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Pasindu P.
@pasinduxyz
Chrome Extensions and Google Apps Script Automation Expert
Sri Lanka
English
About me
Hi, I’m Pasindu, a Full-Stack Software Engineer. I build high-performance Chrome Extensions, AI SaaS tools, and Google Apps Script automations. I focus on scalable software that solves real business problems.
My Expertise:
🚀 Chrome Extensions: Manifest V3 compliant, React-based UIs, and Side Panels.
🤖 AI Integration: OpenAI/Gemini APIs for smart automation and AI Agents.
📊 Google Apps Script: Expert Sheets automation and custom business workflows.
🌐 Web Scraping: Reliable data extraction and CRM syncing.
I deliver clean, store-ready code. Let’s build a tool that works—Message me!
Skills
Pasindu P.
Offline •
Average response time: 1 hour
See my services
Browser Extensions
I will develop custom google chrome extension or browser extension
Browser Extensions
I will develop any kind of chrome extension or browser script
Portfolio
Work experience
Chrome extension developer
Upwork • Freelance
Feb 2025 - Present • 1 yr 5 mos
As a Lead Full-Stack & Automation Developer, I have successfully engineered and deployed over 100+ custom Chrome Extensions with a 100% Google Chrome Web Store approval rate. My expertise lies at the intersection of browser-based software, AI integration, and complex workflow automation. I specialize in converting manual, repetitive business processes into high-performance, automated systems that save clients hundreds of hours in operational costs. Key Professional Achievements & Expertise: Custom Chrome Extension Development (Manifest V3): I build production-ready extensions using the latest Google standards to ensure long-term stability. My builds include advanced features like modern Side Panels, Popups, and Content Scripts injected for real-time web interaction. AI & LLM Integrations: I have a proven track record of integrating OpenAI (GPT-4o) and Google Gemini APIs into browser environments. Notable projects include AI-powered Gmail assistants for auto-rewriting and intelligent writing assistants that leverage LLMs for data analysis. Advanced Web Scraping & Data Extraction: I design high-fidelity scraping engines capable of bypassing complex anti-bot measures like AWS WAF or Amazon Captcha. My systems sync data directly to Google Sheets or custom SaaS dashboards via REST APIs. Google Apps Script (GAS) & Workspace Automation: I develop enterprise-level automation for Google Sheets, Drive, and Forms. I build custom triggers and web apps that connect spreadsheets to Stripe and Zapier to create seamless data pipelines. Full-Stack SaaS Architecture: My background in React.js and Node.js allows me to build entire infrastructures, from sleek frontend UIs to robust Firebase/Supabase backends with user authentication. I focus on writing clean, modular, and well-documented code that follows industry best practices. My business-first mindset prioritizes user retention and API cost-efficiency. Whether it is a Manifest V3 migration or a new AI-driven SaaS product
5 Reviews
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Rating Breakdown
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1-5 out of 5 Reviews
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ryanfern86
Australia
Working with Pasindu has been an outstanding experience. He is by far the best JavaScript developer I have ever worked with. From the very beginning, he understood my requirements quickly, communicated clearly, and delivered high-quality work on time. His expertise in JavaScript, SaaS development, and...
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kareemsa20
United Arab Emirates
Five stars, out of five stars -- GREAT contractor! This programmer was amazing, communication was great as well -- and very enjoyable. I definitely see Pasindu Piumal having a successful future on Fiverr, I know I will be offering/inviting him to my future jobs as my primarily selected coder. He even...
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derekgosling
Canada
Pasindu is an excellent Chrome extension developer with strong skills in browser automation, real-time monitoring, and workflow recovery. He handled complex requirements with clear communication, fast turnaround, and great attention to detail. The extension logic was reliable, well-structured, and built...
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jasonmwd
United States
Pasindu is top notch! Best Chrome extension developer I have dealt with. He never came up with excuses like others on the platform. Kept me updated and I had the best experience.
Seller's Response
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lejerry_edwards
United Kingdom
Pasindu did a great job on our Chrome extension project for Meta Ads Manager. He understood the requirements quickly, communicated clearly, and kept me updated throughout the process. The extension works smoothly, looks native, and he was able to handle follow-up changes fast when I needed adjustments....
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