Software Developer

Full-Stack Developer specialized in .NET and React, with three years of experience building enterprise ERP systems. I design APIs, model complex business logic and build operations-focused interfaces, taking part in the entire software lifecycle, from requirements analysis to production support.

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Projects

Loan System API
01

Loan System API

REST API for a real informal lending business. There are no fixed installments: interest is charged monthly on the balance and, if it goes unpaid, it compounds. Handles customers, loans, payments and the business cash box.

  • Append-only ledger: balances are computed from immutable entries and mistakes are fixed with reversals
  • Idempotent payments with row locking to prevent duplicate charges
  • JWT authentication with refresh tokens and admin and worker roles
  • Automatic monthly interest charges, audit log and integration tests
dotnet

.NET

postgresql

PostgreSQL

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MinesweeperJS
02

MinesweeperJS

The classic Minesweeper rebuilt from scratch. Board generated at runtime, neighboring-bomb calculation and recursive opening of empty areas with a single click.

  • Three difficulty levels + custom board generator
  • Flags and question marks with right click
  • Timer and remaining bomb counter
  • Responsive UI optimized for mobile play
html

HTML

css

CSS

javascript

Javascript

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Who Is the Impostor?
03

Who Is the Impostor?

Local party game where the phone gets passed around. Everyone gets the same word except the impostor, who gets a similar one and has to blend in until they're found out

  • Secret role and word assignment, one turn at a time
  • Discussion and voting phase with round-based elimination
  • Persistent players with their own photo and turn order
react-native

React Native

typescript

Typescript

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Skills

typescript

Typescript

javascript

Javascript

react

React

vue

VUE

angular

Angular

tailwind

Tailwind

bootstrap

Bootstrap

nextjs

NextJS

dotnet

.NET

node

NodeJS

express

Express

mongodb

MongoDB

sqlserver

SQL Server

postgresql

PostgreSQL

firebase

Firebase

claude

Claude

codex

Codex

copilot

GitHub Copilot

Experience

Ethical

Ethical Pharmaceutical

2022 - 2025

Programmer Analyst

I took part in the development of the company's ERP, on both the front and back end, turning business requirements into functional interfaces and reliable operational workflows.

  • • Development and maintenance of an enterprise ERP system.
  • • Implementation of business logic and backend services using C# and ASP.NET (.NET Core).
  • • Design and integration of APIs for communication between modules and internal systems.
  • • Development of user interfaces with Vue, focused on functionality and user experience.
  • • Management, querying and optimization of SQL Server databases.
  • • Module integration and handling of data flow between different system components.
  • • Diagnosis and resolution of technical issues, providing support to users and production applications.
  • • Continuous improvement of system performance, stability and scalability.
vuedotnettailwindtypescriptsqlserver

Contact

Let's Work Together

darlin10xz@gmail.com

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