Open to opportunities
BuildingSystemsThat Scale
Full-stack developer specializing in distributed systems, cloud infrastructure, and scalable applications. Turning complex problems into elegant solutions.
Tech I work with:TypeScriptNode.jsReactPythonPostgreSQLAzureDocker
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Blockchain
DeFi Projects
Live blockchain builds focused on swaps, staking, liquidity, and on-chain arbitrage execution.
Live on Vercel
ChainScope
Chain-agnostic explorer that turns any wallet into an interactive 3D fund-flow graph with risk heuristics and a streamed AI summary.
3D force graphEVM + Solana + BitcoinRisk heuristicsClaude summaries
Live on Vercel
Nexus DeFi Exchange
Hybrid AMM + on-chain order book DEX with ERC-2612 permits and ERC-4626 staking vaults on Arbitrum.
Hybrid AMM + order bookERC-2612 permitsERC-4626 vault
Source on GitHub
Flashloan Arbitrage Bot
Multi-chain flashloan system with MEV protection, real-time monitoring, and zero-fee Balancer flashloans.
Balancer flashloansMEV protectionMulti-chain
Sandbox demo
Bank Stablecoin Platform
Canton-based stablecoin platform with issuance, compliance, lending, swaps, and multisig.
Daml smart contractsCompliance + KYCLending + swapsDemo login: admin / canton2026
AI Lab
Generative AI Projects
Hands-on explorations in RAG systems, autonomous agents, and applied machine learning. Each project includes live demos and full source code.
More projects coming soon
3 new AI/ML projects currently in development
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SW
Shan Wain
Full-Stack Developer
About MeLearn more about me
Backend-leaning developer who loves solving hard problems
I'm a full-stack developer with nearly 4 years of experience building distributed systems for high-stakes clients including the IMF, UN, and World Bank at EY Technology Consulting.
I specialize in backend architecture, API design, and cloud infrastructure — but I'm equally comfortable building polished user interfaces. Currently working on CROW, a SaaS platform for automotive repair shops.
4+
Years Experience
15x
System Scaling
95%
Vulnerability Reduction
$1M+
Projects Delivered
TypeScriptLanguage
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Node.jsRuntime
ReactFrontend
Next.jsFramework
GraphQLAPI
PostgreSQLDatabase
MongoDBDatabase
RedisCache
DockerDevOps
KubernetesDevOps
AzureCloud
AWSCloud
KafkaMessaging
EthereumBlockchain
SolidityLanguage
Auth0Security
TypeScriptLanguage
JavaScriptLanguage
PythonLanguage
Node.jsRuntime
ReactFrontend
Next.jsFramework
GraphQLAPI
PostgreSQLDatabase
MongoDBDatabase
RedisCache
DockerDevOps
KubernetesDevOps
AzureCloud
AWSCloud
KafkaMessaging
EthereumBlockchain
SolidityLanguage
Auth0Security
Auth0Security
SolidityLanguage
EthereumBlockchain
KafkaMessaging
AWSCloud
AzureCloud
KubernetesDevOps
DockerDevOps
RedisCache
MongoDBDatabase
PostgreSQLDatabase
GraphQLAPI
Next.jsFramework
ReactFrontend
Node.jsRuntime
PythonLanguage
JavaScriptLanguage
TypeScriptLanguage
Auth0Security
SolidityLanguage
EthereumBlockchain
KafkaMessaging
AWSCloud
AzureCloud
KubernetesDevOps
DockerDevOps
RedisCache
MongoDBDatabase
PostgreSQLDatabase
GraphQLAPI
Next.jsFramework
ReactFrontend
Node.jsRuntime
PythonLanguage
JavaScriptLanguage
TypeScriptLanguage
From the Blog
Latest Thoughts
AISep 10, 2026
My LLM Scorer Lost to "return True"
I rebuilt Public Radar's recall scorer with tool calling, a strict schema and verbatim evidence, then measured it against 20 hand-labelled recalls. A function that alerts on everything beat it. Here's why, and the eval I built before shipping any of it.
12 min read
SecuritySep 10, 2026
Students Will Game Your Grader: Trusting Test Output Across Five Toolchains
One property in a pom.xml turned six failing tests into BUILD SUCCESS and exit code 0. How I rebuilt Kadra's grader to decide from parsed evidence across vitest, pytest, go test, Maven Surefire and dotnet test, and the places my own fixes were wrong first.
12 min read
EngineeringSep 10, 2026
Eleven Months of Stripe Webhooks Returning 405
For about eleven months, every Stripe webhook sent to my SaaS hit nginx and bounced. Behind that sat a test-mode signing secret, a column nothing ever wrote, a tier name the database rejected, and prices that disagreed with what Stripe charged. None of it was visible from inside the repo.
11 min read