AI apps · Scalable SaaS · Distributed systems · Blockchain apps · AI apps · Scalable SaaS · Distributed systems · Blockchain apps ·
Nish
Hands-on Lead Software Engineer with end-to-end product ownership, from early ideas through to fully delivered features.
Building AI apps, scalable SaaS, distributed systems & blockchain apps
9 playground apps
PythonTypeScriptGo
Visa · IBM · M&S
Node.js · FastAPI · AWS
WORKED WITH
BondexArena EntertainmentIBMVisaM&SVirginTelefonica
Stack
PythonFastAPI · Pydantic · LangChain · data pipelines
TypeScriptNode.js · NestJS · React · Next.js
Goconcurrent, high-volume services
AI & data
Distributed systems
Cloud & infra
Messaging & design
Data stores
Also
AI-assisted dev
Writing
Crafting Better Code with TypeScript
read →Why starting with ‘unknown’ might be better than ‘any’ in TypeScript
read →Rethinking Union Types in TypeScript
read →Elsewhere
Playground
Playground. Click one to open it.
01
Actxio
Documents into actions and dates
TypeScriptNext.jsNode.jsLLM (OpenAI)Supabaseactxio.com ↗02Risk Engine
Flags risky financial activity
PythonFastAPIPostgreSQLriskengine.satharasinghe.com ↗03Package Pulse
Dependency health checks
TypeScriptPythonNext.jsNode.jsFastAPISSE streamingpackagepulse.satharasinghe.com ↗04Ledger Match
Finds mismatched transactions
TypeScriptPythonNext.jsFastAPIledgermatch.satharasinghe.com ↗05Interactive Python
Checks your Python as you learn
TypeScriptReactPyodidenishpy.satharasinghe.com ↗06Python Playground
Learn by running examples inline
TypeScriptNext.jsPyodidepython.satharasinghe.com ↗07Web3 Wallet
Checks a blockchain wallet balance
TypeScriptWeb3NestJSNode.jsTatum SDKPreactwallet.satharasinghe.com ↗08Claims API
Insurance claims processor
TypeScriptNestJSNode.jsMongoDBMicroservicesSwaggerclaims.satharasinghe.com ↗09Club Booking
School clubs with a waiting list
TypeScriptPythonNext.jsNode.jsFastAPIPostgreSQLcbooking.satharasinghe.com ↗Built with TypeScript, React & Node.js · View Code ↗