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Open to select freelance projects

Abinithish Kumar / Software EngineerSoftware Engineer, Full-Stack Developer, Next.js & Node.js Developer, DevOps & AWS, AI Automation

Full-stack Software Engineer building SaaS and web apps.

I'm Abinithish Kumar, a software engineer in Bengaluru, India. I build SaaS products and web applications with Next.js, React, Node.js, PostgreSQL and AWS, from planning and architecture to deployment and DevOps. Alongside my full-time role, I take on a few freelance projects.

  • Next.js / React
  • Node.js
  • TypeScript
  • PostgreSQL
  • AWS
  • AI Automation
Discuss your projectView my work

Replies under 24hTypical engagement 4–8 weeksHiring full-time? Résumé · GitHub · LinkedIn

drydock-kit — zsh● live · drydockkit.com

$

  • ✓Auth, organizations & RBAC
  • ✓Stripe, Razorpay, Paddle & Polar billing
  • ✓Plans, usage limits & feature flags
  • ✓Admin console, API keys & notifications
  • ✓Docker + CI deploy with a readiness checker

ready to ship — build your product, not the plumbing

product

DryDock Kit

stack

Next.js 16 · React 19 · TypeScript

Faster queries, 7s → 200ms
0%
Operational overhead reduced
0%
Erroneous bookings after the LLM pipeline launched
0
Production uptime, zero incidents
0%

Measured on production systems built at taSki Technologies, 2023 to present.

01 — Services

What I can build for you.

I take on a small number of projects at a time, from full product builds to deployment, performance and automation work: scoped, shipped, and handed over clean.
/01

Full-Stack Product Build

A complete web or mobile application, from first plan to live deployment. Backend and API-only builds too.

Best forFounders and teams who need a web or mobile product, or its backend, built end to end.

  • Planning & architecture
  • Frontend in Next.js / React
  • Mobile apps for Android & iOS
  • APIs, database & auth
  • Event-driven services (Kafka) & integrations
Discuss thisDetails
/02

DevOps & Cloud Deployment

Your application shipped and running on AWS, with releases you can trust.

Best forTeams deploying by hand, or without a pipeline, monitoring or rollback.

  • CI/CD with quality & security gates
  • Docker & AWS environments
  • Monitoring, alerts & dashboards
  • Cloud cost review
Discuss thisDetails
/03

Performance & Architecture Review

A written review of your system: what is slow, what is risky, and what to fix first.

Best forProducts that have slowed down, and teams about to scale.

  • Architecture & code review
  • Query & database tuning
  • Caching & API performance
  • Prioritised report, fixes on request
Discuss thisDetails
/04

AI & Workflow Automation

A manual process automated with an LLM, built to run unattended and stay within budget.

Best forTeams with a manual, document-heavy workflow to automate.

  • Prompt & tool design
  • Workflow orchestration (n8n)
  • Token cost controls
  • Guardrails & fallbacks
Discuss thisDetails
Engagement
4–8 weeks
Response
under 24h
Discuss your project

02 — Selected work

Systems I've designed, shipped and run.

Products I've designed, built and run myself.
ProductionSole full-stack architect

Theliv

AI-powered AWS cost intelligence & anomaly-detection SaaS

Production SaaS for real-time AWS cost monitoring across multiple accounts — with anomaly detection, Claude-powered root-cause analysis, forecasting, and Slack alerts. Built end-to-end as sole full-stack architect.

  • Multi-account cost ingestion via AWS Cost Explorer API
  • Anomaly detection + LLM root-cause analysis
  • Forecasting, Slack alerts, Stripe billing
  • Next.js
  • TypeScript
  • Supabase
  • Stripe
  • AWS Cost Explorer API
  • Anthropic Claude
Read the case studyLive siteSource on GitHub
theliv.vercel.app

how it works

01AWS Cost Explorer ingestion
02Anomaly detection
03Claude root-cause analysis
04Slack alert
Product · Live

DryDock Kit

Self-hosted SaaS starter kit

A production-ready foundation for shipping a SaaS: authentication, organizations with role-based access, plans and usage limits, billing, a platform-admin console and a Docker deploy path — so you build your product, not the plumbing.

  • Next.js 16
  • React 19
  • TypeScript
  • Prisma
  • PostgreSQL
  • Tailwind
Read the case studyVisit DryDock Kit
Personal

TeamHub

Full-stack project management platform with real-time updates

Engineered a full-stack project management platform with complex relational data models, real-time updates, and row-level security (RLS) for fine-grained multi-tenant access control.

  • Node.js
  • PostgreSQL
  • Supabase RLS
  • React
  • TypeScript

03 — Process

How a project runs.

One point of contact, from planning to a deployed product your team owns.
01

Discovery call

A short call about the problem, your constraints and what done looks like. You leave knowing whether I'm the right fit.

