You will get consultation for hiring a JavaScript browser extension developer
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Hiring a JavaScript developer for a browser extension or automation flow and not sure how the team should shape up? Reach out and tell us about your project — we'd love to talk it through with you and find the right path for what you're building.
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javascript, javascript, javascript, javascript, javascript, javascript, javascript, javascript, javascript, javascript, javascript, javascript, javascript, javascript, javascript, javascript, javascript, javascript, javascript, javascript.
Chrome Extension Developer, Browser Extension, Browser Automation, google chrome extension, chrome plugin, web scraping, bot developer, browser bot, python django, chromium, browserstack, trading bot, full stack developer, web3, browser extension marketing.
Buzz
javascript, javascript, javascript, javascript, javascript, javascript, javascript, javascript, javascript, javascript, javascript, javascript, javascript, javascript, javascript, javascript, javascript, javascript, javascript, javascript.
Chrome Extension Developer, Browser Extension, Browser Automation, google chrome extension, chrome plugin, web scraping, bot developer, browser bot, python django, chromium, browserstack, trading bot, full stack developer, web3, browser extension marketing.
Programming Languages
PHP, HTML & CSS, JavaScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, DesignWhat's included $50
These options are included with the project scope.
$50
- Delivery Time 1 day
- Number of Revisions 0
2 reviews
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AP
Anastasiia P.
Jul 27, 2026
Chrome Extension Developer for a short MV3 content script structure review (Browser Extension)
David is detail oriented enough. He was a clear communicator on scope from the first message and stayed accountable for outcomes on the turnaround we set. On the one area we were unsure about, the reply was solution oriented, not a wall of caveats. Committed to quality on a small job the same as on the larger one. We'll keep in touch with him.
AP
Anastasiia P.
May 7, 2026
Chrome Extension + Browser Extension Developer with Browser Automation
Hired David and his team at abz.agency for a Chrome Extension Developer engagement around our Honey-style coupon extension, and the experience exceeded our expectations from start to finish. David was our point of contact at abz.agency and the one who scoped the engagement end to end - exactly the kind of partner you want on a Chrome Extension build like this. He is a Clear Communicator who walks you through every option in plain English instead of dumping jargon, and Solution Oriented whenever a tradeoff came up between coverage, cost and timeline. He came back with a working recommendation rather than a list of problems every single time.
What stood out the most was how Detail Oriented David is at the intake stage. Edge cases in our Browser Extension scope I would have missed - around merchant coverage, store review posture and Browser Automation flows for code application - he surfaced upfront and made sure the right people on the abz.agency Chrome Extension Developer team were lined up for each technical session. We worked closely with their PDM through the three-day discovery, and the resulting brief, with build estimates, risk register and an investor-materials annex, was thorough enough that we walked away with a clear, fundable spec.
David and his Chrome Extension Developer team are Committed to Quality in a way you do not see often. The PDM and team researched our reference merchants, walked us through the Browser Extension architecture, took us through the Browser Automation engine and Chrome Web Store permission posture, and produced a deliverable that reads like it came from a much larger studio. David made sure the team's outputs were consistent, polished and aligned with what we actually needed - he was the one keeping the engagement on rails on our side.
David is also Accountable for Outcomes. He took ownership of the timeline, kept us updated with concise status notes and made sure his PDM and team behind him stayed aligned with our brief. When we asked for an extra checklist around the Browser Automation rollout and a tighter pass on the investor pack, he turned it around with the team inside the same day and did not need a single follow-up.
Bottom line: David is the kind of Chrome Extension Developer-side partner you want running point - a Clear Communicator, Committed to Quality, Solution Oriented, Detail Oriented and Accountable for Outcomes every step of the way, with a strong PDM and abz.agency team behind him. We would hire David and his team again for any Chrome Extension, Browser Extension or Browser Automation work, and recommend them to anyone who wants a real Chrome Extension Developer partner rather than a code-only contractor.
What stood out the most was how Detail Oriented David is at the intake stage. Edge cases in our Browser Extension scope I would have missed - around merchant coverage, store review posture and Browser Automation flows for code application - he surfaced upfront and made sure the right people on the abz.agency Chrome Extension Developer team were lined up for each technical session. We worked closely with their PDM through the three-day discovery, and the resulting brief, with build estimates, risk register and an investor-materials annex, was thorough enough that we walked away with a clear, fundable spec.
David and his Chrome Extension Developer team are Committed to Quality in a way you do not see often. The PDM and team researched our reference merchants, walked us through the Browser Extension architecture, took us through the Browser Automation engine and Chrome Web Store permission posture, and produced a deliverable that reads like it came from a much larger studio. David made sure the team's outputs were consistent, polished and aligned with what we actually needed - he was the one keeping the engagement on rails on our side.
David is also Accountable for Outcomes. He took ownership of the timeline, kept us updated with concise status notes and made sure his PDM and team behind him stayed aligned with our brief. When we asked for an extra checklist around the Browser Automation rollout and a tighter pass on the investor pack, he turned it around with the team inside the same day and did not need a single follow-up.
