Full Stack Developer (Python-Heavy / Backend-Focused)

Persistent Systems; Miami (FL); Hybrid; USD 120,000 - 160,000; Full time

Benefits offered by this job

Group term life insurance

Mediclaim hospitalization

Personal accident insurance

Long service awards

Flexible work hours

Job summary

Persistent is seeking a highly skilled Full Stack Developer for a hybrid Miami, FL position. The role centers on Python backend engineering with deep expertise in React frontend development, AI capabilities, and secure, scalable architectures.

You will contribute to backend-first design, API contracts, and data-modeling while collaborating across cross-functional teams. The ideal candidate brings strong Python frameworks experience, relational database design, and proficiency in integrating

Qualifications

• Strong Python backend experience (FastAPI/Flask/Django).
• Relational DB design with PostgreSQL/MySQL/SQL Server; ORM experience.
• OAuth2/OIDC/SSO and secure auth knowledge.
• Hands-on ReactJS with hooks/state management.

Responsibilities

• Design and develop scalable Python backend services using FastAPI/Flask/Django.
• Architect, build, and integrate RESTful APIs and microservices with focus on performance and security.
• Design relational database schemas and optimize queries in PostgreSQL/MySQL/SQL Server.
• Implement robust authentication/authorization frameworks beyond JWT (OAuth/OIDC/SSO).
• Develop responsive frontend features in ReactJS to support backend services.
• Incorporate AI/Agentic AI features and MCP concepts into backend solutions.
• Collaborate with cross-functional teams on API contracts and data flows.

Skills

Python

ReactJS

GenAI

Tools

FastAPI

Flask

Django

PostgreSQL

MySQL

SQL Server

SQLAlchemy

Job description

We are an AI-led, platform-driven Digital Engineering and Enterprise Modernization partner, combining deep technical expertise and industry experience to help our clients anticipate what’s next. Our offerings and proven solutions create a unique competitive advantage for our clients by giving them the power to see beyond and rise above. We work with many industry-leading organizations across the world, including 20 Fortune 50 companies and 4 of the 5 top banks in both the US and India, and numerous innovators across the healthcare ecosystem.

Our disruptor’s mindset, commitment to client success, and agility to thrive in the dynamic environment have enabled us to sustain our growth momentum. Persistent has been recognized across top industry platforms for innovation, leadership, and inclusion. We reported $1,654.4M FY26 revenue with 17.4% Y-o-Y growth. We have delivered 24 sequential quarters of growth with $436.0M in Q4 FY26 revenue, up 3.2% Q-o-Q and 16.2% Y-o-Y growth. Our 27,500+ global team members, located in 18 countries, have been instrumental in helping the market leaders transform their industries. We have been recognized as the Fastest Growing IT Services Brand Globally in the 2026 Brand Finance IT Services 25 Report. We named a Leader in the Everest Group Private Equity (PE) Services PEAK Matrix® Assessment 2026 and Software Product Engineering PEAK Matrix® Assessment 2026.

About Position:

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).

• Role: Full Stack Developer (Python-Heavy / Backend-Focused)
• Location: Miami, FL
• Experience: 12+
• Job Type: Full-Time Employment
• Mandatory Mention 3 skills: Python, React and GenAI

What You\'ll Do:

• 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

Expertise You\'ll Bring:

• 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)
• 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
• Competitive salary and benefits package
• Culture focused on talent development with quarterly growth opportunities and company-sponsored higher education and certifications
• Opportunity to work with cutting-edge technologies
• Employee engagement initiatives such as project parties, flexible work hours, and Long Service awards
• Insurance coverage: group term life, personal accident, and Mediclaim hospitalization for self, spouse, two children, and parents

Values-Driven, People-Centric & Inclusive Work Environment:

Persistent is dedicated to fostering diversity and inclusion in the workplace. We invite applications from all qualified individuals, including those with disabilities, and regardless of gender or gender preference. We welcome diverse candidates from all backgrounds.

• We support hybrid work and flexible hours to fit diverse lifestyles.
• Our office is accessibility-friendly, with ergonomic setups and assistive technologies to support employees with physical disabilities.
• If you are a person with disabilities and have specific requirements, please inform us during the application process or at any time during your employment

Persistent is an Equal Opportunity Employer and prohibits discrimination and harassment of any kind.