ALBINO ANTONIO M. CHANGO
Profile
I build production software. Not tutorials. Not demos. Real products with real users.
meurecibo.online is a SaaS invoicing platform I designed and built entirely from scratch for the Mozambican market — multi-tenant architecture, enterprise role-based access control, Stripe billing, PDF generation, and a full CI/CD pipeline. Live in production.
On the backend I work with Java and Spring Boot — building structured REST APIs with layered architecture, JWT authentication, and JPA/Hibernate. On the frontend, React and TypeScript are my daily tools.
Open to remote contracts with European product teams who need someone that ships end-to-end and operates independently.
Work Experience
TECHRAYS LABS
Software Development Intern
React · JavaScript · TypeScript · Node.js · Express · MongoDB · PostgreSQL · REST APIs · Git
- •Developed modular frontend features using React and TypeScript with reusable component architecture.
- •Built and maintained RESTful APIs with Node.js and Express, implementing authentication middleware and data validation.
- •Worked with MongoDB and PostgreSQL for data modeling across multi-model requirements.
- •Integrated UI components with live backend APIs, handling async data flows and error states.
- •Containerized environments with Docker and managed deployments via Vercel.
- •Participated in code reviews, sprint planning, and daily standups in an agile workflow.
Projects
meurecibo.online
Dec 2025
Built a production SaaS invoicing platform for the Mozambican market — end to end, solo.
→ Architected a multi-tenant platform with Free and Paid tiers, enterprise account roles (admin/member), and role-based access control → Built a complete invoicing engine — creation, status tracking (draft/sent/paid/overdue), recurring invoices, automated PDF generation, and direct email delivery to clients → Integrated Stripe for subscription billing, plan management, webhook handling, and payment failure recovery flows → Built a full analytics dashboard with revenue charts, client management module, and product/service catalog → Implemented JWT authentication, email verification, guided onboarding flow, and platform-wide notification system → Set up full CI/CD pipeline — Vercel (frontend) + Railway (backend) — with clean TypeScript and ESLint production builds → Managed PostgreSQL schema and migrations with Prisma ORM across production
Stack: React · TypeScript · Node.js · Express · PostgreSQL · Prisma · Stripe · Tailwind CSS · Docker · Vercel · Railway
Project Image
RastreiaMZ
RastreiaMZ
May 2026
Full-stack delivery management system built for distributors in Mozambique — from scratch.
→ Built a complete REST API with Java 21 and Spring Boot 3.5, following clean layered architecture (Controller → Service → Repository) → Implemented Spring Security with JWT authentication and role-based access control (ADMIN and OPERADOR roles) using Spring Data JPA + Hibernate → Designed order lifecycle management: PENDENTE → EM_TRÂNSITO → ENTREGUE with driver assignment and failure tracking → Managed database schema and versioning with Flyway migrations across dev (H2) and production (PostgreSQL) environments → Built the full frontend in React + TypeScript with Vite, Tailwind CSS, and Axios — connected to all backend endpoints → Full CRUD for clients, drivers, products, and orders with pagination and filtering
Stack: Java 21 · Spring Boot 3.5 · Spring Security · JWT · JPA/Hibernate · Flyway · PostgreSQL · React · TypeScript · Tailwind CSS · Vite · Maven
Technical Skills
Core Technologies
Frameworks & Libraries
Databases
Tools & Platforms
Practices & Concepts
Education
GUJARAT TECHNOLOGICAL UNIVERSITY
Bachelor of Engineering
Major in Computer Engineering
Gujarat, India
Expected 2027
Certificates
Learn How To Build Amazing Websites with HTML, CSS, and JavaScript
UDemy, 2023
IBM Back-End Development Professional Certificate
COURSERA, 2025