08/12/2026 updated

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Full-Stack Developer & EdTech Founder | AI-Integrated E-Learning Platform Builder

Delhi, India
Only remote
M.Sc. Mathematics, Shobhit University, Meerut, India, 2014
Delhi, India
Only remote
M.Sc. Mathematics, Shobhit University, Meerut, India, 2014

Profile attachments

RSUME SACHIN SHARMA.pdf
Vidaara_Portfolio-08.png

FlutterApplication Programming Interfaces (APIs)Code ReviewLaTeXNode.jsOpenStackCloud Platform SystemData SciencePrompt EngineeringFull Stack DevelopmentCloudflareDartArtificial Intelligence Markup Language (AIML)Elk Stack
Full-Stack Web Development
Expertise in building full-stack web applications using Node.js, Express.js, JavaScript, EJS server-side rendering, MySQL database design, REST API development, and Progressive Web App support. Deployment on Hostinger with Cloudflare DNS and HTTPS/SSL.

AI & Agentic Development
Hands-on experience with Claude, ChatGPT (GPT-4/5), DeepSeek, Mistral AI, AI agent integration, RAG and LLM APIs, and AI-assisted app development. Application of an AI-first workflow to design, code, debug and ship production software at high speed.

LaTeX & KaTeX Mathematics Typesetting
Over a decade of experience typesetting mathematics to publication standard using LaTeX, including e-books, worksheets, solution manuals and complete curricula. Rendering of mathematics at textbook quality directly in the browser via KaTeX.

Symbolic Computation & Curriculum Design
Development of a deterministic, rule-based symbolic mathematics engine (Ganak) that solves K-12, SAT, JEE, CAT and Olympiad problems step by step, combined with comprehensive curriculum design for K-12 and competitive exams.

Flutter & Cross-Platform Mobile App Development
Building of cross-platform mobile applications using Flutter and Dart, published on Google Play, served by a read-only public Content API.

Git & GitHub (Version Control & CI/CD)
Use of Git and GitHub for version control and continuous integration and deployment workflows across all projects.

Cloud Deployment & Linux Administration
Deployment and management of production servers on Linux using Bash, Hostinger, Cloudflare (DNS, HTTPS/SSL), with over a decade of Linux as the primary development and deployment environment.

Web Security
Implementation of security hardening measures including Helmet/CSP, rate limiting, input validation, and MySQL-backed server-side sessions.

Search Engine Optimization (SEO) & Structured Data
Building of dynamic sitemaps, robots.txt, JSON-LD structured data (Organization, Course, Article, Breadcrumb, QAPage), Open Graph/Twitter cards and IndexNow instant-indexing for full server-rendered SEO.

Prompt Engineering & AI-First Product Delivery
Application of prompt engineering techniques and AI-first workflows to accelerate product delivery, content generation, code review and continuous platform upgrades.

R Programming, HTML & CSS
Working knowledge of R programming, HTML and CSS for data analysis, web content creation and styling.

WordPress Website Development
Development and management of WordPress-based websites to enable non-technical contributors to publish content.

Google Data Analytics & Data Science
Certified in Google Data Analytics (Sep 2021) and Data Science via Coursera at Johns Hopkins University (Dec 2021), with applied skills in data management and analysis.

Languages

EnglishNative speaker

Project history

Founder, Architect & Full-Stack Developer

Udgam Welfare Foundation / Vidaara.org
Independently conceived, designed, built and deployed Vidaara.org, a free, ad-free, full-stack e-learning portal using Node.js, Express, EJS, MySQL and KaTeX. Built 66,000+ practice questions, mock-test engine, Ganak symbolic maths engine, Kridora game-development course, Vidaara Classroom LMS, HWA Homework with AI service, Ankora maths RPG, and companion Flutter apps on Google Play. Implemented SEO engineering, PWA support, web security hardening and a multi-language learning module.

Founder & NGO Director

Udgam Welfare Foundation
Founded and led a Delhi-based NGO providing free coaching, digital learning, books, food, accommodation and travel support to underprivileged students. Developed an AI-powered e-learning platform from 2020, designed curriculum-aligned digital content for Grades 1-12, supported 40+ hearing-impaired students in partnership with The Lepra India Trust Delhi, and managed all operational, volunteer and partnership activities.

Mathematics Content Developer (LaTeX)

MathStudy.in
Developed and published original mathematics e-books, notes, worksheets and practice papers for students of various grades. All content authored in LaTeX since 2014 and published independently on www.mathstudy.in.

Assistant Manager - Administration

Intelenet Global Services
Conducted comprehensive Management Information System (MIS) analysis to optimize operational efficiency and reduce costs. Prepared detailed budget forecasts and ensured adherence to Standard Operating Procedures (SOPs).

Sr. Executive - Admin

Bharti Telesoft Ltd. (Airtel Subsidiary)
Managed daily administrative operations, including facilities management and vendor coordination, for a leading telecom subsidiary.

Sr. Executive - Admin

R Systems International Ltd.
Supervised and executed administrative functions, including data management and office management protocols.

Executive - Admin

vCustomers India Ltd.
Assisted in the preparation of budgets and financial analysis, contributing to departmental efficiency.

Data Entry Operator

Omam Consultants
Performed data management tasks and maintained records to support business operations.

Portfolio


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