Justine Jay C.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

I help businesses replace manual processes with scalable, automated systems that save time, reduce operational costs, and support growth. I specialize in building custom business solutions using ERPNext/Frappe, Python, and modern API integrations. Whether you need a full ERP implementation, complex integrations between multiple platforms, AI-powered workflows, or ongoing technical leadership, I can take ownership of the project from architecture to deployment. Over the years, I've worked on ERP implementations, backend systems, business process automation, custom applications, cloud deployments, and third-party integrations for organizations with complex operational requirements. What I can help you build • ERPNext implementation and customization • Frappe Framework custom applications • Workflow automation and business process optimization • REST API development and third-party integrations • AI-powered business automation using modern LLMs • Backend architecture and scalable system design • PostgreSQL and MariaDB database design • Cloud deployment (Linux, Docker, Nginx) • Payment gateways and external system integrations • CRM, HR, Inventory, Accounting, Purchasing, and Operations modules • Technical consulting and solution architecture Technologies -ERPNext -Frappe Framework -Python -JavaScript -REST APIs -PostgreSQL -MariaDB -Docker -Linux -Nginx -Git -Supabase -AI/LLM Integrations -Automation Platforms Why clients work with me - I understand business processes—not just code. - I design solutions that are maintainable, scalable, and aligned with real operational needs. - I communicate clearly throughout the project and provide practical recommendations instead of simply implementing requests. - I can contribute as both a hands-on senior engineer and a technical leader, helping clients make sound architectural decisions. If you're looking for someone who can build reliable ERP systems, integrate multiple platforms, automate repetitive work, and leverage AI to improve business operations, I'd be happy to discuss your project.