backend app development vendorapp development
You need a backend that handles millions of requests without breaking. We ship secure, scalable backend code in 8-12 weeks with a fixed price.
IRPR builds backend apps for companies that need reliable, secure, and scalable server-side code. We use Node.js, Python (Django/FastAPI), Go, and Ruby on Rails to build RESTful and GraphQL APIs, microservices, event-driven architectures, and data pipelines. Our backend engineers have shipped over 200 production systems across healthcare, fintech, ecommerce, and SaaS.
Every project starts with a 2-week Roadmap phase to define the API contracts, database schema, and infrastructure. After that we build and ship your backend MVP in 8-12 weeks. Pricing is fixed: $80K-$250K depending on complexity. All code is HIPAA, PCI-DSS, and SOC 2 compliant where required.
We work with CTOs at Series A startups who need a production-ready backend in 3 months, engineering VPs at mid-market companies modernizing their legacy stack, and founders who need a technical partner to build and own their backend infrastructure. No offshore shuffling, no dropped handoffs.
Types of software we ship.
REST API backend
A set of stateless HTTP endpoints for your mobile app or web frontend. We use Express.js or Django REST Framework with JWT auth.
GraphQL API backend
Flexible data querying backend for complex UIs. We use Apollo Server or Hasura with PostgreSQL for real-time subscriptions.
Microservices backend
Decoupled services communicating via gRPC or message queues. We use Docker, Kubernetes, and NATS for high scalability.
Event-driven backend
Backend that processes streams of events in real time. We use Apache Kafka or RabbitMQ with event sourcing patterns.
SaaS backend platform
Multi-tenant backend with billing, user management, and API rate limiting. We build with Stripe, Auth0, and a shared database per tenant.
Real-time backend
Backend for live chat, notifications, and collaborative editing. We use WebSockets or Socket.IO with Redis pub/sub.
Data pipeline backend
Backend that ingests, transforms, and stores large datasets. We build with Apache Airflow, Snowflake, and dbt.
Serverless backend
Backend running entirely on managed cloud functions. We use AWS Lambda, API Gateway, and DynamoDB with no servers to manage.
We build for every business type.
startups
enterprise
healthcare
fintech
ecommerce
What our backend app development service delivers
Every backend project includes a defined scope, clear timeline, and a production-ready deployment.
IRPR treats backend development as a engineering discipline, not a black box. We start with a 2-week Roadmap phase where we define every API endpoint, database table, and cloud resource before writing code. This phase costs $5K-$15K and produces a technical spec you can review and approve. No surprises.
After the Roadmap, we build in 2-week sprints with continuous deployment to a staging environment. You see running code every cycle. We use automated tests (Mocha, PyTest, Jest) to maintain 90%+ code coverage. When the project ships, you get full source code, CI/CD pipelines, and infrastructure as code (Terraform).
How IRPR differs from generic backend development firms
Most agencies give you a junior developer and a vague timeline. IRPR gives you senior engineers and a fixed price from day one.
We interviewed 150 backend developers and hired only the top 5%. Every IRPR engineer has 8+ years of production experience with Node.js, Python, Go, or Ruby. We do not have junior developers. You speak directly to the engineer building your system, not a project manager.
Our pricing model is transparent. After the Roadmap phase you get a fixed price for the entire build. No hourly billing, no time tracking, no invoices for 'research.' If the scope changes we write a change order. You decide. Over 200 projects, we have delivered 98% on time.
- hourly billing that encourages slow work
- junior developers with 1-2 years experience
- no written spec before coding begins
- handoffs to different timezones every week
- no automated testing or CI/CD
- code ownership clauses that limit you
- fixed price agreed in week 2
- senior engineers with 8+ years each
- full technical spec in Roadmap phase
- same team from start to launch
- 90%+ test coverage with CI/CD pipelines
- you own 100% of the code
The backend development process
From idea to production in four phases, no fluff.
We have structured our process so you see clear progress at every stage. Each phase ends with a concrete deliverable you can show your stakeholders.
