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Case study 04Government · Energy

Ministry of Energy Platform

An enterprise SaaS ecosystem for fuel station maintenance and regulatory inspections.

On the stores

Role
Flutter engineering
Stack
  • Flutter
  • Dart
  • Clean Architecture
  • Dio
  • Retrofit
  • JWT
  • Firebase
  • MySQL
Work ordersAUTHORITYPROVIDERReportedAssignedInspectedClosedINSPECTEDASSIGNEDREPORTEDCLOSEDInspectionCHECKLIST
Illustration

01

The product

An enterprise B2G platform for the maintenance and regulatory inspection of fuel stations. It is multi-tenant: authorities and service providers work in the same system, each with its own data, users and workflows.

Role-based access control and secure JWT workflows decide what each user can see and do, from inspection management and work-order tracking to operational dashboards. The mobile app is published as Oxera.

02

Screens

Screenshots from the product.

  • Ministry of Energy Platform, screen 1
  • Ministry of Energy Platform, screen 2
  • Ministry of Energy Platform, screen 3

03

The challenge

  1. 01

    Multi-tenancy

    One codebase serves authorities and service providers. Data, configuration and permissions must stay cleanly separated per tenant.

  2. 02

    Role-based access

    Screens, actions and data are gated by role, so permissions have to be modelled explicitly instead of being scattered through the UI.

  3. 03

    Work-order lifecycle

    Maintenance and inspection work moves through clear states. The app has to make the current state and next action obvious.

04

My role

Flutter engineering

What I built

  • Multi-tenant architecture
  • Role-based access control (RBAC)
  • Secure JWT workflows
  • Inspection management
  • Work-order tracking
  • Operational dashboards
  • Responsive UI

05

Architecture

The layers of the system, from what people touch to how it ships. Every item comes from the project's stack.

  1. Presentation

    • Flutter
    • Dart
    • Responsive UI

  2. Architecture

    • Clean Architecture
    • Multi-tenant
    • RBAC

  3. Data

    • Dio
    • Retrofit
    • JWT

  4. Services

    • Firebase
    • MySQL

06

Engineering

  • Multi-tenancy

    Authorities and service providers share one system, with data, configuration and permissions separated per tenant.

  • Role-based access

    Screens, actions and data are gated by explicitly modelled roles.

  • Secure JWT workflows

    JWT-secured workflows over Dio and Retrofit.

  • Work-order lifecycle

    Work moves through clear states, so the current state and next action are obvious.

07

Product flow

  1. 01

    Sign in

    Secure JWT sign-in; the user's role decides what they see.

  2. 02

    Inspection

    Fuel station inspections are managed in the app.

  3. 03

    Work order

    Maintenance and inspection work is tracked as work orders.

  4. 04

    States

    Each work order moves through clear states with an obvious next action.

  5. 05

    Dashboards

    Operational dashboards for authorities and service providers.