Sandeep Singh
Sandeep

Sandeep Singh

Technical Lead · Backend & Full-Stack

Skills

Technologies
I work with.

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

expert
advanced
intermediate
Current focus

Backend & APIs

REST API design
expert
Node.js
advanced
Express.js
advanced
Python
advanced
FastAPI
advanced
TypeScript
advanced
NestJS
advanced
GraphQL
intermediate

Databases

PostgreSQL
advanced
SQLite
intermediate
SQL Server
intermediate

AI & LLM

Azure OpenAI
advanced
OpenAI API
advanced
Prompt engineering
intermediate
Retrieval-augmented generation (RAG)
intermediate
Azure AI Search
intermediate
PII redaction (Presidio)
intermediate
MCP servers
intermediate

Cloud & Azure

Azure App Service
intermediate
Azure WebJobs
intermediate
Azure Blob Storage
intermediate

Web

HTML / CSS
advanced
React.js
advanced
Next.js
advanced
Redux
advanced
Tailwind CSS
advanced

Practices & tooling

Git
expert
Agile / Scrum
advanced
Postman
advanced
Jira
advanced
Claude Code
advanced
Performance optimisation
advanced
GitHub Copilot
advanced
GitHub Actions
advanced
Multithreading and concurrency
advanced
CI/CD
intermediate
Cursor
intermediate

Limited exposure

Docker (one container image)
intermediate
Azure Bicep
intermediate
Past expertise

Mobile (earlier career)

Android (Java, Kotlin)
expert
React Native
advanced
iOS (Swift, Objective-C)
advanced
Firebase
intermediate
Tools & environment
ClaudeClaude Code
GitHub CopilotGitHub Copilot
VS
VS Code
CU
Cursor
GitGit
GitHub ActionsGitHub Actions
VercelVercel
RenderRender
AZ
Azure
PostmanPostman
XcodeXcode
Android StudioAndroid Studio
JiraJira
FigmaFigma
NotionNotion
ClaudeClaude Code
GitHub CopilotGitHub Copilot
VS
VS Code
CU
Cursor
GitGit
GitHub ActionsGitHub Actions
VercelVercel
RenderRender
AZ
Azure
PostmanPostman
XcodeXcode
Android StudioAndroid Studio
JiraJira
FigmaFigma
NotionNotion