Mohsin J.

I’ve been building and scaling web platforms for over 6 years, primarily using Ruby on Rails, JavaScript, React, and Node.js - with a strong focus on creating customized solutions for clients across different industries. 🥇Spent over 2 years enhancing MailMunch (Marketing SaaS), integrating it with Shopify and GraphQL to improve the lead generation and email campaign features for 100k+ businesses. I worked on building custom Shopify integrations, product page templates, and enhancing backend workflows. 🥇Worked on MajorClarity (EdTech), where I integrated the Indeed API for internship search functionality and improved the platform’s authorization system. This system supports thousands of students in the US with real-time career exploration and progress tracking. 🥇Built Concert Finance (Fintech), a platform for commission calculation and payment release workflows in Ruby on Rails. The system handled 60,000+ transactions and streamlined reporting for both managers and payees. 🥇Helped EdgeAuditor (SaaS) optimize resort operations by automating daily tasks like housekeeping and reporting. I used Sidekiq to move heavy tasks to the background, improving system performance and scalability for 12k+ monthly tasks. I specialize in full-stack development, integrating Ruby on Rails for backend efficiency, and JavaScript/React for dynamic frontends. I also have deep expertise in building Shopify custom themes and templates using Liquid, and integrating Shopify API to create seamless e-commerce solutions. Whether building from scratch or improving existing systems, I leverage Node.js, GraphQL, PostgreSQL, Redis, Sidekiq, and Docker to create scalable, maintainable, and high-performing applications. Clients rely on me for: 🔹 Scalable backends that avoid bottlenecks and handle high traffic. 🔹 Real-time features like dashboards, notifications, and live updates. 🔹 Clean test coverage using RSpec, FactoryBot, and TDD/BDD practices. 🔹 Collaborative workflows (I've mentored teams and led dev projects to success). I focus on building practical, user-friendly solutions that not only solve business problems but also ensure long-term maintainability and scalability of the codebase.