// dipto karmakar

available for senior / lead roles

Dipto Karmakar

Senior Frontend Engineer

I architect interfaces and systems that hold up under real traffic — 10+ years across React, TypeScript, and Next.js, now building deeper into full-stack and system engineering.

Resume Email GitHub

~/dipto — zsh

10+

years shipping

react · typescript · next.js

real-time

payment & data systems

websockets · low-latency UIs

design

systems at scale

figma → tokens · a11y · docs

OSS

backendctl

open-source backend cli

// selected work

Systems I've shipped

A few representative builds. Real traffic, real constraints, measured outcomes.

Spendrift

Full-stack: TanStack Start + FastAPI + PostgreSQL · live on Vercel

Full-stack personal finance tracker with per-currency workspace isolation, expense categorisation, budget tracking, and multi-year reporting. TanStack Start frontend paired with a FastAPI + PostgreSQL backend — live on Vercel.

TypeScript
React
TanStack Start
TailwindCSS
TanStack Query
FastAPI
SQLModel
PostgreSQL
Alembic
Docker
Sentry
Vitest

backendctl

Published on PyPI · installable via uvx backendctl new

OSS CLI that scaffolds production-ready Python backends — FastAPI, Flask, or Django — with JWT auth, database, migrations, tests, and linting generated in a single interactive command. Published on PyPI.

Python
Typer
Rich
FastAPI
Flask
Django
PostgreSQL
MongoDB
Alembic
Docker
pytest
ruff
mypy

diptokarmakar.me

100/100 Lighthouse desktop · Supabase CMS · Streaming RSC

This portfolio — Next.js 16 App Router, Tailwind v4 CSS-first config, and Supabase as a live CMS. Streaming React Server Components with Suspense skeletons, CSS-only motion, and 100/100 Lighthouse scores desktop.

Next.js
TypeScript
React
Tailwind v4
Supabase
shadcn
GitHub Actions

// about

Dipto Karmakar

Dhaka, Bangladesh · GMT+6

10+ yrs shipping

A systems thinker who likes to ship real things.

Ten-plus years building interfaces for real-world products — real-time checkout flows, B2B dashboards, and design systems adopted across teams. I care about the parts that are easy to ignore: latency, accessibility, type safety, and the developer experience that keeps a team fast. Lately I'm pushing deeper into full-stack engineering, treating every layer of the stack as a system to design around.

