Case file 01 · Platform

SEGISPRO

One operational platform connecting HSE talent, clients, planning, documents and service delivery.

SvelteKit
TypeScript
NestJS
PostgreSQL
Azure Blob
WebSockets

The challenge

HSE operations crossed recruiting, professional records, client requirements, work orders, planning and billing. When each step lives in a different document or conversation, the team loses traceability and repeats verification work.

SEGISPRO public product presentation and operational workflow — Public presentation rendered from the local product; it explains the workflow without exposing client data.

The approach

I shaped the product as role-aware workflows backed by a NestJS API and a SvelteKit application. PostgreSQL holds the operational model, object storage protects files, and background jobs, notifications and real-time events move long-running work without blocking the interface.

Key decisions

Separate the SvelteKit client from the NestJS API so each side can evolve around a clear contract.
Keep sensitive documents in object storage and expose them through short-lived signed access.
Automate repetitive synchronization and document workflows without removing human approval points.

Technical architecture

Full-stack architecture designed and built end to end by me.

01 Product experience SvelteKit · TypeScript
Role-aware workflows for operations, professionals and clients.
02 Application API NestJS
Business rules, permissions and process orchestration.
03 Operational data PostgreSQL
Shared model for talent, clients, services and billing.
04 Files and events Azure Blob · WebSockets
Protected evidence, notifications and real-time updates.

Modules

What the product is made of, as its own screens divide it.

01 HSE talent
Professional profiles, documents, availability and payments.
02 Clients & contracts
Accounts, sites and the contracts that frame each service.
03 Planning & work orders
Calendar planning turned into orders with evidence attached.
04 Billing
Service billing and professional payouts from the same records.
05 Reports & statistics
Activity, dashboards and exports for operations and management.
06 Notifications
In-app notices and WhatsApp templates for every process step.
07 Backups & manual
Scheduled backups and the built-in user manual.

Before → after

Before
Professional records scattered across files.

After
One traceable professional profile.
Before
Planning disconnected from execution.

After
Work orders connected to evidence and follow-up.
Before
Repeated manual document verification.

After
Controlled workflows with explicit approvals.

Technologies

SvelteKit
TypeScript
NestJS
PostgreSQL
Azure Blob
WebSockets

The wider toolkit

Drizzle ORM
BullMQ
Passport
JSON Web Tokens
Swagger
Chart.js
D3
FullCalendar
ExcelJS
Azure AI
Microsoft Graph
Google Calendar
Vitest
Lucide

Brand marks from Simple Icons; concepts without one are drawn in-house.

Project log

Nov 2025 → Oct 2026 · 12 active months

886 commits

2 repositories

12 active months

Nov 2025 Busiest month: May 2026 · 158 commits Oct 2026

app app · 669 commits Nov 2025 → Oct 2026
api API · 217 commits May 2026 → Oct 2026

In the tree

49 routes
60 API controllers
19 migrations
76 test files
1993 tracked files

Read from the local Git history on Oct 6, 2026. Aggregates only.

The outcome

The resulting platform connects the operating chain in one product: from a professional profile to planning, evidence and follow-up. The local Git snapshot covers 740 commits across two codebases and 44 product routes, reflecting a system grown through sustained operational use.

Private codebase — this file shares the thinking, not the source.

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