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Photon · 2 days ago

Backend Engineer - Python- Dallas, TX

Dallas, TX

Full-time

Onsite

Senior Level, Lead/Staff

$38K/yr - $135K/yr

8+ years exp

Photon is seeking a Python Backend Engineer to join their team building Agentic AI products. The role involves developing robust infrastructure for autonomous agents, managing complex tool integrations, and optimizing retrieval-augmented generation pipelines.

E-CommerceInformation TechnologyMobile AppsWeb DesignWeb Development

H1B Sponsor Likely

Responsibilities

Develop and maintain the backend "tools" (APIs, scrapers, database connectors) that AI agents use to perform tasks

Use frameworks like LangChain, LangGraph, or CrewAI to implement complex reasoning chains and multi-agent coordination

Build and optimize data ingestion and retrieval systems using Vector Databases, ensuring the agent has the right context at the right time

Manage long-running AI reasoning cycles using asynchronous Python (FastAPI/Asyncio) and task queues like Celery or Redis

Design and implement secure, high-performance REST or GraphQL APIs that serve as the interface between the agentic backend and the frontend

Implement backend-level validation and guardrails to ensure that autonomous agent actions remain within secure and ethical boundaries

Qualification

PythonFastAPIAsyncioLangChainPostgreSQLDockerKubernetesGitCI/CDVector DatabasesPrompt EngineeringObservability Tools

Required

8+ years of professional experience with Python, specifically with FastAPI, Pydantic, and Asyncio

Hands-on experience with LangChain or LlamaIndex

Proficiency in PostgreSQL and experience with Vector Databases

Experience deploying containerized applications using Docker and Kubernetes on AWS, Azure, or GCP

Understanding of distributed systems and how to handle the high latency and compute requirements of LLM-based applications

Mastery of Git and CI/CD best practices

Preferred

Knowledge of Prompt Engineering from a programmatic perspective (dynamic prompt templating)

Familiarity with observability tools for AI, such as LangSmith or Arize Phoenix

Benefits

Medical, vision, and dental benefits

401k retirement plan

Variable pay/incentives

Paid time off

Paid holidays

Company

Photon

Glassdoor3.6

Photon is a technology corporation that provides Strategy Consulting, Creative Design, and Technology Services to global enterprise.

Founded in 2007

London, England, GBR

5001-10000 employees

https://www.photon.in

H1B Sponsorship

Photon has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)

Distribution of Different Job Fields Receiving Sponsorship

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Trends of Total Sponsorships

2025 (233)

2024 (168)

2023 (236)

2022 (184)

2021 (157)

2020 (249)