Hello, I'm Subhransu De.

Senior Software Engineer

I build for what's next, with lessons from what came before.

4+ YearsAWS CertifiedMulti-Tenant SaaSAuthN & AuthZAI Native
View My Projects

My Skills

Languages

  • Java
  • TypeScript
  • JavaScript
  • SQL
  • Python
  • Rust

Backend

  • Spring Boot
  • Spring Security
  • Spring Cloud Gateway
  • Hibernate
  • FastAPI

Identity & access

  • OAuth 2.0
  • OpenID Connect
  • Auth0
  • Microsoft Entra ID
  • OpenFGA

Data & persistence

  • PostgreSQL
  • MongoDB
  • Liquibase
  • QueryDSL

Cloud & infrastructure

  • AWS
  • S3
  • ECS
  • EventBridge
  • SQS
  • Athena
  • PrivateLink
  • Terraform

Frontend

  • Angular
  • TypeScript

Developer tools

  • Docker
  • Jenkins
  • OpenAPI
  • Maven
  • UV
  • Bun

Testing

  • JUnit 5
  • Mockito
  • Testcontainers
  • Selenium
  • Mutation testing

AI & integration

  • Spring AI
  • OpenRouter
  • AWS Bedrock
  • Textract
  • RAG
  • MCP
  • LSP

Featured Projects

Spring AI OpenRouter Starter

Native OpenRouter integration for Spring AI with streaming, tool calling, model fallbacks and cost tracking. Includes Spring Boot auto-configuration, embeddings and image generation.

JavaSpring AISpring BootOpenRouterMaven
GitHubMaven Central

ControlFreak

Native Windows MCP server for AI-driven desktop control with screen capture, mouse and keyboard input, local OCR and virtual desktop navigation.

RustMCPWindows APIOCR
GitHubDocumentation

Rejoin

Terminal session manager for Claude Code, Codex, Cursor, Pi and OpenCode. Discover, search and resume coding-agent sessions from one dashboard, with project-based filtering.

RustCLITUIWindowsLinux
GitHubDownload

FastAPI Template

Opinionated FastAPI boilerplate for async REST APIs with SQLAlchemy, Alembic and CI/CD

PythonFastAPISQLAlchemyPostgreSQLDockerUV
GitHubDocumentation

Featured Posts

Let's work together.
Get in touch.