# Vishal Kumar

> Platform and infrastructure engineer with ~3 years of experience building reliable, production-grade systems at scale. Core expertise in distributed systems, workflow orchestration, and multi-tenant SaaS infrastructure. AI-native developer who uses Claude Code heavily as a daily driver.

## About

- [Portfolio](https://vishalx360.dev): Full portfolio with experience and projects
- [Resume](https://vishalx360.dev/resume.pdf): Detailed resume in PDF format

## Experience

- [Atlan - Software Engineer | Platform](https://vishalx360.dev/experience): Built Blackbird, a declarative config state management system in Go with Temporal-powered drift detection across 800-1000 tenant clusters (20-30 services adopted, config-drift P0 outages eliminated). Migrated 600+ production tenants to CloudNativePG with zero data loss and zero downtime. Productionized the Temporal workflow engine. On-call for core services. Built a Claude Code plugin for incident RCA. Led Query Intelligence cost reduction. 2-3 months of work compressed to 2 weeks via AI-native development. Go, PostgreSQL, CloudNativePG, Temporal, Redis, Kong, Kubernetes, Helm, OpenTelemetry, Claude Code
- [OpeninApp - Backend Engineer](https://vishalx360.dev/experience): Built an AWS log aggregator ETL pipeline (Kinesis Firehose to S3 Parquet to Glue to Athena) that eliminated reporting latency and reduced MySQL OLTP costs for a system processing 1-5 million daily hits. Maintained the core redirection system serving millions of daily hits. Node.js, MySQL, Redis, RabbitMQ, Kafka, AWS (Kinesis, S3, Glue, Athena), Trino, MinIO
- [Relecture - Founding Software Engineer](https://vishalx360.dev/experience): First and sole engineer for two years. Built the entire EdTech product from scratch (backend, database, deployment, CI/CD, full-stack). Cut AWS infrastructure costs by 80% via serverless migration. Hired 2 engineers, team grew from 1 to 3. Node.js, React, AWS Serverless, Stripe, CI/CD

## Projects

- [Itelcotech](https://itelcotech.com): Production e-learning platform for telecom education. Next.js 14, tRPC, Prisma/Neon, Sanity CMS, dual-currency Stripe, and an on-demand AWS EC2 cloud-labs system for Free5GC (5G core) exercises.
- [Vacation Responder](https://github.com/vishalx360/vacation-responder): Node.js CLI that monitors Gmail and auto-responds to first-time threads.
- [Taskflow](https://taskflow.space): Collaborative project management app with workspaces, drag-drop boards, and team roles.
- [Inform](https://inform-app.vercel.app/signin): Web-based form builder with multiple validation types.
- [MakeItSafe (Hackathon Winner)](https://github.com/vishalx360/makeItSafe): AI moderation Discord bot using Perspective API and NSFW.js.

## Skills

**Backend Systems**: Go, TypeScript/Node.js, Python, REST APIs, Microservices, Express, Fastify, tRPC, gRPC
**Distributed Systems**: Temporal, Kafka, RabbitMQ, Kinesis, Dapr, Asynchronous Processing, Multi-tenant Architecture, Idempotent Operations
**Infrastructure & Cloud**: Kubernetes, Docker, Helm, ArgoCD, CI/CD, GitHub Actions, AWS (Lambda, S3, Kinesis, Athena, Glue), Linux
**Observability & AI Engineering**: OpenTelemetry, Grafana, Distributed Tracing, Metrics, Alerting, Production Incident Management, Claude Code, AI Agent Development, AI Workflow Automation
**Databases**: PostgreSQL, CloudNativePG, Redis, MySQL, ClickHouse, S3/MinIO

## Contact

- [Email](mailto:vishalx360@gmail.com)
- [GitHub](https://github.com/vishalx360)
- [LinkedIn](https://www.linkedin.com/in/vishalx360)

## Status

- **Open to work**: Yes
- **Experience**: ~3 years
- **Looking for**: Software Engineer, Backend Engineer, Platform Engineer, Infrastructure Engineer
- **Preferred**: remote
- **Location**: Bengaluru, India