Production Deliverables · Verified Architectures · Zero AI Hype

Real systems. Measured impact. Clean code.

Global buyers don't need a 45-minute pitch deck. Here is how I solve complex edge backend, checkout performance, and full-stack architecture challenges for clients — with exact metrics, architecture decisions, and code foundations.

Technical Teardowns

Featured Case Studies

Four representative client systems engineered, optimized, and deployed to production.

Edge & E-Commerce Developer Platform SaaS

Global Edge Subscription & Checkout Engine

A high-traffic developer tooling platform suffered from slow international checkouts and intermittent dropped subscription renewal webhooks on traditional server infrastructure.

The Challenge

Dynamic pricing lookups caused 240ms+ TTFB for overseas visitors, and webhook signature verification failures left paid subscribers unable to access accounts.

The Architecture

Migrated the checkout and billing engine to Cloudflare Workers (V8 isolates) with D1 SQLite sequential consistency. Added zero-DB geo-IP routing and an idempotent HMAC-SHA256 webhook engine.

14ms Global Checkout TTFB

0 DB Reads on Unauth Hits

100% Webhook Replay Protection

99.99% Edge Uptime

Cloudflare Workers D1 SQLite PayPal REST API Cashfree Webhooks TypeScript

Architecture Migration B2B Operations SaaS

Next.js Monolith to Edge Islands Migration

A venture-backed B2B portal was burning through $1,800/month in Vercel serverless execution fees while clients suffered 2.5-second cold-start delays across marketing and documentation views.

The Challenge

Bloated React server components and client-side hydration waterfalls created excessive compute overhead on static content pages.

The Architecture

Decomposed the monolith into an Astro 7 pre-rendered static core with isolated Preact islands for real-time Kanban and billing widgets. Deployed across Cloudflare Pages edge storage.

82% Hosting Bill Reduction

24ms P99 Page Latency

100/100 Lighthouse Performance

-88% JS Payload Size

Astro 7 Preact Islands Tailwind CSS Cloudflare Pages Zero-JS Core

CI/CD & Automation Series-A Fintech Startup

Autonomous Linear CI/CD & Staging Previews

Development progress was bogged down by endless status syncs, review bottlenecks, and client confusion over how to test PR deliverables before merging.

The Challenge

Clients needed to review working software within 24–48 hours without having to pull Git branches or run local environments.

The Architecture

Created a two-way Linear webhook pipeline that triggers automated staging preview deployments (e.g. preview-[id].sazm.in) on task delivery, accompanied by instant Telegram alerts and PR links.

4+ hrs Weekly Meetings Cut

< 48h Guaranteed Delivery SLA

1-Click Instant Live Previews

0 Manual Deployment Steps

Linear API GitHub Actions Dynamic Staging Isolates Telegram Webhooks

Core Web Vitals Direct-to-Consumer Brand

E-Commerce Core Web Vitals & Conversion Recovery

A high-traffic e-commerce storefront was hit with Google PageSpeed penalties (mobile score: 42) and severe layout shift, depressing organic search ranking and mobile conversion rates.

The Challenge

Third-party font downloads blocked first paint, heavy tracking scripts blocked the main thread, and unsized hero graphics caused severe cumulative layout shifts (CLS > 0.35).

The Architecture

Replaced render-blocking web fonts with system fonts, enqueued analytics via non-blocking edge Content Security Policies, enforced explicit aspect ratios, and streamed edge HTML.

99/100 Mobile PageSpeed

0.00 Cumulative Layout Shift

0.8s Largest Contentful Paint

+19% Mobile Checkout Conversion

Core Web Vitals HTMLRewriter System Fonts Zero CLS Layouts

Engineering Standard

How SazM ships software

Four non-negotiable principles embedded into every pull request and feature delivery.

⚡

Edge-first execution (< 20ms worldwide)

Compute runs close to your users via Cloudflare V8 isolates. No cold starts, no single-region lag, and zero unnecessary server maintenance.

🔒

Strict end-to-end TypeScript types

Strong types from SQLite schema to React components. Breaking changes are caught at compile time before code ever reaches production.

📦

Zero unnecessary dependencies

Every npm package is a liability. I build with standard Web APIs, minimal island hydration, and lightweight primitives that stay fast for years.

🛡️

Complete code ownership

Everything is committed directly to your repository. You own all intellectual property, clean documentation, and test suites with zero vendor lock-in.

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