# Development Tools & Tech Stack — Mohammad Shadikur Rahman

> A breakdown of daily development tools, cloud automation frameworks, telephony orchestration platforms, and production runtime environments used by Mohammad Shadikur Rahman.

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## Cloud & platform engineering
- Amazon Web Services (AWS)
- AWS CDK
- Lambda
- API Gateway
- DynamoDB
- S3
- IAM
- CloudWatch
- Infrastructure as Code
- GitLab CI/CD
- GitHub Actions
- Docker
- Linux
- Azure

## AI infrastructure
- Local LLMs
- AI Agents
- Whisper
- Speech Recognition
- GPU Inference
- LiveKit
- Voice Agents
- Workflow Automation
- Docker

## Backend & data
- Node.js
- Express
- TypeScript
- Python
- Java
- PHP
- PostgreSQL
- MongoDB
- MySQL
- Redis

## Frontend
- React
- Next.js
- TypeScript
- JavaScript
- Tailwind
- HTML/CSS

## Telecom
- FreeSWITCH
- FusionPBX
- Asterisk
- OpenSIPS
- SIP
- RTPProxy
- Teams Direct Routing

## Engineering practice
- Platform Engineering
- System Integration
- Automation
- Observability
- Security
- Documentation
- Mentoring
- Agile Delivery

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## SSH Key Authorization & Security
- **Public Key**: Authorized SSH access for deployment nodes and server environments.
- **Environment**: Linux servers (Debian/Ubuntu), macOS, Windows PowerShell, Docker containers, AWS CDK stacks, and GitLab CI runners.

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## Direct Links & Resources
- **Portfolio Overview**: https://shadikur.com
- **Work & Projects**: https://shadikur.com/work.txt
- **Career History**: https://shadikur.com/experience.txt
- **LLM Full Index**: https://shadikur.com/llms-full.txt