Hire the Best A/B Testing Specialists

40+ Hours Available Per Week As a Top Rated Plus full-time freelancer on Upwork with over 8+ years of expertise in Software Quality Assurance, I specialize in ensuring your applications are bug-free and deliver exceptional user experiences, backed by over 225+ 5-star ratings ⭐ from satisfied clients! 🚀 With 27,000+ hours work on Upwork, I have successfully tested 310+ Android and iOS mobile applications and over 120+ web apps, helping clients achieve seamless product launches and exceptional performance. My experience includes collaborating with renowned organizations like UNICEF and leading brands like Samsung, ensuring their software meets the highest quality standards. I test applications across all types of network conditions, including 3G, 4G, and 5G, as well as high-speed connections (1Gbps) and low-speed scenarios down to kilobits per second (kbps), ensuring optimal performance and usability under real-world conditions. Key Achievements: 🏆 Top Rated Plus freelancer with 8+ years of professional QA experience ⭐ 225+ 5-star reviews from satisfied clients 📌 300+ Upwork projects successfully completed 🤖 10+ AI Voice & Chat Assistant platforms tested (Retell, Bland, Vapi, Wishpond AI, Senior Care AI, etc.) 🚀 Tested and launched 70+ startup products successfully to the store ⏰ Worked over 26,900+ hours on Upwork. 📱 Android: Samsung Galaxy S24 Ultra, Samsung Galaxy S21 Plus, Poco X4, RealMe GT Master Edition, OnePlus 9, OnePlus 8T, Samsung A18 📱 iOS: iPhone 16 Pro Max, iPhone 14 Pro Max, iPhone 14 Plus,iPhone 15 Plus, iPhone 13 Pro Max, iPhone 11, iPhone XR 💻 Desktop: MacBook Air, HP Pavilion X360, RealMe Book, Lenovo ThinkPad, Samsung Galaxy Book 4 & 5 Manual QA Skills: • AI Model Performance Testing • AI Agent Functional & Usability Testing • Conversational AI & Chatbot Testing • Requirement Analysis • Test Case Design & Execution • Defect Reporting & Management • SEO Testing • Functional Testing • End-to-End Testing • Integration Testing • Exploratory Testing • PWA Testing (Progressive Web App Validation) • Reverse Testing – Test with Invalid/Unexpected inputs to ensure robust error handling & stability • Regression Testing • Cross-Browser Testing • Mobile App Testing (iOS & Android) • Usability Testing • UI/UX Testing • Payment Gateway Testing • System Testing & Acceptance Testing • API Testing (Postman, Swagger) • Performance Testing (Basic manual approach using tools) 🤖 AI Testing Expertise • AI Model Performance & Response Accuracy Validation • Conversational Flow, NLP Intent & Entity Testing • Voice Agent Quality Testing (ASR, TTS, Latency, Filler Word Detection) • Knowledge-Base and Prompt Flow QA • Context Retention & Session Continuity Testing • Multi-Agent Coordination and Voice Call Testing • Real-World AI App Testing (Retell, Bland, Vapi, ElevenLabs, Play.ht, Wishpond AI, Senior Care AI) Tools & Platforms: • Bug Tracking & Management: JIRA, Trello, Asana, Linear, ScribeHow • Collaboration & Reporting: Google Sheets, Notion, Slack • Testing Platforms: BrowserStack, physical devices • Performance & Analytics Tools: GTmetrix, SimilarWeb • Documentation: Test Plans, Test Cases, Checklists, FRS, User Manuals Domains Expertise: • eCommerce (Shopify, WooCommerce) • SaaS Applications • Healthcare • Mobile Applications • Insurance • Banking & Financial Services • Gaming • Point of Sale (POS) • ERP Systems • OpenAI Integration With a strong commitment to delivering error-free, high-performing software, I aim to exceed quality expectations and provide products that users love. I am available for flexible timings across any time zone and dedicated to helping you bring your software to the highest standards of performance and user