Python Backend Developer

CS Solutions, Inc.

Miami, FL, United States

about 2 months ago

Role details

Contract type

Permanent contract

Employment type

Full-time (> 32 hours)

Working hours

Regular working hours

Job source

dice.com

Tech stack

Application Programming Interfaces (APIs) Artificial Intelligence User Authentication Databases Relational Databases Database Design Database Queries Dependency Injection Django Web Framework Middleware Python (Programming Language) PostgreSQL

+30 more

Microsoft SQL Server MySQL OAuth OpenID Performance Tuning Query Optimization Role-Based Access Control Openid Connect Session Management Single Sign-On Software Deployment SQLAlchemy Data Streaming Systems Integration Management of Software Versions Web Application Frameworks ReactJS Flask (Web Framework) Large Language Models Database Optimization Software Security Indexer Backend Fastapi Front End Software Development React Redux Virtual Agents Restful APIs Api Management Microservices

Job description

Design and develop scalable, production-grade backend services using Python frameworks (FastAPI / Flask / Django)
Architect, build, and integrate RESTful APIs and backend microservices with strong attention to performance, reliability, and security
Design and optimize relational database structures using PostgreSQL / MySQL / SQL Server including schema design, indexing strategies, query optimization, and data modeling
Implement robust authentication and authorization frameworks beyond basic JWT including OAuth 2.0 / OpenID Connect, SSO integrations, session management, token lifecycle (refresh/rotation/revocation), and role-based / attribute-based access control (RBAC/ABAC)
Develop responsive frontend applications using ReactJS (Hooks, state management) to support backend-driven features
Integrate AI and LLM-powered capabilities into backend services, including agentic workflows and tool-calling patterns
Apply MCP (Model Context Protocol) concepts to connect AI agents with backend services, APIs, and data sources
Collaborate with cross-functional teams on API contracts, data flows, and end-to-end feature delivery

Requirements

Python Backend (Primary): Strong, hands-on experience building backend services with FastAPI / Flask / Django async patterns, dependency injection, middleware, API versioning, testing, and production deployment
Databases: Deep practical experience with PostgreSQL / MySQL / SQL Server complex queries, joins, indexing, transactions, ORM usage (SQLAlchemy / Django ORM), and performance tuning
Authentication & Security: Demonstrated depth in auth frameworks beyond JWT basics OAuth 2.0, OIDC, SSO, RBAC, secure session handling, and API security best practices
RESTful APIs: Proven experience designing, building, and integrating REST APIs and backend services at scale
AI / Agentic AI / MCP: Solid understanding of LLM fundamentals, agentic AI architectures (planning, tool use, multi-step workflows), and the Model Context Protocol (MCP) for agent system integration; familiarity with frameworks such as LangChain / LangGraph is a strong plus
ReactJS (Secondary): Hands-on expertise with ReactJS Hooks, component lifecycle, and state management (Redux / Context API)

Candidate Profile Expectations

Backend-dominant full-stack engineer: roughly 80 90% Python/backend and 10 20% React in day-to-day work, must have AI experience.
Must be able to demonstrate, in technical conversation, real depth in Python, database design, and authentication frameworks not just frontend fluency
Frontend-heavy profiles (e.g., 80/20 frontend/backend) will not be a fit for this role