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I’m a passionate QA tester who loves breaking applications (only to make them stronger and better). I focus on exploring apps the way real users do, finding bugs, usability issues, and performance gaps before they reach production. With 7+ years of strong experience in Manual plus Auomaion testing and quality assurance for web and mobile applications. I focus on identifying real user issues, validating complex workflows, and ensuring applications are stable, user-friendly, and production-ready. I have worked with SaaS platforms, business applications, and customer-facing systems where accuracy, usability, and reliability directly impact business success. My strength lies in detailed exploratory testing and end-to-end workflow validation that helps uncover hidden defects before release. ------------------------------------------------------------------------------------------------ I Can Help You With ✅ Web Application Testing ✅ Mobile Application Testing ✅ SaaS Platform Testing ✅ Business Workflow Validation ✅ Dashboard & Admin Panel Testing Manual Testing Expertise ✅ Functional Testing ✅ Regression Testing ✅ Smoke & Sanity Testing ✅ Exploratory Testing ✅ UI/UX & Usability Testing ✅ Black Box & Grey Box Testing ✅ Integration & System Testing ✅ End-to-End Workflow Validation ✅ Compatibility & Cross-Browser Testing ✅ User Acceptance Testing (UAT) ✅ Backend & Database Validation ✅ Security & Negative Testing Automation & API Testing (Supporting Skill) ✅ Automation using Cypress, Playwright & Selenium ✅ API testing using Postman ✅ Automation support for regression and critical flows Core Strengths ✅ Strong attention to detail and defect identification ✅ Deep understanding of user behavior and workflow testing ✅ Clear and structured bug reporting with screenshots and recordings ✅ Strong experience working in Agile and Scrum environments ✅ Ability to quickly understand business requirements and convert them into test scenarios ------------------------------------------------------------------------------------------------ 🌟 Why Clients Choose Me ⭐ Detail-Oriented Testing Approach I focus heavily on real-world usage testing to ensure software works smoothly for end users. ⭐ Clear Communication & Reporting I provide detailed, easy-to-understand bug reports that help development teams resolve issues faster. ⭐ Reliable & Deadline Focused I consistently meet testing deadlines while maintaining high testing standards. ⭐ Flexible Across Industries Experienced in testing SaaS platforms, dashboards, and business workflow applications. 𝐈’𝐦 𝐧𝐨𝐭 𝐣𝐮𝐬𝐭 𝐚 𝐐𝐀 𝐭𝐞𝐬𝐭𝐞𝐫 — I’m a quality advocate, problem-solver, and product perfectionist who treats every application as if it were my own. My mission isn’t just to find bugs — it’s to build confidence in your product and deliver excellence in your brand. ------------------------------------------------------------------------------------------------ Ket experties: Manual Testing, Software Testing, Quality Assurance, QA Engineer, Functional Testing, Regression Testing, Exploratory Testing, Smoke Testing, Sanity Testing, UAT Testing, Web Application Testing, Mobile Application Testing, SaaS Testing, Cross Browser Testing Responsive Testing, UI Testing, UX Testing, Usability Testing, Compatibility Testing, Integration Testing, System Testing, End-to-End Testing, Database Testing; SQL Validation, Bug Reporting, Test Case Writing, Test Scenario Design, Agile QA, Scrum Testing, Backend Testing, Frontend Testing, Security Testing, Negative Testing, Black Box Testing, Grey Box Testing

I help businesses replace spreadsheets, Microsoft Access databases, and manual workflows with user friendly software systems, built around how they actually operate. Most of the companies I work with have reached a point where their existing processes are no longer scaling efficiently: -spreadsheets becoming difficult to manage -disconnected tools and duplicated data -too much manual work -lack of visibility into operations -systems that have simply outgrown their original purpose That’s where I come in. I specialize in building operational business systems such as: • CRM / ERP / MRP systems • Inventory and order management systems • Job tracking and workforce systems • Quoting and estimating tools • Dashboards and reporting platforms • Automated workflows and integrations • Microsoft Access to Web App conversions My approach is different from most custom development because I build using a proven, custom framework and architecture refined across dozens of real-world business applications. This allows me to deliver: ✔ Faster development ✔ Lower overall project cost ✔ Reliable and scalable systems ✔ Clean, maintainable code ✔ Consistent workflows and user experience With this approach, you’re not paying to reinvent the wheel - you’re benefiting from systems and patterns that have already been proven in production environments. Before transitioning into software development full-time, I spent 8 years working in engineering and manufacturing in Canada. That experience gives me a strong understanding of operational workflows, process design, and the real-world business challenges behind the software. Today, I have: 🏆 Nearly 100 successfully completed projects on Upwork 🏆 100% Job Success Score maintained for over 8 years 🏆 Extensive experience with complex operational systems and custom workflows I’m also a strong believer in transparency and long-term reliability. -Clear and honest communication throughout projects -Fixed-price projects whenever possible -Strong internal QA/testing process -Lifetime bug-fix guarantee on fixed-rate builds If your current systems are slowing your business down, feel free to reach out. I’m always happy to take a look and discuss possible solutions.

