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Looking for a QA Engineer who can identify critical bugs before your users do? I help startups, SaaS companies, founders, and product teams improve software quality through Manual Testing, Web Testing, Mobile App Testing, API Testing, SaaS Testing, AI Testing, and End-to-End Quality Assurance. I specialize in finding production-impacting defects, broken workflows, usability issues, UI inconsistencies, edge cases, and functionality gaps before they affect your customers. I have tested web applications, mobile applications, SaaS platforms, AI-powered products, healthcare systems, CRM platforms, event management platforms, dashboards, customer portals, and business applications across multiple stages of development. Platforms I have worked on include Partyra, Bellefie.ai, LiveMy.app, Doodhwalay, DataDirect, SectorFlow, TeraCare, Ellum AI, Chronigma, Debrief, Civic Connect, City Spaces & Bookings, and Ripplee IO. ✅ Testing Expertise • Manual Testing • Functional Testing • Regression Testing • Exploratory Testing • Smoke Testing • Sanity Testing • End-to-End Testing (E2E) • User Acceptance Testing (UAT) • Beta Testing • Integration Testing • System Testing • Mobile App Testing • Android Testing • Web Testing • Website Testing • Web Application Testing • Responsive Testing • Cross-Browser Testing • Cross-Device Testing • Compatibility Testing • UI Testing • UX Testing • Usability Testing • User Flow Testing • Authentication Testing • SaaS Testing • Product Testing • API Testing • REST API Testing • Backend Testing • API Validation (Postman) • AI Testing • AI App Testing • AI Chatbot Testing • Conversational AI Testing • Chatbot Testing • LLM Testing • Prompt Testing • AI Model Evaluation • Release Testing • Production Validation 🔍 What I Test • Registration & Authentication Flows • User Onboarding • Subscription Workflows • Payment & Checkout Flows • Booking Systems • Admin Panels • CRM Platforms • SaaS Applications • AI Applications • AI Agents & Chatbots • Mobile Applications • Web Applications • Healthcare Platforms • Event Management Platforms • Customer Dashboards • Analytics & Reporting Systems • User Journeys & Critical Workflows 🏢 Industries I've Tested Products In • SaaS Platforms • AI & Chatbot Applications • Healthcare Platforms • Event Management Platforms • CRM Systems • Customer Experience Platforms • Property & Booking Platforms • E-commerce Platforms • FinTech Applications • Business Applications 📋 Deliverables • Detailed Bug Reports • Reproduction Steps • Expected vs Actual Results • Severity & Priority Classification • Screenshots & Screen Recordings • Defect Reporting & Bug Verification • QA Recommendations • Regression Verification Reports • Release Validation Reports • Production Readiness Assessments 🛠 Tools & Technologies Postman • Cypress • Appium • Selenium • Chrome DevTools • Jam.dev • Jira • ClickUp • Notion • GitHub 📱 Platforms & Environments • Android Applications • Web Applications • SaaS Platforms • Progressive Web Apps (PWA) • Chrome • Firefox • Edge • REST APIs • Responsive Web Applications ⭐ Why Clients Work With Me • Strong attention to detail • Real-user testing mindset • Thorough Manual QA process • Clear communication • Structured and actionable bug reports • Fast turnaround times • Reliable regression testing • Focus on product quality and user experience Whether you need Manual Testing, Mobile App Testing, Web Testing, API Testing, SaaS Testing, AI Testing, Beta Testing, Functional Testing, Regression Testing, User Acceptance Testing, End-to-End Testing, UI/UX Testing, or complete Quality Assurance support, I can help ensure your product is stable, reliable, and ready for release. Keywords: Keywords: QA Engineer, QA Engineering, QA Tester, QA Testing, Manual QA Tester, Manual QA, Software Tester, Software Testing, Quality Assurance, Software QA, Manual Testing, Functional Testing, Regression Testing, Exploratory Testing, Smoke Testing, Sanity Testing, User Acceptance Testing, UAT, Beta Testing, Beta Tester, End-to-End Testing, Integration Testing, System Testing, Mobile App Testing, Mobile QA, Mobile QA Testing, Android Testing, Android App Testing, Android Tester, Web Testing, Website Testing, Website QA, Website Tester, Web Application Testing, Web App Testing, Responsive Testing, Cross-Browser Testing, Browser Compatibility Testing, Usability Testing, User Testing, User Flow Testing, UI Testing, UX Testing, UI/UX Testing, API Testing, REST API Testing, Backend Testing, API Validation, Postman, SaaS Testing, AI Testing, AI App Testing, AI Chatbot Testing, Conversational AI Testing, LLM Testing, Prompt Testing, Bug Reports, Bug Reporting, Bug Tracking, Defect Tracking, Defect Reporting, Test Cases, Test Case Design, Test Case Writing, Test Execution, Test Planning, Automated Testing, Selenium, Selenium WebDriver, Performance Testing, Game Testing, App Testing, App Tester, Payment Testing, Shopify Testing, WordPress Testing, Production Validation.

