Expert Python Backend Development VendorBackend Development
We build production-grade Python backends with Django and FastAPI. Your MVP ships in 12 weeks with a fixed price.
IRPR is an expert Python backend development vendor. We build scalable backends using Django, FastAPI, PostgreSQL, Redis, and Celery. Our teams design RESTful APIs, GraphQL endpoints, and real-time data pipelines that handle millions of requests per day.
Every project ships with a fixed price determined in the Roadmap phase (week 2). Typical MVPs run 8-12 weeks with costs from $80K to $250K. We deliver source code, CI/CD pipelines, and AWS or GCP infrastructure. Our backends comply with HIPAA, PCI-DSS, and SOC 2 where required.
CTOs hire us when their in-house team lacks Python depth. Startup founders hire us to build their first production backend in 12 weeks. Product managers hire us to add API integrations or migrate legacy PHP to Python. Each engagement includes a senior engineer as your daily contact.
Types of software we ship.
RESTful API backend
REST API built with Django REST Framework or FastAPI. Includes auth, rate limiting, and OpenAPI docs. Connects to PostgreSQL or MongoDB.
GraphQL backend
GraphQL API using Strawberry or Graphene. Supports subscriptions, batching, and real-time data. Used by SaaS products with complex frontends.
Microservices backend
Distributed backend with multiple Python services communicating over gRPC or RabbitMQ. Each service is independently deployable and scaled.
Real-time data pipeline
Streaming pipeline using Apache Kafka or Redis Streams with Celery workers. Processes 10K+ events per second for analytics or notifications.
Ecommerce backend
Python backend with Stripe or Braintree integration, inventory management, and order processing. Handles PCI-DSS compliance for credit card data.
SaaS backend with billing
Multi-tenant backend with subscription billing via Stripe Billing or Recurly. Includes user roles, usage tracking, and metered pricing.
Backend for AI/ML applications
Python backend that serves ML models via FastAPI or Flask. Integrates with TensorFlow Serving or PyTorch. Includes model versioning and A/B testing.
Backend for mobile apps
Python backend with Firebase or custom push notifications, file uploads to S3, and offline sync. Supports iOS and Android clients with a single API.
We build for every business type.
SaaS companies
Fintech and payments
Healthcare and life sciences
Ecommerce and marketplaces
Logistics and operations
Why you need an expert Python backend development vendor
A Python backend is the backbone of your product. Getting it right saves months of rewrites.
Python is the second most popular language on GitHub. Django and FastAPI power backends for companies like Instagram, Pinterest, and Uber. IRPR has shipped over 200 Python backends across 50 countries. Our code runs in production for healthcare, fintech, and logistics clients who require 99.9% uptime.
When you hire IRPR as your expert Python backend development vendor, you get senior engineers who have built payment systems, real-time data pipelines, and multi-tenant SaaS platforms. We use Python 3.12, async views, and type hints to write maintainable code. Every project includes automated tests with pytest and deployment via GitHub Actions.
Generic Python shops vs. IRPR as your expert vendor
Not every Python agency delivers production-ready backends. Here is the difference.
Many generic dev shops assign junior developers who learn Python on your project. They use outdated frameworks like Flask without async support. They skip automated testing and deploy manually. Their code lacks type hints and docstrings, making future maintenance expensive.
IRPR assigns senior engineers with 5+ years of Python experience. We use Django 5.0 or FastAPI 0.110 with Pydantic v2. Every project includes 90%+ test coverage, CI/CD pipelines, and infrastructure as code with Terraform. We deliver documented APIs and a runbook for your team.
- Junior developers learning on your project
- No async support in Flask or old Django
- Manual deployments to a single server
- No automated tests or low coverage
- No type hints or Pydantic validation
- No documentation or runbook
- Senior engineers with 5+ years of Python
- Django 5.0 or FastAPI 0.110 with async views
- CI/CD via GitHub Actions to AWS ECS or GCP Cloud Run
- 90%+ test coverage with pytest and factory_boy
- Pydantic v2 validation and Python 3.12 type hints
- OpenAPI docs, Postman collection, and a runbook
Our process for building your Python backend
We follow a four-phase process that delivers a production-ready backend in 12 weeks.
Every engagement starts with a two-week Roadmap phase. During Roadmap, we define the data model, API endpoints, and infrastructure. You get a fixed price and a 12-week timeline. No scope creep. No hourly billing.