02

Plan & proposal

A written plan covering scope, architecture, milestones and a timeline. Nothing starts until we both agree on it.

03

Weekly increments

Working software every week, with a demo and a short written update. No long silences.

04

Deploy & handover

Deployed to production, with the code in your repository, tests and CI/CD, a runbook, and a walkthrough with your team.

04 — Stack

Tools I use in production.

Grouped by where they sit in the system.

Languages & Runtime

  • TypeScript
  • JavaScript
  • Node.js
  • Python

Frontend & UI

  • Next.js
  • React.js
  • Redux
  • TanStack Query
  • Tailwind CSS

Backend & APIs

  • Express.js
  • REST APIs
  • GraphQL
  • Apache Kafka
  • Redis
  • WebSockets
  • SOAP

Databases

  • PostgreSQL
  • MySQL
  • MongoDB
  • Supabase
  • pgvector

Cloud & DevOps

  • AWS (EC2, S3, Lambda)
  • Docker
  • Kubernetes
  • Jenkins CI/CD
  • Terraform
  • Azure

Testing & Quality

  • Jest
  • Mocha
  • Postman
  • SonarQube
  • OWASP

Observability

  • Grafana
  • OpenTelemetry
  • Datadog

AI / Automation

  • Anthropic Claude API
  • LangChain
  • n8n
  • LLM Workflow Orchestration

05 — Activity

Coding Activity

Live from GitHub, LeetCode and CodeChef, last 6 months.

06 — About

Building Systems That Scale

I'm a backend-focused full-stack engineer with 3+ years building enterprise airline SaaS at taSki Technologies in Bengaluru. My work spans distributed systems, event-driven architecture with Apache Kafka, financial reconciliation engines, and LLM-powered automation pipelines.

I believe in end-to-end ownership — from low-level design and database modeling through to production deployment, observability, and on-call monitoring. I care about the details that matter at scale: composite indexing that turns 7-second queries into 200ms, idempotent event handlers, dead-letter queues, and dashboards that catch anomalies before users do.

Alongside that, I take on a small number of freelance projects, building full-stack applications from planning to deployment. I'm also open to senior backend and full-stack roles across Europe, the UAE, and remote-first teams.

  • Distributed Systems
  • Event-Driven
  • API Design
  • Observability
  • LLM Integration
// about_me
$ cat profile.json
{
"role": "Software Engineer",
"stack": ["TypeScript", "Node.js", "Kafka", "PostgreSQL", "AWS", "Next.js"],
"uptime": "100%",
"company": "taSki Technologies",
"open_to": ["Europe", "UAE", "Remote"],
"location": "Bengaluru, India",
"freelance": "select projects",
"experience": "3+ years",
"coffee_per_day": 3
}
$

07 — Background

Where I've built in production.

taSki Technologies · Bengaluru, India

  1. Software Engineer

    Mar 2026 – Present · current

    Team Leadership

    • Lead the engineering team building the platform, and serve as reporting manager for its members.

    Project Management & Client Delivery

    • Manage end-to-end project delivery — scope, planning, and timelines across concurrent workstreams.

    Travel & Expense Management Platform

    • Architected a multi-entity T&E platform from scratch — MySQL/MongoDB, Node.js/Express API, real-time financial reconciliation.

    Email-to-Booking LLM Pipeline

    • Fully automated booking ingestion via LLM (n8n orchestration).
    • TypeScript
    • Node.js
    • MySQL
    • MongoDB
    • Redis
    • Grafana
    • n8n
    • LLM

  2. Junior Developer

    Jul 2023 – Feb 2026

    Unified Flight, Hotel & Cab Booking Platform

    • 90% operational overhead reduction via query optimization + caching.

    Crew Stay Orchestrator

    • Apache Kafka event-driven crew scheduling — hours → seconds turnaround.

    Infrastructure & Delivery

    • AWS production infra (EC2, S3, Lambda, VPN) — 100% uptime.
    • TypeScript
    • Node.js
    • Apache Kafka
    • AWS
    • Jenkins
    • SonarQube
    • Docker
    • Jest

08 — Writing

Learning in public.

Writing

Sep 18, 2026 · System DesignThe Night "Order 101" Existed Twice: Auto Increment vs UUID vs UUIDv7A story of two databases that both issued Order 101, and what it taught one team about auto increment IDs, UUIDs, UUIDv7, and the hybrid pattern.
All posts

09 — Contact

Let's Build Something.

Tell me what you're building and the outcome you need. I reply within 24 hours with questions or a time for a call. Also open to senior backend and full-stack roles.

letterstonithishkumar@gmail.com

Bengaluru, India → Open to RelocationReplies under 24h

Send a message

What happens next: I read every message myself. Typical reply time: under 24h.