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Vivek C.
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Vivek C.

Senior Full Stack & AI Architect | React, Next.js, Node.js, Python

💎 𝐓𝐎𝐏 𝐑𝐀𝐓𝐄𝐃 𝐏𝐋𝐔𝐒 — 𝐓𝐎𝐏 𝟑% 𝐎𝐍 𝐔𝐏𝐖𝐎𝐑𝐊 | 𝟭𝟬𝟬% 𝗝𝗢𝗕 𝗦𝗨𝗖𝗖𝗘𝗦𝗦 | 10+ 𝗬𝗥𝗦 · 13𝗞+ 𝗛𝗢𝗨𝗥𝗦 · 62 𝗝𝗢𝗕𝗦 · $200𝗞+ 𝗘𝗔𝗥𝗡𝗘𝗗 | 5.0★ 𝗔𝗖𝗥𝗢𝗦𝗦 58 𝗥𝗘𝗩𝗜𝗘𝗪 Hey there! Looking for a battle-tested full-stack engineer who can turn your vision into a high-performance, scalable, revenue-generating product? You're in the right place. I'm a Software Engineer with 10+ years of experience, 13,000+ hours logged, 62 completed contracts, a 100% Job Success Score, and a perfect 5.0 rating across 58 reviews. From early-stage startups to enterprise brands, I help businesses build, optimize, and scale platforms to millions of users. Trusted by Barnes & Noble, Binance, Restoration Hardware, Exotel, and Rapchat — among others. 𝗪𝗛𝗔𝗧 𝗜 𝗕𝗥𝗜𝗡𝗚 𝗧𝗢 𝗧𝗛𝗘 𝗧𝗔𝗕𝗟𝗘 ✅ 13,000+ Hours Delivered → Long-term partnerships, not one-off gigs ✅ 5.0★ Across 58 Reviews → Every client, every project ✅ 100% Job Success Score → 62 contracts, zero disputes ✅ Enterprise-Level Track Record → Binance, Barnes & Noble, Restoration Hardware, Exotel, Rapchat ✅ AI-Native Engineering → LLM integrations, RAG pipelines, and AI agents shipped to production 𝗪𝗛𝗔𝗧 𝗜 𝗕𝗨𝗜𝗟𝗗 🚀 Multi-tenant SaaS — auth, billing, role-based access, admin dashboards, tenant isolation 🤖 AI systems — OpenAI and Anthropic APIs, LangChain, RAG pipelines, vector databases, OCR and document processing, AI agents ⚙️ API-first backends — REST and GraphQL, Node.js/Express, Python/FastAPI and Django, microservices 📞 Communications & CPaaS — cloud telephony integrations, messaging APIs, contact-center and CX workflows 🏥 Healthcare platforms — FHIR-compliant data mapping, HIPAA-aware workflows, secure interoperability 👥 HR & enterprise SaaS — HRMS platforms, ATS integrations, workflow and approval systems 💻 Frontend at scale — React, Next.js, TypeScript, Redux, Tailwind CSS, design systems 🏢 𝐖𝐇𝐄𝐑𝐄 𝐈'𝐕𝐄 𝐖𝐎𝐑𝐊𝐄𝐃 ▪️ Enterprise retail & eCommerce — Barnes & Noble, Restoration Hardware ▪️ Crypto & Web3 — Binance ▪️ Communications & CPaaS — Exotel ▪️ EdTech — Bartleby ▪️ HR & enterprise SaaS — Beehive Software ▪️ Consumer & music tech — Rapchat ▪️ Identity & secure data — Private Identity LLC ▪️ Nonprofit & social impact — LiquidDonate, NIJC ▪️ Community & marketplace platforms — TheInCircle ▪️ Sports & operations — Advance Football ▪️ Local business systems — Calgary Lock & Safe Also: aviation and operations management, healthcare interoperability, ATS integrations, product configuration systems. 𝗖𝗢𝗥𝗘 𝗦𝗞𝗜𝗟𝗟𝗦 & 𝗧𝗘𝗖𝗛𝗡𝗢𝗟𝗢𝗚𝗜𝗘𝗦 ▪️ Frontend: React.js, Next.js, Redux, TypeScript, Vue.js, React Native, Tailwind CSS ▪️ Backend: Node.js, Express.js, GraphQL, Python, FastAPI, Django, Flask ▪️ Databases: PostgreSQL, MySQL, MongoDB, Redis, Firebase, Supabase, vector databases ▪️ AI & Automation: OpenAI API, LLM workflows, LangChain, RAG, AI agents, OCR, TensorFlow.js ▪️ Cloud & DevOps: AWS, Google Cloud, Microsoft Azure, Docker, CI/CD ▪️ Architecture: Multi-tenant SaaS, microservices, system design, REST APIs 𝗪𝗛𝗬 𝗖𝗟𝗜𝗘𝗡𝗧𝗦 𝗞𝗘𝗘𝗣 𝗖𝗢𝗠𝗜𝗡𝗚 𝗕𝗔𝗖𝗞 🎯 Architecture first — you get a written scope and technical plan before I write a line of code ⚡ Fast, predictable delivery — working software in weekly increments, no black boxes 🔁 Long-term partnerships — 13,000 hours across 62 contracts speaks for itself 💬 Clear communication — I flag problems early, not at the deadline 🌍 Flexible availability — 40+ hours/week, overlapping US and EU time zones 𝗪𝗛𝗔𝗧 𝗖𝗟𝗜𝗘𝗡𝗧𝗦 𝗦𝗔𝗬 "Vivek provides a solution-oriented approach, proactively identifies problems, and delivers effective solutions." "Vivek delivered exceptional performance in a highly complex enterprise environment." 𝗟𝗘𝗧'𝗦 𝗕𝗨𝗜𝗟𝗗 𝗦𝗢𝗠𝗘𝗧𝗛𝗜𝗡𝗚 𝗧𝗛𝗔𝗧 𝗦𝗖𝗔𝗟𝗘𝗦 I don't just write code — I solve problems, design systems, and ship products that hold up under real load. Send me a message with what you're building and where it's stuck. I'll tell you honestly whether I'm the right fit, what it realistically takes, and what I'd tackle first — before you commit to anything. Thanks, Vivek Chandel — AI Integration | AI Agent Development | LLM Integration | RAG | Vector Database | AI Automation | OpenAI API | Anthropic Claude API | LangChain | Model Context Protocol (MCP) | AI Chatbot Development | Full-Stack Development | MERN Stack | React | Next.js | TypeScript | Node.js

🇮🇳Mohali, India$32/hr100% JSS4.96 (60)Since Oct 2019

Earnings and projects

MRR
$2k

Last 6 months ÷ 6

World#23,055 / 412k
🇮🇳Country#2,870 / 45.9k
Revenue, last 30 days
$237

Last 6 months: $12k

World#79,149 / 412k
🇮🇳Country#8,423 / 45.9k
Total earnings
$247k

Billed in all: $258k

World#10,942 / 412k
🇮🇳Country#1,752 / 45.9k
Per project
$3.9k

$2.4k in the last 6 months

World#44,555 / 412k
🇮🇳Country#5,066 / 45.9k
Projects, last 6 months
5
0% fixed100% hourly
World#41,746 / 412k
🇮🇳Country#4,996 / 45.9k
Projects in all
64

Across 69 contracts

29% fixed71% hourly
World#47,317 / 412k
🇮🇳Country#8,083 / 45.9k

Earnings, last 30 days

$258k+$237 earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$257.8k$258.0k$258.2kOct 8Oct 23Nov 7

Skill rankings: Top 6% in ExpressJS

Ranked by MRR among everyone on Upwork with the skill.

  1. #38FHIR182 freelancers · 🇮🇳 #17Top 21%
  2. #128Solution Architecture1,009 freelancers · 🇮🇳 #10Top 13%
  3. #210MERN Stack3,086 freelancers · 🇮🇳 #86Top 7%
  4. #315ExpressJS5,651 freelancers · 🇮🇳 #74Top 6%
  5. #428Django5,931 freelancers · 🇮🇳 #92Top 7%
  6. #447LangChain3,821 freelancers · 🇮🇳 #94Top 12%
  7. #466FastAPI4,337 freelancers · 🇮🇳 #97Top 11%
  8. #661SaaS Development5,201 freelancers · 🇮🇳 #190Top 13%