After Roadmap, we build in two-week sprints. Each sprint ends with a deployable increment running on a staging environment. You review and approve every sprint. Release includes load testing, security audit, and deployment to production.
What ships with every Python backend project
Every project includes these deliverables. No hidden extras.
When IRPR builds your Python backend, you own everything. Source code, infrastructure configuration, and documentation are yours. We set up monitoring, logging, and error tracking so your team can operate the system from day one.
You also get a two-week warranty period. We fix any bugs discovered in production for free. After that, we offer ongoing maintenance contracts starting at $5,000 per month.
- Source code in your GitHub or GitLab repository
- CI/CD pipeline with GitHub Actions or GitLab CI
- Django or FastAPI project with type hints and Pydantic validation
- PostgreSQL database with Alembic migrations
- RESTful or GraphQL API with OpenAPI documentation
- Automated test suite with pytest (90%+ coverage)
- Docker Compose setup for local development
- Terraform or Pulumi config for AWS or GCP infrastructure
- Sentry error tracking and DataDog or CloudWatch monitoring
- Runbook with deploy instructions, backup procedures, and incident response
What we ship in this practice.
Multi-tenant SaaS backend for a project management tool
Built a Django backend with PostgreSQL and Redis. Each tenant has isolated data with row-level security. Integrated Stripe Billing for subscription management. Reduced tenant onboarding time from 2 days to 15 minutes. Tech stack: Django 5.0, PostgreSQL, Redis, Stripe, AWS ECS.
Real-time data pipeline for a logistics platform
Designed a FastAPI backend with Apache Kafka and Celery workers. Processes 50,000 tracking events per second from GPS devices. Provides real-time ETA updates to customers via WebSocket. Reduced delivery delays by 22%. Tech stack: FastAPI, Kafka, Celery, PostgreSQL, Redis, GCP.
HIPAA-compliant backend for a telemedicine app
Built a Django backend with encrypted storage and audit logging. Integrated Twilio for video calls and Stripe for payments. Passed HIPAA security review with zero findings. Tech stack: Django, PostgreSQL, Twilio, Stripe, AWS with HIPAA-eligible services.
Payment processing backend for a fintech startup
Developed a FastAPI backend with PCI-DSS Level 1 compliance. Integrated Plaid for bank account verification and Stripe Connect for payouts. Handles $2M in monthly transactions with 99.99% uptime. Tech stack: FastAPI, PostgreSQL, Plaid, Stripe Connect, AWS.
Backend for a mobile fitness app
Created a Django REST API with Firebase Cloud Messaging for push notifications. Supports offline workout logging with sync when online. Serves 100,000 active users with sub-200ms response times. Tech stack: Django, PostgreSQL, Firebase, S3, AWS Lambda.
Ecommerce backend for a subscription box service
Built a FastAPI backend with ReCharge for subscription management. Integrates with ShipStation for shipping and QuickBooks for accounting. Manages 15,000 monthly subscriptions with zero failed payments. Tech stack: FastAPI, PostgreSQL, ReCharge, ShipStation, QuickBooks API, AWS.
Why teams hire us.
Fixed price, not hourly
Every project gets a fixed quote in the Roadmap phase (week 2). No hourly billing, no surprise invoices, no scope creep charges. You know the total cost before we write a line of code.
Senior engineers only
IRPR does not hire juniors. Every engineer has 5+ years of Python experience and has shipped at least 5 production backends. Your daily contact is a senior developer, not a project manager.
Production-ready from sprint one
Our first sprint deploys a working API to a staging environment. You see real code, real endpoints, and real tests every two weeks. No PowerPoint demos.
Full code ownership
You own all source code, infrastructure config, and documentation. No licensing fees. No vendor lock-in. You can take the code to any team after the project ends.
Compliance built in
We build backends that pass HIPAA, PCI-DSS, and SOC 2 audits. We use encryption at rest and in transit, audit logs, and role-based access control. Compliance is not an afterthought.
Two-week warranty
After release, we fix any bugs discovered in production for two weeks at no cost. We also provide a runbook so your team can handle issues independently.
Idea → Roadmap → Product → Release.
Every engagement runs through the same four-stage pipeline. Predictable by design.
Questions clients ask first.
Related services and industries.
Ready to build? Let's talk.
30-minute discovery call. No deck. We'll tell you honestly what it takes, how long, and how much.