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Leadership · 2025

HR platform

At ASSUMTEK, from January 2025 to January 2026, I built the internal time-tracking and payroll system for PJ contractors and led engineering: architecture, demand, and 1:1s.

Role
Full-Stack and Tech Lead
Context
ASSUMTEK
Year
2025
Stack
Next.js · Node.js · PostgreSQL · n8n

The problem

Contractor hours, caps, approvals, and dynamic compensation depended on a manual process. Payroll close was slow and easy to get wrong.

What I did

A product from scratch with Node, PostgreSQL, Next.js, Vercel, and Railway, including the business rules and approval flows. Around it, integration backends with Node, n8n, and Make (Meta Ads, CRMs) and Node/Python pipelines for Power BI.

What holds the case up

  1. 01

    Payroll

    About 70% less HR operational time to close payroll.

  2. 02

    Tech lead

    Demand management, solution architecture, and 1:1s.

  3. 03

    Data

    Pipelines for Power BI across Product, Marketing, IT, HR, and client-facing B2B projects.

Résumé

Downloadthe CV.

The English PDF has the trajectory, the stack, and the education. The Portuguese version of this page serves the file in Portuguese.

Download CV