability, performance, and testability.
• Contribute to system design discussions and translate product requirements into reliable backend services.
• Ensure secure, compliant, and maintainable implementations, including authentication (OIDC / SSO), role-based access control (RBAC / ABAC), and data protection principles.
• Apply best practices in test-driven development, code reviews, and CI / CD integration.
• Implement observability through structured logging, metrics, and tracing (OpenTelemetry, Prometheus, Grafana).
• Profile and optimize performance across API endpoints and data flows.
• Contribute to automation, deployment, and release management using GitHub Actions and Argo CD. Propose architectural improvements, automation, and tools to streamline development workflows.
• Help document design decisions (RFCs, ADRs) and maintain high standards for maintainability and reliability.

Qualifications

Advantageous Experience

What We Offer