DZVENELet's talk

Software engineering for real business

Ideas
built into
working
software

Product development, technical architecture and modern software solutions for businesses that want to move faster and solve real problems.

Start a project View case studies
  1. 01Product development
  2. 02System architecture
  3. 03Modernization
  4. 04AI integration
  5. 05Technical consulting
Real projects
AstroLingua
Language Learning App
AstroLingua screenshot
InvoCore
Invoicing Platform
InvoCore screenshot
SmartWMS
Warehouse Management
SmartWMS screenshot
Scarf Runner
Mobile Game
Scarf Runner logo
02Services

End-to-end
software engineering
for your business

I help businesses turn ideas into working products, modernize existing systems and build scalable architecture. From prototype to production — with a focus on maintainability, security and real business value.

  1. 01

    Product Development

    Web, mobile and cloud applications from concept to launch.

  2. 02

    Technical Architecture

    Scalable, maintainable systems for long-term growth.

  3. 03

    Modernization & Refactoring

    Improve performance, security and code quality.

  4. 04

    AI Integration

    Integration of LLMs and AI tools into products and business workflows.

  5. 05

    Consulting

    Architecture reviews, technical audits, team support and advice.

  • • Scalable
  • • Secure
  • • Maintainable

// Engineering approach

03Products

Products
we build and grow

Our own software products, developed and maintained by Dzvene. Solving real problems, not just prototypes.

AstroLingua screenshot

AstroLingua

Mobile app

AI-powered language learning for DTZ/B1 exams and daily practice.

Website
InvoCore screenshot

InvoCore

Web app

Invoicing platform with XRechnung, ZUGFeRD and DATEV export.

View Website
SmartWMS screenshot

SmartWMS

Enterprise

Warehouse management system with real-time features and analytics.

View Details
Scarf Runner logo

Scarf Runner

Game

2D endless runner game for mobile (Android/iOS) built with Godot.

In development
04Work

SmartWMS

Warehouse Management System

Scalable warehouse management system with real-time features, role-based access control and detailed analytics. Used in logistics and manufacturing environments.

View Live Demo Source Code (private)
SmartWMS dashboard
Real-time
Stock, orders and shipping over SignalR
Multi-tenant
Architecture
Role-based access
Fine-grained permissions
3 clients
Web, iOS and Android
12 languages
Localized product site
04Engineering

Engineering
that scales

Modern architecture, clean code and proven technologies for scalable and maintainable systems.

  • —

    Architecture

    Modular monoliths, microservices, multi-tenant systems.

  • —

    Technology Stack

    React, Next.js, .NET 8, Node.js, Python (FastAPI), PostgreSQL, SignalR, Docker, AWS/Azure and more.

  • —

    Security

    OAuth2/OIDC, RBAC, secure APIs, data protection.

  • —

    DevOps & Infrastructure

    CI/CD, containerization, cloud deployment, monitoring and observability.

  • —

    AI & Automation

    Integration of LLMs and AI tools to improve products and internal workflows.

  • —

    Quality

    Code quality, testing, documentation and long-term support.

// Example: modular architecture
const app = new Application({
  modules: [
    OrdersModule,
    WarehouseModule,
    ShippingModule,
    UsersModule,
    AnalyticsModule,
  ],
  multiTenant: true,
  realTime: true,
  aiIntegration: true,
});
Client Apps
(Web / Mobile)
API Gateway
Core Modules
Orders
Warehouse
Shipping
Analytics
PostgreSQL
Cache
File Storage
External APIs
05About

Nikolai Rybalkin

Software Engineer · Architect · Product Developer

I'm a senior full-stack engineer with 13+ years of experience in web, mobile and cloud development. I help businesses design and build scalable applications, make the right technical decisions and deliver products that solve real problems.

Areas of Focus

  • Product development
  • System architecture
  • Modernization
  • AI integration
  • Technical consulting

Experience Highlights

  1. 2018 – 2024
    Auditdata
    Senior Full-Stack Engineer
    Scalable solutions for the hearing care industry.
  2. 2023 – 2024
    NewGround (Evolution)
    Full-Stack Engineer
    Web applications for the gaming industry.
  3. 2021 – 2023
    KaaIoT
    Full-Stack Engineer
    IoT platform and backend services.
  • Based in Germany
  • Open to remote work
  • Available for international projects
Get in touch
06Contact

Have an idea?
Let's build it.

Tell me about your product, system or problem — I'll get back with a clear next step.

hello@dzvene.com