Expert Python Backend Development ConsultantsBackend Consultants
We build production Python backends that scale to millions of users. Fixed price, 8-12 weeks, no surprises.
IRPR builds production-ready Python backends using Django, FastAPI, PostgreSQL, Redis, and AWS. Our senior engineers write clean asynchronous code, design RESTful APIs, and implement horizontal scaling from day one.
Every project ships in 8-12 weeks with a fixed price between $80K and $250K. We handle compliance out of the box - HIPAA, PCI-DSS, SOC 2, and FERPA are standard. You get a dedicated tech lead who writes code and reviews every pull request.
CTOs scaling their engineering teams hire us to build core backends while they focus on product. Founders use us to ship a working SaaS backend in under 3 months. Enterprise teams bring us in to modernize legacy Python monoliths into microservices.
Types of software we ship.
REST API Development
Design resource-oriented APIs with versioning, rate limiting, and OpenAPI docs using Django REST Framework or FastAPI.
Microservices Architecture
Decompose monoliths into containerized services communicating via gRPC or message queues like RabbitMQ.
Data Pipelines & ETL
Build batch and streaming pipelines with Airflow, Kafka, and Spark to move data between Postgres, Redshift, and S3.
Real-Time Web Socket Servers
Power live notifications and collaborative features using Django Channels, Redis Pub/Sub, and WebSockets.
AI/ML Model Serving
Wrap PyTorch or TensorFlow models in FastAPI endpoints with autoscaling on AWS SageMaker or Kubernetes.
Payment Processing Backend
Integrate Stripe, Braintree, or Adyen with idempotency, webhook handling, and PCI-compliant token storage.
Authentication & Authorization
Implement OAuth2, SAML, SSO, and RBAC using Auth0, Okta, or custom JWT with Django Allauth.
Background Task Queues
Run deferred work with Celery and Redis, including retry logic, task chaining, and real-time progress tracking.
We build for every business type.
Healthcare
Fintech
Ecommerce
SaaS
Logistics
Why companies hire expert Python backend development consultants
Building a Python backend that scales requires deep knowledge of async patterns, database indexing, caching, and deployment automation.
IRPR's senior engineers have shipped Python backends for healthcare platforms handling 50,000 concurrent users and fintech systems processing $2M in transactions daily. We use Django, FastAPI, Postgres, Redis, and Docker every day. Your project ships with CI/CD, monitoring (Datadog, Sentry), and auto-scaling built in.
We have delivered 200+ products across 50+ countries. Every project includes code reviews, load testing, and a runbook for your team. The average delivery time is 12 weeks. 98% of projects finish on schedule.
Generic dev shops vs expert Python backend consultants
Most agencies bill hourly and hand off junior developers. IRPR works differently.
Generic shops assign mid-level developers who need onboarding and miss production-readiness. They use Rails or Node because that is what they know, not what your system needs. They charge extra for CI/CD, monitoring, and documentation.
IRPR gives you a senior Python engineer as your lead. They write code, review all PRs, and set up infrastructure before day 10. We include CI/CD, Sentry error tracking, Datadog monitoring, and a full API spec in the price.
- Junior developers with minimal Python experience
- Hourly billing with no ceiling
- No built-in monitoring or CI/CD
- Unclear ownership of source code
- Scope creep charges for every change
- No compliance experience (HIPAA, PCI)
- Senior Python engineers, 10+ years each
- Fixed price set during Roadmap phase
- CI/CD, Datadog, Sentry included
- Full source code ownership - you own everything
- Change requests handled through scope management, not surprise invoices
- HIPAA, PCI-DSS, SOC 2, FERPA compliance built in
How we deliver expert Python backend development
Every project follows a four-phase process that guarantees a working backend in weeks, not years.
We start with a two-week discovery phase where we map your data model, API contracts, and infrastructure requirements. You get a fixed price and timeline at the end of week 2.
From week 3, we work in 2-week sprints. You see working endpoints every cycle. Deployment to staging happens by week 5. Production release with load testing is complete by week 12.
