Senior Backend App Development ConsultantsDevelopment Consultants
You need backend experts who ship. IRPR deploys senior engineers within 2 weeks, with fixed pricing and full code ownership.
IRPR provides senior backend app development consultants who build scalable APIs, microservices, and cloud infrastructure. We use Node.js, Go, Python, PostgreSQL, and AWS/GCP/Azure.
Projects ship in 8-12 weeks with fixed pricing from $80K-$250K. All code is owned by you. Compliance includes HIPAA, PCI-DSS, SOC 2, and FERPA when needed.
We work with CTOs hiring for complex system rewrites, SaaS founders scaling their backend, product managers needing API integrations, and VPs of engineering supplementing their team with senior talent.
Types of software we ship.
REST API Development
Build versioned REST APIs with OpenAPI specs and automated documentation. Example: Express.js with JWT auth and rate limiting.
GraphQL API Development
Create flexible GraphQL endpoints with resolvers and batch loading. Apollo Server federated across microservices.
Microservices Architecture
Decompose monoliths into bounded microservices with event-driven communication. Uses RabbitMQ or Kafka.
Serverless Backend
Lambda functions with API Gateway and DynamoDB for auto-scaling zero-admin backends. Runs on AWS SAM or Terraform.
Database Design & Optimization
Schema design, indexing strategies, and query tuning for PostgreSQL, MySQL, or MongoDB. Achieve sub-10ms read latency.
Third-Party Integrations
Connect your app to Stripe, Salesforce, HubSpot, or custom APIs. Uses webhooks, OAuth2, and retry logic with idempotency.
Backend Performance Optimization
Profile bottlenecks, add caching with Redis, and optimize N+1 queries. Reduce response times by 40% or more.
Cloud Migration & DevOps
Move existing backends to AWS/GCP/Azure with CI/CD pipelines, Docker containers, and Kubernetes orchestration.
We build for every business type.
SaaS Companies
Fintech Firms
Healthcare Organizations
Ecommerce Brands
Real Estate & Proptech
What our senior backend app development consultants deliver
Every project ships with the same guarantee: senior-level architecture, clean code, and zero technical debt.
IRPR assigns only senior engineers with 8+ years of experience. You never get juniors or offshore trainees. Every consultant has shipped production systems at scale.
We use typed languages (TypeScript, Go, Rust) and proven frameworks. Code is reviewed in weekly sprint cycles. You see working software every 2 weeks, not slide decks.
Senior backend app development consultants vs generic dev shops
Most agencies promise senior talent but deliver mid-level engineers. IRPR is different.
Generic shops often rotate engineers mid-project. They hide hourly billing and scope creep in vague contracts. Their juniors learn on your dime.
IRPR gives you a named senior consultant for the entire engagement. Fixed price from day one. No bait-and-switch. Code is fully owned and tested by you before final payment.
- Billing by the hour with no cap
- Assigns juniors or mid-level engineers
- Changes team members mid-project
- Delivers code with no tests
- Holds code hostage until final payment
- No compliance experience
- Fixed price agreed in Roadmap phase (week 2)
- Only senior engineers with 8+ years
- Named consultant for the full project
- Test coverage above 80% on every API
- Source code in your repo from day one
- Built-in HIPAA, PCI-DSS, SOC 2 compliance
Our process for senior backend app development consulting
We follow a four-phase methodology: Idea, Roadmap, Product, Release.
Phase one is a free discovery call where we align on technical requirements and constraints. By week two, you have a Roadmap with fixed price and timeline.
Building starts in week three. Senior engineers write production code against your acceptance criteria. Every two weeks, you review a deployed, working version.
What ships with every senior backend engagement
You get more than code. Every delivery includes production-grade infrastructure.
We treat your backend as a production system from sprint one. That means monitoring, alerting, and automated deployments are built in, not bolted on later.
Our engineers follow the same standards IRPR uses for Fortune 500 clients. Each project ships with a runbook and a 90-day AWS/Azure architecture warranty.
- Source code in your private repo on GitHub
- CI/CD pipeline with GitHub Actions or CircleCI
- Sentry error tracking with real-time alerts
- CloudFormation or Terraform infrastructure as code
- Database migration scripts with rollback support
- API documentation in Swagger/OpenAPI format
- Load testing report with k6 or Artillery results
- Postman collection for integration testing
- Deployment runbook with rollback steps
- 30-day post-launch support and bug fixes
What we ship in this practice.
Financial API Gateway
Built a PCI-compliant payment orchestration layer for a fintech startup. The gateway routes transactions to Stripe, PayPal, and ACH processors with automatic failover. Reduced payment failure rate by 35%. Stack: Go, PostgreSQL, Redis, AWS Lambda.
Telehealth Scheduling Engine
Developed a HIPAA-compliant backend for a telemedicine platform handling 50,000+ appointments monthly. Optimized provider scheduling with real-time slot availability and insurance eligibility checks. Stack: Node.js, MongoDB, Twilio, Azure.
Inventory Sync Microservice
Created an event-driven microservice that syncs inventory across Shopify, Amazon, and three warehouse WMS. Eliminated overselling by processing 2000+ inventory events per second. Stack: TypeScript, Kafka, PostgreSQL, Kubernetes.
MLS Data Aggregator
Built a real-time data pipeline that ingests MLS listings from 50+ sources and normalizes them into a unified API. Cut data latency from 24 hours to 5 minutes. Stack: Python, Airflow, Elasticsearch, AWS ECS.
Subscription Billing Engine
Designed a multi-tenant billing system for a B2B SaaS company with usage-based pricing. Supports metered billing, proration, and dunning workflows. Increased revenue by 12% through automated upgrade flows. Stack: Ruby on Rails, Stripe, Sidekiq, PostgreSQL.
Learning Management Backend
Delivered a FERPA-compliant backend for an edtech platform serving 200+ schools. Features include student progress tracking, content recommendations, and LTI 1.3 integration with Canvas. Stack: Django, PostgreSQL, Redis, Google Cloud.
Why teams hire us.
Senior engineers only on every project
We hire the top 1% of applicants. Every consultant has 8+ years building production backends. You never get a junior or mid-level engineer learning on your project.
Fixed price, not hourly
IRPR gives you a fixed quote in the Roadmap phase (week 2). No hourly billing, no surprise invoices, no scope creep charges. The price you agree to is the price you pay.
You own every line of code
Your source code lives in your GitHub or GitLab repo from day one. No proprietary frameworks. No locked-in IP. You can walk away at any time with a fully functional backend.
Compliance built into the architecture
Our senior backend app development consultants have shipped HIPAA, PCI-DSS, SOC 2, and FERPA systems. Compliance is designed in from the start, not retrofitted.
Two-week onboarding, not months
We can start within 1-2 weeks of signing. No lengthy discovery phases. You provide access to repos and APIs; our engineers self-onboard using a standard developer setup script.
Async-first, overlap guaranteed
Our team spans 12 time zones, but we guarantee at least 4 hours of real-time overlap with your time zone. You get daily status updates in Slack and a weekly demo video.
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.