Phase 1 (Roadmap) produces a technical spec. Phase 2 (Architecture) produces a runnable skeleton. Phase 3 (Build) delivers the full feature set. Phase 4 (Release) deploys to production with monitoring and alerting.
What ships when you hire IRPR as your backend app development vendor
Every project includes these deliverables by default. No add-on costs.
Our goal is to make you self-sufficient after we hand off the project. That means everything needed to run, deploy, and extend the system is included in the fixed price.
- Source code in your GitHub or GitLab repository
- CI/CD pipeline on GitHub Actions or GitLab CI
- Infrastructure as code using Terraform or Pulumi
- Dockerized local development environment
- Automated test suite with 90%+ coverage
- API documentation using Swagger or Postman
- Sentry error tracking and Datadog monitoring
- Deployment runbook and architecture diagrams
- Post-launch warranty and 1 month support
What we ship in this practice.
SaaS multi-tenant backend
We built a multi-tenant backend for a B2B SaaS platform. The system serves 500+ tenant companies with isolated databases per tenant. Tech stack: Node.js, PostgreSQL, Redis, Stripe, Auth0. Outcome: the client onboarded 50 new tenants per month without performance degradation.
Healthcare appointment scheduling API
We built a HIPAA-compliant backend for a telemedicine startup. The API handles 10,000 appointments per day with real-time provider availability. Tech stack: Python Django, PostgreSQL, Twilio, AWS HealthLake. Outcome: patient wait times dropped by 40%.
Fintech payment processing engine
We built a PCI-DSS level 1 compliant backend for a payments startup processing $5M monthly transaction volume. Tech stack: Go, PostgreSQL, Stripe Connect, Plaid. Outcome: the client passed their first security audit with zero findings.
Ecommerce real-time inventory system
We built a backend that syncs inventory across 15 warehouse locations in real time for a DTC brand. Tech stack: Node.js, PostgreSQL, Redis Pub/Sub, Shopify Admin API. Outcome: inventory discrepancies reduced from 5% to 0.2%.
Real estate MLS data pipeline
We built a backend that ingests and normalizes 3 million MLS listings per day from 20 different real estate boards. Tech stack: Python (FastAPI), Apache Airflow, Snowflake, dbt. Outcome: data freshness improved from 24 hours to 15 minutes.
EdTech gradebook backend
We built a FERPA-compliant backend for a K-12 assessment platform serving 500 schools. Tech stack: Ruby on Rails, PostgreSQL, Redis Sidekiq, AWS S3. Outcome: teachers saved 8 hours per week on manual grade entry.
Why teams hire us.
Fixed price, not hourly
Every project gets a fixed quote after the Roadmap phase (week 2). No hourly billing, no surprise invoices, no scope creep charges. If the scope changes we write a change order and you approve it. Over 200 projects, 98% delivered on time within budget.
Senior engineers only
We hired the top 5% of 150 applicants. Every engineer has 8+ years of production backend experience. No junior developers, no interns, no outsourced teams. You talk directly to the person writing your code.
HIPAA, PCI-DSS, SOC 2 compliance
We have built backend systems for HIPAA-covered entities, PCI-DSS level 1 merchants, and SOC 2 compliant SaaS platforms. Our infrastructure scripts include encryption at rest, network segmentation, and audit logging out of the box.
Async-first, but you can call anytime
We work async across 10+ timezones but every project has a Slack channel and a weekly video call. You get daily updates via pull requests and a staging environment you can check 24/7. Response time is under 2 hours during business hours.
Full code ownership
When the project ships, you own 100% of the source code, infrastructure scripts, and documentation. No intellectual property restrictions, no licensing fees, no hidden retainers. You can hire any engineer to maintain the code.
Post-launch warranty and support
Every project includes a 30-day warranty covering bugs, deployment issues, and performance tuning. After that we offer ongoing maintenance at a fixed monthly retainer starting at $5K. We do not disappear after launch.
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.
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