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Senior full-stack engineer, Chandigarh. Open to senior and staff roles, remote.

Abhishek Thakur

I build payment systems, AI agents and the APIs behind them. Lead Software Engineer at Kinetichex.

See the workRésumé PDF
AT-21 THERMAL

Shipped work

A casting portal, legal document tools, a marketplace, a writing platform and a rebate tool. What I built, and the bugs worth telling.

  1. Jul - Sep 2026Full-stack Engineer

    Sterling Forge

    Upload a 3D model, get a price at today's metal spot, pay a deposit, and watch the piece move through the casting house.

    • 1 ×Next.js
    • 1 ×TypeScript
    • 1 ×PostgreSQL
    • 1 ×Drizzle

    Read the case study

  2. Full-stack Engineer

    LawReach

    A compliance assistant for Australian small businesses, where marking something done has to mean it is done.

    • 1 ×Next.js
    • 1 ×TypeScript
    • 1 ×Supabase
    • 1 ×PostgreSQL

    Read the case study

  3. Full-stack Engineer

    Collections Agent

    An accounts-receivable agent that reads replies to payment chasers, works out what each one means, and drafts the answer for a person to approve.

    • 1 ×Next.js
    • 1 ×TypeScript
    • 1 ×PostgreSQL
    • 1 ×Drizzle

    Read the case study

  4. 2025 - 2026Development Team Lead

    Uplevelit

    A marketplace where professionals sell what they learned on the job, as 1:1 calls, group classes, courses and Q&A.

    • 1 ×TypeScript
    • 1 ×React
    • 1 ×Firebase Functions
    • 1 ×Firebase Hosting

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  5. 2025 - 2026Solo Engineer

    Penbook

    A social platform for writers and readers, from messaging and live sessions to a writing studio with AI tools, built solo.

    • 1 ×Node.js
    • 1 ×NestJS
    • 1 ×MongoDB
    • 1 ×OpenAI

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  6. 2026Solo Engineer

    Rocket Rebates

    Find the rebates you qualify for, get an AI report on each, and file a package an admin has already checked.

    • 1 ×React
    • 1 ×Node.js
    • 1 ×Express
    • 1 ×PostgreSQL

    Read the case study

  7. Lead Engineer

    LeaseYourCar

    California lease specials with the monthly payment and due at signing on every card, and one dealer per enquiry.

    • 1 ×MongoDB
    • 1 ×Express
    • 1 ×React
    • 1 ×Node.js

    Read the case study

  8. Lead Engineer

    aineo

    An AI application for a Swiss AI company, started from the first commit and led through design and build.

    • 1 ×React
    • 1 ×Python
    • 1 ×LangChain
    • 1 ×OpenAI

    Read the case study

What I do

Most of my work sits where a product touches money or paperwork: bookings, payouts, documents that need a human to check them.

  1. InvoiceCustomer copy

    Product Workflows

    Bookings, writing tools and rebate applications. I build the APIs and screens that carry a task from start to finish.

  2. InvoiceOffice copy

    Payments

    Stripe purchases, refunds and provider payouts, including the webhooks that update the application after payment.

  3. InvoiceFile copy

    AI Features

    Claude tool-calling agents behind human approval queues, RAG search over a user's own documents, and OpenAI reports and writing tools.

The stack

languages
TypeScript, JavaScript, Python
frontend
React, Next.js, Redux, Tailwind CSS
backend
Node.js, NestJS, Express
data
PostgreSQL, MongoDB, Firebase, ETL
cloud
GCP, Docker, AWS RDS, AWS S3, Cloudflare, Vercel
delivery
GitHub Actions, Bitbucket Pipelines
testing
Vitest, Playwright, React Testing Library, pytest
payments
Stripe, Subscriptions, Payouts, Refunds, Webhooks
ai
Claude API, OpenAI API, Tool-calling agents, RAG, pgvector, LangChain
integrations
Twilio Video, Bunny Stream, SendGrid, Firebase Auth, Shopify, Prebid.js
search
SEO, AEO, GEO, Core Web Vitals, GA4
architecture
Multi-tenant applications, Role-based access, REST APIs, Microservices

Where I've worked

  1. May 2026 - Present

    Lead Software Engineer

    Kinetichex

    Lead full-stack development across client apps for legal tech, accounts-receivable automation and manufacturing quoting. Built the Sterling Forge casting portal end to end, from a 3D model viewer and production board to Stripe payments and CI, and features across the LawReach compliance platform. Built a Claude tool-calling agent that triages replies to payment reminders behind a human approval queue, RAG search over legal documents, and enterprise sign-in through Microsoft Entra ID. Run SEO, AEO and GEO for a Bruges law firm and boutique hotel group, from Core Web Vitals and crawler prerendering to page redesigns and GA4 tracking.

  2. Feb 2024 - Apr 2026

    Development Team Lead

    Bizdesire

    Led a 5-engineer team building Uplevelit, with bookings, live video, idempotent Stripe billing and creator payouts. Led a team building an ad platform with Prebid.js real-time bidding, built as payment, bidding, auth and reporting microservices. Built Penbook and Rocket Rebates solo. Ran client scoping, estimates, code review, mentoring and technical interviews.

  3. Oct 2022 - Dec 2023

    Associate React & Node.js Developer

    Appcore Labs

    Built React and Next.js interfaces for SaaS and e-commerce products, including cart, order and product flows. Contributed to Node.js APIs and integrated Firebase Auth.

  4. Oct 2021 - Sept 2022

    Frontend Developer (React)

    Fyntune Solutions

    Built form builders and React interfaces for term, cyber and travel insurance. Adapted shared components to client branding and configuration, and managed staging and production releases.

Say hi

Open to remote senior and staff full-stack roles. Tell me what your team is building and where you need help.

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