Enterprise Python Backends & Resilient Data Engines
We build robust Django and FastAPI backends, transactional multi-tenant databases, and distributed Celery worker pipelines designed for high reliability.
What we build with Python
From high-throughput transactional backends to distributed multi-tenant workflows.
Multi-Tenant Business Platforms
Header-scoped and schema-scoped multi-tenant SaaS architectures with strict tenant data isolation, audit logging, and role-based permissions.
- Tenant query scoping
- Strict database transactional integrity
- Statutory audit trails
High-Throughput Asynchronous Pipelines
Distributed background task execution for PDF generation, bulk data ingestion, statutory filing reports, and external webhooks.
- Celery & Redis task queues
- Automatic dead-letter retries
- Backpressure management
REST & GraphQL API Backends
Strictly typed, OpenAPI-documented web services with automated validation, cursor pagination, and predictable error envelopes.
- drf-spectacular schema generation
- Clean 7-layer architecture
- Zero-leak error handling
Financial & Compliance Calculation Engines
Deterministic computational engines for Indian GST calculation, tax splitting (CGST/SGST/IGST), ledger aging, and stock valuation.
- Arbitrary-precision Decimal arithmetic
- Rule 46 compliance logic
- Immutable snapshotting
Our production stack
Battle-tested libraries, platforms, and operational standards we trust in production.
Frameworks & APIs
- Django 4.2 / 5.0
- Django REST Framework
- FastAPI
- Pydantic v2
Async & Messaging
- Celery
- Redis
- RabbitMQ
- Django Channels
Databases & Storage
- PostgreSQL 16+
- TimescaleDB
- AWS S3
- pgvector
Testing & Tooling
- pytest
- APITestCase
- ruff
- mypy
- Docker Compose
How we engage with engineering teams
Transparent delivery formats tailored to your stage, certainty requirements, and timeline.
Architecture & Discovery Sprint
2 Weeks2 weeks of deep domain modeling and risk elimination
- Data models & ERD specifications
- API interface contracts (OpenAPI)
- Working Proof-of-Concept service
- Fixed milestone delivery roadmap
New SaaS builds or teams needing architectural certainty before full commitment.
Fixed-Scope Product Delivery
6–12 WeeksEnd-to-end execution of turnkey platforms
- Production-ready Python/Django backend
- Comprehensive automated test coverage
- Continuous CI/CD pipeline
- Full deployment runbook & documentation
Companies needing a complete system shipped on a predictable timeline and budget.
Dedicated Engineering Retainer
QuarterlySenior backend engineers embedded in your team
- Dedicated senior engineer allocation
- Guaranteed SLA response times
- Continuous performance tuning & upgrades
- Direct Slack & code review collaboration
Growing products scaling traffic and requiring ongoing backend expertise.
Related engineering case studies
GST Reconciliation & Reporting Engine
Designed a high-throughput Django & Celery engine calculating precise GST splits and ledger postings across 12 branch entities.
Parallel Ledger Accounting Processor
Refactored legacy slow database transactions into streaming cursor-based exports with zero server memory spikes.
Ready to build your Python system?
Speak directly with our engineering architects to evaluate requirements, architecture, and timelines.