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Not for hire — for outcomes. A product partner with 5+ years building in high-stakes environments: banking, government, healthcare, supply chain, and e-commerce. I take products from spec to production without hand-holding.

Arun Kumar — Flutter & AI Engineer

Arun Kumar

Flutter & AI Engineer

20+

Projects Shipped

50K+

Daily Users

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0+

Projects Shipped

0K+

Daily Active Users

0Cr+

Transactions Processed

0+

Years Experience

0+

Happy Clients

About
Arun Kumar at work

Arun Kumar

Full-Stack Dev & AI Engineer · Bengaluru

When you hire me, you get someone who's done this before — at scale

I have 5+ years of professional experience — from building AI chatbots at Celebal to supply-chain apps at Collabrix Inc., to two years deep inside AU Small Finance Bank. At AU I owned the full product cycle on four major internal platforms: AU HUB (50K+ daily active users, 50+ micro-apps), Sampark (task & lead management for RMs with Exotel calling integration), Drishti (3D compliance dashboard for HODs & SPOCs), and Niyantaran. All production, all regulated, all zero-downtime. That's where I earned the Star Award.

Beyond product work, I've designed and built 10+ business portfolios for clients across industries — landing pages, multi-section sites with booking flows, contact forms, and brand storytelling — each crafted to convert visitors into leads.

I don't need hand-holding. I ask the right questions upfront, flag risks early, and deliver something that works in production — not just in a demo. Whether it's a startup's first app, a business portfolio, or a complex enterprise integration, I bring the same discipline. Currently deepening that with an M.Tech in AI & Data Science at IIT Patna.

Off the clock: music production, cooking experiments, and losing sleep over chess puzzles.

5+

Years Experience

20+

Projects Shipped

50K+

Daily Users

15+

Happy Clients

Journey

2015 – 2019

B.Tech — Computer Science

GNIOT, Greater Noida

2019 – 2021

Freelancer

Web & App Projects · Independent

Sep 2021 – Apr 2023

Associate Dev → React Developer

Celebal Technology · Schrocken Inc.

Jun 2023 – Aug 2025

Flutter Developer — AU Small Finance Bank

AU HUB · Sampark · Drishti · Niyantaran

Apr 2025 – Present

Independent Consultant

Flutter & AI · 15+ clients · Global

Pursuing

M.Tech — AI & Data Science

IIT Patna

How I work

Client first, code second

Every project starts with a business problem, not a tech stack. I figure out what success looks like for you before writing a single line.

Async by default

Weekly Loom updates, shared task boards, Figma previews before builds. You always know where things stand.

Own it end-to-end

From architecture to App Store submission. No handoffs, no "that's not my part". I carry it to the finish line.

Services

What I Build

01

Mobile Apps

Flutter apps that scale to 50K+ daily users.

AU HUB · Sampark · Vahaan Bazar

FlutterDartFirebaseREST APIs
02

Web & Dashboards

Production portals running at enterprise scale.

Drishti · Niyantaran · Schrocken

ReactNext.jsNode.jsPostgreSQL
03

AI & Automation

Pipelines that eliminate hours of manual work.

LangChain Agents · n8n Workflows

LangChainn8nOpenAIPython
Tech Stack

Core Stack

Technologies I work with daily — battle-tested in production environments.

Flutter icon

Flutter

React JS icon

React JS

Next.js icon

Next.js

TypeScript icon

TypeScript

Node JS icon

Node JS

Tailwind CSS icon

Tailwind CSS

Dialogflow icon

Dialogflow

Flutter icon

Flutter

React JS icon

React JS

Next.js icon

Next.js

TypeScript icon

TypeScript

Node JS icon

Node JS

Tailwind CSS icon

Tailwind CSS

Dialogflow icon

Dialogflow

Figma icon

Figma

Git icon

Git

JavaScript icon

JavaScript

Redux Toolkit icon

Redux Toolkit

Material UI icon

Material UI

SQL icon

SQL

Ruby On Rails icon

Ruby On Rails

Figma icon

Figma

Git icon

Git

JavaScript icon

JavaScript

Redux Toolkit icon

Redux Toolkit

Material UI icon

Material UI

SQL icon

SQL

Ruby On Rails icon

Ruby On Rails

Currently Exploring

LangGraphLangChainn8nLlamaIndexOllamaAI AgentsMachine Learning
Experience

My Professional Journey

Full-Stack Website & Mobile App Developer

Independent Consultant
April 2025 - Present

Building end-to-end products for clients across fintech, government, and e-commerce — from idea to production.

