Software & Infrastructure Solutions · Pune, India

Your ideas, built into working solutions.

Whatever you need built with computers, I take care of it from the first conversation through launch and support.

Plan · Build · Launch · Support Taking on client projects
5 CLIENTS Companies I have worked with
END TO END Requirements through deployment
ALL TECH Software, hardware and everything in between
OPEN SOURCE 50+ public repositories on GitHub

Clients

Companies I have worked with.

An ever-growing list, with more being added all the time.

About Me

I build it, and I stay with it.

I am Harikaran Chettiyar, but most people call me Hari. I am a Computer Science graduate based in Pune. I turn unclear ideas into working products, and I take care of the details too, like domains, hosting, speed and handover.

I work on websites, mobile apps, automation and Linux systems. I keep taking on new business work, so my list of companies keeps growing. I like to own the job from the first conversation to launch, and after.

From idea to launch

  1. Plan

    Understand what you need and agree the practical way forward.

  2. Build

    Websites, apps, platforms and systems, built to do real work.

  3. Launch

    Set up, tested and made ready for real use.

  4. Support

    Help after launch, so it keeps working for you.

Services

Need something built?

One person for the whole journey: plan, build, launch and support.

Websites

Business sites, portfolios, landing pages, online services and improvements to existing sites.

Mobile apps

Useful apps for customers, teams or personal ideas, from concept through release.

Online platforms

Booking systems, dashboards, portals, accounts and tools that bring your work into one place.

Business software

Custom tools that simplify operations, organize information and reduce repetitive work.

Infrastructure & hardware

Full-scale automated Linux or Windows systems, with hardware and software working together.

Consulting & coordination

Clear business English and practical advice to bridge business goals, people, software and infrastructure.

Projects

Work that shows how I build and deliver.

Client work

Websites and platforms I built and launched for companies.

Averra Data homepage: headline reading Master Data, Build Intelligence, Create Impact
Featured client project
Next.js TypeScript Client project

Averra Data

A learning and exam website with five course tracks, student accounts, timed exams and an admin area. I built it and now run all of its technology.

Role
Full-stack Developer
Ownership
End-to-end delivery
Delivery
Live production site
CloudStudio108 homepage: neon logo above the headline Elevate Your Sound, Recording and Music Production Studio
Featured client project
JavaScript Performance Client project

CloudStudio108

A fast website for a recording studio, with booking and 50+ photos that still load quickly.

Role
Web Developer
Ownership
End-to-end delivery
Delivery
Live production site
Unidos Systems homepage: headline reading Analyze data, Act with confidence
Client project
HTML & CSS JavaScript Client project

Unidos Systems

A website for a data analytics and AI governance company, with a page for each of its three services.

Role
Web Developer
Ownership
Build and upkeep
Delivery
Live production site
Carrier Wave Technology homepage: headline about PLC-HMI programming training
Client project
Cloudflare Workers JavaScript Client project

Carrier Wave Technology

A website for a training and panel-making company, plus a system where staff issue certificates and anyone can check them online.

Role
Full-stack Developer
Ownership
End-to-end delivery
Delivery
Website and certificate system
Brevity Talk homepage: headline reading Short Talks, Big Memories
Client project
Full product Client project

Brevity Talk

A platform where fans book short live video moments with verified creators. I built the whole product.

Role
Full-stack Developer
Ownership
Whole product
Delivery
Live production site

Open source

Public code you can read, run and reuse. Over 50 of my GitHub repositories are public.

Featured open-source project
Node.js Docker Open source

TunnelPane

A file transfer tool you host yourself, with a browser version and a terminal version, built to work safely over HTTPS without opening SSH.

Role
Full-stack Developer
Ownership
Independent build
Delivery
Open source, with demo video
Go Docker Open source

TunnelTerm

A web terminal for a Linux server, protected by a login, running in Docker, with optional Cloudflare Tunnel access.

Role
Full-stack Developer
Ownership
Independent build
Delivery
Open source, with demo video
C Device kernel Debian packaging Open source

Linux on a Smartphone: Realme 6

A custom Linux kernel for the Realme 6 phone, packaged for easy install, turning an old phone into a low-cost Linux server.

Role
Kernel & Systems Developer
Ownership
Kernel and device workflow
Delivery
Open-source repository
More work See 8 more projects 8 projects · 50+ repos

Eight more projects. Most are open source, and there are 50+ public repositories on my GitHub.

Experience

Real work for real companies.

Started as an intern

Runs all technology

Averra Data

I joined as an intern and built their whole platform: course pages, student accounts, timed exams and an admin area. I now look after all of their technology, including their in-house IT systems.

Client work

Web Developer

CloudStudio108

I built their website with booking and 50+ photos, set up their domain and hosting, and made sure it loads fast.

Client work

Web Developer

Unidos Systems

I built and maintain their website, which covers data analytics, data governance and AI governance.

Client work

Full-stack Developer

Carrier Wave Technology

I built their training website and a certificate system, where staff issue certificates and anyone can check them online.

Client work

Full-stack Developer

Brevity Talk

I built the whole product: a platform where fans book short live video moments with verified creators.

Education

B.Tech in Computer Science

Ajeenkya DY Patil University

Pune, Maharashtra. Graduated with a CGPA of 8.06.

Working Range

Where I add the most.

Web platforms

Responsive interfaces, authenticated workflows, real-time features, dashboards, and media-heavy experiences.

Automation and scripting

Config-driven setup, repeatable workflows, development utilities, and practical tools that remove manual work.

Android and Linux systems

Kernel patching and cross-compilation, Debian packaging, device boot workflows, recovery tooling, remote services, and Linux environment customization.

Client delivery

Shipping real sites end to end: build, domain and DNS setup, edge deployment, SEO, and handover.

Get in Touch

Have an idea or a problem to solve?

I am based in Pune, India. Tell me what you need and we'll find a practical way forward.