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jjhangalo/README.md

Bartolomeu Hangalo - Software Developer and Product Builder

Building business systems, SaaS platforms, and operational software.

Software developer and product builder based in Luanda, building for markets beyond geographic boundaries.


What I Build

I design and build software products for organizations that need reliable systems, clear workflows, better data structures, and scalable operations.

Area Focus
Business systems Tools that structure operations, workflows, and internal processes
SaaS platforms Multi-tenant products, access control, dashboards, and product workflows
Backend platforms APIs, data models, integrations, and operational foundations
Digital operations Automation, reporting, administrative tooling, and decision support

Core Stack

TypeScript React Next.js Tailwind CSS Java Spring Boot Node.js Python PostgreSQL Supabase Docker Linux

Frontend: TypeScript, React, Next.js, Tailwind CSS
Backend: Java, Spring Boot, Node.js, Python
Databases: PostgreSQL, Supabase, Prisma
Infrastructure: Docker, GitHub Actions, Vercel, Linux
Architecture: APIs, RBAC, multi-tenant systems, operational workflows

GitHub Activity

Bartolomeu Hangalo GitHub activity and streak

Total contributions are based on the GitHub contribution graph and include private contribution counts when they are visible on the profile.

Engineering Focus

  • Software architecture that remains understandable as products grow
  • Backend systems with clear data models, boundaries, and access control
  • Multi-tenant platforms for real organizations and operational teams
  • Product engineering that connects technical decisions with business outcomes
  • Internal tools that replace fragmented manual processes with structured systems

Public Work

Some commercial product repositories are private by design. Public materials are used to present product direction, architecture, and technical reasoning without exposing proprietary implementation details.

This profile is intentionally not a catalog of every experiment. It is a public overview of the kind of software I build and the engineering direction behind it.

Background

I study and build software with a focus on practical systems rather than isolated code.

My work combines software engineering, product thinking, and business operations. I am especially interested in building software that helps organizations move from fragmented manual processes to structured, reliable digital systems.

Pinned Loading

  1. ramos-glamour ramos-glamour Public

    Modern E-commerce Platform (Store & Admin) powered by Next.js 16, TypeScript, Tailwind CSS, and Supabase.

    TypeScript 1

  2. persistec/persistech-360 persistec/persistech-360 Public

    TypeScript

  3. crisa crisa Public

    Conversational AI assistant built with Next.js and FastAPI, featuring a responsive chat interface and real-time AI thinking display.

    TypeScript

  4. space-jam space-jam Public

    Kotlin

  5. linguagem-c linguagem-c Public

    A progressive collection of C examples covering fundamentals, control flow, functions, arrays, strings, and pointers.

    C

  6. portfolio portfolio Public

    TypeScript