satisfaction. Why Choose Me? ✔️ Proven expertise in Manual QA testing ✔️ Comprehensive experience across web and mobile platforms ✔️ Skilled in test documentation, ensuring a structured and repeatable testing process ✔️ Ability to identify critical defects and edge cases ✔️ Adaptable to both Agile and Waterfall methodologies ✔️ Flexible work hours to meet your project needs ✔️ Expert in crawling websites to ensure flawless functionality and SEO perfection -------------------------------------------------------------------------------------------------------- Related Keywords: Manual Testing, API Testing, Web Testing, Mobile App Testing, Regression Testing, Cross-Browser Testing, Test Case Design, Jira, UI/UX Testing, End-to-End Testing, Functional Testing, Bug Reports, Quality Assurance, Payment Gateway Testing, iOS Testing, Android Testing, Test Plan, Usability Testing, User Testing, Software Testing, Manual QA, AI Testing, Chatbot Testing, Voice AI Testing, NLP Testing, Mobile App QA, Conversational AI, AI Model Evaluation, Reverse Testing, PWA Testing, Progressive Web App Validation, AI Apps Testing, Progressive Web Application, OpenAI, AI Apps, ChatGPT, Sora, Gemini, Generative AI, Chatbot

Launching a SaaS platform, mobile app, AI product, or website? I help startups, founders, and product teams uncover bugs, usability issues, confusing workflows, and hidden friction before they impact real users. Unlike traditional QA testers who focus only on finding bugs, I combine quality assurance, usability testing, and product thinking to help improve both product quality and user experience. Over the past several years, I have tested SaaS platforms, mobile applications, fintech products, healthcare systems, HR platforms, AI-powered tools, and marketplace solutions. My goal is not simply to report issues. My goal is to help you launch a product that users trust, understand, and enjoy using. ━━━━━━━━━━━━━━ WHAT I CAN HELP WITH ✓ Manual QA Testing • Functional Testing • Regression Testing • Exploratory Testing • End-to-End User Flow Validation • Smoke Testing ✓ Mobile App Testing • iOS Testing • Android Testing • App Store & Play Store User Experience Review • Cross-Device Validation • Responsive Design Testing ✓ Website & SaaS Testing • Account Registration Flows • Checkout & Payment Processes • Dashboard Testing • Admin Panel Validation • Permission & Role Testing ✓ UX & Usability Audits • User Journey Analysis • Friction Point Identification • Navigation Review • Conversion Funnel Review • UI Consistency Validation • Accessibility Feedback ✓ Product Audits • First-Time User Experience Review • Onboarding Evaluation • Feature Discoverability Analysis • Product Improvement Recommendations • Competitor Benchmarking ✓ API Testing • Postman Testing • Endpoint Validation • Response Verification • Error Handling Review ━━━━━━━━━━━━━━ DELIVERABLES Every project can include: • Detailed Bug Reports • Screenshots & Screen Recordings • Reproduction Steps • Expected vs Actual Results • Severity & Priority Classification • UX Improvement Suggestions • Product Recommendations • Final QA Summary Report ━━━━━━━━━━━━━━ TOOLS Postman Jira ClickUp Trello Notion Figma Chrome DevTools Browser Developer Tools ━━━━━━━━━━━━━━ RECENT PROJECT TYPES • SaaS Platforms • AI Applications • Healthcare Systems • HR Platforms • Fintech Products • Vendor Marketplaces • Mobile Applications • Startup MVPs ━━━━━━━━━━━━━━ WHY CLIENTS WORK WITH ME ✓ Detail-Oriented Testing ✓ Clear Communication ✓ Actionable Feedback ✓ Product-Oriented Thinking ✓ Fast Turnaround ✓ Reliable Reporting Based in the Netherlands and available for both one-time audits and ongoing QA support. Let's find the issues before your users do.

