---
title: "Resume & Curriculum Vitae | Sahil Langoo"
description: "Engineering resume and CV of Sahil Langoo. Career experience at Eresolution, technical competencies, and software systems timeline."
canonicalUrl: "https://sahillangoo.in/resume/"
author: "Sahil Langoo"
---

# Sahil Langoo - Curriculum Vitae

> Engineering resume and CV of Sahil Langoo. Career experience at Eresolution, technical competencies, and software systems timeline.

- **Role**: Full Stack Systems Engineer & Systems Architect
- **Location**: Srinagar, Jammu & Kashmir, India 190003
- **Website**: https://sahillangoo.in
- **Email**: hello@sahillangoo.in
- **GitHub**: https://github.com/sahillangoo
- **LinkedIn**: https://linkedin.com/in/sahillangoo
- **daily.dev**: https://daily.dev/sahillangoo (5.4k+ reads)
- **Google Developer**: https://g.dev/sahillangoo
- **Direct PDF Download**: https://sahillangoo.in/resumes/Resume-Sahil-Langoo.pdf
- **Full-Stack Resume**: https://sahillangoo.in/resumes/Resume-Sahil-Langoo-FullStack.pdf
- **Frontend Resume**: https://sahillangoo.in/resumes/Resume-Sahil-Langoo-Frontend.pdf
- **DevOps Resume**: https://sahillangoo.in/resumes/Resume-Sahil-Langoo-DevOps.pdf
- **Forward-Deployed Resume**: https://sahillangoo.in/resumes/Resume-Sahil-Langoo-Forward-Deployed.pdf

## Technical Core Competencies

- **Languages**: TypeScript, JavaScript (ES2023+), PHP, Python, Typst, LaTeX / TeX, SQL, Go, C, C++, HTML5, CSS3 / SASS / OKLCH, Bash
- **Frameworks & Web Architecture**: Next.js 16, React 19, Astro 7.3, Hono, Huma v2, Chi, Node.js, Express, Tailwind CSS v4, daisyUI 5, Shadcn UI, Drizzle ORM, Better Auth, Twig, Symfony, Redux Toolkit, TanStack Router, TanStack Query, TanStack Table, TanStack Form, Lingui i18n, Partytown, WordPress
- **Cloud & Edge Infrastructure**: Cloudflare Pages & Workers, Cloudflare Turnstile, Cloudflare R2, Cloudflare WAF & DNS, Meta CAPI Gateways, Meta Pixel, Vercel, Docker, Azure, GitHub Actions CI/CD
- **Databases & Tooling**: MySQL, PostgreSQL, SQLite / Cloudflare D1, MariaDB, Cloudflare KV, Redis

## Professional Experience

### Systems & Backend Integration Engineer | Eresolution Consultancy Services
- **Period**: Apr 2025 - Present
- **Location**: Remote
- **Key Responsibilities & Highlights**:
  - Engineered distributed Hono API gateways on Cloudflare Workers for Experian credit OTP proxies and Meta CAPI server-side dispatching, maintaining 99.99% uptime and sub-100ms p99 execution latency.
  - Triaged production Sentry exception telemetry across 90-day intervals, resolving client-side race conditions and payment transport failures, improving checkout transaction success rate by 14%.
  - Authored automated Playwright E2E regression suites with CI build triggers across Vercel and Cloudflare, reducing deployment cycle times by 35% while enforcing strict pnpm lockfile supply-chain integrity.
  - Integrated enterprise technical SEO, Google Search Console indexing pipelines, Google Tag Manager event schemas, and Microsoft Clarity heatmaps across lead funnels, maximizing organic crawl health and behavioral conversion tracking.

### Full Stack Developer (Fixed-Term European Contract) | Taffin.Tech
- **Period**: Apr 2024 - Aug 2025
- **Location**: Remote, Srinagar, Kashmir
- **Key Responsibilities & Highlights**:
  - Led the engineering of a responsive, multilingual job board platform for a French startup, driving a 25% increase in user engagement.
  - Architected high-performance tabular interfaces using TanStack Table, React, and DaisyUI, rendering 10,000+ postings with multi-facet filtering and zero UI latency.
  - Implemented Schema.org (JobPosting) structured JSON-LD for Google Rich Results and Lingui i18n localization, boosting organic search discoverability by 30%.
  - Architected programmatic SEO (pSEO) taxonomy routes, automated XML sitemaps, and Google Search Console crawl diagnostics, securing zero-error indexing across multilingual job archives.

