Backend Engineer - Python

Robotic Technologies Automation; Dallas (TX); On-site; USD 180,000 - 230,000; Full time

Job summary

ROBOTIC PROCESS AUTOMATION LLC in Dallas, TX is seeking a senior backend engineer to design and maintain the infrastructure that powers autonomous AI agents. You will build backend tools, APIs, and data connectors that enable robust agent tasks.

You will implement orchestration using LangChain and related frameworks, optimize RAG pipelines with vector databases, and ensure secure, scalable deployments on cloud platforms. This role blends systems engineering with AI-enabled automation.

Qualifications

• 8+ years of professional Python experience, with FastAPI, Pydantic, and Asyncio.
• Hands-on experience building backend tooling, APIs, and data integration pipelines.
• Experience with LangChain or LlamaIndex for agent orchestration.
• Proficient in PostgreSQL and vector databases; familiarity with distributed systems.
• Cloud and DevOps: Docker and Kubernetes deployment on AWS/Azure/GCP.
• Version control with Git and CI/CD best practices.

Responsibilities

• Develop and maintain backend tools and APIs used by AI agents.
• Implement orchestration frameworks for complex reasoning and multi-agent coordination.
• Build and optimize RAG data pipelines with vector databases.
• Manage asynchronous tasks using FastAPI/Asyncio and task queues.
• Ensure security, validation, and guardrails for autonomous agent actions.

Skills

Python

Async programming

API design

Distributed systems

Tools

FastAPI

Pydantic

Asyncio

LangChain

LlamaIndex

PostgreSQL

Vector Databases

Docker

Kubernetes

AWS

Azure

GCP

Git

CI/CD

Job description

• Agent Logic & Tooling:Develop and maintain the backend "tools" (APIs, scrapers, database connectors) that AI agents use to perform tasks.
• Orchestration Implementation:Use frameworks likeLangChain, LangGraph, or CrewAIto implement complex reasoning chains and multi-agent coordination.
• RAG Pipeline Engineering:Build and optimize data ingestion and retrieval systems usingVector Databases, ensuring the agent has the right context at the right time.
• Asynchronous Task Management:Manage long-running AI reasoning cycles using asynchronous Python (FastAPI/Asyncio) and task queues like Celery or Redis.
• API Architecture:Design and implement secure, high-performance REST or GraphQL APIs that serve as the interface between the agentic backend and the frontend.
• Safety & Guardrails:Implement backend-level validation and guardrails to ensure that autonomous agent actions remain within secure and ethical boundaries.

Technical Requirements

• Python Expertise:8+ years of professional experience withPython, specifically withFastAPI, Pydantic, and Asyncio.
• AI Frameworks:Hands-on experience withLangChainorLlamaIndex.
• Database Management:Proficiency inPostgreSQLand experience withVector Databases.
• Cloud & DevOps:Experience deploying containerized applications usingDockerandKuberneteson AWS, Azure, or GCP.
• Scalability:Understanding of distributed systems and how to handle the high latency and compute requirements of LLM-based applications.
• Version Control:Mastery of Git and CI/CD best practices.

Preferred Qualifications

• Knowledge ofPrompt Engineeringfrom a programmatic perspective (dynamic prompt templating).
• Familiarity with observability tools for AI, such asLangSmithorArize Phoenix.

ROBOTIC PROCESS AUTOMATION LLC is an equal opportunity employer inclusive of female, minority, disability and veterans, (M/F/D/V). Hiring, promotion, transfer, compensation, benefits, discipline, termination and all other employment decisions are made without regard to race, color, religion, sex, sexual orientation, gender identity, age, disability, national origin, citizenship/immigration status, veteran status or any other protected status. ROBOTIC PROCESS AUTOMATION LLC will not make any posting or employment decision that does not comply with applicable laws relating to labor and employment, equal opportunity, employment eligibility requirements or related matters. Nor will ROBOTIC PROCESS AUTOMATION LLC require in a posting or otherwise U.S. citizenship or lawful permanent residency in the U.S. as a condition of employment except as necessary to comply with law, regulation, executive order, or federal, state, or local government contract