Instantly.ai Expert, Lemlist, Woodpecker, Apollo, Instantly, Lemlist, Smartlead, Clay, DNS, DMARC, DKIM, SPF, MX, Warmbox, Gmail Postmaster, Cold Email Expert, Cold Email Outreach Expert, Cold Email Marketing Expert, Email Deliverability ✅ If your cold emails aren’t landing in the inbox, your infrastructure isn’t optimized. ✔ I help businesses build powerful cold email systems that are technically sound, fully authenticated, and designed to scale safely. I specialize in cold email infrastructure, deliverability optimization, and outreach automation — ensuring campaigns perform consistently without risking domain reputation. ✔ Most campaigns fail because of poor backend setup, not copy. I configure complete sending environments, including domain setup, DNS records, SPF, DKIM, DMARC authentication, MX routing, inbox provisioning, SMTP/IMAP configuration, tracking domains, warmup strategy, and sending rotation systems. ✅ Services I Deliver: ✔ Cold email infrastructure setup ✔ Deliverability repair & spam fixes ✔ Domain reputation protection ✔ Outreach automation systems ✔ Campaign launch + optimization ✔ Email warmup & tracking ✔ DNS troubleshooting & correction I don’t just set up tools — I build long-term outreach systems. If you want a cold email system built properly from day one, I can help. ✅ 𝐖𝐡𝐚𝐭 𝐒𝐞𝐭𝐬 𝐌𝐞 𝐀𝐩𝐚𝐫𝐭: • Deep expertise in Instantly Email, Lemlist, SmartLead, and many others • Comprehensive understanding of email deliverability • Technical mastery of DNS configurations • Strategic approach to email warmup and campaign management ✅ 𝐂𝐨𝐫𝐞 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬: ✔ Complete Instantly Cold Email Infrastructure Setup and other Tools ( SmartLead, Lemlist, RichInbox) - Google Workspace, Microsoft 365, and Zoho mail configuration - Advanced DNS management (SPF, DMARC, DKIM) - Custom domain tracking implementation - Email warmup strategy development ✔ Technical Optimization - Deliverability troubleshooting - DNS record verification and correction - SMTP/IMAP configuration - Multi-tool integration setup ✅ 𝐕𝐚𝐥𝐮𝐞-𝐀𝐝𝐝𝐞𝐝 𝐁𝐞𝐧𝐞𝐟𝐢𝐭𝐬: • Complimentary Instantly.ai platform walkthrough • Access to proven email template resources • Ongoing technical support • Clear communication and quick turnaround I focus exclusively on technical implementation and infrastructure optimization - ensuring your email campaigns have the strongest possible foundation for success. ✅ Skills: Cold Email Marketing Strategy Cold Email Campaign Management Cold Marketing Automation Cold Email Outreach Cold Email Deliverability Optimization Cold Email Automation & Flows SPF, DKIM, DMARC Setup Lead Nurturing Sequences Cold Email Campaign A/B Testing Email List Management ✅ Tools I Use to Deliver Excellence:- - Email Deliverability: MX Toolbox, SendGrid, Mailgun, Postmark, SparkPost - Cold Email Outreach: Apollo, Lemlist, Instantly, Reply, Mailshake - LinkedIn Automation: Sales Navigator ✅ Email Marketing services: - Account setup & Optimisation - Email Copywriting and setup - Cold Email marketing campaigns - Cold Email Automation - Cold Email Flows setup - Analytics & Reporting ✅ Keywords: - Copywriting - Cold Email Marketing Automation - Relationship Management - Cold Email Management - Mass Email - Bulk Email - Cold Email - Lead Nurturing - Cold Email Deliverability - Cold Email Marketing - Cold Email Campaigns - Fractional Marketing - Landing Page Optimization - High-Level Solutions - DELIVERABILITY - Cold Email Automation - Omnichannel Automation - Cold Email Marketing Automation Strategy - Automated Workflow - Marketing Automation Software - Clickfunnel Optimization - Email Marketing - Email Marketing Specialist - Email Marketing Consultant - Email Marketing Expert - Online Marketing Expert - Bulk Email Design - Email Blast Design - Email Marketing Automation - Email Template Management - Long-tail keywords: - Responsive Email Template Development ✅ Cold Emailing Platforms: - Snov - Apollo - Woodpecker - Instantly - Lemlist - SmartLead - Hunter - Reply - Mailshake - Gmass - Vocus - Outreach #Instantly Expert #Lemlist #Woodpecker #Apollo #Lemlist #Smartlead #Clay #DNS #DMARC #DKIM #SPF #MX #Instantly #Warmbox #ClickMagick #GmailPostmaster #ColdEmailExpert #ColdEmailOutreachExpert #EmailDeliverability #ColdEmailOutreachExpert #ColdEmailCampaignSpecialist #ColdEmailCampaignManager #B2BColdEmailExpert #ColdEmailDeliverabilityExpert #ColdEmailCampaignSetupExpert #ColdEmailManagementExpert #SetupDKIM/SPF/DMARC&ConfigurationExpert #Instantly#CampaignManager #ColdEmailCampaignManager #ColdEmailSetupExpert #ColdEmailDomainsSetup #Warmups #InstantlyAccountSetupPro #SmartleadAccountSetupPro #ColdEmailDeliveryExpert #ColdEmailOutreachExpert

Seven-figure Shopify stores hit the same ceiling. The ads are working, and traffic is coming in, but visitor monetization is too low to make scaling profitable. More spending does not fix this. You are losing revenue on every session, and the gap between what your store earns and what it could earn grows every month. I added $3.6M in additional annual revenue for a single store through homepage redesign, conversion hierarchy optimization, and targeted split tests. I took a struggling supplement brand from near-zero to a 1,426% revenue increase. These results come from a systematic process built exclusively for eCommerce. WHAT MAKES THE PROCESS DIFFERENT Most CRO consultants start with your analytics. I start before that. Before any analysis begins, I run your store through a proprietary AI research system, currently running 20 specialized prompts across multiple AI platforms, including Gemini Deep Research and Perplexity, which maps your customer psychology, pre-purchase anxieties, quality uncertainties, competitive positioning, and pricing signals. The output is a detailed intelligence report that shows exactly how your store and offer are perceived in the market before we access your data. Every recommendation is then evaluated across five conversion dimensions: value proposition, relevance, clarity, motivation, and friction. Each insight is classified into one of four action types: implement immediately, investigate further, instrument for data, or test via A/B experiment, so nothing lands as vague advice. Every suggestion has a clear next step. This foundation means we work from a comprehensive, research-backed starting point from day one. Faster time to value. More accurate decisions. Better results. YOUR PATH DEPENDS ON WHERE YOU ARE NOW -The Launchpad is for stores with limited data and major on-site opportunities. A focused visual review targeting the highest-impact changes to build momentum fast. -The Compounder is for stores with traction that are ready to grow further. A comprehensive Profit Maximization Plan covering conversion rate, AOV, UX, messaging, and technical performance. Not a standard audit. A prioritized improvement