N+1 query performance
Naive Django ORM usage generates N+1 queries on related objects. We use select_related, prefetch_related and annotate systematically, with query-count assertions in the test suite.
Django Python DRF ORM
Django Development for Full-Stack Python Applications
Django's batteries-included architecture — ORM, admin, auth, migrations, forms — lets teams ship production-grade Python applications without reinventing infrastructure. We build Django monoliths, Django REST Framework APIs and hybrid Django + React setups for US and EU clients, with a focus on multi-tenancy, role-based auth and GDPR-compliant data handling.
Django's batteries-included architecture — ORM, admin, auth, migrations, forms — lets teams ship production-grade Python applications without reinventing infrastructure. We build Django monoliths, Django REST Framework APIs and hybrid Django + React setups for US and EU clients, with a focus on multi-tenancy, role-based auth and GDPR-compliant data handling.
Challenges
Industry challenges we solve
Multi-tenancy data isolation
Shared-schema multi-tenancy risks cross-tenant data leakage via ORM queries. We implement row-level security in PostgreSQL combined with Django middleware that scopes every queryset to the current tenant.
Admin panel security exposure
Django admin is powerful but often over-exposed. We restrict admin to internal VPN, add MFA, limit model permissions to the minimum required and audit all admin actions.
Celery task reliability
Fire-and-forget Celery tasks lose work on pod restart and mask errors silently. We configure task acks_late, retry with exponential backoff, dead-letter queues and Sentry integration for every task class.
Migration conflicts in team development
Concurrent Django migrations in feature branches cause migration tree conflicts that block deployment. We enforce linear migration history via pre-push hooks and a squash protocol for release branches.
GDPR right-to-erasure implementation
Deleting a user in Django leaves orphaned related objects and audit-log references. We implement cascaded anonymisation (not deletion) that satisfies erasure requests while preserving aggregated analytics.
Solutions
Solutions we build
REST API with Django REST Framework
Full DRF API with serializer validation, ViewSets, nested routers, throttling and token/JWT auth — OpenAPI schema generated via drf-spectacular.
Multi-tenant SaaS platform
Shared-schema multi-tenancy with PostgreSQL RLS and Django middleware — every queryset is tenant-scoped with zero risk of cross-tenant leakage.
Django admin customisation
Hardened admin panel with per-model permissions, custom list displays, inline editing, import/export and full audit log — ready for ops teams.
Async task pipeline
Celery workers with Redis broker — priority queues, retry policies, dead-letter queues, progress reporting and Sentry error capture.
CI/CD and test coverage
pytest-django test suite with factory_boy fixtures, coverage enforcement, flake8/ruff linting and database migration smoke tests in GitHub Actions.
GDPR data-subject workflows
Access, rectification and erasure request views backed by cascaded anonymisation — documented and tested against GDPR Article 17 requirements.
Stack
Technology stack
Django 5, Django REST Framework, Celery, PostgreSQL, Redis, Docker, Nginx, Gunicorn, pytest-django, Sentry, GitHub Actions.
Compliance
Compliance & regulations
GDPR-aligned · Django auth audit · HIPAA data isolation · SOC 2 logging
EU
- GDPR — Django's auth system logs last-login; we add per-object audit trails and data-subject request views.
- EU AI Act — data lineage middleware for AI-powered Django features.
- eIDAS — Django allauth with OAuth2/OIDC for EU identity providers.
- NIS2 — CVE scanning via pip-audit in CI, SECRET_KEY rotation protocol.
US
- HIPAA — PHI encrypted at rest (Django field encryption), row-level security, audit log middleware.
- SOC 2 — structured logging, secret scanning, Django permission system hardening.
- CCPA/CPRA — data-subject request views wired to DRF endpoints.
- Section 508 — Django admin UI accessibility audit and remediation.
Cases
Selected Django case studies
HealthTech · Nutrition
BasilDoc
Cross-platform diet and meal-planning app on Flutter — calorie engine, recipe library, weekly meal-plan, grocery ordering.
Manufacturing · E-commerce
REHAU
B2B e-commerce and product configurator for a global polymer manufacturer with multi-region pricing, stock and dealer workflows.
Retail · Fashion
SuperStep
Retail POS companion app for a multi-brand boutique chain — ElasticSearch cross-store inventory search, 1C-system integration.
Why YuSMP
Why product teams choose YuSMP for Django development
ORM and admin save months
Django's ORM, admin panel, auth system and migrations eliminate months of boilerplate — we focus engineering time on your business logic, not infrastructure.
Battle-tested security defaults
CSRF protection, clickjacking prevention, SQL injection resistance and XSS escaping are built in. We enforce SECURE_SSL_REDIRECT, HSTS and Content Security Policy on top.
Scales from MVP to enterprise
Django monoliths can be decomposed gradually — we design the initial data model and API surface to support future service extraction without a full rewrite.
FAQ
Django Development FAQ
When should I choose Django over FastAPI?
Django when you need an ORM, admin panel, auth system and full-stack templating included — typical for internal tools, content platforms, e-commerce backends and multi-tenant SaaS. FastAPI when you need native async, auto-generated OpenAPI docs and Pydantic validation — typical for microservices and ML inference APIs. Many systems use both: Django for the admin/CMS layer, FastAPI for the high-throughput API surface.
How does Django REST Framework differ from plain Django views?
DRF adds serialiser classes (input validation + output serialisation), ViewSets (CRUD endpoint generation), router-based URL configuration, throttling, pagination, filtering and built-in token/JWT authentication. It generates an OpenAPI schema via drf-spectacular. Plain Django views are sufficient for rendered templates; DRF is the standard for API-first Django services.
How do you handle Django database migrations in production?
We separate migration runs from application deployment. Migrations run in a pre-deploy job (Kubernetes init container or CI step) against the production database before the new app pods start. We test backward compatibility — the old app version must run against the new schema during rolling deployment. Destructive column changes use a multi-step migration sequence.
Can Django handle high concurrency?
Yes, with the right stack. Gunicorn with multiple workers handles synchronous concurrency. For truly async workloads we use Django 4.1+ async views with ASGI (Uvicorn/Daphne). Celery handles CPU-bound and I/O-bound background work. At high scale, Django services sit behind a load balancer with read replicas and Redis caching for frequent queries.
How do you implement GDPR right-to-erasure in Django?
We implement cascaded anonymisation rather than hard deletion. The user record is anonymised (email hashed, PII fields nulled), related content is anonymised or deleted per retention policy, and a separate audit record confirms the erasure. Aggregated analytics and audit logs (which may be legally required) are preserved without PII. The erasure endpoint is exposed via a DRF view authenticated by the user's own token.
Do you support Django Channels for WebSocket?
Yes. Django Channels extends Django with ASGI, enabling WebSocket connections, long-polling and server-sent events. We deploy Channels with a Redis channel layer for horizontal scaling. Use cases include real-time notifications, collaborative editing, live dashboards and chat.
How do you secure the Django admin panel?
We restrict the admin to an internal VPN or IP allowlist, enable MFA via django-otp, limit each user to the minimum required model permissions, add an audit log for every admin action via django-simple-history, and monitor login attempts with fail2ban. ADMIN_URL is changed from /admin/ to a non-guessable path.
Ship a production-grade Django application with senior Python engineers
Response within 1 business day. NDA on request.