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Mangal Core Engineering · Discipline · Impact

Built to solve. Meant to serve.

The operating system behind everything Mangal builds. Products shipped, problems turned into systems.

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Index
05 products
Disciplines
Engineering · Leadership · Service
Status
All systems go

Selected work 05

Engineered realities.

Products built with precision — serving real-world needs, each one a system rather than a feature.

TatvaFit app screens: member list, payments received and pending, add member and record payment

01Gym fee management

TatvaFit

The gym owner's secret weapon. A fee management system designed to 10X payment collection and eliminate defaulters.

Role
Founder
Status
Live
Visit TatvaFit (opens in a new tab)
RagXGen landing page: “Ask questions. Get answers grounded in your data.” with a sample question and grounded answer

02Retrieval-augmented generation

RagXGen

Retrieval-Augmented Generation, explained. A hands-on implementation to ask questions and get answers grounded in your own documents.

Role
Design & engineering
Status
Live demo
Try RagXGen (opens in a new tab)
Key art: gold and ice-blue modules connected by beams of light

03Open-source React library

@mangalcore/ui-utils

Micro React + TypeScript utility components — QR codes, avatars, latency indicators, JSON viewers and more — shipped as a tree-shakable npm package with CI/CD and automated releases.

Role
Author & maintainer
Status
Published on npm
Read the case study
Lakshya Run badge: a runner in uniform with “UPSI Run Mastery — 4.8 km, 28 mins — Pace up”

04UPSI run mastery

Lakshya Run

A specialised training tool that helps aspirants master the pace and endurance required for uniform services.

Role
Founder
Status
Coming soon
Visit Lakshya Run (opens in a new tab)
Portfolio landing page for Harimangal Pandey, Full Stack Developer

05me.mangalcore.com

Personal portfolio

A digital identity sculpted to reflect discipline, engineering craft and the philosophy of deep work.

Role
Design & engineering
Status
Live
View the portfolio (opens in a new tab)

Point of view

I operate across multiple dimensions.

  • 01Senior DeveloperCrafting code that scales.
  • 02Problem SolverSolution over syntax.
  • 03LeaderVision over authority.
  • 04BuilderObsessed with value.

I don’t chase titles. I build systems, people, and outcomes.

The record

Signals of depth.

  1. 01

    Engineering & technology

    • Senior Software Developer
    • Engaged with Microsoft on the Xbox team
    • On the payroll of Tech Mahindra
    • Smart India Hackathon — finalist
    • Multiple coding competition wins

    Proven technical excellence at scale.

  2. 02

    Leadership & communication

    • President — Int'l Toastmasters Club
    • Public speaker (summits & congress)
    • Performer (stage & speech)

    Articulating vision, inspiring action.

  3. 03

    Founding & building

    • Founder — TatvaFit
    • Founder — Lakshya Run

    Going from zero to one.

  4. 04

    Service & community

    • Active CSR contributor
    • Slum Swaraj Foundation (NGO)
    • District chess organiser

    Impact beyond the individual.

  5. 05

    Discipline & competition

    • State-level chess player
    • Gold medallist — 100m sprint

    The mind and body in sync.

Principles

What I stand for.

  1. 01Solve real problems
  2. 02Build before speaking
  3. 03Discipline over motivation
  4. 04Depth over noise
  5. 05Service over ego

If someone brings me a problem, I look for a system — not a shortcut.

Beyond the code

Curiosity keeps me dangerous.

  • Astrophysics & cosmosExploring the unknown
  • FPS gamingStrategy & focus
  • FitnessGym & nunchaku
  • Football & cricketTeam spirit
  • History & scripturesWisdom of the past
  • GuitarAlways learning
  • WritingDescriptive texts

Contact

Building something meaningful and stuck? Let’s talk.

contact@mangalcore.comBuild together on LinkedIn (opens in a new tab)