roadmap focused on your bottom line. -The Innovation Lab is for mature stores with enough monthly conversions for statistically valid testing. A structured A/B testing program that follows a defined Planning, Building, and Learning cycle — from test backlog creation through development, QA, launch, and result analysis. All paths feed into the same ongoing growth loop: quarterly deep-dive optimization plans combined with a recurring execution sprint — preparing items for your review, prioritizing them, executing between meetings, measuring results, feeding the next iteration. WHAT YOU NO LONGER HAVE TO WORRY ABOUT Working with CRO Gurus means eliminating the operational overhead most merchants carry: Tools and overhead — No expensive per-seat software fees, AI subscriptions, or tech stack bloat. We bring the full tool ecosystem. Operations and systems — No endless process setup, workflow management, or project coordination to handle on your side. Hiring and talent — No HR hunt for developers, designers, or CRO specialists. No managing freelancers across multiple time zones. You focus on your products, your ads, and your scaling. We handle everything else. 🏆 RESULTS "Samuel and his team have done an incredible job. They have a clean, concise, in-depth understanding of conversion rate and exactly what to implement to make sure everything is optimized. Our conversion rate is already at a consistent 3%, up from 1.9% prior." — Oli Maitland, Simpletics "It's been about a year since I started working with CRO Gurus. There have been a lot of things we've done on the website that led the business to grow up to 6-7x in revenue. They will treat your business as their business." — Jason Chen, World Wine "To date, we have seen increases in engagement, revenue per visitor, AOV, and overall conversion rate. The most impressive aspect is their attention to detail and meticulous, methodical approach to execution." — Shaun Dolan, Genucel 🎖 ConversionXL Certified Ecommerce Growth Master 🏅 Official Shopify Partner — benchmark-rated by Shopify's internal expert team 🎖 Google Analytics Certified ✉️ MESSAGE ME ON UPWORK If your store has hit a ceiling on visitor monetization and you want to know exactly what is suppressing your revenue, message me. I typically respond within a few hours.

🏆 𝐓𝐎𝐏 𝐑𝐀𝐓𝐄𝐃 𝐏𝐋𝐔𝐒 𝐒𝐡𝐨𝐩𝐢𝐟𝐲 𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐞𝐝 𝐈𝐧𝐝𝐞𝐩𝐞𝐧𝐝𝐞𝐧𝐭 𝐟𝐫𝐞𝐞𝐥𝐚𝐧𝐜𝐞𝐫 📞 𝘾𝙖𝙡𝙡 𝙣𝙤𝙬 𝙛𝙤𝙧 𝙖 𝙛𝙧𝙚𝙚 𝟑𝟎-𝙢𝙞𝙣𝙪𝙩𝙚 𝙘𝙤𝙣𝙨𝙪𝙡𝙩𝙖𝙩𝙞𝙤𝙣 🗓️ 𝙄𝙣𝙫𝙞𝙩𝙚 𝙢𝙚 𝙩𝙤 𝙮𝙤𝙪𝙧 𝙟𝙤𝙗, 𝙖𝙣𝙙 𝙄 𝙬𝙞𝙡𝙡 𝙨𝙘𝙝𝙚𝙙𝙪𝙡𝙚 𝙖 𝙘𝙤𝙣𝙫𝙚𝙣𝙞𝙚𝙣𝙩 𝙩𝙞𝙢𝙚 𝙛𝙤𝙧 𝙮𝙤𝙪𝙧 𝙘𝙤𝙣𝙨𝙪𝙡𝙩𝙖𝙩𝙞𝙤𝙣 ➤ 10+ years of experience in Shopify, Shopify Plus, Shopify Store Development, Shopify Store Designer, Shopify Theme development, Shopify Apps Development, Shopify Custom apps development, Shopify Public apps development, Liquid Coding and Shopify Storefront API and External API Integration ➤ Worked with more than 190+ Shopify projects. ► Completed 6300+ hours on Upwork. ➤ Good Written and Verbal English Skills 📅 Feel free to hit "𝐈𝐍𝐕𝐈𝐓𝐄" Button. Available to Start Immediately. 