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VSValter Silva

~/ Hi, I'm

Valter da Silva

Software Developer · Backend Developer · Java Developer · Software Engineer

Software developer focused on building modern applications, APIs and complete systems — solutions that connect technology to real problems.

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Lins, SP · BrazilJavaSpring BootPostgreSQLReact

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01About

Software engineering, grounded in real problems

I'm a Software Engineering student at Unilins, in the final term of my degree. My path covers both development and technical support: I've built web applications and system integrations, worked with databases, and handled L2 support and infrastructure.

My main focus is backend/fullstack development — Java, Spring Boot,NodeJS, Typescript, APIs, databases and software architecture — always thinking about the product being built, not just the code.

I also work with and study QA, automation and artificial intelligence. Coming from support gave me a practical view of what happens to software after deployment: incidents, root causes and stability.

Education
Software Engineering — Unilins
10th semester · final stage of the degree
Focus
Backend with Java and Spring Boot
Location
Lins, São Paulo, Brazil

02Experience

Where I've worked

  1. January 2026 — June 2026

    Customer Support Analyst II

    Solutis TecnologiasClient: SABESP

    Support and infrastructure

    Specialized second-level (L2) technical support for SABESP, focused on incident resolution, IT infrastructure and system stability.

    • Handled and resolved technical incidents as specialized second-level support.
    • Investigated the root cause of reported issues.
    • Supported IT assets and network infrastructure.
    • Followed tickets end to end within the agreed SLAs.
    • IT Support
    • Infrastructure
    • Troubleshooting
    • Incident Management
    • Root Cause Analysis

  2. September 2025 — November 2025

    Junior Software Developer

    Linx

    Development

    Built web solutions for dental clinics, covering scheduling, procedures and clinical records.

    • Developed and maintained web features for dental clinics.
    • Worked on scheduling, procedure and medical record flows.
    • Integrated and automated workflows with n8n.
    • Built React interfaces backed by SQL Server.
    • Java
    • Spring
    • NodeJS
    • Typescript
    • SQL Server
    • n8n

03Technologies

Stack and tools

Each technology shows where it was used. Not everything here is professional experience — and the site makes that clear.

Backend

  • Java(Professional, Projects, Studies)
  • Spring Boot(Professional, Projects, Studies)
  • Spring Security(Professional, Projects)
  • Spring Data JPA(Professional, Projects)
  • Node.js(Professional, Projects, Studies)
  • Express(Projects, Studies)
  • REST APIs(Professional, Projects, Studies)

Frontend

  • React(Professional, Projects, Studies)
  • JavaScript(Professional, Projects, Studies)
  • TypeScript(Professional, Projects)
  • Next.js(Professional, Projects)
  • HTML(Professional, Projects, Studies)
  • CSS(Professional, Projects, Studies)

Database

  • PostgreSQL(Professional, Projects, Studies)
  • MySQL(Professional, Projects)
  • SQL Server(Professional)
  • SQL(Professional, Projects, Studies)
  • Flyway(Projects)

DevOps / Infra

  • Docker(Projects)
  • Docker Compose(Projects)
  • Git(Professional, Projects)
  • GitHub(Professional, Projects)
  • Testcontainers(Projects)
  • AWS(Studies)

Automation / AI

  • n8n(Professional)
  • AI integrations(Projects)

Support & Operations

  • IT Support(Professional)
  • Infrastructure(Professional)
  • Troubleshooting(Professional)
  • Incident Management(Professional)
  • Root Cause Analysis(Professional)

Other

  • Python(Studies)
  • PHP(Projects)
  • Unity(Projects)

04Projects

What I'm building

Products in development, academic work and experiments beyond the web.

  • In development

    Orça Aí

    Multi-tenant SaaS for estimates and proposals, starting with construction and renovation companies. Spring Boot backend with per-company data isolation and session-based authentication.

    • Java 25
    • Spring Boot 4
    • Spring Security
    • Spring Session JDBC
    • Spring Data JPA
    • PostgreSQL
    • +6
    DetailsCode
  • In development

    EiTanol

    Fuel price comparison platform by region, designed to answer where it actually pays to fill up. Built in stages, with architecture decisions recorded as ADRs.

    • Java 25
    • Spring Boot 4
    • PostgreSQL
    • PostGIS
    • Docker Compose
    • Next.js
    • +3
    DetailsCode
  • Working MVPAcademic project2026

    Jurimetria AI

    Capstone project: a system for tracking court cases that uses AI to extract structured summaries from rulings and feed a jurimetrics dashboard.

    • Node.js
    • Express
    • PostgreSQL
    • React
    • Vite
    • Tailwind CSS
    • +3
    DetailsCode

  • Forest of the Fallen

    3D game built in Unity, with combat systems, AI-driven enemies, player controllers and animations.

    • Unity

Other projects

  • Pro AI Proposals

    Artificial intelligence project. Details will be published along with the repository.

  • In development

    TCG Campeões

    Project in development. Details will be published along with the repository.

  • Academic project2023

    Tá Barato

    Product price search across supermarkets, with data entered by the stores themselves. Every search shows the cheapest store first.

    • PHP
    • MySQL / MariaDB
    • JavaScript
    • HTML
    • +1
    DetailsCode
  • Academic project2023

    Central de Currículos

    Academic project at Unilins connecting companies with students close to graduating or already graduated, through résumé registration and management.

    • PHP
    • MySQL / MariaDB
    • JavaScript
    • HTML
    • +1
    DetailsCode

github.com/ValterVS

View GitHubView all repositories

05Education

Degree and training

Software Engineering

Unilins — Centro Universitário de Lins

10th semester · final stage of the degree

Lins, São Paulo, Brazil

Courses & Training

  • Full-Stack Web Development Bootcamp

    Instructor: Dr. Angela Yu

    • React
    • Node.js
    • Express.js
    • PostgreSQL
    • Web Development
    • Software Engineering fundamentals

  • Java: do iniciante ao profissional

    Instructor: Leonardo Moura

    • Java
    • Spring Boot
    • CRUD
    • Database Applications
    • Backend Development

06Contact

Let's talk

Open to software development opportunities, especially backend. Send a message or find me on the links below.

Email

contato@valtersilva.dev.br
Lins, São Paulo, Brazil

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