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Full Stack Developer (Python-Heavy / Backend-Focused)
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Apptad Inc
Miami, FL (In Person)
Full-Time
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Job Description
Job Role:
Full Stack Developer (Python-Heavy / Backend-Focused)Job Location:
Miami, FL(Onsite)Job Type:
Fulltime Mandatory Skills:
Must Have Python+ React+ AI LLM/RAG-based semantic search and document intelligence workflows. Built Retrieval-Augmented Generation (RAG) pipelines leveraging vector embeddings and semantic search. LLM fundamentals, LangChain, LangGraph, MCP concepts / exposure Integration of Prototype Role Overview We are seeking a highly skilled Full Stack Developer with deep, hands-on Python backend engineering experience as the core of the role, complemented by working proficiency in ReactJS for frontend development. This is a backend-first full-stack position•candidates must demonstrate strong depth in Python services, database design, and authentication/authorization frameworks, along with a solid understanding of AI, Agentic AI systems, and the Model Context Protocol (MCP). Key Responsibilities 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 Must-Have Skills Python Backend (Primary): Strong, hands-on experience building backend services with FastAPI / Flask / Django•async patterns, dependency injection, middleware, API versioning, testing, and production deploymentDatabases:
Deep practical experience with PostgreSQL / MySQL / SQL Server•complex queries, joins, indexing, transactions, ORM usage (SQLAlchemy / Django ORM), and performance tuningAuthentication & Security:
Demonstrated depth in auth frameworks beyond JWT basics•OAuth 2.0, OIDC, SSO, RBAC, secure session handling, and API security best practicesRESTful APIs:
Proven experience designing, building, and integrating REST APIs and backend services at scale AI / AgenticAI / 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 roleABOUT US
Apptad offers strategic consulting, enterprise information management and digital transformation services. With globally connected offices in US and India along with a team of trained and certified IT resources, Apptad ensures quick and effective delivery to its customers.Apptad is relentlessly reinventing the outlook of how companies leverage data. With an effort to enable our customers the ability to solve biggest problems within their organization.
We perceive our clients problems and respond with custom solutions instead of handing over boilerplate responses.