# Skills

> I mostly use Node.js and TypeScript on AWS. For services I use NestJS. For data I use PostgreSQL and Redis. For messages I use Kafka and MQTT. Each skill below links to the projects where I used it. I do not show levels or percentages, because a project says more than a number.

- URL: https://uttamgelot.com/skills/
- Updated: 2026-10-17
- Author: Uttam Gelot

## Languages

| Skill | Used in |
|---|---|
| TypeScript | [Warehouse integration platform](https://uttamgelot.com/work/warehouse-integration/), [Automotive marketplace and finance platform](https://uttamgelot.com/work/automotive-marketplace/), [Smart home IoT backend](https://uttamgelot.com/work/smart-home-iot/), [Payo](https://uttamgelot.com/open-source/payo/) |
| JavaScript | [3D virtual art museum](https://uttamgelot.com/work/virtual-art-museum/) |
| Python |  |

## Backend

| Skill | Used in |
|---|---|
| Node.js | [Warehouse integration platform](https://uttamgelot.com/work/warehouse-integration/), [Automotive marketplace and finance platform](https://uttamgelot.com/work/automotive-marketplace/), [Smart home IoT backend](https://uttamgelot.com/work/smart-home-iot/) |
| NestJS | [Warehouse integration platform](https://uttamgelot.com/work/warehouse-integration/) |
| Express |  |
| AdonisJS | [Smart home IoT backend](https://uttamgelot.com/work/smart-home-iot/) |
| Django |  |
| REST | [Automotive marketplace and finance platform](https://uttamgelot.com/work/automotive-marketplace/) |
| GraphQL | [Warehouse integration platform](https://uttamgelot.com/work/warehouse-integration/) |
| Microservices | [Warehouse integration platform](https://uttamgelot.com/work/warehouse-integration/) |
| WebSockets |  |

## Messaging

| Skill | Used in |
|---|---|
| Kafka | [Warehouse integration platform](https://uttamgelot.com/work/warehouse-integration/) |
| MQTT | [Smart home IoT backend](https://uttamgelot.com/work/smart-home-iot/) |

## Data

| Skill | Used in |
|---|---|
| PostgreSQL | [Warehouse integration platform](https://uttamgelot.com/work/warehouse-integration/), [Automotive marketplace and finance platform](https://uttamgelot.com/work/automotive-marketplace/) |
| MySQL | [Smart home IoT backend](https://uttamgelot.com/work/smart-home-iot/) |
| MongoDB |  |
| Redis | [Automotive marketplace and finance platform](https://uttamgelot.com/work/automotive-marketplace/) |
| Elasticsearch | [Warehouse integration platform](https://uttamgelot.com/work/warehouse-integration/) |
| TypeORM | [Automotive marketplace and finance platform](https://uttamgelot.com/work/automotive-marketplace/) |

## AWS

| Skill | Used in |
|---|---|
| AWS | [Warehouse integration platform](https://uttamgelot.com/work/warehouse-integration/), [Automotive marketplace and finance platform](https://uttamgelot.com/work/automotive-marketplace/), [Smart home IoT backend](https://uttamgelot.com/work/smart-home-iot/) |
| ECS |  |
| ECR |  |
| Lambda |  |
| CloudFormation |  |
| CDK |  |
| CloudFront |  |
| Route 53 |  |
| AppConfig |  |
| Textract |  |
| CloudWatch | [Warehouse integration platform](https://uttamgelot.com/work/warehouse-integration/) |

## DevOps

| Skill | Used in |
|---|---|
| Docker |  |
| Kubernetes |  |
| Nginx | [Automotive marketplace and finance platform](https://uttamgelot.com/work/automotive-marketplace/) |
| PM2 | [Automotive marketplace and finance platform](https://uttamgelot.com/work/automotive-marketplace/) |
| Jenkins | [Automotive marketplace and finance platform](https://uttamgelot.com/work/automotive-marketplace/) |
| GitHub Actions |  |
| CI/CD | [Automotive marketplace and finance platform](https://uttamgelot.com/work/automotive-marketplace/) |
| Git |  |

## Observability

| Skill | Used in |
|---|---|
| Sentry | [Warehouse integration platform](https://uttamgelot.com/work/warehouse-integration/) |
| Elastic APM | [Warehouse integration platform](https://uttamgelot.com/work/warehouse-integration/) |
| Grafana |  |

## Quality

| Skill | Used in |
|---|---|
| Unit tests |  |
| Contract tests |  |
| Swagger / OpenAPI | [Automotive marketplace and finance platform](https://uttamgelot.com/work/automotive-marketplace/) |
| Feature flags (Unleash) | [Warehouse integration platform](https://uttamgelot.com/work/warehouse-integration/) |

## Frontend

| Skill | Used in |
|---|---|
| React |  |
| Next.js |  |
| Three.js | [3D virtual art museum](https://uttamgelot.com/work/virtual-art-museum/) |
| Webflow | [3D virtual art museum](https://uttamgelot.com/work/virtual-art-museum/) |
| Electron |  |

## Integrations

| Skill | Used in |
|---|---|
| Shopify | [Warehouse integration platform](https://uttamgelot.com/work/warehouse-integration/) |
| WooCommerce | [Warehouse integration platform](https://uttamgelot.com/work/warehouse-integration/) |
| Billbee | [Warehouse integration platform](https://uttamgelot.com/work/warehouse-integration/) |
| DHL | [Warehouse integration platform](https://uttamgelot.com/work/warehouse-integration/) |
| JTL | [Warehouse integration platform](https://uttamgelot.com/work/warehouse-integration/) |
| Stripe | [Automotive marketplace and finance platform](https://uttamgelot.com/work/automotive-marketplace/) |
| Twilio | [Automotive marketplace and finance platform](https://uttamgelot.com/work/automotive-marketplace/) |
| DocuSign |  |

## Tools I build with

| Skill | Used in |
|---|---|
| Bun | [Payo](https://uttamgelot.com/open-source/payo/) |
| Cursor |  |
| Claude Code | [Payo](https://uttamgelot.com/open-source/payo/) |