Avinaba Mazumdar

Frontend Engineer with 4+ years of experience building modern web applications using React.js, Next.js, and TypeScript. I have a strong focus on creating clean, performant, and scalable user interfaces.

At my previous role at a US-based SaaS company, I led frontend development and built complex features including workflow automation platforms, real-time editors, and interactive dashboards. I am also the creator of VaniPay, an AI-powered CRM built with Next.js and Vercel AI SDK.

I am passionate about frontend architecture, performance optimization, and building products that deliver great user experiences. I am currently looking for Senior Frontend Engineer or Full Stack Engineer roles where I can contribute meaningfully and continue growing.

Software Engineer 2 - Frontend at Sunbase (2024-06 – 2026-05)

B2B SaaS CRM

• Led a team of 5 JavaScript developers using JIRA in an Agile environment, handled code reviews, architecture decisions, and direct collaboration with QA, PM, and C-level executives to deliver monthly sprints consistently.
• Built a Role-Based Access Control (RBAC) system with animated OrgChart views for an HRMS module, including REST APIs, allowing teams to easily manage permissions without needing engineering support.
• Architected a visual workflow automation platform using JavaScript and Drawflow, supporting 100+ interconnected nodes and real-time validation, reducing non-technical clients' configuration effort.
• Engineered a real-time WYSIWYG editor with view mode and multi-file upload support (images & PDFs) via AWS and Bunny CDN, improving articles created per month for our content team.
• Built a high-performing, responsive marketing website using React, Next.js, and Tailwind CSS, with strong SEO optimisation, achieving 95+ Lighthouse scores and driving early product adoption.

Software Engineer 1 - Frontend at Sunbase (2022-05 – 2024-05)

B2B SaaS CRM

• Designed and implemented the frontend architecture of an AI-powered chatbot interface using JavaScript, HTML, and CSS with RAG-based retrieval, which in turn reduced support tickets by 20%.
• Integrated Razorpay credit-based billing and implemented analytics dashboards using Chart.js.
• Developed an RBAC-enabled Marketplace for Plugins and Modules with JavaScript and CSS Nesting for our Onboarding Team to manage our Web and Mobile clients efficiently.
• Built a JSON-driven Funnel Builder with AJAX and jQuery drag-and-drop, enabling non-technical users to create custom funnels without writing code and accelerating client onboarding.

Bachelor of Technology in Electronics – Heritage Institute of Technology (2018-08 – 2022-07)