Hari KrishnaApp and web developerLet’s talk

I build apps and websites, with an eye for product and testing.

Open to freelance work

React Native, React and Next.js developer. 7+ years in software, including time as a tester, co-founder and head of technology.

Let’s talk See the work
SketchThis page, from sketch to build. Drag to compare.Build

Development is the job. Product and testing sharpen it.

Development

I write the code, test it and get it released.

  • Mobile apps in React Native and ExpoClink, Devee, Arc, OurNest
  • Websites and platforms in React and Next.jsCA Buddy, Devee, Raji Sunturbine
  • Ordering, payments, chat and video callsClink, Devee, iSchoolConnect
  • Release pipelines and store submissionsiSchoolConnect, Clink
  • React Native
  • Expo
  • React
  • Next.js
  • TypeScript
  • JavaScript
  • Redux
  • Tailwind CSS
  • Supabase
  • PostgreSQL
  • Firebase
  • REST APIs
  • Razorpay
  • GitHub Actions
  • App Store
  • Google Play

An eye for product

I ask who a feature is for before I build it.

  • User interviews and researchFreeBird
  • User flows and wireframesFreeBird
  • Scoping a first version that shipsClink, CA Buddy
  • Designing products of my ownArc, OurNest

An eye for testing

I look for what could break before users find it.

  • Test planning and QA reviewsiSchoolConnect
  • Automation with Appium and SeleniumMedicinewise, Livdemy
  • API and load testingiSchoolConnect, Livdemy

Where are you right now?

Right now I have
  • Development

Build it properly.

I take your designs to a released product: a React Native app for iOS and Android, or a website in React and Next.js.

Let’s talk
What you get
  1. Screens and reusable components
  2. Logins, APIs, payments, notifications
  3. Testing and release to the stores or the web

The work, and my part in it.

Three screens of the Devee field app: a product catalogue by category, an aquaculture product list, and a product page with a share brochure button.

Mobile app and web app

Devee

Field-force app and back-office admin

  • Development
  • Product
The problem
Field teams worked from calls and paper. The office found out about orders and stock after the fact, and reporting was manual.
What I built
A field-force app for the catalogue, orders, route planning, reports, chat and video calls. Beside it, a back-office admin with one-click sync to their Focus ERP.
Stack
React Native, Expo, Firebase, VideoSDK, Next.js, Redux
Timeline
App in 3 weeks, admin in 2 weeks
“They delivered our admin dashboard and field-force app as one coherent system. Our team now runs the whole organisation and takes orders from the field in one place — it replaced a stack of spreadsheets and phone calls.”
VinodhCTO, Devee

App case study Admin case study

The CA Buddy home page, with a practice overview showing client, task and document counts and upcoming filing deadlines.

Web platform

CA Buddy

Practice management for CA firms

  • Development
  • Product
The problem
CA firms ran their practice across WhatsApp, Drive, email and Excel, with no access control and no audit trail.
What I built
A multi-tenant platform for client records, deadlines, documents and reports. Each firm’s data is isolated, and sensitive fields are encrypted.
Stack
Next.js, Supabase, PostgreSQL, Cloudflare R2
Timeline
Built in 1 month
“Adinovus understood the compliance and security side of a CA platform, not just the interface. They built the multi-tenant foundation properly, so we launched confident that client data is handled the right way.”
Siva NageswaraoCEO, CA Buddy

Case study

The Raji Sunturbine home page, a dark site for a turbine and compressor overhauling firm with a Get a Quote button.

Website

Raji Sunturbine

B2B website that drives quote requests

  • Development
The problem
The firm had decades of engineering credibility and nothing online to show it to the plant managers who pick vendors.
What I built
A fast site with eight service lines, a leadership section, a field-work gallery and one clear path to a quote.
Stack
Next.js, Tailwind CSS, Framer Motion
Timeline
Built in 1 week
“We had decades of engineering credibility but nothing online to show for it. Adinovus turned that into a site that finally looks the part — plant managers take us seriously before the first call.”
Mallikharjuna Rao KMD, Raji Sunturbine

Case study

My own products

Two apps I designed and built for myself, from the first idea.

Earlier work

iSchoolConnectEdtech. Client project at Tilicho, 2022-23.
  • Development
  • Quality

The brief

Bring study-abroad services to mobile, on iOS and Android.

My part

As Tilicho’s developer on the project I implemented the Figma designs, social login, Razorpay payments, notifications and deep links. I also planned tests, reviewed test cases, guided the QA team and tested APIs with Postman.

Delivered

iOS and Android features, GitHub Actions release pipelines for both platforms, and deployment to both app stores.

The company

ProttimingField operations, on phone and tablet.
  • Development

The brief

Make rig and project details usable in the field, on Android phones and tablets.

My part

I translated Figma designs into reusable TypeScript components and responsive React Native layouts, with Redux and Firebase integration.

Delivered

Responsive layouts, a reusable component set and Redux state management.

FreeBirdStartup. Co-Founder, 2021-22.
  • Product
  • Quality

The brief

I joined to test the product.

My part

Testing grew into interviewing users, drawing wireframes and making product decisions.

What it led to

The founder invited me to join as Co-Founder.

Also

  • ShareTrip Expo development for taxi agencies sharing bookings.
  • Magod Lazer Employee work tracking across iOS and Android.
  • Livdemy Selenium automation that cut a daily 30-minute check to about four minutes.
  • Medicinewise Appium automation, SQL validation and notification testing.
  • Medloop Healthcare workflow testing with EMIS and Arkandus systems.

How a project runs.

You work directly with me. We agree the scope, budget and hours before any work begins, and you review working features at each milestone.

  1. Scope

    We agree who it’s for and what the first version must do.

  2. Build

    React Native, React and Next.js, in milestones you can review.

  3. Test

    Test plans and regression checks, as part of the build.

  4. Ship

    Store submissions, web releases and release pipelines.

A developer who started as a tester.

I build mobile apps in React Native and websites in React and Next.js. Through my company, Adinovus, I’ve built products for Clink, Devee, CA Buddy and Raji Sunturbine, and I led technology at Clink.

I started as a tester at Tilicho, across healthcare, education and mobile apps. At FreeBird, testing grew into user interviews, wireframes and product decisions, and the founder invited me to join as Co-Founder.

That background is why I question a feature before I build it, and test it before I call it done.

My background on LinkedIn

Tell me what you need built.

A design file, a live product or an idea. A finished specification isn’t required.

Prefer email?hari@adinovus.com
I need help with
Add timeline or budget (optional)

Opens your email app. Review and send there.

Common questions

When can you start?

I take on freelance work through Adinovus. Send your scope and target dates, and I’ll reply with the hours I can commit and a start date.

Do you only build mobile apps?

No. I build React Native apps for iOS and Android, and websites and dashboards in React and Next.js.

Can you work with an existing codebase?

Yes. Send the stack, current issues and next milestone. I start with a codebase review to define the scope.

How much will my project cost?

It depends on scope and the product’s current state. Send your priorities and budget range, and I’ll price a first milestone.

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