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Contacts, leads, opportunities and activity tracking from first conversation to closed deal.
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Featured project · ERP and CRM SaaSSujay Tech platform
One operating system for growing businesses.
Sujex connects sales, inventory, people, finance and projects in one multi-tenant platform, giving every business a clearer way to run its day-to-day operations.
10+
business modules
60+
API endpoints
100%
tenant isolated
Why Sujex exists
Business systems should connect the work, not multiply the handoffs.
Growing businesses often outgrow disconnected tools first: sales lives in one place, stock in another, people in spreadsheets and finance arrives after the decision has already been made.
Sujex brings those workflows into a modular ERP and CRM foundation. Each tenant gets isolated data, controlled access and only the business modules it actually needs.
The result is a clearer operating rhythm: fewer data silos, faster decisions and a platform that can expand with the business.
Platform modules
A connected foundation for every core business function.
Sujex is modular by design: activate the workflows a tenant needs today, then extend the system without rebuilding the operating model later.
Inventory
Products, warehouses, stock movements, valuation and low-stock alerts across locations.
Sales and purchasing
Orders, invoices, payments, vendors and purchase workflows with clear status transitions.
HR
Employee profiles, departments, leave requests, approvals and organisational structure.
Finance
Chart of accounts, journal entries, balance validation and multi-currency transactions.
Projects
Project budgets, nested tasks, priorities, assignees and completion tracking.
Built for trust and scale
Enterprise safeguards are part of the product foundation.
The architecture treats tenant boundaries, access, auditability and safe operations as core product behavior—not an afterthought.
Tenant isolation
Global EF Core query filters scope every authenticated query to the correct tenant.
JWT and refresh tokens
Short-lived access tokens and rotating refresh tokens protect each session.
Safe operations
Rate limiting, soft deletes, audit trails and structured production-safe errors.
How we built it
Clean layers keep a large platform understandable.
Clean Architecture keeps Sujex modular, maintainable and ready to scale.
API layer
REST controllers, middleware, auth filters, rate limiting and Swagger documentation.
Application layer
DTOs, service interfaces, validation logic, response models and pagination helpers.
Infrastructure layer
EF Core context, JWT and auth services, database seeding and file storage.
Domain layer
Entities, enums, base classes and domain events with no outward dependencies.
Technology stack
BackendASP.NET Core 8, C# 12, EF Core 8 and ASP.NET Identity
FrontendNext.js 15, React 19, TypeScript, Tailwind and shadcn/ui
DataPostgreSQL, Supabase, Npgsql and EF migrations
PlatformJWT auth, refresh tokens, rate limiting and audit trails
Brand system
Connected operations. Clear decisions.
The S+X+A mark represents the system, the connection between functions and the aligned action that turns business data into decisions.
Ink Navy#0B132B
Signal Teal#12B8A6
Royal Violet#6C63FF
Cloud#F4F7FB
Typography: Manrope ExtraBold for the brand and headings; Inter for product UI and body copy.
Explore the project
A practical ERP foundation for the next stage of growth.
Sujex brings together product strategy, platform architecture and a visual system designed to make complex business operations feel clear.