SDE III/Backend Engineer - Java/Python

About the Role:

We are looking for a Senior Backend Engineer to build the core backend platform powering AI agents. You will design and develop scalable distributed systems, workflow orchestration, tool execution services, event-driven architectures, and APIs that enable AI agents to safely interact with business applications.

This is a hands-on individual contributor role requiring strong backend engineering and system design expertise.

Responsibilities:

• Design and build scalable backend services and microservices.
• Develop REST APIs, workflow engines, background workers, queues, and event-driven systems.
• Build reliable backend infrastructure with retries, observability, logging, access control, and fault tolerance.
• Integrate with third-party APIs and internal business systems.
• Work with AI engineers to enable tool calling, function calling, RAG workflows, and LLM orchestration.
• Optimize performance, scalability, and production reliability.

Required Skills:

• 58 years of backend development experience.
• Strong proficiency in Java, Python, or Node.js.
• Hands-on experience with Microservices, Distributed Systems, REST APIs, and System Design.
• Experience with PostgreSQL, MongoDB, Redis.
• Experience with Kafka, RabbitMQ, or other event-driven messaging systems.
• Strong knowledge of Docker, Kubernetes, and AWS/GCP.
• Understanding of scalable backend architecture, asynchronous processing, caching, and observability.

Preferred Skills:

• Experience with LangChain, LangGraph, LlamaIndex, or similar LLM orchestration frameworks.
• Knowledge of OpenAI/Anthropic APIs, RAG, Function Calling, Tool Calling, Vector Databases (Pinecone/Qdrant), and AI Agent workflows.
• Experience building production-grade backend platforms for AI or workflow automation.

What We're Looking For:

• Strong problem-solving and system design skills.
• Passion for building reliable, scalable backend platforms.
• Experience working on high-scale production systems.
• Ability to own features end-to-end and collaborate with cross-functional teams.