  • Developing full-stack websites and cross-platform mobile applications for Android and iOS using modern technologies.
  • Delivering end-to-end solutions including UI/UX design, frontend development, backend integration, and deployment.
AU Small Finance Bank logo

Flutter Developer | Front-end Developer

AU Small Finance Bank
Jun 2023 - Aug 2025

Built the communication and compliance backbone of AU HUB — a platform used by 10,000+ employees across 50+ micro-apps. Star Award recipient.

  • Developed and maintained the AU HUB mobile application using Flutter, integrating 50+ micro-apps.
  • Optimized and automated multiple business verticals, reducing dependencies and improving workflow efficiency.
Meghalaya Government | Tura Municipal Board logo

Freelance Web Developer

Meghalaya Government | Tura Municipal Board
Dec 2023 - Present

Digitized the municipal portal for 50,000+ citizens — multi-level approval workflows, SBI ePay integration, 95% faster service delivery.

  • Developed the official website for the Tura Municipal Board using Flutter for a dynamic and scalable experience.
  • Designed and implemented a structured approval workflow requiring two levels of verification for submitted forms.
Schrocken Inc. logo

React.js Developer

Schrocken Inc.
May 2022 - April 2023

Delivered supply-chain web applications with React + Redux; improved data visibility and cross-team collaboration for pharma clients.

  • Developed and maintained web applications using React.js and Material UI, enhancing user engagement.
  • Implemented Redux for state management, improving application efficiency and scalability.
Celebal Technology logo

Associate NodeJS Developer

Celebal Technology
Sep 2021 - May 2022

Built AI-powered chatbots on Dialogflow and Node.js — first exposure to conversational AI that shaped the current specialisation.

  • Developed and maintained AI-powered chatbots using Node.js and Google Dialogflow.
  • Integrated third-party APIs for enhanced chatbot functionalities and real-time data processing.

Academic Journey

Indian Institute of Technology (IIT) Patna logo

M.Tech

Indian Institute of Technology (IIT) Patna

Artificial Intelligence and Data Science Engineering (AI & DSE)
2026 - 2028
Currently Pursuing
Greater Noida Institute Of Technology logo

B.Tech

Greater Noida Institute Of Technology

Computer Science Engineering
May 2015 - May 2019
Completed
Jawahar Navodaya Vidyalaya logo

12th — Senior Secondary

Jawahar Navodaya Vidyalaya

Science | Rangareddy, Telangana
2014 - 2015
Completed
Jawahar Navodaya Vidyalaya logo

10th — Secondary

Jawahar Navodaya Vidyalaya

Supaul, Bihar
2012 - 2013
Completed
Educational Foundation Built

Work That Ships

Real projects. Real clients. Measurable outcomes.

Vahaan Bazar - Heavy Vehicle Marketplace
Get it on Google Play
Download on App Store

Vahaan Bazar - Heavy Vehicle Marketplace

Built a comprehensive heavy vehicle marketplace app serving 10,000+ users with integrated auction system, buy/sell platform, spare parts catalog, insurance & finance services - generating ₹50Cr+ in transactions and revolutionizing the heavy vehicle industry.

FlutterDartFirebasePayment Gateway
AU HUB | Zoom Call Feature and Recording
Get it on Google Play
Download on App Store

AU HUB | Zoom Call Feature and Recording

Transformed AU HUB into a complete communication hub with seamless Zoom integration, enabling 10,000+ employees to conduct professional video calls, record meetings, and multitask with PiP mode - boosting productivity by 40%.

FlutterGetXZoom SDKPiP Mode
Relationship Manager App (Sampark)
Get it on Google Play
Download on App Store

Relationship Manager App (Sampark)

Empowered 500+ Relationship Managers with a powerful mobile solution that streamlines lead management, automates call logging, and boosts field productivity by 60% - turning every customer interaction into a revenue opportunity.

FlutterGetXExotelCall Recording
FincareOne | Branch Class Change
Get it on Google Play
Download on App Store

FincareOne | Branch Class Change

⚡ Automated 30-40% of IT service tickets with a self-service module that empowers employees to manage branch transfers while providing managers with intuitive swipe-to-approve workflows - reducing approval time by 80%.

FlutterGetXWorkflow AutomationHRMS Integration

Clients & Companies

Trusted by businesses,
backed by results.