✔Microsoft Gold Solutions Partner | CSP Partner | 10+ Years Powering ERP & CRM Transformations, Microsoft Certified D365 & Power Platform Expert | Specializing in Business Central (SaaS/On-Prem), Cloud ERP (Finance & SCM), and Customer Engagement (CRM/Sales) | Business Transformation via Power Apps, Automate, & BI. Expertise in business application implementation, including ERP systems (Microsoft Dynamics 365 Business Central, Dynamics NAV), Power BI report development, and comprehensive support for all business applications and users. Comprehensive consultation and implementation services to optimize your business operations and data-driven decision-making. 𝐌𝐈𝐂𝐑𝐎𝐒𝐎𝐅𝐓 𝐃𝐘𝐍𝐀𝐌𝐈𝐂𝐒 𝟑𝟔𝟓 𝐀𝐍𝐃 𝐏𝐎𝐖𝐄𝐑 𝐏𝐋𝐀𝐓𝐅𝐎𝐑𝐌 𝐂𝐔𝐒𝐓𝐎𝐌𝐈𝐙𝐀𝐓𝐈𝐎𝐍 ✅Power Apps (Model Driven App, Power Apps Portals, Canvas App) ✅FetchXML Quarries ✅API Calls in Portals ✅Power Automates ✅Azure Functions ✅Azure Blob Storage ✅Power Apps Portals OOB customizations and development ✅Table permissions, Site settings, User Permission ✅Portal UI Customization ✅Development experience 6+ years ✅Asp.net C# MVC framework 5+ years ✅Microsoft Dynamics 365 CRM 5+ year ✅Microsoft Power Apps Portals 5+ year ✅Microsoft Automate 3+ year ✅Microsoft Power BI 5+ year ✅Business Central ERP 4+ year My Experience, I have done work and was involved in following things: ⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷ ✅Integrating Dynamics NAV/365 Business Central with Magento, Shopify webshop, CRM Online and POS. ✅Dynamics NAV Upgrades. ✅RDLC Reports transformation from Classic Client. ✅Forms transformations to Pages (For RTC client). ✅NAV and CRM Data Migration. ✅Various full Upgrades starting from 3.7 version ending with Dynamics 365 BC. ✅ Add-in's development. ✅Developing Apps for Dynamics 365 financials/business center ✅Implementation of Managed Solution for Dynamics 365 customer support. ✅Custom Module development for Microsoft RMS. ✅ Integrating CRM with Custom PHP based Webshop. ✅ Assisting Implementation. ✅ Bug Fixing ✅ .Net Based plugin development With Microsoft Dynamics 365 Customer Service & CRM, I have done work and was involved in following things: ⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷ ✅Solution Deployment and Development ✅ Writing Business Rules ✅ Upgrading CRM from 4.0 to 2015 ✅Developing and Customizing Surveys for Dynamics 365 ✅Create and Customizing Dashboards ✅Creating Forms and Views ✅ Data Migration ✅ Add-in's development ✅ Plugins Development using .NET ✅Integrating CRM with NAV How do we communicate and report? ⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷ We touch base with our valued clients on a daily, weekly & monthly basis. We follow agile methodology and use many types of project management tools communication. ⦿ Upwork Message Board & emails for regular updates ⦿ Azure DevOps for code repository ⦿ Asana / Trello / MS Projects - Project management tools as per the customer preference Let's hop on a quick Upwork call to explore your challenges, demo tailored solutions, and map a roadmap that delivers ROI from day one. Message me now- I'm here to make it happen!

