Python Backend Engineer

TechDigital Group; San Jose (CA); On-site; USD 100,000 - 130,000; Full time

Job summary

TechDigital Group is seeking a Python Backend Engineer in San Jose, California. The ideal candidate will develop high-performance APIs and integrate cutting-edge AI functionalities while ensuring robust infrastructure. Required skills include expertise in Python, experience with FastAPI and Django, and a strong understanding of SQL and NoSQL databases. This role offers the opportunity to work on complex architectural challenges at the forefront of technology.

Qualifications

• Expert-level proficiency in Python 3.10+.
• Deep experience with FastAPI and Django frameworks.
• Familiarity with tools like LangChain or LlamaIndex for AI workflows.
• Strong SQL and NoSQL database knowledge, particularly PostgreSQL, Redis, MongoDB.
• Proficient in Docker, AWS, GCP, and asynchronous task queues.

Responsibilities

• Design, build, and maintain high-throughput APIs.
• Architect backend systems for AI agents, managing tasks and state persistence.
• Implement secure identity protocols to protect user data.
• Design efficient request routing and service communication patterns.

Skills

Expert-level proficiency in Python

Deep experience with FastAPI

Familiarity with LangChain or similar frameworks

Strong knowledge of SQL and NoSQL databases

Proficiency with Docker and cloud platforms

Tools

FastAPI

Django

PostgreSQL

Redis

MongoDB

AWS

GCP

Job description

We are looking for a Python Backend Engineer to build the backbone of our platform. You will be responsible for creating high-performance APIs, integrating advanced AI agent logic, and ensuring our infrastructure remains rock-solid as we scale. If you enjoy solving complex architectural puzzles and want to work at the intersection of traditional backend engineering and AI

Core Responsibilities

• Scalable API Development: Design, build, and maintain robust, high-throughput APIs (FastAPI, Django, or Flask) capable of handling millions of requests.
• Agent Logic Integration: Architect the backend systems that power our AI agents, managing long-running tasks, state persistence, and seamless communication between LLMs and our core services.
• Authentication & Security: Implement and manage secure identity protocols (OAuth2, JWT, OpenID Connect) to protect user data and internal endpoints.
• Routing & Orchestration: Design efficient request routing and service communication patterns using tools like API Gateways, or Service Meshes.

Required Technical Skills

• Language: Expert-level proficiency in Python (3.10+ preferred).
• Frameworks: Deep experience with FastAPI, Django
• AI Tooling: Familiarity with LangChain, LlamaIndex, or similar frameworks for agentic workflows.
• Databases: Strong knowledge of SQL (PostgreSQL) and NoSQL (Redis, MongoDB), plus experience with Vector Databases (Pinecone, Weaviate).
• Infrastructure: Proficiency with Docker, AWS/GCP, and asynchronous task queues