From government portals to consumer apps — every brand here is a real engagement with real delivery.

Direct Clients
Strenva Technologies

Strenva Technologies

Web Platform · 2024

Vahaan Bazar

Vahaan Bazar

Mobile + Web · 2025

Tura Municipal Board

Tura Municipal Board

Gov Portal · 2024

The Pets Garden

The Pets Garden

Pet E-Commerce · 2025

LN

Learn with Nibesh

EdTech · LMS · 2025

Companies I've Worked At
AU Small Finance Bank

AU Small Finance Bank

FinTech · Banking · 2023 – 2025

Schrocken Inc.

Schrocken Inc.

Supply Chain SaaS · 2022 – 2023

Celebal Technology

Celebal Technology

AI & Tech Services · 2021 – 2022

Testimonials

What Clients Say

Government Portal

Tura Municipal Board Website

Arun delivered an exceptional website for the Tura Municipal Board that completely transformed our digital presence. The multi-level approval system and SBI ePay integration work flawlessly, making our administrative processes 95% more efficient. Citizens can now submit forms online and track their status in real-time. The platform handles over 50,000 citizens seamlessly, and we have seen a dramatic reduction in manual paperwork. Arun's technical expertise and understanding of government requirements made this project a tremendous success.

Serving 50,000+ citizens with 95% faster service delivery
D

Dona Momin

Tura Municipal Board

E-commerce Platform

Vahaan Bazar Platform

Working with Arun on our Vahaan Bazar platform has been an outstanding experience. His expertise in Flutter development and understanding of complex business requirements helped us create a robust and scalable solution. The application performance exceeded our expectations, and his attention to detail in implementing user-friendly features made our platform stand out in the market. We are extremely satisfied with the quality of work and professionalism. Available on both Android and iOS app stores.

Enhanced user experience with 40% improved performance
S

Santhosh

Vahaan Bazar Private Limited

Web Application

Strenva Tech Partner

Arun's contribution to our Strenva platform development was exceptional. His deep knowledge of modern web technologies and ability to deliver scalable solutions within tight deadlines made him an invaluable team member. The website architecture he designed has been serving our clients reliably, and the clean, maintainable code structure continues to support our growing business needs.

Scalable architecture supporting 1000+ concurrent users
S

Strenva Team

Strenva Technologies

Pet E-Commerce

The Pets Garden Platform

Arun built our pet e-commerce platform from scratch and it exceeded every expectation. The website is clean, fast, and easy to navigate — our customers love it. He understood our vision right away and translated it into a fully functional online store. Product listings, filters, and the checkout experience all work seamlessly. The platform went live on schedule and we started receiving orders immediately. Highly recommend Arun for anyone looking to build a professional e-commerce website.

Live e-commerce platform generating orders from day one
T

The Pets Garden Team

The Pets Garden

EdTech · Online Learning

Learn with Nibesh LMS

Arun delivered my online teaching platform exactly the way I envisioned it. He built a clean, responsive website where I can host my courses and students can easily enroll and learn. The whole process was smooth — he was responsive, understood my requirements without long back-and-forths, and delivered on time. The platform looks professional and my students have been giving great feedback on how easy it is to use. I will definitely work with Arun again for future upgrades.

Students enrolling and learning from day one of launch
N

Nibesh

Learn with Nibesh

Process

From idea to shipped product

No ambiguity. No retainer traps. Just a clear process that keeps you in control at every step.

01

Discovery Call

Free · 30 minutes

We get on a call — no pitch, no pressure. I listen to your idea, your constraints, and what success looks like for you. You leave with clarity on whether we're the right fit.

02

Proposal & Architecture

Delivered within 48 hours

I send a detailed scope — tech stack, timeline, milestones, and a fixed-price estimate. No vague hour estimates. No surprise invoices. You approve, we move.

03

Build & Weekly Demos

Transparent, iterative delivery

You see working software every week. Not status updates — actual demos. You give feedback early, not after the final invoice.

04

Launch & Handoff

Full ownership transfer

I handle deployment, write the documentation, and walk your team through everything. You own 100% of the code, the infrastructure, and the knowledge to run it.

The discovery call is free. The clarity is priceless.

Start with a free call
Contact

Let's Build Something Together

Have a project in mind? Drop a message — I respond within 24 hours.

Let's Connect

Open to new projects, consulting, and freelance work. On a tight timeline? I can usually start within a week.

Currently Open To

New Project Collaborations
Freelance Opportunities
Technical Consulting

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