Senior Python Backend Development ConsultantsDevelopment Consultants
We build production-grade Python backends that scale. You get a senior team, fixed pricing, and a working product in 8-12 weeks.
IRPR is a team of senior Python backend development consultants. We build scalable APIs with FastAPI, Django, and Flask, backed by PostgreSQL or MongoDB. Every backend is designed for high concurrency and low latency from day one.
We ship a working Python backend in 8 to 12 weeks. Our fixed price ranges from $80K to $250K depending on scope. All code passes PCI-DSS or HIPAA compliance checks if required. You get full source code ownership.
CTOs hire us to replace a stalled in-house team. Startup founders hire us to build their SaaS MVP without hiring. Enterprise VPs hire us to modernize legacy Python monoliths into microservices. We work async-first with daily overlap on US time zones.
Types of software we ship.
REST API Development
Build versioned REST APIs with FastAPI, automatic OpenAPI docs, and JWT auth. Handles 10K+ requests per second.
Microservices Architecture
Decompose monoliths into independent Python services with message queues (RabbitMQ, Kafka) and Docker orchestration.
Data Pipeline Engineering
Design ETL pipelines using Airflow, Pandas, and PySpark. Process terabytes of data daily with error handling and monitoring.
GraphQL API Development
Implement GraphQL endpoints with Strawberry or Graphene. Reduce over-fetching and speed up frontend data loading by 40%.
Backend for Mobile Apps
Build Python backends for iOS and Android apps. Includes push notifications via Firebase, file uploads to S3, and user auth.
Real-Time Backend Systems
Create real-time features with WebSockets, Socket.IO, or Redis Pub/Sub. Used for live chat, dashboards, and collaborative tools.
Third-Party API Integration
Integrate Stripe, Twilio, Salesforce, or HubSpot APIs into your Python backend. Handle rate limiting, retries, and webhooks.
Backend Audit and Optimization
Audit existing Python codebases for bottlenecks, security holes, and tech debt. Deliver a report with fix priorities and timeline.
We build for every business type.
SaaS companies
Fintech firms
Healthcare organizations
Ecommerce brands
Logistics and manufacturing
Why senior Python backend development consultants matter
A junior developer can write Python. A senior consultant ships a system that stays online, scales, and passes audits.
We have shipped over 200 Python backends for clients in 50+ countries. Each project uses a tech stack chosen for the problem: FastAPI for high-throughput APIs, Celery for async tasks, Redis for caching, and PostgreSQL for transactional data. Every deployment includes automated testing with pytest and CI/CD via GitHub Actions.
Our senior Python backend development consultants have 10+ years of experience each. They have built systems handling 1 million requests per day and databases with 100 million rows. They write code that another engineer can read and extend.
The difference between generic freelancers and IRPR
Hiring a single freelancer is cheap until the project stalls. Our senior Python backend development consultants work as a team with a fixed deadline.
Most freelance Python developers work alone. When they get sick or take another client, your project stops. They often skip tests, documentation, and deployment scripts. You inherit tech debt that costs more to fix than the original build.
IRPR assigns a team of 3 to 5 senior Python backend development consultants. We write tests first, document every API endpoint, and set up staging environments. You get a working system with a warranty, not a GitHub repo full of surprises.
- Hourly billing that rewards slow work
- No dedicated project manager
- Code has no tests or CI/CD
- No compliance knowledge (HIPAA, PCI)
- Single point of failure (one developer)
- No post-launch support plan
- Fixed price agreed in week 2
- Dedicated PM with daily standups
- 100% test coverage on critical paths
- HIPAA, PCI-DSS, SOC 2 ready
- Team of 3-5 senior consultants
- 3 months of post-launch support included
How our senior Python backend development consultants deliver
We follow a four-phase process that turns your idea into production code in 8-12 weeks.
Phase 1 is the Idea call. We learn your business goal, not just your feature list. We identify the riskiest assumptions and design a minimal viable backend that tests them. This takes one week.
Phase 2 is the Roadmap. We write a detailed spec with API endpoints, database schema, and deployment architecture. You get a fixed price and timeline. Phase 3 is Product: we build in two-week sprints with demos. Phase 4 is Release: we deploy to AWS or GCP and hand over the keys.
What ships with every Python backend project
Every project includes these deliverables. No hidden line items.
When we finish a project, you own everything. The source code, the CI/CD pipeline, the database migrations, and the monitoring dashboards. We do not use drag-and-drop builders or low-code platforms. Every line is Python written by a senior developer.
You also get a runbook that explains how to deploy, scale, and debug the system. Your team can take over without calling us. But if you need us, we offer 3 months of post-launch support at no extra cost.
- Source code in your private GitHub repo
- CI/CD pipeline with GitHub Actions and Docker
- Automated tests (pytest, coverage > 90%)
- API documentation (OpenAPI/Swagger)
- Database schema with Alembic migrations
- Staging environment on AWS or GCP
- Production deployment with Terraform
- Monitoring with Sentry and Datadog
- Runbook with deployment and scaling steps
- 3 months of post-launch support
What we ship in this practice.
SaaS billing backend
Built a multi-tenant billing system with Stripe integration. Handles 50,000 subscriptions and prorated upgrades. Reduced churn by 15% with automated dunning emails. Tech stack: FastAPI, Celery, PostgreSQL, Stripe API.
HIPAA-compliant patient portal
Developed a backend for a telehealth startup. Handles patient intake, video scheduling, and EHR integration. Passed HIPAA audit in week 10. Tech stack: Django, PostgreSQL, Twilio Video, AWS HealthLake.
Real-time fraud detection engine
Built a streaming fraud detection system for a fintech company. Processes 10,000 transactions per second with sub-100ms latency. Reduced false positives by 40%. Tech stack: FastAPI, Kafka, Redis, scikit-learn.
Ecommerce order processing pipeline
Replaced a legacy PHP backend with a Python microservices architecture. Handles 1 million orders per month with 99.99% uptime. Cut order processing time from 30 seconds to 2 seconds. Tech stack: Flask, RabbitMQ, MongoDB, AWS SQS.
Real estate MLS integration API
Built a backend that ingests MLS data from 50+ sources and normalizes it into a single API. Reduced data sync time from 4 hours to 15 minutes. Tech stack: Django, PostgreSQL, Airflow, Redis.
EdTech assessment platform
Developed a backend for a K-12 assessment platform. Supports 100,000 concurrent students with real-time grading. Passed FERPA compliance review. Tech stack: FastAPI, PostgreSQL, WebSockets, AWS ECS.
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 cost before we write a line of code.
Senior team, no juniors
Our Python backend consultants have 10+ years of experience. No juniors, no offshore interns. Every person on your project has shipped production systems at scale.
Compliance built in
We have built backends for HIPAA, PCI-DSS, SOC 2, and FERPA. We write code that passes audits from day one. No retrofitting compliance after launch.
Full ownership
You own the source code, the Docker images, and the infrastructure scripts. No license fees, no vendor lock-in, no recurring royalties. The code is yours.
8-12 week timeline
We ship a working backend in 8 to 12 weeks. Our process is designed for speed without cutting corners. You see a demo after the first two-week sprint.
Post-launch support included
Every project includes 3 months of post-launch support. We fix bugs, add small features, and help your team take over. No separate support contract needed.
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.