Product Engineering

TPMS Expertic

Built role-based modules for a TPE operations platform managing bank requests, tickets, inventory, attachments, Excel workflows, and notifications using Next.js, NestJS, Prisma, PostgreSQL, JWT, CASL, and SSE.

InternalNo public repoTPE operations management platform / 2025

Problem

Expertic needed one place to coordinate TPE requests, service tickets, stock movement, bank/client records, and dead stock with role-aware access.

Solution

Built a multi-role web platform with a Next.js dashboard, NestJS API, and Prisma/PostgreSQL data model. The backend enforces JWT auth, CASL permissions, validation, notifications, uploads, and role-scoped APIs.

Key Features

Role-based dashboards for bank employees and account managers

Ticket workflows for intervention, consumable, network-check, and deblocking requests

TPE catalog, terminal model, bank, client, consumable, and dead-stock modules

JWT authentication, CASL authorization, route guards, validation, and role-scoped APIs

SSE notifications, email templates, attachments, and Excel template import/export

Search/filter tables, reusable modals, settings pages, and unsaved-change protection

Role

Full-stack developer on TPMS, an internal Expertic tool I built with my colleague Sohaib Benabdallah during my role there. It is Expertic's company property. I worked on role-based dashboards, API integration, ticket workflows, inventory modules, and sanitized portfolio evidence.

Stack

Next.jsTypeScriptReactTailwind CSSshadcn/uiAxiosNestJSPrismaPostgreSQLJWTCASLSSEExcel import/export

Links

Case study

Role-scoped request flow

one API, two workspaces

Bank employees and account managers see different systems, but they are the same endpoints. The guard chain is the product decision — a JWT proves who you are, a role check proves what kind of user you are, and CASL policies decide row by row what you may read or change. Adding a fourth ticket type meant no new permission code.

TPMS Screenshots

11 views

TPMS account manager ticket dashboard with filters and Excel actions. — Account manager request dashboard with ticket filters, Excel import/export, and new request entry point.

TPMS new request modal showing intervention, consumable, network choice, and deblocking tabs. — Multi-type request modal for intervention, consumable, network choice, and deblocking workflows.

TPMS bank management dashboard with KPI cards and create bank action. — Bank management surface with search, status filtering, KPI cards, and bank creation.

TPMS create bank modal with bank information, sub-account, and TPE tabs. — Create bank modal split into bank information, sub-accounts, and terminal model assignment.

TPMS consumables inventory page with stock cards and low stock filter. — Consumables inventory with stock summaries, search, low-stock filtering, and create action.

TPMS TPE model management page grouped by manufacturer. — TPE catalog grouped by manufacturer, with model details and controlled delete actions.

TPMS account manager dead stock inventory page. — Account manager dead stock inventory with assignment status, filters, and stock table.

Account manager settings for profile updates and password changes.

TPMS bank employee ticket dashboard scoped to bank employee actions. — Bank employee dashboard with scoped request tracking and simplified navigation.

TPMS bank employee dead stock inventory summary. — Bank employee dead stock view with assigned inventory summaries and read-only table flow.

Bank employee settings showing profile controls and linked bank information.