𝐌𝐲 𝐖𝐨𝐫𝐤 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 𝐢𝐧𝐜𝐥𝐮𝐝𝐞𝐬: ➤ Shopify | Shopify 2.0 | Shopify Plus | Shopify Partner | Shopify stores Design | Shopify Store Development | Shopify Apps | Liquid Coding | Shopify Templates ➤ Shopify App development from Scratch using NodeJS, React, Laravel, Yii Framework ➤ Setup Shopify Store with responsive designs and optimized websites for performance and user experience. ➤ Implemented custom features and configured various Shopify Apps for enhanced functionality ➤ Shopify Apps (Oberlo, Dsers, Dropified, Importify, Spocket, Eprolo, etc.) ➤ Expertise with Shopify Page Builder Apps (Shogun, PageFly, GemPages, etc. ) ➤ Shopify Store Design Using Figma, XD, Sketch and Photoshop. ➤ Shopify Custom Theme Design and Development (Free/Paid) ➤ Implemented custom features and functionality using Shopify's API and custom coding. ➤ Shopify Store Setup and Shopify Store Design ➤ Shopify Product template customization ➤ Custom checkout integration in Shopify ➤ Bold, and Recharge subscriptions. ➤ Shopify Store Management ➤ Shopify Store ongoing maintainance I'm available full-time (up to 40 hours per week) and dedicated to your projects. Hire me Today! So let's start the long-term business relationships :) 𝗥𝗲𝗹𝗮𝘁𝗲𝗱 𝗦𝗲𝗮𝗿𝗰𝗵: Aanchal Shopify Developers | Aanchal Shopify Designer | Shopify Templates Specialists | E-commerce Consultants | Ecommerce Website Development | Ecommerce Management Services & Solutions Shopify expert on Upwork. Shopify Developer Upwork. Shopify Designer Upwork Shopify Store set up Upwork. Shopify website development Upwork. Shopify Theme customization Upwork. #Shopify#ShopifyStoreDesigner#ShopifyonlinestoreDesigner#ShopifyEcommerceDesigner#ShopifyDeveloper#ShopifyDesigner #Ecommerce #WebDesign #CSS #HTML #ShopifyPlus #SEO #Dropshipping #FrontEndDevelopment #ResponsiveDesign #WebDesign #UIUX #WebDev #Shopifyexpertupwork #ShopifyDesigner #Shopify #Topratedplusdeveloper # ShopifyE-commercePlatform #ShopifyOnlinestore #ShopifyWebsiteDesign #ShopifyExpert #ShopifySpecialist #ShopifyAppDeveloper #Ecommerce #Dropshipping #FrontEndDevelopment #LandingPage #Shopifyexpertupwork #ShopifyPlus #Ecommercedeveloper 𝙍𝙚𝙜𝙖𝙧𝙙𝙨, @Aanchal #Shopify#ShopifyDesigner#ShopifyExpert #Shopifydeveloper #TopratedplusshopifyDesigner less

Marketers Lie. Data Doesn't. I help businesses make confident marketing decisions through Google Analytics 4 (GA4), Google Tag Manager (GTM), Meta Pixel, conversion tracking, event tracking, ecommerce tracking, and B2B lead research with accurate prospect lists. I spent 9 years buying ads before moving into analytics and tracking. That matters. Most tracking specialists know how to install tags. Few have watched thousands of dollars disappear because conversion data was inaccurate. I have. That's why I build tracking systems that businesses can actually trust. Services I specialize in: ✅ Google Analytics 4 (GA4) setup & migration ✅ Google Tag Manager (GTM) implementation ✅ Google Ads conversion tracking ✅ Meta Pixel & Facebook Pixel implementation ✅ Event tracking & custom events ✅ Ecommerce tracking (Shopify & WooCommerce) ✅ dataLayer implementation ✅ Analytics reporting ✅ B2B Lead Research ✅ Prospect List Building What you get.. Every container, tag, trigger, and variable is fully documented. You'll also receive an asynchronous overview explaining exactly what I built and why.. so your next developer doesn't have to reverse-engineer my work. What clients say.. "S M Aqib Murshed is terrific for solving GA4 issues. I brought him a host of issues with GA4, Google Tag Manager, and Google Ads. He solved them all. A+++" Why work with me.. ✔ Google Analytics Certified (Google Skillshop) ✔ Top Rated on Upwork ✔ 100% Job Success Score Send me your site and what you want to track.. I'll tell you exactly how I'd set it up before you commit to anything.