Systems Architecture Case Studies

Read detailed architectural profiles of systems built by our candidates. We focus on low-level structures, network scaling patterns, and validation loops.

Java Fullstack

Distributed E-Commerce Core API

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A multi-database microservice architecture designed to handle transaction volumes. Integrates token authorization modules, custom Spring gateway filters, and transactional integrity guarantees across services, engineered during our Java Fullstack Training.

Client Browser HTTP / JWT Header Spring Gateway Auth & Route Filters JWT Validation Verify Token Auth Service PG Session GET /catalog Catalog Service Replica SQL POST /orders Order Service Spring Data JPA Write DB Redis Cache

Database Schemas

3NF normalization, foreign keys indices, partitioned billing records

Caching Strategy

Redis caching wrapping catalog details to minimize database locks

Verification Staging

Staging environment verifying JSON payloads and route redirections

MERN Full Stack

Real-Time Collaborative Code Editor

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A web application synchronizing document states across multiple users. Implements room connection limits, WebSocket message validations, and asynchronous database writing queues, developed in our Full Stack Training.

React Client 1 React Client 2 React Client N WebSockets TCP Node.js Server Express & Socket.io Socket Room Hub In-Memory Room State Map Redis Pub/Sub Distribute Edits Globally Async DB Worker MongoDB Cluster Store

Network Protocol

WebSockets running over persistent TCP channels with heartbeats

State Management

React context API syncing editor states with validation checks

Staging Deployment

Deployed with environment variable boundaries separating client-server keys

Data Engineering

Stock Price ETL Streaming Pipeline

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A streaming ETL data pipeline loading parsed API messages into database warehouses. Built using Spark structured streaming and schedulers, designed as part of our Data Engineering Training.

API Data Stream Raw JSON Payloads Apache Kafka Topic Message Buffer Spark Streaming Cast & Filter Pipeline PG Analytics Power BI AWS S3 Cold

Stream Parsing

Pyspark structuring casting schemas and filtering timestamp exceptions

Storage Partitioning

AWS S3 data folder partition maps matching calendar year/month paths

Workflow Controller

Scheduled data verification pipelines managing database upsert updates

AI Red Teaming & Security

Adversarial Prompt Injection & NeMo Guardrails Shield

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An enterprise GenAI security architecture engineered to intercept direct jailbreaks, RAG context exfiltration, and PII leaks. Designed as part of our AI Red Teaming & Security Course.

Adversarial Probing

Microsoft PyRIT & NVIDIA Garak automated vulnerability scans

Active Moderation

NeMo Guardrails with Colang rules blocking prompt injections live

Staging Verification

Live staging audit reporting zero system prompt leakage

Interested in Engineering Professional Systems?

Our trainees don't copy-paste basic syntax. They configure systems, design API routing layouts, and write code.

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