Full-stack developer of complex business applications with a focus on data What I do best: ⚙️ Custom business automation where standard software doesn't work/is expensive. I know ways to drive your recurring costs toward zero 🧠 Product aggregation and matching 🔌 API integrations and development of APIs ⏱️ Long-term scraping projects built for maximum robustness and reliable data delivery 🗄️ High-quality scraping of bulk data (millions of products, terabytes of images) 🦾 Browser automation Projects I have completed and now maintain: 📧 A full-featured BYOK email automation platform packed with everything you need to run email marketing campaigns on your own — paying only for your SMTP server. 🏢 An internal platform for an advertising company to manage the distribution of product samples to ~1M people yearly. Features include a 1.2M contacts database, a built-in email platform, invoice generation for subcontractors, reports and dashboards to measure employees’ and subcontractors’ KPIs, project management, task management, and more. 💬 A version of email marketing software for communication with customers on an Airbnb-like platform. 🏠 Data aggregation and analytics software for two Airbnb-like platforms that helps hosts make better decisions by analyzing competitors’ prices, availability, and income trends. 🗂️ Product/real estate/jobs aggregator handling inventories of up to 10 websites, 100K+ products, with a 1-hour update cycle. Includes an API and integrations for WordPress and WooCommerce. How I work: You simply describe the problem you want to solve, and I help shape the idea of a product that will solve it effectively. Then, I quickly deliver to you the minimally viable product (MVP), and we can evaluate it live and improve it to perfection. I can do it because: - I have 10 years of experience as the head of an IT department in a small company, serving as an intermediary between completely non-technical people and a team of developers. - I have even more years of experience as a programmer and already built solutions for most common business challenges. - I'm a full-stack programmer with DevOps skills. I can build any web app for business from scratch, deploy it, and debug it until it works fine. I can work without any prototypes — if you have some, they’re also welcome. - I'm an AI enthusiast, making use of AI everywhere it can help. - Proven track record: 9 years on Upwork, 100% job success. Feedback: 💭 "Petr was fantastic to work with! He was thorough, made sure to understand the project requirements well and executed flawlessly" 💭 "The job was complicated, and Petr succesfully went back and forth in the initial deliverables, until we could get the product we needed" 💭 "He battled through to the end, not giving up, remaining responsive, and delivering excellent results. We paid a 1000% bonus and he earned every dollar of it" Many can write code. Few can make a product that works for you. Click "Invite to Job" and let's get things done. ===================== Key skills: Python, Playwright, Beautiful Soup, PHP, WordPress, Woocommerce, API, BYOK, DuckDB, Clickhouse, MySQL, Excel, Google Sheets, API, AI, OpenAI, ChatGPT, RESTful API, Web Development, Front-End Development, Back-End Development, API Development, Web API, Full-Stack Development, HTML5, CSS3, JS, JavaScript, Bootstrap, jQuery, Ajax, AWS, Linux, Ubuntu, Nginx, Apache, memcached, CRM, ERP, DMS, HTML, CSS, Dashboard development, Data visualisation, Project Management Software, Customer Relationship Management Software, Distribution Management Software, Web services, Pipedrive, n8n, XML, XSL, JSON, Shell Scripts, UI, UX, Stripe, Paypal, Google Maps, Google API, Google Charts

I build n8n automations, CRM integrations, AI workflows, and API-connected systems that help businesses reduce manual work, improve lead follow-up, and keep operations running reliably. I’m a Top Rated Upwork freelancer with 100% Job Success, $80K+ earned, and 130+ completed projects. My work combines automation, CRM systems, API integrations, and full-stack development, so I can connect your existing tools and also build custom dashboards, portals, backend systems, and web apps when no-code tools are not enough. Clients usually come to me when: → Leads are coming in but not being tracked, assigned, or followed up properly → Their CRM is messy, duplicated, slow, or difficult for the team to use → Their team is spending too much time on repetitive admin work → Forms, websites, calendars, email, SMS, payments, and CRM tools are disconnected → Existing Zapier, Make, or n8n workflows are breaking with real users and real data → They need AI workflows, API integrations, dashboards, portals, or full-stack systems built properly I can help with: → n8n automation workflows → CRM setup, cleanup, customization, pipeline automation, and lead management → CRM integrations with websites, forms, ads, calendars, email, SMS, payment tools, and reporting systems → AI automation and AI-powered business workflows using OpenAI, Claude, ChatGPT, and AI agents → Make scenarios, Zapier workflows, webhooks, REST APIs, and custom API integrations → Automated lead capture, routing, scoring, assignment, follow-up, reporting, invoicing, and document generation → Internal dashboards, admin panels, client portals, SaaS tools, and custom business applications → Full-stack development using React, Node.js, Python, Django, Flask, FastAPI, Express, MongoDB, PostgreSQL, MySQL, and REST APIs CRM platforms I work with include: HubSpot, GoHighLevel, Pipedrive, Salesforce, Zoho CRM, Monday, Airtable, ClickUp, Keap, Freshsales, ActiveCampaign, Mailchimp, Klaviyo, Insightly, Copper, and custom CRM systems. Automation and integration tools I use include: n8n, Make, Zapier, OpenAI, Claude, ChatGPT, Google Apps Script, Airtable, Notion, Google Sheets, Slack, Trello, Asana, ClickUp, APIs, webhooks, custom Python scripts, and Node.js backend logic. Before building, I map the full workflow: → Where the data starts → Where it needs to go → What should happen automatically → What should stay manual → What can fail → How errors should be logged, retried, or handled This helps avoid fragile automations, duplicate CRM records, broken handoffs, messy dashboards, and expensive rebuilds later. The goal is not just to connect apps together. The goal is to build a clean, reliable system that saves time, reduces errors, improves response speed, and gives your team a process they can actually use after delivery. Along with automation and CRM work, I also support the development side of your business. If your workflow needs a custom dashboard, admin panel, API, client portal, SaaS feature, payment flow, database, or full-stack web app, I can build that as part of the same system. Share your current tools, workflow, and the main problem you want fixed, and I’ll suggest the cleanest way to approach it.

