Pankaj s.

I build SaaS products, custom CRM systems and AI-powered business applications that help businesses manage operations, connect their tools and reduce manual work. With 15+ years of software development experience, Top Rated status on Upwork and 150+ completed jobs, I work across product planning, development, integrations and deployment. My portfolio includes a construction project management CRM, a field inspection app with AI-assisted invoicing, construction ERP mobile software, AI-powered SaaS products and marketplaces. SAAS & CUSTOM SOFTWARE DEVELOPMENT I build new products and improve existing applications, including: • SaaS MVPs and production web applications • Multi-tenant platforms, user roles and company-level access • Customer portals, admin panels and business dashboards • Marketplaces, booking platforms and operational software • ERP and industry-specific business applications • Subscription billing, payment integrations and backend APIs • Database design, third-party integrations and application upgrades CRM DEVELOPMENT & AUTOMATION I configure existing CRM platforms and build custom CRM features around your sales process and business workflows. GoHighLevel / HighLevel • CRM setup, pipelines and lead management • Workflow automation, triggers and follow-up sequences • Lead capture, routing, forms, calendars and notifications • API and webhook integrations Zoho CRM • Custom modules, fields, layouts and business rules • Workflow automation, custom functions and reports • API integrations and data synchronization Custom CRM systems • Contact and deal management, sales pipelines and dashboards • Roles, permissions, reporting and data migration • CRM connections with websites and business applications • Automated lead handling and follow-ups I can also help with integrations involving other CRM and business platforms when they fit the project requirements. AI DEVELOPMENT & BUSINESS AUTOMATION I integrate AI into applications and workflows where it can support a clear business use case. • OpenAI and Claude API integrations • AI agents that use tools, APIs and connected business systems • AI chatbots for sales, support and internal teams • Document-based assistants and retrieval-augmented generation (RAG) • AI-powered data processing, analysis and workflow automation • AI features for SaaS products and business applications • API, webhook and third-party system integrations RELEVANT PROJECT EXPERIENCE My portfolio includes: • A CRM for construction project management • A field inspection app with AI-assisted invoicing and PDF generation • A construction ERP mobile app with process automation • AI-powered video interview and answer-analysis software • An AI logistics platform • SaaS products and marketplaces, including real estate and job application solutions TECHNOLOGIES React, Next.js, Node.js, Python, Laravel, PHP, PostgreSQL, MySQL, MongoDB, Supabase, Flutter, React Native, OpenAI API and Claude API. HOW I CAN HELP You can bring me in to plan and build a complete product, improve an existing application, customize your CRM or connect separate systems through APIs and automation. I can help define the technical approach and then support implementation through testing and deployment. Tell me what you want to build or improve, which tools you use today, and what needs to work better. I’ll help map out a practical approach based on your requirements.