Senior Python Engineer Jobs in San Jose, CA

INTRODUCTION

Hello, My name is Sreeja and I represent TestingXperts Inc. TestingXperts is a Specialist QA & Software Testing Company, and an Independent Software Testing division of Damco Group, which is a leading IT Solutions and Services company working with Fortune Enterprises globally. Inheriting the virtues of job quality and optimal user satisfaction from Damco Group, TestingXperts aims at promoting the ethics of connected innovation, thereby seeding the integral values in our employees and achieving unmatched contentment in our clients. To know more about Testingxperts Inc., please visit our website. If you are interested in the opportunity listed below, please forward your updated resume along with current contact information, or perhaps you can recommend someone who would be interested in this position. Only W2, No C2C.

ROLE

Job Title: Python Engineer
Location: San Jose, CA
F2F interview Must
No of openings/positions: 6

MANDATORY 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/Google Cloud Platform, and asynchronous task queues.

JOB DESCRIPTION

Role Overview

We are looking for a Python Developer 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, Llama Index, 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/Google Cloud Platform, and asynchronous task queues.