Frontend

React
Next.js
TypeScript
Tailwind

Full-stack

Node.js
FastAPI
Django
PostgreSQL

Real-time

WebSockets
GraphQL
Low-latency UIs

Craft

Design systems
Performance
Accessibility
Testing

experience

Independent Software Engineer · Self-Employed
May 2025 - Present
independent · remote · Dhaka, Bangladesh
- Built and maintain backendctl, an open-source CLI that scaffolds production-ready Python backends — published on PyPI.
- Shipped Spendrift — a full-stack personal finance tracker with per-currency workspace isolation, built on TanStack Start, FastAPI, SQLModel, and PostgreSQL; live on Vercel.
- Developing a note-taking application using FastAPI to deepen backend architecture, authentication, and API design skills.
- Built a job-aggregation and automation toolkit to streamline sourcing of opportunities across multiple platforms.
- Strengthened full-stack capabilities through applied learning in Django, FastAPI, Next.js, and GSAP.
- Following a structured AI engineering roadmap covering LLMs, agentic systems, and applied AI tooling.
- FastAPI
- Python
- PostgreSQL
- TanStack Start
- React
- TypeScript
- SQLModel
- Django
- Node.js
- Docker
Senior Frontend Engineer · Myze
Mar 2025 - Apr 2025
contract · remote · Emmerich, Germany
- Led development of a real-time tablet checkout interface in React and TypeScript with multilingual support and integrated SumUp payments.
- Engineered WebSocket-based systems for device pairing and live payment tracking, improving transparency and reducing customer wait times.
- Built reusable, scalable UI components — tabbed product views, color picker inputs, and GraphQL-powered data tables.
- Collaborated with backend engineers to define API contracts, ensuring reliable real-time state synchronization in production.
- React
- TypeScript
- GraphQL
- WebSockets
- SumUp
Senior Frontend Engineer · ProptechCore
Oct 2022 - Feb 2025
full-time · remote · Stockholm, Sweden
- Led transformation of Figma design systems into production-grade React component libraries, streamlining UI development across teams.
- Delivered high-fidelity, accessible B2B SaaS interfaces across complex user flows with strong design consistency and performance.
- Designed and maintained a centralized component library enabling consistent UI and faster iteration across teams.
- Owned end-to-end user onboarding and invitation flows, from design through delivery.
- Built real-time office energy monitoring dashboards with WebSocket data pipelines, balancing UX clarity with data accuracy.
- Provided frontend architecture decisions, estimations, and cross-team technical feedback autonomously in a remote-first environment.
- React
- TypeScript
- Next.js
- WebSockets
- Design Systems
- GraphQL
Senior Frontend Engineer · Kiwibot
Aug 2021 - May 2022
full-time · remote · Medellín, Colombia
- Led refactor of a legacy console application into a scalable micro-frontend architecture using Nx, improving maintainability and enabling team growth.
- Applied a complete brand and UI theme across the application without dedicated design support, ensuring visual consistency.
- Implemented a real-time task notification system using WebSockets, improving supervisor visibility and response time.
- React
- TypeScript
- Nx
- WebSockets
- Micro-frontends
Full Stack Developer · YouMeWho
Feb 2021 - May 2021
contract · remote · Palo Alto, California, USA
- Built a Chrome extension to auto-scrape and import merchandise, improving client inventory management speed.
- Researched and proposed Facebook API integrations for real-time social media marketing features.
- JavaScript
- Chrome Extensions
- REST APIs
- Facebook API
Full Stack Developer · Chosenmasters
Sep 2020 - Dec 2020
contract · remote · Vancouver, Canada
- Developed a music streaming platform supporting track uploads, merchandise sales, and social features (favorites, follows).
- Delivered e-commerce and audio streaming functionality enabling artist monetization and user growth.
- React
- Node.js
- PostgreSQL
- REST APIs
Back End Developer · Anansi Skills
Dec 2019 - Jan 2020
contract · remote · Chapel Hill, NC, USA
- Designed a social-auth enabled, role-based REST API with full Swagger documentation.
- Integrated and deployed a Keras-based machine learning model on GCP for educational analytics.
- Python
- Django
- REST APIs
- GCP
- Keras
Technical Support Engineer · Microverse
Jun 2019 - Aug 2019
full-time · remote · San Francisco Bay Area, USA
- Led 400+ code reviews in Ruby, Rails, JavaScript, and React for 50+ students, accelerating learning through tailored 1:1 guidance.
- Mentored 20+ students to graduation, improving retention and technical confidence.
- Managed 10+ part-time code reviewers, maintaining high standards and consistency across the review process.
- Ruby
- Rails
- React
- JavaScript
Technical Support Engineer · Microverse
Feb 2019 - May 2019
part-time · remote · San Francisco Bay Area, USA
- Completed 100+ code reviews in HTML, CSS, Ruby, Databases, and Ruby on Rails for students at various stages.
- Ruby
- Rails
- HTML
- CSS
- SQL
Software Developer · Unipolar Automation Technologies
Jan 2016 - Sep 2017
full-time · onsite · Dhaka, Bangladesh
- Built a desktop application for real-time monitoring of 100 color packaging machines simultaneously.
- Developed a desktop application with millisecond-level real-time data plotting for gas turbine monitoring at a power plant, enabling proactive maintenance.
- Built a product quantity slip generator that sent data directly to conveyor machines for automated counting during van loading, streamlining shipment throughput.
- SQL
- Desktop Development

// contact

available for senior / lead roles

Let's build something
worth shipping.

Open to senior and lead engineering roles, and to interesting full-stack or AI problems. Currently remote; open to relocation for the right opportunity. The fastest way to reach me is email — I read everything.

diptokmk47@gmail.com

Dhaka, Bangladesh · GMT+6 · remote · open to relocation

Dipto Karmakar

Systems I've shipped

Spendrift

backendctl

diptokarmakar.me

A systems thinker who likes to ship real things.

Independent Software Engineer · Self-Employed

Senior Frontend Engineer · Myze

Senior Frontend Engineer · ProptechCore

Senior Frontend Engineer · Kiwibot

Full Stack Developer · YouMeWho

Full Stack Developer · Chosenmasters

Back End Developer · Anansi Skills

Technical Support Engineer · Microverse

Technical Support Engineer · Microverse

Software Developer · Unipolar Automation Technologies

Let's build somethingworth shipping.

Dipto Karmakar

Systems I've shipped

Spendrift

backendctl

diptokarmakar.me

A systems thinker who likes to ship real things.

Independent Software Engineer · Self-Employed

Senior Frontend Engineer · Myze

Senior Frontend Engineer · ProptechCore

Senior Frontend Engineer · Kiwibot

Full Stack Developer · YouMeWho

Full Stack Developer · Chosenmasters

Back End Developer · Anansi Skills

Technical Support Engineer · Microverse

Technical Support Engineer · Microverse

Software Developer · Unipolar Automation Technologies

Let's build something
worth shipping.