# Pricing & Engineering Engagement Models - Sahil Langoo

Last updated: 2026-10-07
Canonical: https://sahillangoo.in/pricing.md
Contact: hello@sahillangoo.in
Location: Srinagar, Jammu & Kashmir, India (Available for global remote engagements)

## Overview

Sahil Langoo provides specialized technical consulting, systems architecture design, and high-performance engineering implementation for engineering teams, digital agencies, and technology startups.

All engagements follow transparent scope boundaries, deterministic delivery milestones, and production SLAs.

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## 1. Architecture Advisory & Codebase Audit

- **Price**: $1,500 flat fee
- **Billing**: 50% upfront, 50% on delivery
- **Turnaround**: 5 to 7 business days
- **Scope**:
  - Comprehensive architectural review of existing web systems, edge infrastructure, or distributed proxies.
  - Performance audit: Core Web Vitals (LCP, INP, CLS), TTFB, asset bundling, and runtime JavaScript profiling.
  - Security audit: WAF configuration, header hardening, bot mitigation, and token validation.
  - Written audit report with prioritized remediation roadmap and code-level examples.
- **Deliverables**: Detailed technical PDF/Markdown report, 60-minute executive findings walkthrough, and async Slack/email Q&A for 14 days post-delivery.

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## 2. Server-Side Meta CAPI & Edge Proxy Turnkey Implementation

- **Price**: $3,500 flat fee
- **Billing**: 50% upfront, 50% on deployment to production
- **Turnaround**: 10 to 14 business days
- **Scope**:
  - Custom edge tracking gateway built on Cloudflare Workers and Hono.
  - Server-side Meta Conversions API (CAPI) with SHA-256 user data hashing and deterministic event deduplication (`event_id`).
  - Safari ITP and ad-blocker resilience guaranteeing 8.5+ Event Match Quality (EMQ).
  - Edge bot protection with Cloudflare Turnstile token verification.
- **Deliverables**: Production-ready Worker codebase, GitHub Actions CI/CD deployment pipeline, telemetry monitoring dashboards, and documentation.

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## 3. High-Performance Static Web Architecture & Migration

- **Price**: $4,500 to $7,500 (depending on page volume and CMS complexity)
- **Billing**: Milestones (30% kickoff, 30% staging review, 40% production launch)
- **Turnaround**: 3 to 4 weeks
- **Scope**:
  - Full migration from legacy SPAs or WordPress to Astro 7.3 static architecture.
  - Zero runtime client-side JavaScript by default, achieving 100/100 Google Lighthouse scores.
  - Type-safe content collections with Zod schema validation.
  - Automated Schema.org JSON-LD graphs (Person, Organization, Article, Product, Breadcrumbs) validated against Google Rich Results.
  - Cloudflare Pages deployment with edge routing and security headers.
- **Deliverables**: Complete source repository, staging deployment, production DNS cutover, and automated CI test suite.

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## 4. Technical SEO, GEO & Agent-Readiness Hardening

- **Price**: $2,500 flat fee
- **Billing**: 50% upfront, 50% on delivery
- **Turnaround**: 7 to 10 business days
- **Scope**:
  - End-to-end technical search audit and structured data overhaul.
  - Implementation of LLM discovery files: `llms.txt`, `llms-full.txt`, and Open Knowledge Format (`/okf/`) bundle.
  - RFC 9309 crawler policy configuration for AI bots (`OAI-SearchBot`, `PerplexityBot`, `Claude-SearchBot`).
  - RFC 8288 Link headers and edge markdown content negotiation via Cloudflare Pages Functions.
  - Programmatic SEO taxonomy design and internal linking equity graphs.
- **Deliverables**: Implemented code changes, verified GSC crawlability, and validation report.

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## 5. Fractional Systems Engineering & Advisory

- **Price**: $5,000 / month (or $1,500 / week)
- **Billing**: Monthly in advance
- **Availability**: 15 hours / week dedicated bandwidth
- **Scope**:
  - High-impact architectural guidance and code reviews for internal engineering teams.
  - Hands-on edge proxy, Cloudflare Worker, and TypeScript implementation.
  - Production incident triage, performance debugging, and latency profiling.
  - Direct communication via Slack, Discord, or GitHub PR reviews.
- **Commitment**: 1-month minimum, cancelable with 14 days notice.

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## Engagement Terms & Booking

- **Inquiries**: hello@sahillangoo.in
- **Contract**: Standard mutual NDA and Statement of Work (SOW) provided prior to kickoff.
- **Payment Methods**: Wire transfer, Wise, Stripe, or direct ACH.
- **Currency**: USD (INR accepted for India-based clients).
- **Portfolio & Case Studies**: https://sahillangoo.in/projects/