Open to new connections

Full-Stack Developer
Backend & Mobile

I build scalable APIs, mobile applications, and integrated systems for real businesses.

NestJS Flutter TypeScript PostgreSQL MySQL MongoDB Prisma Firebase Docker

View projects Get in touch

About

I build real solutions, not just code.

Developer with 1.5 years of experience building backend, mobile, and distributed systems solutions.

I have worked on e-commerce platforms, multitenant systems, marketing integrations, and mobile apps in production. I have collaborated on international projects with clients from the United States, focusing on scalability and system stability. I have also participated in DevOps processes for continuous integration and deployment (CI/CD) on Google Cloud Platform (GCP) and Docker.

I specialize in solving complex problems with scalable and efficient architectures. I contribute to architecture design and technical documentation, and communicate in English (C1) with international teams and clients.

Experience
1.5 years
Projects
5+
Focus
Backend · Mobile

Projects

Selected work.

Real production projects. Each one with a concrete problem and a deliberate technical solution.

Ecommerce Backend

Backend for an e-commerce platform with marketing integrations and order management.

What I did

  • REST APIs with NestJS for products, orders, and users
  • Integration with email marketing platforms (SendGrid, Mailgun)
  • Order management, inventory tracking, and status handling
  • JWT authentication and role-based access control
NestJSPostgreSQLMySQLSendGridMailgun

Automated marketing workflows and improved conversion tracking.

Multitenant SaaS System

SaaS platform with multitenant architecture supporting multiple clients in a single instance.

What I did

  • Design and implementation of multi-tenant architecture
  • Data isolation per client using Prisma and PostgreSQL
  • Organization-level roles and permissions system
  • Automated onboarding for new tenants
NestJSPostgreSQLPrisma

Scalable multi-client platform with guaranteed data security between tenants.

CDN / Storage System

S3-compatible file storage system using MinIO for production asset management.

What I did

  • MinIO server setup and administration
  • File upload, download, and deletion API
  • Integration with the main backend via presigned URLs
  • Bucket management and access policies
MinIONode.jsNestJS

Mobile Applications

Cross-platform mobile apps (iOS & Android) connected to APIs and cloud services.

What I did

  • UI development with Flutter
  • Integration with backend REST APIs
  • Push notifications with Firebase Cloud Messaging
  • Authentication with Firebase Auth
FlutterDartFirebase

PHP CRM (Legacy System)

Maintenance and optimization of a legacy CRM system built in PHP with a MySQL database.

What I did

  • Identification and fix of critical bugs
  • Optimization of slow SQL queries
  • Module refactoring to improve maintainability
  • Documentation of existing functionality
PHPMySQL

Services

How I can help you.

  1. API Development

    Robust and scalable REST and GraphQL APIs with NestJS or Express, covering authentication, validation, and documentation.

  2. Mobile Applications

    Cross-platform apps with Flutter integrated with existing backends and cloud services.

  3. Integrations

    Connections to email platforms, marketing tools, payment gateways, and third-party services.

  4. SaaS / Multitenant Systems

    Multi-client architectures with data isolation, roles, and per-tenant configuration.

  5. System Optimization

    Analysis, refactoring, and performance improvements for legacy or growing systems.

  6. DevOps & CI/CD

    Continuous integration and deployment pipelines on Google Cloud Platform (GCP) and Docker containers for reliable production environments.

Contact

Working on something interesting?

I enjoy connecting with people who build things. Feel free to reach out.

Get in touch

Contact

Let's talk.

Whether it's about a project, an idea, or just to connect.