Available for new projects

I turn your company's manual routine into custom-built web systems.

Full Stack Developer. I build complete web systems for your business — and deploy them with enterprise-level security. Two real systems already live: a healthcare provider and a dairy company.

I want a system like this See live projects

Pedro A. Rubem Lima

FULL STACK DEVELOPER · BA

Front-end

HTML · CSS · JavaScript

Back-end

Java · Spring Boot

Database

MySQL

Deploy

VPS · Nginx · HTTPS

Real projects, live in production

Two business problems solved with custom software.

These are not exercises or prototypes: they are live systems used by real companies every day.

Management & Controlling

NexControl

For União Médica — health insurance provider

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!THE PROBLEM

The controlling department relied on scattered spreadsheets and manual processes to manage tasks, finances, and compliance — with no traceability and a high risk of error.

✓THE SOLUTION

A complete web system that centralizes tasks, projects, finances, and auditing in one place, with role-based access, dashboards, and a regulatory compliance module (ANS RN-518).

→THE RESULT

More control and less rework: every action is recorded in an immutable audit trail, with financial reports (income statement and cash flow) and real-time management dashboards.

Technologies Java · Spring BootMySQLJavaScriptChart.jsDocker · Nginx

Inventory & Sales

JB Estoque

For JB Laticínios — dairy company

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!THE PROBLEM

Managing inventory and sales of perishable products by hand causes losses: expired products, sales not reflected in stock, and no reliable history.

✓THE SOLUTION

A browser-based inventory and sales system with expiration control, automatic stock validation at the time of sale, and separate access levels by role.

→THE RESULT

Clear visibility of inventory, error-free sales records and PDF reports by period — with all history preserved, including deactivated customers.

Technologies Java · Spring BootMySQLJavaScriptApache PDFBoxVPS · HTTPS

Security included — not optional

Your business data, protected like in a bank.

Every system I deliver already comes with layers of protection that are often missing in homemade solutions. It's not a detail left for the end — it's the foundation of everything.

Hardened login

Brute-force intrusion attempts are automatically blocked by IP and user.

Secure passwords

Stored with BCrypt encryption — never readable, not even by me.

Encrypted data

Sensitive information protected with AES encryption and 100% HTTPS traffic.

Controlled access

Each user sees only what their role allows, with protection against CSRF, XSS, and request abuse.

Pedro Augusto Rubem Lima

Full Stack Developer · Feira de Santana, BA

Front-endHTML · CSS · JavaScript

Back-endJava · Spring Boot

DatabaseMySQL

Deploy & infraVPS · Nginx · HTTPS

Live systems2 in production

I handle the project from code to server.

I'm a full stack developer: I write the interface the user sees (HTML, CSS, and JavaScript) and the engine behind it (Java with Spring Boot and MySQL). And I don't stop at the code — I deploy the system myself, configuring the server (VPS), Nginx, and HTTPS.

In practice, you deal with one person from start to finish — no outsourcing, no loose ends, and with security in mind from day one.

Let's talk

Do you have a process that still runs on a spreadsheet?

Tell me your business challenge and I'll show you how a custom system can solve it — on time, secure, and fully deployed.

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