Bottom line: David is the kind of Chrome Extension Developer-side partner you want running point - a Clear Communicator, Committed to Quality, Solution Oriented, Detail Oriented and Accountable for Outcomes every step of the way, with a strong PDM and abz.agency team behind him. We would hire David and his team again for any Chrome Extension, Browser Extension or Browser Automation work, and recommend them to anyone who wants a real Chrome Extension Developer partner rather than a code-only contractor.
About David
Chrome Extension Developer Browser Extension Browser Automation BDM
100%
Job Success
Kyiv, Ukraine - 2:30 am local time
🧩 Browser Extension and Browser Automation work
✅ 100% Job Success Score
🚀 200+ extension projects shipped over 12+ years
📈 Flagship extension serving 140K+ active users
🔒 Manifest V3, strict CSP and zero remote code
I provide Chrome Extension Developer services covering extensions across Chrome, Firefox, Edge, Safari and Opera, shipped to Chrome Web Store, Firefox Add-ons and Edge Add-ons. My job is to scope Chrome Extension Developer engagements, match the right Chrome Extension Developer engineers and stay accountable for delivery.
Why hire my Chrome Extension Developer (s):
- one Chrome Extension Developer owning extension, backend and dashboard end to end - no vendor handoffs
My Chrome Extension Developer owns the Chrome extension lifecycle - architecture, content scripts, background workers, OAuth and store submissions - and treats store moderation and cross-engine quirks as the real work. After a junior Chrome plugin build fails review, the same Chrome Extension Developer rebuilds it into a version reviewers accept. Founders also hire my Chrome Extension Developer engineers for migrating a Google Chrome extension to Manifest V3, for full stack developer engagements where the Chrome Extension Developer owns the whole product, and for JavaScript-heavy Chrome Extension Developer products.
My Chrome Extension Developer work isn't only Chrome. A real Browser Extension is cross-engine: Chrome and Edge (Chromium), Firefox, Safari, Opera. My Chrome Extension Developer builds a single Browser Extension codebase with engine-specific shims, so the same codebase runs on every engine, and BrowserStack QA keeps each build green. A Chrome Extension Developer launch also needs Browser Extension marketing - listing optimization and store metadata that converts without tripping policy.
Browser Automation is the other half of what my Chrome Extension Developer delivers: scripted flows that run in real browsers when an API doesn't exist. On Browser Automation engagements my Browser Automation engineers build with Puppeteer, Playwright, headless/headful Chromium, plus Python Django backends for scrapers, trading bot pipelines, web scraping and data extractors. A competent bot developer respects rate limits, fingerprints and TOS - that is how Browser Automation stays alive instead of getting blocked in a week. My Browser Automation practice also covers browser bot orchestration, Web3 wallet automation and LinkedIn scraping through the user's own session. Where Browser Automation and Browser Extension overlap, my Chrome Extension Developer ships a hybrid - an extension that runs scripted Browser Automation flows signed by the user.
Clients hire my Chrome Extension Developer engineers when they need:
- a Chrome Extension Developer to ship a Chrome extension that passes store review
- a Browser Extension built once for Chrome, Firefox, Edge and Safari
- Browser Automation with Puppeteer / Playwright for web scraping or bots
- a Chrome plugin that integrates with a SaaS, CRM or trading product
- LinkedIn scraping through user's session, not headless farms
- a bot developer for a trading bot with browser-side execution and webhooks
- Web3 / wallet integration inside a Browser Extension
- a browser bot orchestrator for OnlyFans-style creator dashboards
- Browser Extension marketing and store listing tuning around launch
Recent Chrome Extension Developer and Browser Automation work my engineers shipped:
- Shipped an AI shopping-safety Browser Extension that scans product pages across all major browsers - 80K active users on Chrome alone.
- Built a Browser Security shield - a Browser Extension with a DNS filtering layer and Chromium fingerprint defense - plus nearly 200 data removal bots scrubbing user records.
- Video download Chrome Extension Developer launch. Migrated a Google Chrome extension to Manifest V3 with OAuth and native messaging - Twitter, Instagram, TikTok, YouTube and Facebook behind a 3-hour server-side cache.
- Developed a Browser Automation content parser on Puppeteer and Node.js that reads 2,500+ unique sites at ~90% success and clears Cloudflare bot protection in 70% of cases.
- Published a coupon-finder Browser Extension on Chrome Web Store - 18 countries, 7 interface languages, 20+ deal categories on a Laravel + Vue.js backend.
- Delivered a trading bot Browser Automation platform on a Python Django backend - 50 - 500 parallel bots per event and 50K+ runs/day, QA on BrowserStack.
Core Chrome Extension Developer stack: JavaScript, TypeScript, React, Vue.js, HTML5, Manifest V3, Chromium, Puppeteer, Playwright, Node.js, FastAPI, Python, Django, PHP, Laravel.
Need a Chrome Extension Developer who delivers Browser Extension and Browser Automation work and stays long-term - let's talk. Most Chrome Extension Developer clients come back for the next Chrome Extension Developer phase.
Steps for completing your project
After purchasing the project, send requirements so David can start the project.
Delivery time starts when David receives requirements from you.
David works on your project following the steps below.
Revisions may occur after the delivery date.
Free consultation on your brief
We listen to your context (idea, timeline, current stack, what you've tried), ask the questions we need, and run the free consultation.