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Sachin Sharma

Educator · Philanthropist · EdTech Founder · Full-Stack & AI Developer

Professional Summary

Accomplished educator and non-profit founder with over a decade of experience teaching mathematics to underprivileged students, paired with a rare, hands-on command of modern full-stack engineering. I founded the Udgam Welfare Foundation (2012), a Delhi-based NGO providing free coaching, digital learning, food, accommodation and travel support to students who cannot afford private tuition. Most recently I conceived, architected and single-handedly built Vidaara.org — a free, full-stack e-learning portal (Node.js, Express, MySQL) that renders LaTeX/KaTeX mathematics at textbook quality and delivers K–12, JEE/NEET, SAT/CAT/SSC, language-learning and mock-test resources to learners worldwide. Around it I built Ganak (a step-by-step mathematics engine), Ankora (a math game for children) and companion Flutter apps. I also partner with other non-profits — including The Lepra India Trust, Delhi — to bring inclusive, bilingual e-learning to 40+ hearing-impaired students. I build with an AI-first workflow — using Claude, ChatGPT, DeepSeek and Mistral AI, and integrating AI agents — to design, code, debug and ship production software far faster than a traditional solo developer could. I am dedicated to expanding access to inclusive, equitable, genuinely good education.

Why I left my job

In 2012 I walked away from a stable corporate career to give underprivileged children the engineering dreams I could never chase myself — dreams I lost to a lack of money and guidance, not a lack of ability. I decided that no child should be stopped by the same walls that once stopped me. That single conviction became the Udgam Welfare Foundation — and everything I have built since, from free coaching and LaTeX e-books to Vidaara.org, exists for one reason: so that a student's future is decided by their effort, never by their bank balance.

Selected Projects

Vidaara Flagship · E-learning portal · vidaara.org

A free, ad-free e-learning portal for Class 1–12 and competitive exams (SAT, CAT, SSC CGL, CTET, JEE, NEET, IMO). Thousands of MCQs, full mock tests, interactive labs, an AI study tutor, a Q&A forum and language learning — all rendered with textbook-quality KaTeX maths.

HWA — Homework with AI Commercial · AI + expert homework help · hwa.vidaara.org

A paid AI-plus-expert homework service: a student submits any assignment, an AI drafts a fully worked solution, a subject-matter expert reviews and refines it, and the AI then incorporates the expert's feedback before final human approval — pairing AI speed with human-verified accuracy. Backed by a private in-house bank of 12,000+ NCERT and OpenStax questions with step-by-step solutions (Maths, Science and English, Grades 5–12, India CBSE + US curriculum).

Vidaara Classroom Commercial · LMS for schools & tutors · classroom.vidaara.org

A complete learning-management system (SaaS) for teachers, students, parents and admins — course builder, homework and assignment workflows, an auto-graded quiz engine, live online classes (video), per-child parent progress reports and admin approvals. It lets any school or private tutor run their entire classroom digitally on Vidaara’s infrastructure.

Ganak Mathematics engine · ganak.vidaara.org

A mathematics engine that solves K-12, SAT, JEE, CAT, GRE and Olympiad problems step by step — a deterministic, rule-based symbolic solver built on a structured knowledge base of formulas, identities and theorems. It powers the maths across Vidaara.

Ankora Math game for kids · ankora.vidaara.org

A math RPG for children (Grades 3–8) where maths is the weapon — solve a sum, cast the spell, beat the monster. Designed to make daily practice feel like play. Playable on the web now; an Android build is on the way.

Kridora Game development with AI · Grades 5–10 · kridora.vidaara.org

A project-based game-development course for Grades 5–10 where every lesson ends in a game you can play — 15 levels running from digital and programming foundations through game maths, design, Phaser and publishing, with an AI co-pilot that grows from tutor to pair-programmer as the learner does. Its heart is the Game Lab: an in-browser code editor with live preview that runs student code inside a sandboxed iframe, so a game is written and played in seconds.

Words of Vidaara (WOV) Android · Vocabulary game · Google Play

A fast, addictive word game built in Flutter that grows your English vocabulary one round at a time. Available now on Google Play.

Vidaara App Android · Companion app · Google Play

The full Vidaara learning portal in your pocket — study material, mock tests and practice for Class 1–12 and competitive exams, served by a read-only public Content API. Available now on Google Play.

MathStudy.in LaTeX maths e-books · mathstudy.in

Original mathematics content for K-12 and competitive exams since 2011 — notes, worksheets, practice papers and e-books, authored in LaTeX since 2014 and published independently.

Udgam Welfare Foundation Non-profit · since 2012 · udgamwelfarefoundation.com

The Delhi non-profit I founded in 2012 — free coaching, digital learning, books, food, metro passes and even accommodation for underprivileged students chasing engineering and academic dreams.

