SaaS Platform Backend Improvement

Java, Website Design, Django, Software Architecture, Node.js, AngularJS, Backend Development, Java Spring, Security, API Development · Secure Multi-Tenant SaaS Backend Redesign

Category: Backend Development / Software Architecture Budget: £1,350 GBP Hourly rate range (if hourly bids considered): $30/hr – $250/hr Project deadline: Tuesday, 6 October 2026

Description: We need an experienced backend engineer to redesign and harden the backend architecture of an existing multi-tenant SaaS platform. The current system needs improved data isolation between tenants, encrypted API endpoints, and a cleaner service layer separating authentication, billing, and core business logic. This is purely backend/infrastructure work — no front-end changes required.

Key requirements:

Strong experience with backend frameworks (Node.js, Django, or Java Spring) Familiarity with multi-tenant data architecture and encryption best practices Experience designing secure, versioned REST or GraphQL APIs Comfortable working against a fixed one-week delivery window

Deliverables:

Revised backend architecture diagram Refactored authentication and API layer with encryption in transit/at rest Documentation of security decisions and migration notes

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