Sandeep Singh
Sandeep

Sandeep Singh

Backend & AI Engineer

Skills

Technologies I've built
production systems with.

13 years across 5 platforms. Here's what I use today and what got me here.

expert
advanced
intermediate
Current focus

AI & Machine Learning

Python
advanced
OpenAI API
advanced
Azure OpenAI
advanced
RAG Pipelines
advanced
FastAPI
advanced
Vector Embeddings
advanced
Pinecone
advanced
pgvector
advanced
LangChain
intermediate
Multi-agent Systems
intermediate
LlamaIndex
intermediate

Backend & APIs

REST APIs
expert
Node.js
advanced
Express.js
advanced
TypeScript
advanced
PostgreSQL
advanced
NestJS
advanced
Microservices
advanced
GraphQL
intermediate
Redis
intermediate
MongoDB
intermediate
WebSockets
intermediate

DevOps & Infrastructure

GitHub Actions
advanced
Docker
intermediate
Linux
intermediate
Nginx
intermediate
Past expertise

Mobile — Android

Android SDK
expert
Java
expert
Retrofit
advanced
Kotlin
intermediate

Mobile — React Native

React Native
advanced
JavaScript
advanced
Redux
advanced
Native Modules
intermediate
Firebase
intermediate

Mobile — iOS

Swift
advanced
UIKit
advanced
Objective-C
advanced
CoreData
intermediate

Web Frontend

React.js
advanced
HTML / CSS
advanced
Next.js
advanced
Tailwind CSS
advanced
Tools & environment
ClaudeClaude Code
GitHub CopilotGitHub Copilot
VS
VS Code
CU
Cursor
GitGit
GitHub ActionsGitHub Actions
DockerDocker
VercelVercel
RenderRender
AZ
Azure
PostmanPostman
XcodeXcode
Android StudioAndroid Studio
JiraJira
FigmaFigma
NotionNotion
LinuxLinux
NGINXNginx
ClaudeClaude Code
GitHub CopilotGitHub Copilot
VS
VS Code
CU
Cursor
GitGit
GitHub ActionsGitHub Actions
DockerDocker
VercelVercel
RenderRender
AZ
Azure
PostmanPostman
XcodeXcode
Android StudioAndroid Studio
JiraJira
FigmaFigma
NotionNotion
LinuxLinux
NGINXNginx