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
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 + swaps
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
JavaScriptLanguage
PythonLanguage
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
SecurityJan 10, 2026
What I Learned Rebuilding an Entire Auth System from Scratch
When I joined the PFM project at EY, the existing authentication system was a security nightmare. Here's how I rebuilt it with Auth0.
8 min read
ArchitectureJan 5, 2026
Scaling a System from 500 to 7,500 Users: Lessons Learned
A deep dive into the database optimizations, caching strategies, and frontend improvements that enabled 15x scale.
12 min read
AIDec 28, 2025
Adding AI to Your SaaS Without Breaking the Bank
How I integrated OpenAI into CROW while keeping costs manageable. Practical tips for prompt engineering and caching.
6 min read