LetBring Courier Platform

1. Business process analysis – current and target processes are studied, improvement opportunities are identified.

2. Writing the technical specification – functional and non-functional requirements of the project are documented.

3. Preparation of prototypes – main screen flows and functional samples are created for initial testing.

4. Preparation of design documents (Figma) – UI/UX design is visualized and user experience is planned.

5. Preparation of Data Flow Diagram – movement and relations of data within the system are described.

6. Software development – backend and frontend coding is carried out, modules are implemented.

7. Integration with internal 1C – synchronization with accounting and internal management systems.

8. UAT testing – user acceptance tests are conducted to confirm system compliance.

9. Other QA tests – functional, performance and security testing are performed.

10. Penetration testing – system is checked for security vulnerabilities.

11. Final bug fixing – all identified issues are resolved.

12. Delivery – fully working system is handed over to the client.

The solution is called LetBring Express; it is a web-based internal platform serving two profiles (Administrator, Operator). Admin modules: zone settings, price management, delivery types, reports, user and courier management, assignment of orders to couriers, delivery organization, order registry. Operator modules: homepage (with statistics) and new order form.

Tech stack: Node.js (Express) backend, React.js admin panel, PostgreSQL database, microservices (Docker/Kubernetes), CI/CD with ArgoCD, Redis/Elasticsearch (cache/search), notifications with Firebase/Twilio, Google Maps API for maps.