Top 5% Talent on Upwork | Embedded Systems & PCB Design Engineer | Electrical Engineering | 100% Job Success | 5+ Years Are you looking for an experienced Embedded Systems, PCB Design & Electrical Engineering specialist who can transform your idea into a fully working smart device? You're in the right place. I specialize in Circuit Design, PCB Design, and Electronic Design handling the full path from schematic and multi-layer PCB layout, to firmware and Microcontroller Programming, to wireless integration, testing, debugging, and final prototype support. Whether it's a single board or a complete Internet of Things Solutions Design, I take it from concept to production-ready hardware. Whether you're building a: ✔ Smart Home Device ✔ Wearable Product ✔ Industrial Sensor Node ✔ BLE Tracker ✔ WiFi Enabled Controller ✔ Battery Powered Embedded System ✔ Custom Wireless PCB Product ◆ Core Expertise ▸ Embedded Systems & Electronics ✓ Microcontroller Programming: STM32, ESP32/ESP8266, nRF52 ✓ Ultra-Low Power Design: sub-µA standby, long-life battery systems ✓ PCB Design & Circuit Design: multi-layer, high-density, signal integrity optimized ✓ Electronic Design: schematic capture, BOM, design for manufacturing ✓ Embedded Firmware: UART, SPI, I2C, real-time systems ✓ Wireless: BLE, WiFi, LoRa, MQTT ✓ Motor Control: PID, stepper/servo systems ▸ System Development ✓ Hardware + Firmware integration ✓ Internet of Things Solutions Design (device to cloud) ✓ Debugging & production validation ✓ Power profiling & optimization ✓ OTA, bootloaders, custom protocols ◆ Tools & Technologies ▸ Firmware: C, C++, Python, FreeRTOS ▸ PCB Design: Altium Designer, KiCad ▸ Hardware: JTAG, Oscilloscope ▸ Communication: UART, SPI, I2C, RS485, Modbus ▸ IoT: BLE, WiFi, LoRa, MQTT ◆ Why Work With Me ✓ Electrical Engineering background with production focus ✓ Ultra-low power specialist (battery-operated systems) ✓ Full-stack embedded (hardware + firmware) ✓ Production-ready design focus ✓ Clear communication & reliable delivery ✓ Post-project support I can engineer it professionally, efficiently, and production-ready and connect your hardware seamlessly to mobile apps, gateways, or cloud platforms.