What ships with your Python backend
We do not hand you code and walk away. Every delivery includes production infrastructure from day one.
Your backend includes automated tests, a continuous deployment pipeline, and monitoring alerts before we write the first feature. This means you never have to ask 'is it production ready?'
We use Docker for local development consistency, GitHub Actions for CI, and Terraform for infrastructure as code. Every environment (dev, staging, prod) is reproducible with one command.
- Source code in your private GitHub repo
- CI/CD pipeline with GitHub Actions (auto-tests, lint, deploy)
- PostgreSQL schema with Alembic migrations
- REST API with Swagger/OpenAPI documentation
- Redis caching layer for frequently accessed data
- Sentry error tracking with alerting
- Datadog APM and server monitoring dashboard
- Docker Compose setup for local development
- Load test report using Locust with baseline metrics
- Deployment runbook for AWS or other cloud provider
What we ship in this practice.
Real-time analytics API for a healthcare SaaS
Built a FastAPI backend that aggregates patient visit data from 5 EHRs in real-time and exposes drill-down analytics. Reduced report generation time from 3 hours to 6 seconds. Tech stack: FastAPI, PostgreSQL, Redis, Apache Kafka, AWS Lambda.
Payment orchestration backend for a fintech startup
Developed a Stripe-connected payment engine with idempotency, webhook reliability, and a retry queue for payment failures. Handled $1.2M in transaction volume in first month. Tech stack: Django, Stripe API, Celery, PostgreSQL, Docker.
Multi-tenant order management API for an ecommerce brand
Replaced a monolithic PHP backend with a FastAPI microservice handling catalog, cart, and order lifecycle for 50,000 SKUs. Cut API response times by 65%. Tech stack: FastAPI, PostgreSQL, Redis, Elasticsearch, AWS ECS.
Usage metering and billing engine for a SaaS platform
Created a real-time usage aggregation service that triggers Stripe invoices based on per-customer API calls and storage. Automated a manual billing process saving 40 hours/month. Tech stack: Django, Stripe Billing, Redis, Celery Beat, PostgreSQL.
Real-time logistics tracking backend for a freight company
Built a WebSocket-driven system that ingests GPS data from 2,000 trucks every 5 seconds and pushes location updates to client dashboards. Reduced lag from 60 seconds to under 2. Tech stack: Django Channels, Redis, PostgreSQL, Docker, AWS EC2.
HIPAA-compliant patient messaging backend for a telehealth platform
Developed end-to-end encrypted messaging with attachment handling, audit logging, and automatic retention policies. Passed HIPAA audit on first try. Tech stack: FastAPI, PostgreSQL, Amazon S3, AWS KMS, Celery.
Why teams hire us.
Fixed price, not hourly billing
Every project gets a fixed quote during the Roadmap phase (week 2). No hourly billing, no surprise invoices, no scope creep charges. The price covers all features in the plan plus CI/CD, monitoring, and documentation.
Senior engineers only - no juniors
All IRPR engineers have 10+ years of Python experience. They have shipped production backends using Django, FastAPI, and SQLAlchemy at scale. You never get a junior developer 'learning on your project'.
8-12 week delivery guaranteed
We ship a working Python backend in 8-12 weeks. The timeline is set during Roadmap and tracked in Jira. 98% of projects finish on schedule. If we are late, you pay zero for the delay.
Built-in compliance (HIPAA, PCI, SOC2, FERPA)
We configure encryption at rest, audit logging, access controls, and data segregation from day one. Our backends have passed external audits for 12+ healthcare and 6 fintech clients. Compliance is not an add-on - it ships with the code.
Full source code ownership
You own every line of code we write. The repo lives in your GitHub organization. There are no licenses, no royalties, no vendor lock-in. You can take the code to any team tomorrow.
Post-launch support included
We provide 4 weeks of post-launch support at no extra cost. Your team gets access to our engineers via Slack for bug fixes, performance tweaks, and deployment assistance. After that, we offer retainer options starting at $6K/month.
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.