Lead Engineer - Remote (London ,UK)
- Engineered the core full-stack architecture (React, Node.js, MongoDB) for a scalable B2B accounts receivable platform, building the central workflow automation system that processed 500+ daily automated email/SMS reminders and served UK-based SME clients.
- Built and integrated an MCP server with Claude to support automated workflows, enabling users to generate invoices, access financial data, and trigger backend actions through our chatbot interface.
- Designed and integrated third-party financial systems (QuickBooks Online, GoCardless), building a real-time sync service that automated ledger data flow and a direct debit solution that enabled agents to connect accounts and generate invoices seamlessly on-platform. Result: The GoCardless integration received official partnership approval and was listed in their public repository, enhancing platform credibility.
- Developed a robust internal REST API infrastructure using Node.js/Express, implementing structured error handling and authentication, which became the secure backbone for all frontend and third-party service communication.
- