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ShangeshS.
Blockchain & Full Stack Engineer

Shangesh S.

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Blockchain & Full Stack Engineer with 1.5 years of remote experience across three companies. Founder of Streamlet, a live media-infrastructure platform. Ships production Solidity contracts, Next.js/Node.js applications, and Dockerized CI/CD.

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Shangesh S, Blockchain & Full Stack Engineer
Solidity, Foundry, ERC-4337, Gas Optimization, Next.js, Docker, CI/CD, OpenZeppelin, Node.js, Fuzz Testing
12+
Contracts Shipped to Mainnet
3
Companies Shipped For
2
Hackathons Won or Finalled
Who am I?

I'm a Blockchain & Full Stack Engineer based in Bangalore, India. Over 1.5 years I've shipped for three remote companies — writing production Solidity that survives audits, cutting gas costs through storage-layout work, and wiring the Docker and CI/CD that gets it all to mainnet. Alongside that I founded Streamlet, a media-infrastructure platform running HLS video, image optimisation, and document hosting behind a single API. I care about the unglamorous parts: test coverage, runbooks, and deploys that take minutes instead of hours.

You don't need more code.
You need code that survives the audit.

Contracts that survive the audit. Deploys that take minutes. Interfaces people finish using.

shangesh@dev: ~
$: cat resume.txt
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B.Tech in Computer Science and Engineering

Alliance University · Kalvium

2024 – 2028 Bangalore, India

MY WORK: EXPERIENCE

2025 – Present

Founder & CTO

@StreamletBangalore, India (Remote)
  • Founded and shipped a production media-infrastructure platform unifying HLS video streaming, WebP image optimisation, and document hosting behind one API, sustaining 99.99% uptime and sub-50ms stream starts on a global edge network.
  • Built a six-stage pipeline taking 4 GB uploads through adaptive HLS transcoding to 4K, thumbnail extraction, Whisper AI captions in 11 languages, and signed-URL, WAF, and multi-DRM protection before edge delivery.
  • Set technical direction end to end: published the open-source @streamlet/sdk npm client with REST API docs, and built usage-metered billing across five tiers benchmarked against Mux and Cloudflare Stream.
Next.jsNode.jsHLSDockerSDKEdge
Oct 2025 – Jul 2026

Blockchain & Full Stack Engineer

@Digital South TrustBengaluru, India (Remote)
  • Led delivery of 12 production Solidity contracts, from spec through testing, audit fixes, and mainnet deployment.
  • Cut average gas costs 22% via storage-layout refactors, custom errors, and batched state updates.
  • Automated Docker and CI/CD releases, cutting deployment time from 2 hours to 15 minutes, and authored runbooks adopted by the engineering team.
SolidityFoundryDockerCI/CDGas Optimization
Jul 2025 – Sep 2025

Blockchain & Full Stack Engineer

@AMALASLebanon (Remote)
  • Delivered secure Solidity contracts for an Ethereum DApp at 90% unit and fuzz test coverage, hardened against reentrancy, access-control, and overflow risks with OpenZeppelin.
  • Coordinated with a distributed remote team across 3 time zones, translating founder requirements into technical specs and presenting weekly demos to non-technical stakeholders.
SolidityOpenZeppelinFuzz TestingEthereumDApps
Aug 2024 – Oct 2024

Full Stack Engineer Intern

@Virtua TechnologiesAustralia (Remote)
  • Architected end-to-end MERN features linking React front ends to Node.js/Express APIs and blockchain modules, secured with token auth and role-based access.
  • Scaled responsive Web3 interfaces to 500+ concurrent users at 1.4s load time by cutting JavaScript bundle size 40% with code splitting and lazy loading, lifting Core Web Vitals and engagement 25%.
ReactNode.jsExpressMongoDBWeb3

Things I've Built.

Infrastructure

Streamlet — Media Infrastructure Platform

Founded and shipped a production media platform unifying HLS video streaming, WebP image optimisation, and document hosting behind one API — 99.99% uptime and sub-50ms stream starts on a global edge network.

  • Automated a six-stage pipeline taking 4 GB uploads through adaptive HLS transcoding to 4K, thumbnail extraction, Whisper AI captions in 11 languages, and signed-URL, WAF, and multi-DRM protection before edge delivery.
  • Published the open-source @streamlet/sdk npm client with REST API docs, and built usage-metered billing across five tiers with a cost calculator benchmarking against Mux and Cloudflare Stream.
Next.jsNode.jsHLSWhisper AIDockerSDKEdge
Blockchain

Votium — Decentralized Voting Platform

A blockchain voting platform for on-chain elections on Base Sepolia and Polygon Amoy, enforcing one vote per address, hidden tallies, and emergency pause in immutable OpenZeppelin contracts tested with Foundry.

  • Implemented ERC-4337 account abstraction for gasless voting, removing the wallet-funding step that blocks new Web3 users.
SolidityFoundryERC-4337OpenZeppelinBasePolygon
AI

Stockify — AI-Powered Portfolio Assistant

An AI portfolio assistant delivering risk-adjusted SIP recommendations, orchestrating Gemini 1.5 Pro and LLaMA 3.3 via LangChain, LlamaIndex, and a FAISS store over Yahoo Finance data.

LangChainLlamaIndexFAISSGeminiFastAPIReact
Web

Ink Well — Full Stack Blog Platform

A serverless blog platform with SSR and static generation, scoring 99% on Google Lighthouse at 0.6s page loads.

  • Shipped a real-time markdown editor, threaded comments, and authentication, serving 1000+ concurrent readers at 99.9% uptime via indexed queries and caching.
Next.jsMongoDBTailwind CSSServerlessSSR
Blockchain

FlashFund — Decentralized Crowdfunding

An Ethereum crowdfunding platform for transparent, on-chain fundraising campaigns — contract-enforced goals, deadlines, and refunds behind a clean Next.js interface.

SolidityEthereumNext.jsHardhatDeFi
Blockchain

ChainLet — Web3 Wallet

A browser wallet in the shape of MetaMask: ERC-20 token support, testnet faucet integration, and multi-account key management.

ReactWeb3.jsEthereumERC-20Wallet
Blockchain

BuyAChai — Decentralized Tip Platform

A full-stack dApp letting supporters buy creators a virtual chai in ETH, with the contract, frontend integration, and test suite built end to end.

SolidityEthereumHardhatReactSmart Contracts
Blockchain

SHAN — ERC-20 Token

An ERC-20 implementation with a token faucet, miner rewards, and a full Hardhat test suite covering the reward and transfer paths.

SolidityERC-20HardhatEthereumTesting
AI

Solana-AI — No-Code Contract Generator

Describe the program you want in plain English and it generates the complete Anchor Rust code for a Solana contract.

Next.jsGroq SDKLLaMA 3.3AnchorSolana
Web

Fin-Pay — Virtual Banking System

A MERN banking application with end-to-end encryption, processing 10K+ transactions at a 99.95% success rate and sub-200ms API responses via MongoDB indexing and aggregation pipelines.

ReactNode.jsExpressMongoDBEncryption
AI

Finance-Analyzer

A retrieval-backed analyst that reads financial documents and answers questions about stocks, bonds, and instruments with cited context.

PythonFastAPILangChainVector StoreStreamlit
Web

MERN-Food — Delivery Platform

A food delivery application with live order tracking, payment integration, and an admin dashboard for menu and order operations.

ReactNode.jsExpressMongoDBTailwind CSS

Client work

2026

CRAV

A food takeaway platform on iOS, Android and web — GPS restaurant discovery, live order tracking, Razorpay checkout, and coupon handling.

2025

The Infra

Crafting spaces that inspire — a marketing site for a construction and infrastructure firm.

2025

Grammar — Interior Design

An interior design studio's catalogue site for premium furniture collections.

2025

Perimeter Control System

A product site for an electric fencing and perimeter security company.

The Stack

What I reach for, grouped by the job it does.

Languages

JavaScriptTypeScriptPythonSoliditySQLHTML5CSS3

Blockchain / Web3

SolidityFoundryThirdwebOpenZeppelinERC-20 / 721ERC-4337Gas OptimizationEVM

Web

React.jsNext.js 15TailwindCSSNode.jsExpress.jsFastAPIREST APIsPrisma ORMSSRServerless

Data & AI

MongoDBPostgreSQLFAISSPineconeLangChainLlamaIndexVercel AI SDKGeminiGroqWhisper AI

DevOps & Cloud

DockerDocker ComposeGitHub ActionsCI/CD PipelinesLinuxNginxVercelCloudflareSecrets ManagementMonitoring & UptimeWebhooksnpm Publishing

Practices

GitCode ReviewAgileTechnical DocumentationUnit & Fuzz TestingSDK Design

Key Achievements

National Finalist — PromptRepo × Kalvium AI Hackathon

Solo entrant among 100+ teams nationwide, February 2025.

Winner — State-Level Coding Hackathon

1st of 200+ participants. Government of Tamil Nadu, November 2023.

Published @streamlet/sdk on npm

Open-source SDK client with REST API docs, shipped alongside the Streamlet platform.

22% Gas Reduction in Production

Storage-layout refactors, custom errors, and batched state updates across live contracts.

2h → 15min Deploy Pipeline

Dockerized CI/CD releases plus runbooks adopted by the wider engineering team.

90% Test Coverage on Audited Contracts

Unit and fuzz coverage hardened against reentrancy, access-control, and overflow risk.

Ready to
ship.

Open to blockchain and full-stack roles, freelance builds, or a conversation about contract design and gas budgets.

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