Full-Stack Engineer - Shopify, ERP & GenAI

Tushar Lakhani

+91-958******* ***********@*****.*** linkedin.com/in/tushar-lakhani github.com/tusharrr017-arch Summary

Full-stack engineer with 2.5+ years building scalable web apps, Shopify storefronts, ERP solutions, and AI pipelines across SaaS and e-commerce verticals. Proficient in Python, JavaScript, React, FastAPI, Frappe Framework, and GenAI/RAG systems.

Experience

Full-Stack Developer Jul 2024 – Present

Validare Agency (Shopify, SaaS & E-commerce Client Projects) Frappe, React, Next.js, FastAPI, Node.js, Redis, MariaDB

• Engineered a Canvas-based rendering engine for data-heavy visualizations; optimized pixel-buffer manipulation to sustain 60 FPS and cut DOM nodes by 76.4%.

• Offloaded WebSocket logic and heavy compute to Web Workers, eliminating main-thread blocking and improving UI responsiveness by 37.2%.

• Built a custom Frappe LMS from scratch — DocTypes for enrollment, progress tracking & certificates; Python controllers + JS form scripts for automated workflows and RBAC, cutting coordination overhead by 61.8%.

• Integrated WhatsApp Business & Razorpay via Frappe hooks; tuned slow MariaDB queries on report-heavy DocTypes, bringing average ERP view load time down from 3.8s to 1.3s.

• Boosted backend throughput 2.4x via connection pooling and caching, stabilizing response times at 318ms (71.6% improvement) under peak concurrent load.

• Built bespoke Liquid.js modules and custom Shopify middleware; aggressive asset optimization and tree-shaking pushed Lighthouse scores from below 30 to 94.

Software Engineer Intern Oct 2023 – Apr 2024

Tirupati Software Infotech Pvt. Ltd. React, Ant Design, Redux, Node.js, Axios, JavaScript

• Engineered secure RESTful APIs with RBAC, managing async state, session handling, and data persistence for high-traffic internal tools.

• Built modular React + Ant Design dashboards, improving operational efficiency by 38.6% and reducing post-deployment bugs by 23.4%.

• Collaborated with backend teams to optimise API integrations and reduce frontend data-fetch latency. Projects

AEO Diagnostics Next.js 15, React 19, TypeScript, OpenRouter API, Tailwind CSS 2026

• Built an AI Engine Optimization dashboard comparing brand visibility across multiple LLMs for shopping-intent prompts.

• Implemented a multi-model orchestration pipeline using OpenRouter API with structured parsing for GPT-4o, Claude, and Llama.

• Developed share-of-voice scoring, competitor gap analysis, and executive-style AI recommendation insights across models.

CodeSense AI FastAPI, ChromaDB, OpenAI/OpenRouter APIs, React, Docker 2025

• Built a codebase Q&A platform indexing repos from ZIP uploads or GitHub URLs with RAG responses and source citations.

• Developed a FastAPI + ChromaDB pipeline for code chunking, embeddings, and semantic search across entire repositories.

• Implemented vector indexing and Dockerized deployment with OpenAI/OpenRouter-compatible APIs. Skills

Languages: Python, JavaScript, TypeScript, SQL, C++, HTML/CSS Frontend: React, Next.js, Ant Design, Redux, Tailwind CSS, Web Workers, Canvas API Backend: FastAPI, Django, Frappe Framework, Node.js, Express, REST APIs, WebSockets, Celery Databases & Caching: PostgreSQL, MongoDB, Redis, ChromaDB, Vector Search, Connection Pooling AI / GenAI: OpenAI API, Anthropic API, OpenRouter API, RAG Pipelines, Prompt Engineering, LLM Evaluation, Multi-Agent Systems

Shopify: Liquid.js, Theme Development, Custom Apps, Storefront API, Lighthouse Optimisation DevOps & Tools: Docker, CI/CD, Git/GitHub, Postman, Jest, Pytest, Railway, Netlify, Linux Education

JECRC University 2024

Bachelor of Computer Applications (BCA) – GPA: 9.6 / 10 Jaipur, Rajasthan

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