Curriculum Vitae
Sahil Langoo
Full Stack Systems Engineer • Kashmir, India
Executive Summary
Full Stack Systems Engineer with a B.Tech in Computer Science Engineering (CGPA: 7.07) from the University of Kashmir, currently engineering systems at Eresolution Consultancy Services. Specializes in crafting high-performance, responsive web architectures, distributed edge computing proxies, and AI integrations. Demonstrated ability to boost website performance by 30-40% (sub-50ms TTFB, 0.00 CLS) and increase organic reach and user engagement by 20-30%. Dedicated to building software that is fast by default, zero-waste, and engineered with strict type safety.
Professional Experience
Systems & Backend Integration EngineerCurrent
Eresolution Consultancy Services • Remote
- ›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.
HonoTypeScriptCloudflare WorkersNode.jsPythonGoDockerSentryPlaywrightRazorpayMeta CAPI
Full Stack Developer
Taffin.Tech • Remote, Srinagar, Kashmir
- ›Led the engineering of an AI-integrated job board platform for a French startup, driving a 25% increase in user engagement.
- ›Architecting high-performance responsive web user interfaces using Tailwind CSS, Twig, and React integrated with a Symfony backend, reducing page-load times by 40%.
- ›Implementing strict EU-compliant GDPR privacy protocols and dynamic SEO rendering pipelines, boosting organic search traffic by 30%.
ReactTailwind CSSTwigSymfonyPHPAI IntegrationDynamic SEOGDPR Compliance
Freelance Software Engineer
SquadCoders • Kashmir, India
- ›Architected and deployed static web systems at SquadCoders, delivering sub-50ms global TTFB and 0.00 CLS across client platforms leveraging Astro, TypeScript, and Cloudflare Pages.
- ›Engineered bespoke web systems including SoulMedia, Hotel Akbar Sonamarg, and TravelKit, reducing bundle payloads by 65% and achieving 100/100 Lighthouse performance benchmarks through 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.
- ›Developed custom zero-dependency build-time quality hooks in Node.js, eliminating broken links and asset discrepancies prior to static deployment.
AstroTypeScriptTailwind CSSdaisyUICloudflare Pages & R2ZodSentryDocker
Full Stack Trainee
Elance Technologies • Srinagar, Kashmir, India
- ›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.
PHPJavaScriptMariaDBBootstrapHTML5 / CSS3REST APIs
Technical Core Competencies
Languages & Core
TypeScriptJavaScript (ES2023+)PHPPythonTypstLaTeX / TeXSQLGoCC++HTML5CSS3 / SASS / OKLCHBash
Frameworks & Web Architecture
Next.js 16React 19Astro 7HonoNode.jsExpressTailwind CSS v4daisyUI 5Drizzle ORMBetter AuthTwigSymfonyRedux ToolkitTanStack RouterTanStack QueryTanStack TableLingui i18nPartytownWordPress
Cloud & Edge Infrastructure
Cloudflare Pages & WorkersCloudflare TurnstileCloudflare R2Cloudflare WAF & DNSMeta CAPI GatewaysVercelDockerAzureGitHub Actions CI/CD
Databases, Storage & Quality Tooling
MySQLPostgreSQLSQLite / Cloudflare D1MariaDBCloudflare KVRedisMongoDBGit & GitHub CLIpnpmBunWranglerPlaywrightSentryPostmanZodFigmaAdobe PhotoshopAdobe IllustratorPWA / TWALM Studio / Local SLMs (Gemma)
Education & Academic Credentials
CGPA: 7.07 / 10.02021 - 2023
University of Kashmir (North Campus)
Bachelor of Technology in Computer Science Engineering (B.Tech CSE)
Baramulla, Kashmir, India
Key Coursework:
Data Structures & AlgorithmsObject Oriented ProgrammingCloud ComputingSoftware EngineeringWeb Technologies
CGPA: 6.22 / 10.02016 - 2019
Kashmir Govt Polytechnic
3-Year Diploma in Computer Science Engineering
Srinagar, Kashmir, India
Key Coursework:
Computer ProgrammingDatabase ManagementComputer Networks
Professional Certifications & Accreditations
Meta (Facebook) / Coursera2024
Meta Front-End Developer Professional Certificate
Verified Credential
Frontend Masters (Scott Moss)2024
Complete Next.js Developer
Verified Credential
Scaler Masterclass2024
Ecommerce Platform Using React
Verified Credential
Google / Coursera2023
Crash Course in Python
Verified Credential
Udemy / ZTM (Andrei Neagoie)2023
Full Stack Web Development (Zero To Mastery)
Verified Credential