Zoho Developer | Zoho CRM | Zoho Creator | Zoho One | API & Automation Expert I am a Zoho Developer with 7+ years of experience helping businesses streamline operations using the Zoho ecosystem. I have worked with 500+ clients globally (USA, UK, UAE, Australia, KSA, and more), delivering scalable CRM systems, custom applications, and automation solutions. I specialize in transforming manual business processes into efficient, automated workflows using Zoho tools. I work closely with clients to understand their requirements and provide practical solutions, technical guidance, and real-world examples tailored to their business needs. My goal is to deliver reliable, scalable, and efficient systems that support long-term business growth. What I Do 1. Zoho CRM setup, customization, modules, workflows & automation. 2. Zoho Creator custom app development (low-code solutions). 3. Zoho One full-suite implementation & business process design. 4. Deluge scripting for advanced automation & custom logic. 5. API integrations (REST APIs, Webhooks, third-party apps). 6. Zoho Books, Zoho Inventory & Finance suite integrations. 7. Data migration, system restructuring & performance optimization. 8. Business workflow automation & process consulting. Services I Provide 1. Zoho CRM setup & customization, including modules, workflows, automation, and integrations. 2. Odoo ERP implementation including setup, module configuration, customization, and workflow automation. 3. ERPNext development & configuration including system setup, module customization, and workflow automation, 4. Salesforce & HubSpot CRM solutions including setup, customization, automation, and integration. 5. Microsoft Dynamics 365 integration including system setup, API connections, data synchronization, and workflow automation. 6. Deluge scripting (Zoho automation) to build custom logic, automate workflows, and enhance Zoho CRM and Creator functionality based on business requirements. 9. Zapier & n8n automation to connect applications, build automated workflows, and streamline business processes without manual effort. 10. REST API development & integration to connect systems, enable secure data exchange, and automate workflows across web and business applications. 11. Webhooks setup to enable real-time data syncing, automate workflows, and connect applications for instant event-driven communication. 13. Third-party integrations (Stripe, Shopify, QuickBooks, etc.) to connect business applications, sync data, and automate workflows for seamless operations. 14. React.js frontend development to build modern, responsive, and high-performance user interfaces for web applications and dashboards. 15. .NET Core backend development to build secure, scalable, and high-performance server-side applications, APIs, and business logic systems. 16. PHP & JavaScript applications development to build dynamic, interactive, and scalable web solutions tailored to your business requirements. 17. Custom web applications development to build scalable, secure, and advanced solutions. 18. WordPress development to build responsive, SEO-friendly websites with custom themes, plugins, and tailored functionality for your business needs. 19. Shopify store setup & customization to create high-converting eCommerce stores with custom design, product setup, and optimized shopping experience. 20. Android & iOS apps development to build cross-platform mobile applications with modern UI, smooth performance, and scalable functionality. 21. Microsoft Azure solutions including cloud deployment, hosting, and scalable infrastructure setup for secure and high-performance applications. 22. CI/CD pipelines setup to automate code integration, testing, and deployment for faster, reliable, and efficient software delivery. 23. Cloud deployment & hosting to deploy, manage, and scale applications on secure cloud infrastructure for high availability and performance. 24. DevOps automation to streamline development, deployment, and operations processes using CI/CD, infrastructure automation, and cloud integration. LET'S START I don’t just build systems. I design complete, scalable solutions that improve efficiency, automate operations, and help your business grow. Need a new system from scratch, improvements in your existing setup, or complex integrations between different platforms, I can help you turn your requirements into a fully working, optimized solution. Feel free to reach out, I’ll analyze your needs and deliver a solution that is practical, scalable, and tailored specifically to your business goals.