Hire the Best ERP Software Freelancers
in Bangladesh

Hi, I'm Opi, a Top-Rated Full Stack Developer with 6+ years of experience building scalable SaaS applications, production-ready MVPs, and custom software solutions for startups and growing businesses. As a SaaS MVP Developer, I help founders turn ideas into fast, scalable products that are ready for validation, investment, and long-term growth. As a Full Stack Developer, I build secure, maintainable applications from frontend to backend using modern technologies and best practices. Services * SaaS Application Development * SaaS MVP Development * Custom Software Development * Multi-Tenant SaaS Platforms * AI SaaS Applications * CRM, ERP & HRM Systems * Admin Dashboards & Customer Portals * REST API Development & Third-Party Integrations Tech Stack Frontend: React.js, Next.js, TypeScript, Tailwind CSS Backend: Node.js, Express.js, Laravel, PHP, Python Database & Cloud: PostgreSQL, MySQL, MongoDB, Supabase, AWS, Docker, DigitalOcean, GitHub Actions (CI/CD) Why Work With Me * Top-Rated Freelancer on Upwork * 100% Job Success Score * 50+ Custom Software Products Delivered * Scalable SaaS Architecture * Clean, Maintainable Code * Secure Authentication & Role-Based Access * Fast Communication & Reliable Delivery * 6 Months Free Maintenance After Delivery Whether you're looking for a SaaS Developer to build a new platform, a SaaS MVP Developer to launch your startup quickly, a Custom Software Developer to streamline your business processes, or a Full Stack Developer to take ownership of your product from planning to deployment, I'm ready to help. Let's build software that's reliable, scalable, and designed for long-term success.

"I would like to introduce myself as an ERP solution specialist, Accounting Freelancer. I'm a Sage300, ODOO, QuickBooks and Xero Advisor and have more than 16 years of professional experience in ERP solution implementation. My experiences range from day to day business solution and support , account reconciliations, fixed assets, general ledger, accounts payable, accounts receivable, bank reconciliation, budgets/forecasts as well as Financial Reports (P&L and Balance Sheet). I also have experience with Excel for data analysis, financial reporting for management, Financial dashboard and power quarry. My passion is to help my clients solve financial issues and deliver the best quality of work as they require. I can help you with: - Setting up your company in a new ERP SYSTEM with Sage300,Quickbook, Odoo, and Xero accounting software - Monthly bookkeeping requirements - Reconciliations (bank, credit card, merchant accounts, etc.) - Inventory tracking - Payroll run and payroll posting in Norming Payroll, QuickBooks and Xero - Accounts Receivable - Accounts Payable - Financial Reporting - Financial Analysis - SQL queries - Power BI I look forward to a long-term relationship with my clients. Hope to hear from you soon!

🏆 Top Rated Plus Freelancer | 100% Job Success | 200+ Projects Completed | 9,700+ Hours Worked | $200K+ Earned I am a Senior QA Engineer specializing in SaaS, FinTech, and AI-powered applications, helping startups and enterprises deliver stable, secure, and high-performance software products through structured manual and automation testing. I work as a QA Engineering specialist for SaaS startups, FinTech platforms, and AI product teams, ensuring applications are reliable, scalable, and ready for production at enterprise quality standards. My focus is on improving product quality, reducing production defects, and building efficient QA processes that support fast and safe software releases. 🟦 QA Engineering & Software Testing Services I provide end-to-end Software QA and Quality Assurance services, including: QA strategy, test planning, and test case design Manual Testing (functional, regression, exploratory) Cross-browser and cross-device testing Bug reporting, tracking, and test documentation Performance testing (Apache JMeter) API Testing (Postman, REST API validation) Security Audits (OWASP ZAP) Automation Testing (Cypress, Playwright, Appium, Espresso) CI/CD pipeline integration for automated testing End-to-end software quality assurance 🟦 SaaS Application Testing I specialize in testing complex SaaS platforms and web applications, including: Multi-tenant SaaS systems Subscription and billing workflows User roles and permission systems Dashboard and analytics platforms Third-party API integrations I help SaaS companies improve reliability, user experience, and release confidence while reducing production issues. 🟦 FinTech Application Testing I test financial and payment-based systems with a strong focus on accuracy, security, and reliability: Payment gateway testing Transaction and wallet systems Banking and financial dashboards Data integrity and validation testing End-to-end financial workflow testing I ensure every financial operation is secure, accurate, and production-ready. 🟦 AI SaaS & LLM Application Testing I also specialize in AI-powered SaaS and LLM-based applications, including: AI chatbots and conversational systems LLM-based workflows and applications Prompt-response validation and testing AI output accuracy and consistency checks Behavioral testing of AI systems under real-world usage I ensure AI systems behave reliably, safely, and predictably in production environments. 🟦 Tools & Technologies Automation: Selenium, Cypress, Playwright, Appium, Espresso API & Performance Testing: Postman, JMeter, REST APIs CI/CD: Jenkins, GitHub Actions Security Audits: OWASP ZAP Bug Tracking: Slack, Linear, Jira, Trello, Asana Test Management: TestRail, Confluence, Excel frameworks 🟦 Why Work With Me Strong expertise in SaaS, FinTech, and AI QA systems Skilled in both manual and automation testing Ability to build scalable QA frameworks from scratch Focus on real product stability and business outcomes Experience working with fast-paced startup environments If you are looking for a Senior QA Engineer for SaaS, FinTech, or AI applications, I can help you build a reliable QA process that improves product quality and reduces production risk.

I help businesses automate operations with AI-powered solutions, custom software, and intelligent workflows that improve productivity, reduce manual work, and streamline business processes. I specialize in: ✅ AI Agent Development ✅ AI Workflow Automation ✅ Custom Software Development ✅ ERP & CRM Solutions ✅ API Integrations & Webhooks ✅ WhatsApp Business API Automation ✅ SaaS Platforms & Admin Dashboards ✅ AI Chatbots & Customer Support Systems ✅ Business Process Automation ✅ Cloud-Based Applications **Technologies & Platforms** • OpenAI API • Claude AI • Google Gemini • Python • Node.js • React • PostgreSQL • Supabase • n8n • Make • Zapier • REST APIs • Webhooks • Twilio • WhatsApp Business API **What I can build for you** • AI Agents for business automation • AI-powered customer support systems • CRM & sales automation workflows • WhatsApp & email automation • Custom ERP & business management software • Inventory & logistics management systems • SaaS applications & internal business tools • API integrations & webhook automation • Custom dashboards & analytics platforms **Why clients choose me** ✔ Clean, scalable, and maintainable solutions ✔ Fast communication and reliable delivery ✔ Business-focused development approach ✔ Secure, production-ready applications ✔ Long-term technical support and maintenance If you're looking for an experienced developer to build AI-powered automation, custom software, or workflow solutions, I'd be happy to discuss your project and help turn your ideas into reality.

A Technical/Functional Odoo ERP Consultant at DOT BD Solutions Limited with 4 years of experience in software development (Django, PHP), SQA (Selenium), and cybersecurity. I specialize in ERP implementation, leveraging skills in IT operations and security to deliver integrated, impactful solutions.

I'm able to work any kind of python and PHP-related work like ERP Customization, ERP Implementation, Custom Web-based software development, Web Development. Also, I have more than 5 years of experience work in Frappe and ERPNext. I've Completed some projects. * ERPNext customize for Garments and Implement * Content Management System for UHSSP. * Website develop for SVCP and Zenith by PHP (Laravel) * And a lot of web-related projects. Also, I have good knowledge of work in Unix Server.