Case studies

Case studies: AI and FinTech systems in production

How we built an AI research agent, a 105-tool MCP server, an options market data pipeline and a real-time voice assistant. Each study covers the problem, the architecture, the stack and the numbers from the shipped system. Below them are client projects you can open and use today.

Client names and identifying details are withheld under NDA. We are happy to walk through the architecture in more depth on a call.

All case studies

  • FinTech · Market data

    Real-time options flow and dark pool pipeline

    A market data pipeline that ingests the US options (OPRA) firehose and dark pool trades without dropping messages during market-open bursts.

    item bounded queue
    50k
    messages per batch write
    5,000
    • Python
    • Redis Streams
    • RediSearch
    • WebSockets
    • Multithreading
    • AWS S3
    Read the case study: Real-time options flow and dark pool pipeline
  • FinTech · Voice AI

    Real-time voice AI assistant with 56 tools

    A browser-based voice assistant with a live transcript, two voice engines behind one interface and metered usage billing, covered by 1,500+ automated tests.

    voice-callable tools
    56
    automated tests
    1,500+
    • Python
    • Django Channels
    • Celery
    • PostgreSQL
    • Redis
    • Gemini Live
    Read the case study: Real-time voice AI assistant with 56 tools
Client projects

Products we have built for clients

Web platforms, mobile apps, UI design and cloud infrastructure. Where the product is public, the link goes to the live site.

  • Adzviser marketing analytics website home page
    Web

    Adzviser Marketing Analytics

    A marketing analytics SaaS that brings ad and sales data from multiple sources into one dashboard for marketing teams.

    • Next.js
    • Tailwind CSS
    • Django
    • PostgreSQL
    • GCP
  • Ahrvo chat and payments platform website
    Web

    Ahrvo Chat and Payment Gateway

    A FinTech communication platform that combines real-time chat with built-in payment flows.

    • React
    • Django
    • PostgreSQL
    • Redis
  • Rent Insider property review and reputation platform
    Web

    Rent Insider Real Estate Intelligence

    A rental intelligence platform in Romania where renters and landlords look up property reviews, entity history and a community reputation score.

    • React
    • Chakra UI
    • Django
    • AWS RDS
  • Secprism software lifecycle management platform website
    Web

    Secprism Software Lifecycle Platform

    An enterprise platform for running software projects from kickoff to delivery, with task management, audit trails and role-based access.

    • React
    • Bootstrap
    • Django
    • PostgreSQL
    • AWS
  • GreenLync business communication app website
    Mobile

    GreenLync Business Communication App

    A real-time business messaging and collaboration app, shipped as a React Native mobile app and a PWA on a serverless AWS backend.

    • React Native
    • Next.js
    • AWS Lambda
    • DynamoDB
  • Letsmoo valet parking admin dashboard with ticket and vehicle counts
    Mobile

    Letsmoo Car Valet App

    A Flutter valet app covering booking through vehicle handoff, with separate driver and admin views and live status updates.

    • Flutter
    • Firebase
    Private or internal product
  • Stock trading software UI kit with dark dashboard screens
    UI/UX

    Stock Trading Software UI Kit

    A Figma design system for trading platforms: modular components, real-time dashboard layouts and order management screens.

    • Figma
    • Design system
    • Prototyping
    Private or internal product
  • Crypto trading platform UI with token market table
    UI/UX

    Crypto Trading Platform UI

    Figma designs for a crypto trading platform: charts, a live order book and a secure sign-in flow, responsive from mobile to desktop.

    • Figma
    • UI design
    • Responsive
    Private or internal product
  • Dailystore ecommerce UI design screens
    UI/UX

    Dailystore Ecommerce UI Design

    A shopping UI for daily essentials designed for fast browsing and a short checkout, built from reusable Figma components.

    • Figma
    • Component library
    • Adaptive layout
    Private or internal product
  • Illustration of an AWS EC2 infrastructure setup
    Cloud & DevOps

    AWS Cloud Infrastructure Setup

    Production AWS infrastructure for web applications: EC2, RDS, S3 and CloudFront, with CloudWatch monitoring and alarms.

    • EC2
    • S3
    • RDS
    • CloudFront
    • CloudWatch
    Private or internal product
  • Diagram of a real-time WebSocket and Redis architecture
    Cloud & DevOps

    Real-time WebSocket and Redis Stack

    A WebSocket layer backed by Redis for pushing live data to concurrent users, deployed with Docker and Nginx on Linux.

    • WebSocket
    • Redis
    • Docker
    • Nginx
    • Linux
    Private or internal product
More work

More projects we have shipped

A selection of other production systems across real-time data, generative AI, mobile and SaaS.

  • Real-time stock market application

    React, TypeScript and Django platform consuming a global exchange WebSocket feed and streaming live updates to concurrent clients, with role-based access control.

  • AI image generation system

    FastAPI service running fine-tuned LoRA models on Stable Diffusion with scalable GPU inference on AWS.

  • Encrypted real-time chat

    Django Channels chat with presence, read receipts and RSA end-to-end encryption.

  • High-performance marketing site

    Static export with lazy-loaded 3D scenes, JSON-LD structured data and build checks for bundle size, SEO rules and WCAG AA contrast.

Start a project

Have a similar system to build?

Tell us what you want to ship. You will get a technical roadmap and a fixed-scope proposal within 48 hours.

  • Reply within 1 business day
  • NDA on request
  • You own 100% of the IP