Experience

Self-Taught Engineering — Linux, LaTeX & the Web 2012 – Present

Independent (alongside the foundation)

  • Working on Linux since 2012 — my daily development and deployment environment for over a decade, from local builds to production servers, shell tooling and CI.
  • Authoring in LaTeX since 2014 — more than a decade of typesetting mathematics to publication standard: e-books, worksheets, solution manuals and complete curricula, which is also what taught me to render maths properly on the web with KaTeX.
  • Built udgamwelfarefoundation.com by hand in HTML in 2016 — my first website, written from scratch to give the foundation a presence online.
  • Migrated it to WordPress in 2018 to add richer features and let non-technical volunteers publish.
  • From 2021 adopted an AI-first workflow — using AI for content generation, code and continuous upgrades — which is what made a full rewrite feasible for one person.
  • Rebuilt the whole platform on Node.js and shipped it as vidaara.org: a modern, international-standard web application with server-side rendering, REST APIs, PWA support, security hardening and companion mobile apps.
Founder, Architect & Full-Stack Developer — Vidaara.org 2023 – Present

Vidaara (E-Learning Portal)

  • Independently conceived, designed, built and deployed a free, full-stack e-learning portal on Node.js, Express, EJS (SSR) and MySQL; deployed on Hostinger with Cloudflare DNS and HTTPS.
  • Authored all STEM content in LaTeX and rendered it with KaTeX across thousands of pages — including a complete 21-chapter NEET Physics course, JEE tracks, and SAT/CAT/SSC/CTET exam prep.
  • Built an auto-scoring mock-test engine, an AI tutor, a moderated Q&A forum, interactive labs, a learner dashboard (progress, certificates, badges) and a multi-language module (CEFR A2–B2) with a 1,300+ word bilingual vocabulary bank.
  • Engineered SEO end-to-end: dynamic sitemap (4,000+ URLs), JSON-LD structured data, Open Graph cards, full server-side rendering — verified in Google Search Console.
  • Hardened the app with Helmet CSP, rate limiting, MySQL-backed sessions and server-side validation; added PWA (offline + installable), text-to-speech and a mobile-first responsive design.
  • Built companion Flutter apps (Ankora, Words of Vidaara, the Vidaara app) served by a read-only public Content API.
  • Built Kridora (kridora.vidaara.org) — a 15-level, AI-assisted game-development course for Grades 5–10 whose in-browser Game Lab (CodeMirror editor, Canvas & Phaser) runs student code safely inside a sandboxed iframe, so every lesson ends in a playable game.
Founder 2012 – Present

Udgam Welfare Foundation (NGO)

  • Left a corporate career in 2012 to give underprivileged children the engineering dreams I could not pursue myself — founding and leading the foundation end to end.
  • Delivered years of free Mathematics coaching for JEE aspirants; provided free books, stationery, food, metro passes and even accommodation at my own home so no student dropped out for lack of money.
  • Launched a free AI-assisted e-learning platform during COVID-19 (2020) to keep students learning, and partnered with The Lepra India Trust to support 40+ hearing-impaired students with inclusive, bilingual Maths & English content.
  • Ran the full NGO operation: curriculum, volunteer coordination, partnerships with schools and Olympiad bodies (SOF/IMO), monitoring, reporting and donor communication.
Mathematics Content Developer (LaTeX) 2011 – Present

MathStudy.in

  • Created comprehensive, curriculum-aligned Mathematics content for K-12 and competitive exams, authored entirely in LaTeX.
  • Designed and published interactive e-books with step-by-step solutions, practice problems and visual aids — independently designed, maintained and distributed.
Administration & Operations roles 2002 – 2012

Intelenet, Bharti Telesoft (Airtel), R Systems, vCustomer, Omam

  • A decade in corporate administration and operations — MIS analysis, budgeting, SOP adherence, facilities and vendor management — before moving fully into education.

Education

  • M.Sc. Mathematics — Shobhit University, Meerut 2014
  • B.Sc. — CMJ University, Meghalaya 2012
  • B.Ed. — Maharishi Dayanand University, Rohtak 2010
  • PGDBM (Human Resource) — IMT Ghaziabad 2008
  • M.A. English — Dr. B. R. Ambedkar University, Agra 2003
  • B.Com (P) — University of Delhi 1999

Certifications

  • Google Data Analytics — Google / Coursera 2021
  • Data Science — Johns Hopkins University / Coursera 2021

Awards

  • Dr. A.P.J. Abdul Kalam Award (2017) — For contributions to education and social upliftment.
  • Human Excellence Award (2016) — For empowering underprivileged children to pursue engineering.
  • Social Reformer Award (2015) — For educational work with underprivileged children; invited speaker at India Habitat Centre.

Research & Publications

Skills