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100% Async Systems Engineering

Engineering Case Studies.

In-depth architectural breakdowns of high-concurrency Python pipelines, TLS/JA3 impersonation, offline-first mobile apps, and 14-day production SaaS MVPs.

01
Full-Stack SaaS Engineering

High-Velocity Full-Stack SaaS MVP Architecture: Astro, Svelte, Tailwind, Better Auth & NeonDB

How we ship production SaaS MVPs from spec to live URL in 14 business days, combining modern web frontends with relational serverless Postgres, Better Auth, and Polar billing.

Development Velocity
14-Day Delivery
Lighthouse Performance
99 / 100
Astro Svelte 5 Tailwind CSS Better Auth NeonDB Polar Billing FastAPI
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02
Custom Market Data Pipelines

Real-Time Market Data Ingestion & Insider Trading Dashboard: Open-Source NSE API Wrapper

Engineering PNSEA, an open-source Python library for real-time NSE data extraction and Pandas DataFrame formatting, driving a private FastAPI analytics backend on Railway.

License & Data Fees
$0 / month
Infrastructure Spend
$5 - $15 / month
Python 3.12 pnsea FastAPI Pandas NeonDB Vercel Railway
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03
Resilient Data Infrastructure

Bypassing Anti-Bot Systems via TLS Fingerprinting Without Headless Browsers

How StealthKit and AmzPy combine cryptographic TLS/JA3 impersonation with session-profile tuning to extract protected data at sub-400ms latency on a 48MB memory footprint.

Average Latency
381 ms
Memory Footprint
48.5 MB
Python 3.12 curl_cffi stealthkit amzpy BeautifulSoup4 TLS/JA3/JA4 HTTP/2
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04
Web-to-Native Mobile

Native Mobile Performance from a Web Core: Astro + Svelte 5 + Capacitor 8 iOS Architecture

Packaging an optimized web codebase into native iOS containers via Capacitor 8 with zero-latency local state and instant Apple App Store clearance.

Build & Ship Velocity
15 Days
App Store Approval
100% First Pass
Astro Svelte 5 Capacitor 8 iOS TypeScript
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