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Abhinav Tiwary's tech stack

The tech stack Abhinav Tiwary works with: Linux, Bash, AWS, Google Cloud, Docker, Kubernetes, PostgreSQL, Node.js, and React.

On call, in practice

Shipping is half the job. The other half is keeping it up: watching the dashboards, reading the logs, and fixing what breaks.

  • Linux first

    At home on the command line: services, logs, permissions, cron jobs, and Bash scripts that automate the boring parts.

  • Monitor and support

    At Paytm I work on technical operations and system monitoring, and support the teams that depend on those systems.

  • Ship it reliably

    Containers, CI pipelines, and cloud deploys: Docker, Kubernetes, and Jenkins practice, with apps running on AWS.

abhinav@prod-01: ~$ systemctl status nginx● nginx.service - active (running)$ uptimeup 42 days, load average: 0.21 0.18$ df -h //dev/nvme0n1p1 40G 18G 45% /$ journalctl -u app -f-- following logs --web-01web-02db-01cache-01cpu · web-01All systems operationalalert at 80%200 GET /health 11ms200 GET /api/users 48ms304 GET /static/app 3ms200 POST /login 96msWARN db retry 1/3200 GET /api/orders 52ms200 GET /health 12ms201 POST /tickets 74ms200 GET /health 11ms200 GET /api/users 48ms304 GET /static/app 3ms200 POST /login 96msWARN db retry 1/3200 GET /api/orders 52ms200 GET /health 12ms201 POST /tickets 74ms

From the server up

I can keep a Linux box healthy, deploy to the cloud, and build the app that runs on it. Here is what I use at each layer, and where I've used it for real.

  1. Ops & support

    Keeping production healthy

    • Linux
    • Bash
    • Git
    • Postman
    • System monitoring
    • Troubleshooting
    • Incident triage
    • DNS, HTTP, TCP/IP

    Used in

    Paytm (TechOps), devops_learn

    Layer 1 of 6

  2. Cloud & infra

    Where it runs and ships from

    • AWS
    • Google Cloud
    • Docker
    • Kubernetes
    • Jenkins
    • Vercel
    • GitHub

    Used in

    CampusSetu, DevOps-Practice, devops_learn

    Layer 2 of 6

  3. Data

    Where state lives

    • PostgreSQL
    • MongoDB
    • MySQL
    • Redis
    • Firebase

    Used in

    CampusSetu, Artha Social

    Layer 3 of 6

  4. Backend

    APIs, auth, real time

    • Node.js
    • Express
    • Prisma
    • JWT
    • WebSockets
    • Python

    Used in

    CampusSetu, Unessa Foundation, Bot Detection System

    Layer 4 of 6

  5. Frontend

    What the user touches

    • React
    • Next.js
    • TypeScript
    • JavaScript
    • Tailwind CSS
    • HTML5
    • CSS

    Used in

    LifeHerba, SkyCodeHub, CampusSetu, Artha Social

    Layer 5 of 6

  6. AI

    LLMs and computer vision

    • OpenAI
    • Claude
    • Gemini
    • OpenCV

    Used in

    av9Assist

    Layer 6 of 6

Underneath it all250+ DSA problems solved

  • Data structures
  • Algorithms
  • System design
  • OOP
  • DBMS
  • Operating systems
  • Computer networks
  • Java

Let's build something.

Hiring for a cloud, Linux, support, or full-stack role, or have a product that needs building? Email is the fastest way to reach me.

abhinavv8975@gmail.com