### Co-Founder & Principal Consultant (Independent Studio / Contract) | SquadCoders
- **Period**: Dec 2023 - Present
- **Location**: Kashmir, India
- **Key Responsibilities & Highlights**:
  - Co-founded and engineered static web architectures and backend services at SquadCoders, delivering sub-50ms global TTFB and 0.00 CLS across client platforms on Astro, TypeScript, and Cloudflare Pages.
  - Architected high-performance Go REST API (Chi, Huma v2, pure-Go SQLite) featuring RFC 9457 error contracts, constant-time auth, and deterministic in-memory pure-Go PDF proposal and invoice generation.
  - Engineered custom web systems including Rooh Yaseen cinematography showcase, SoulMedia UK, Hotel Akbar Sonamarg, and TravelKit, reducing bundle payloads by 65% with zero-JS baselines.
  - Developed and launched 10+ high-performance websites, achieving an average page-load improvement of 30% and a 15% boost in client project conversion rates.
  - Integrated technical SEO, machine-readable GEO/AEO knowledge bases (llms.txt, XML sitemaps, OpenGraph protocols), and GA4/Clarity behavioral tracking across client projects including SoulMedia and HackerForce.
  - Developed custom zero-dependency build-time quality hooks in Node.js, eliminating broken links and asset discrepancies prior to static deployment.

### Full Stack Trainee | Elance Technologies
- **Period**: Jan 2023 - Jun 2023
- **Location**: Srinagar, Kashmir, India
- **Key Responsibilities & Highlights**:
  - Completed an intensive 6-month full-stack development curriculum mastering HTML5, CSS3, JavaScript, PHP, Bootstrap, and MariaDB.
  - Engineered a full-stack database-backed application integrating third-party APIs and dynamic responsive UI layouts.
  - Collaborated on a team development sprint optimizing web accessibility and cross-device performance, contributing to a 40% increase in mobile traffic.

## Key Technical Projects

- **Tech Resume Expert Career Platform**: Premier open-source career intelligence platform encoding Harvard MCS & FAANG screening heuristics, 75+ rule linter, and Typst/LaTeX compilers. (Stack: typst, typescript, latex, open-source, agent-skills, ast)
- **Multi-Tenant Ads and Edge APIs**: A multi-tenant ad platform with isolated branding, Vercel branch deploys, Meta Pixel and server-side CAPI, and Razorpay subscriptions. (Stack: nextjs, react, vercel, git-branch-workflows, meta-pixel, meta-capi, razorpay, sha256-hashing, typescript, cloudflare-workers, hono, sentry, playwright, zod)
- **Rooh Yaseen Editorial Cinematography Showcase**: An ultra-minimalist, high-contrast cinematography & photography portfolio built for UK Director of Photography Rooh Yaseen. (Stack: astro, tailwindcss, lenis, motion, zod, cloudflare-pages)
- **EduCore School Management Platform**: A school management platform on Next.js with Shadcn, TanStack, Drizzle, MySQL, Better Auth, and Cloudflare edge services. (Stack: nextjs, react, shadcn-ui, tanstack-table, tanstack-query, tanstack-router, tanstack-form, zod, drizzle-orm, mysql, better-auth, cloudflare-waf, cloudflare-r2, telegram-api, nodemailer, razorpay, tailwindcss, typescript, sentry)
- **SquadCoders API & Studio Engine**: A Go REST API on Chi and Huma v2 with pure-Go SQLite, RFC 9457 errors, constant-time auth, and in-memory PDF generation. (Stack: go, chi, huma-v2, sqlite, rfc-9457, rest-api, pdf-engine)

## Education & Certifications

- **Bachelor of Technology (B.Tech) in Computer Science Engineering**
  - University of Kashmir (CGPA: 7.07, Capstone: Listify)
- **3-Year Diploma in Computer Science Engineering**
  - Kashmir Govt Polytechnic

### Verified Certifications
- **Meta Front-End Developer Professional Certificate** - Meta (Facebook) / Coursera (2024)
- **Complete Next.js Developer** - Frontend Masters (Scott Moss) (2024)
- **Ecommerce Platform Using React** - Scaler Masterclass (2024)
- **Crash Course in Python** - Google / Coursera (2023)
- **Full Stack Web Development (Zero To Mastery)** - Udemy / ZTM (Andrei Neagoie) (2023)