Zoho is genuinely powerful. It’s also genuinely easy to set up wrong. If your team abandoned it, your workflows broke, or your data never made sense that’s a fixable problem, not a reason to start over somewhere else. I know exactly how this happened. Someone set up Zoho based on how the software works not how your business works. Modules were created without understanding your sales process. Automations were built without mapping your actual workflow. Data was imported without being cleaned first. And when things broke, nobody knew why because nothing was documented. So your team went back to spreadsheets. Your Zoho subscription kept charging. And now you’re wondering whether it was ever worth it. It was. The system just needs to be rebuilt properly around you. What “properly” actually means: Before I configure a single module or write one line of Deluge, I spend time understanding: → How your team actually moves a lead through your pipeline → Where data enters your business and where it disappears → Which manual tasks are costing your team hours every week → What your team needs to see daily to make faster decisions → Why the previous setup failed and what not to repeat Only after that do I build. This is the difference between a Zoho system your team actually uses and one that collects dust. The situations I fix most often: 🔴 Zoho was set up but never properly adopted by the team 🔴 Workflows and automations stopped triggering without explanation 🔴 CRM data is messy, duplicated, or completely unreliable 🔴 Sales pipeline doesn’t reflect what’s actually happening 🔴 Zoho tools aren’t talking to each other or to external platforms 🔴 Previous freelancer or consultant left without documentation 🔴 Business grew and the original setup can no longer keep up What I build inside Zoho: CRM & Sales Operations Pipeline architecture, lead routing, deal automation, Blueprint enforcement, territory management, sales forecasting, and contact lifecycle management built around your actual sales process. Zoho One Full Ecosystem Complete implementation connecting CRM, Books, Desk, Projects, Analytics, Campaigns, Inventory, and HR into one synchronized, automated operation. Zoho Creator & Custom Applications Client portals, vendor portals, field service apps, approval workflows, inspection tools, and mobile-ready applications built with Deluge scripting. AI-Powered Automation Zia AI workflows, OpenAI and ChatGPT integration, intelligent lead scoring, AI follow-up sequences, and conversational agents embedded directly into your Zoho environment. Integrations & Data Migration HubSpot → Zoho, Salesforce → Zoho, clean data migrations, Shopify and WooCommerce sync, Stripe, QuickBooks, Xero, WhatsApp Business API, Twilio, and custom REST API connections. Reporting & Business Intelligence Executive dashboards, revenue reporting, KPI tracking, sales forecasting, and team performance visibility inside Zoho Analytics so decisions are based on real data, not gut feeling. Industries I’ve built systems for: Real Estate • Healthcare • Marketing Agencies • Professional Services • E-commerce • Recruitment & Staffing • Manufacturing • SaaS • Education • Consulting My commitment on every project: ✅ I document everything your team will never be dependent on me to keep things running ✅ I build for the people using the system daily, not just the person who hired me ✅ I communicate progress clearly so you always know exactly where things stand ✅ I don’t disappear after delivery I make sure it works in real conditions, not just in testing ✅ I measure success by whether your team actually uses what I built If your Zoho system is broken, abandoned, or never worked the way it was supposed to tell me exactly what happened. I’ll tell you honestly what went wrong, what it would take to fix it, and what a properly built system would look like for your business. No upselling. No guesswork. Just a clear path forward.

A results-driven QA Engineer helping SaaS startups, AI tools, and fintech platforms deliver bug-free, high-performing apps that users trust. If you’ve ever shipped a feature only to find bugs right after release, this is where my testing process steps in. Recently, a crypto trading firm reduced production issues by 38% after implementing my mix of manual and automated testing, resulting in faster releases and happier users. With over 3 years of QA experience, I test web, mobile, and API systems across real devices, browsers, and environments using tools like Playwright, Cypress, Selenium, and Postman. ⚙️ What I Can Help You With ✅ Manual Testing • Functional, UI/UX, Regression, Integration & UAT Testing • Real-device testing for Android & iOS • Pixel-perfect design validation (Figma + Chrome DevTools) • Detailed bug tracking and reporting (Jira, Trello, GitHub Issues) ✅ Automation Testing • Tools: Playwright, Cypress, Selenium, Appium • Frameworks: Pytest, TestNG, JUnit • CI/CD Integration: GitHub Actions, GitLab, Jenkins • Automating key flows: login, SSO, payments, and edge cases ✅ API & Performance Testing • Tools: Postman, Swagger, RestAssured, JMeter • API authentication, error handling, and edge case testing • Load and performance testing for high-traffic systems Why Clients Trust Me: ⭐ Tests with a user-first mindset, empathy + precision ⭐ Reports bugs clearly and visually — screenshots, Loom videos, logs, timestamps ⭐ Think like a developer — not just a tester ⭐ Adapts quickly to new stacks, tools, and workflows ⭐ Understands Agile, DevOps, and Sprint QA environments ✔️ Tools & Environments Playwright • Cypress • Selenium • Postman • TestRail • Jira • Trello • GitHub • BrowserStack • JMeter • BlazeMeter • Appium • Figma • DevTools • Agile/Scrum • Zephyr 📩 Let’s make your app stable, secure, and user-loved. Click Invite to Job or send a message — fast response, thorough testing guaranteed.

ʜᴇʟᴘɪɴɢ ʙᴜꜱɪɴᴇꜱꜱᴇꜱ ʟᴀᴜɴᴄʜ ᴄᴏᴍᴘʟɪᴀɴᴛ, ʀᴇʟɪᴀʙʟᴇ ꜱᴍꜱ ᴍᴇꜱꜱᴀɢɪɴɢ ꜱʏꜱᴛᴇᴍꜱ ᴜꜱɪɴɢ ᴛᴡɪʟɪᴏ, ᴀ2ᴘ 10ᴅʟᴄ, ᴀɴᴅ ᴡᴏʀᴋꜰʟᴏᴡ ᴀᴜᴛᴏᴍᴀᴛɪᴏɴ. If your SMS campaign has been rejected, your messages are being filtered, or you're struggling with Twilio compliance, I can help identify the issue and get your messaging system working correctly. I specialize in building compliant SMS infrastructures that improve message delivery, reduce carrier rejections, and integrate seamlessly with your business workflows. 𝐖𝐡𝐚𝐭 𝐈 𝐜𝐚𝐧 𝐡𝐞𝐥𝐩 𝐲𝐨𝐮 𝐰𝐢𝐭𝐡 • Twilio A2P 10DLC Brand & Campaign Registration • SMS Compliance & Carrier Requirement Review • Fixing A2P Campaign Rejections • SMS Deliverability Troubleshooting • Twilio Messaging Services Setup • Twilio API Integration • Two-Way SMS Configuration • GoHighLevel (GHL) SMS Integration • RingCentral, Grasshopper & Dialpad A2P Registration • n8n Workflow Automation • AI-Powered Messaging Automation 𝐌𝐲 𝐚𝐩𝐩𝐫𝐨𝐚𝐜𝐡 𝙀𝙫𝙚𝙧𝙮 𝙗𝙪𝙨𝙞𝙣𝙚𝙨𝙨 𝙞𝙨 𝙙𝙞𝙛𝙛𝙚𝙧𝙚𝙣𝙩, 𝙨𝙤 𝙄 𝙨𝙩𝙖𝙧𝙩 𝙗𝙮 𝙧𝙚𝙫𝙞𝙚𝙬𝙞𝙣𝙜 𝙮𝙤𝙪𝙧 𝙢𝙚𝙨𝙨𝙖𝙜𝙞𝙣𝙜 𝙨𝙚𝙩𝙪𝙥, 𝙧𝙚𝙜𝙞𝙨𝙩𝙧𝙖𝙩𝙞𝙤𝙣 𝙙𝙚𝙩𝙖𝙞𝙡𝙨, 𝙖𝙣𝙙 𝙬𝙤𝙧𝙠𝙛𝙡𝙤𝙬. 𝙄 𝙞𝙙𝙚𝙣𝙩𝙞𝙛𝙮 𝙘𝙤𝙢𝙥𝙡𝙞𝙖𝙣𝙘𝙚 𝙞𝙨𝙨𝙪𝙚𝙨, 𝙙𝙚𝙡𝙞𝙫𝙚𝙧𝙮 𝙥𝙧𝙤𝙗𝙡𝙚𝙢𝙨, 𝙤𝙧 𝙖𝙪𝙩𝙤𝙢𝙖𝙩𝙞𝙤𝙣 𝙗𝙤𝙩𝙩𝙡𝙚𝙣𝙚𝙘𝙠𝙨 𝙗𝙚𝙛𝙤𝙧𝙚 𝙞𝙢𝙥𝙡𝙚𝙢𝙚𝙣𝙩𝙞𝙣𝙜 𝙖 𝙨𝙤𝙡𝙪𝙩𝙞𝙤𝙣 𝙩𝙝𝙖𝙩'𝙨 𝙧𝙚𝙡𝙞𝙖𝙗𝙡𝙚, 𝙨𝙘𝙖𝙡𝙖𝙗𝙡𝙚, 𝙖𝙣𝙙 𝙖𝙡𝙞𝙜𝙣𝙚𝙙 𝙬𝙞𝙩𝙝 𝙘𝙖𝙧𝙧𝙞𝙚𝙧 𝙧𝙚𝙦𝙪𝙞𝙧𝙚𝙢𝙚𝙣𝙩𝙨. 𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐢𝐞𝐬 𝐈 𝐰𝐨𝐫𝐤 𝐰𝐢𝐭𝐡 • SaaS Companies • Marketing Agencies • Healthcare Practices • Real Estate Businesses • Mortgage Companies • Law Firms • Coaches & Consultants • Startups 𝐖𝐡𝐲 𝐜𝐥𝐢𝐞𝐧𝐭𝐬 𝐡𝐢𝐫𝐞 𝐦𝐞 ✔ Strong knowledge of Twilio A2P 10DLC requirements ✔ Experience resolving campaign rejections and compliance issues ✔ Workflow automation using n8n ✔ Clear communication and fast response times ✔ Focus on long-term, production-ready solutions instead of quick fixes 𝙄𝙛 𝙮𝙤𝙪 𝙣𝙚𝙚𝙙 𝙝𝙚𝙡𝙥 𝙬𝙞𝙩𝙝 𝙏𝙬𝙞𝙡𝙞𝙤 𝘼2𝙋 𝙧𝙚𝙜𝙞𝙨𝙩𝙧𝙖𝙩𝙞𝙤𝙣, 𝙎𝙈𝙎 𝙘𝙤𝙢𝙥𝙡𝙞𝙖𝙣𝙘𝙚, 𝙢𝙚𝙨𝙨𝙖𝙜𝙞𝙣𝙜 𝙖𝙪𝙩𝙤𝙢𝙖𝙩𝙞𝙤𝙣, 𝙤𝙧 𝙛𝙞𝙭𝙞𝙣𝙜 𝙙𝙚𝙡𝙞𝙫𝙚𝙧𝙮 𝙞𝙨𝙨𝙪𝙚𝙨, 𝙄'𝙙 𝙗𝙚 𝙝𝙖𝙥𝙥𝙮 𝙩𝙤 𝙧𝙚𝙫𝙞𝙚𝙬 𝙮𝙤𝙪𝙧 𝙨𝙚𝙩𝙪𝙥 𝙖𝙣𝙙 𝙧𝙚𝙘𝙤𝙢𝙢𝙚𝙣𝙙 𝙩𝙝𝙚 𝙗𝙚𝙨𝙩 𝙨𝙤𝙡𝙪𝙩𝙞𝙤𝙣. Let's build a messaging system that works reliably and stays compliant. Send me a message, I respond quickly. Comfort Aminu Twilio | Twilio A2P 10DLC | SMS Compliance | Messaging Automation | Twilio API | GoHighLevel | n8n | API Integration | RingCentral | Dialpad | Grasshopper | SMS Deliverability | Workflow Automation

⭐⭐⭐⭐⭐ "Elvis built us an AI Voice Agent that answers calls, qualifies leads, books appointments, and syncs everything directly into our CRM. The setup was smooth and immediately reduced workload for our team. Whether you need AI Receptionist, AI Voice Agent, AI Phone Agent, Conversational AI System, CRM Automation, or a complete AI-Powered Business Workflow. I help non-technical founders, agency owners, and operational businesses eliminate missed calls and automate scheduling with ultra-low-latency AI Voice Receptionists. If your business relies on phone communication but struggles with dropped leads, manual booking friction, or high overhead costs, I build custom human-like voice agents that answer 24/7, qualify leads, and write data directly to your CRM. Core Specializations & Architecture I specialize in the technical setup and deployment of production-grade conversational AI systems using a cutting-edge voice tech stack: Voice Orchestration: Retell AI & Vapi (Optimized for sub-500ms response latency) Telephony & Infrastructure: Twilio API integration, custom SIP trunking, and phone number provisioning. Backend & Automation: Advanced development for custom webhooks, complex multi-step workflows via Make and LLM orchestration. Conversational Logic: Smart Chatbot Development featuring advanced prompt engineering, dynamic memory retrieval, and guardrails to prevent hallucinations. Audio Quality & Realism: Pro-tier Audio Production, precise behavioral pacing, and custom voice character tuning to make interactions sound completely natural. Solutions Built for Conversion AI Voice Receptionist: Fully autonomous inbound call handling, intelligent customer routing, and live FAQ resolution. Booking Assistant: Dynamic, calendar-aware agents that cross-reference availability via API and schedule appointments directly into your system in real time. AI Voice Agent (Outbound): Instant speed-to-lead follow-ups, automated appointment reminders, and database reactivation campaigns. The "Build-and-Teach" Framework I don’t just drop code and disappear. Every system I deploy follows a strict delivery standard: Discovery & Prompt Mapping: Aligning the agent's voice acting and conversational style with your brand persona. Deep CRM Integration: Syncing call data, transcription analysis, and tags directly to your CRM (GoHighLevel, HubSpot, Airtable, etc.) System Documentation: You receive complete backend technical documentation and a personalized video walkthrough so your team can easily manage the system. Let’s turn your