React · Next.js · TypeScript · Node.js · PostgreSQL
I build modern web applications with an evidence-driven engineering approach: clear architecture, automated tests, authentication and authorization, persistent data, CI, documentation, and explicit technical boundaries.
- Junior software developer focused on Frontend and Full Stack web development.
- Practical project experience with React, Next.js, TypeScript, Node.js, REST APIs and PostgreSQL.
- Building portfolio cases with testing, CI, authentication/authorization, persistence, accessibility and documented engineering decisions.
- Exploring AI Application Engineering through bounded, source-backed experiments with the OpenAI API, embeddings, semantic retrieval and deterministic evaluation.
- Currently seeking my first professional software-development opportunity, especially Junior Frontend, Full Stack and compatible Backend roles.
- Based in Brazil and open to remote opportunities.
Frontend
TypeScript · React · Next.js · JavaScript · Tailwind CSS
Backend & Data
Node.js · Express.js · REST APIs · PostgreSQL · Drizzle ORM · Firebase · Cloud Firestore
Quality & Delivery
Jest · Supertest · React Testing Library · Playwright · GitHub Actions · Docker · Docker Compose
AI Engineering Evidence
OpenAI API · Embeddings · Semantic Search · AI Evaluation · Prompt Engineering
1. Skill Certify Hub — AI Application Engineering / Quality
Next.js + TypeScript certification-platform case focused on governed engineering evidence, accessibility, deterministic quality automation and a bounded AI proof of concept.
Evidence includes: external OpenAI embeddings execution, semantic ranking, citations linked to sources, abstention/fallback controls, deterministic evaluation and human review boundaries.
The AI work is intentionally presented as project/POC evidence — not as production RAG, production agents or production AI operations.
2. Medical Appointment System Next — Full Stack / Backend
Full Stack / Backend scheduling case using Next.js, React, TypeScript, Node.js/Express, PostgreSQL and Drizzle ORM.
Evidence includes: REST API development, authentication and authorization, persisted scheduling flows, domain validation, Jest/Supertest testing, Docker/Compose, CI and a declarative Kubernetes baseline.
Declarative Kubernetes configuration is not presented as production cluster-operations experience.
3. E-Commerce Shop Next — Frontend / Full Stack
Modern e-commerce case built with Next.js, React, TypeScript, Firebase Authentication/Admin and Firestore persistence.
Evidence includes: protected routes, authenticated sessions, profile/address/cart/favorites/order persistence, server-authoritative order creation, automated tests, dependency checks and Playwright browser acceptance.
4. Misael Alves Portfolio Next — Frontend / Professional Portfolio
Professional portfolio built with Next.js, React and TypeScript to present projects, technical evidence, skills and contact channels.
Live: misael-alves-portfolio-next.vercel.app
- Prefer verifiable implementation evidence over unsupported claims.
- Keep project work separate from professional employment experience.
- Use automated tests and CI to protect important application behavior.
- Treat authentication, authorization, validation and persistence as explicit engineering boundaries.
- Document what a project does prove and what it does not prove yet.
- Evolve projects according to real technical gaps instead of adding technologies only for keywords.
I am continuing to deepen the same flagship projects instead of creating isolated demos. Current study and implementation priorities include stronger backend architecture, event-driven systems, observability, cloud/runtime evidence, infrastructure automation and more mature delivery workflows.
Frontend · Full Stack · Backend Node.js / APIs · Selected entry-level AI Application Engineering roles