Case Studies & Portfolio - Web Development, Mobile Apps & Backend Projects

PlayDeck is a developer toolkit that helps game creators integrate Telegram features and reach its 700M+ users. It enables in-game interactions, automated community tools, and seamless social sharing. Our team led the backend architecture, built real-time modules, secure payment systems, and ensured deep Telegram integration — all designed for scalability and high performance in a growing gaming ecosystem.

Technology Stack

• React
• TypeScript
• Kotlin
• Spring
• PostgreSQL
• ClickHouse
• JOOQ ORM
• Telegram Bot API
• Apache Kafka

A real-time data streaming system was developed for VTB Bank, capable of processing millions of messages per second. The project utilizes a tech stack based on Java 17, Spring, Kafka, PostgreSQL, as well as containerization and orchestration through Docker and Kubernetes. The solution enables real-time processing of vast amounts of data and ensures high performance for financial sector tasks.

Technology Stack

• Java 17
• Spring
• Kafka
• PostgreSQL
• Docker
• Kubernetes

Project Statistics

• Team Size: 5 people
• Duration: 9 months

A microservice architecture, including a biometric authorization system, was designed and implemented for Sber. The solution covers key client functions such as document generation, session tracking, and asynchronous integration with data spaces and other systems. The project is built using Spring, Java 17, Oracle, Docker, and Kubernetes for container management and scalability.

Technology Stack

• Spring
• Java 17
• Oracle
• Docker
• Kubernetes

Project Statistics

• Team Size: 5 people
• Duration: 18 months

A personalized advertising system for credit products was developed for Societe Generale Bank. The system includes a banner service, credit conveyor, and API for integration with external systems. The core technologies used include Java 11, Spring, Oracle, Docker, Kubernetes, and Jenkins for CI/CD processes. The project aims to improve customer engagement and automate credit operations.

Technology Stack

• Spring
• Java 11
• Oracle
• Docker
• Kubernetes
• Jenkins

Project Statistics

• Team Size: 5 people
• Duration: 12 months

An e-commerce site for a surfboard brand. Built with Next.js 14 and React, featuring Swiper and Open Graph markup. Static generation with Vercel, Webpack build system, HTTP/3, HSTS, and Priority Hints ensure fast, secure page loads.

Technology Stack

• React
• Next.js
• Swiper
• Webpack
• Open Graph

A company in the leisure and tourism sector. We built the site with Next.js 15 and React, using GSAP for animations and Swiper for carousels. The platform is secured with Cloudflare, Google reCAPTCHA, HTTP/3 support, HSTS, and 301 redirects for maximum performance.

Technology Stack

• Next.js
• Webpack
• React
• Swiper

A project for an upscale residential complex. Built with Next.js 14 and React, featuring Swiper, lit-element, and a Storyblok CMS. Integrated Google Maps and WhatsApp Chat. Deployed on Vercel with static generation, analytics (GTM, GA, FB Pixel, Yandex) and performance optimizations.

Technology Stack

• Next.js
• Storyblok
• React
• Swiper
• lit-element

A creative web project using Next.js 14.2.5 and React. Hosted on Vercel with static generation and optimized for speed and scalability. Built with Webpack and secured by HSTS policies for modern, HTTPS-first web delivery.

Technology Stack

• React
• Next.js
• Webpack
• React
• HSTS

UX/UI website design and development for an architectural bureau. MIR globally transforms space and influences the cultural code, forming a new world.

Technology Stack

• Design & User Experience

Project Statistics

• Team Size: 3 people
• Duration: 6 months

The company developed a SaaS platform, EventStripe, designed for ticket sales at events, supporting high burst loads of up to 10,000 sessions. The project leverages modern technologies such as Next.js, Java 20, Spring, Docker, Kubernetes, and monitoring tools like Jenkins, ELK, and Grafana. The primary focus was to ensure system stability under high loads and provide scalability flexibility.

Technology Stack

• Spring
• Java 20
• Next.js
• Docker
• Kubernetes
• Jenkins
• ELK
• Grafana

Project Statistics

• Team Size: 3 people
• Duration: 12 months

A lightweight TOTP code provider was built for secure multi-factor authentication in corporate systems. Users can register a second factor and receive codes via email, Telegram, SMS, push, or authenticator apps. The service integrates with IAM platforms and supports session policies like device limits and timeouts.

Technology Stack

• Next.js
• TypeScript
• Telegram Bot API
• Redis
• PostgreSQL
• Docker
• CI/CD (GitHub Actions)

Forschungsmittel.com – Platform description will be added later.

Technology Stack

• Next.js 14
• React
• TypeScript
• GSAP

A curated mobile app showcasing Berlin's underground culture — from hidden bars to local art spaces. Built with Flutter and designed for smooth native iOS experience.

Includes real-time map with custom markers, offline caching, secure authentication (Apple/Google), and user personalization features like saved places and folders.

Technology Stack

• Flutter
• Dart
• Supabase
• Firebase Auth
• Google Maps API
• Apple/Google Sign-In