phone lines into an automated, revenue-generating asset. Please ignore, for SEO purposes AI Agent, AI Voice Agent, AI Phone Agent, AI Receptionist, Voice AI, Conversational AI, Agentic AI, Generative AI, LLM, Artificial Intelligence, AI Chatbot, AI Bot, Virtual Agent, Voice Bot, AI Automation, AI Engineer, Automation Specialist, Prompt Engineering, Conversational Design, Conversation Flows, System Prompt, Prompt Optimization, LLM Orchestration, Retrieval-Augmented Generation, RAG, Knowledge Base, Real-Time Voice AI, Low Latency, Human-Like AI, Natural Conversation, Turn-Taking ,Interruption Handling, Bilingual AI Agent, Scalable AI, Multi-Tenant SaaS, SaaS Development, Inbound Calls, Outbound Calls, Cold Calling, Cold Outreach, Outbound Sales, Telemarketing, Lead Generation, Lead Qualification, Appointment Setting, Appointment Booking, Customer Service, Customer Support, Call Routing, Warm Transfer, CRM Automation, CRM Integration, Pipeline Management, Workflow Automation, Business Process Automation, Review Automation, Customer Acquisition, Prospect List Building, Data Scraping, Data Mining, Market Intelligence, Lead Enrichment, Call Transcription, AI Generated Summaries, Compliance Verification, Voice Cloning, Voice Acting, Voice Over, Audio Production, Speech-to-Text, STT, Text-to-Speech, TTS, AI Voice Testing, Quality Assurance, Software Testing, Integration Testing, Deployment Automation, Latency Optimization, API Integration, REST API, Webhook Setup, Full Stack Development, Backend Development, Dashboard Development, Database Management, Technical Audit, Vapi, Vapi AI, Retell AI, Bland AI, ElevenLabs, Synthflow, OpenAI API, GPT-4, GPT-4o, ChatGPT, Claude API, Claude Sonnet, Claude Haiku, Anthropic API, Gemini Flash, Gemini Voices, Deepgram, Deepgram Nova-3, Whisper, LiveKit, Twilio, Twilio Voice, Twilio SIP, VoIP, SIP Trunk, SIP Integration, Asterisk, VICIdial, Dialpad AI Agents, n8n, Make, Zapier, Pabbly, Supabase, Supabase pgvector, PostgreSQL, Pinecone, Redis, Firebase, Firestore, Airtable, Google Sheets, Google Docs, Lead Qualification Automation, Appointment Reminder Automation, Customer Engagement, Client Support, Online Chat Support, Reporting Analytics, Workflow Architecture, Webhook Configuration, SaaS Automation, AI Calling, Call Center Automation, Phone Support, AI Customer Support, AI Lead Generation, AI Appointment Setter.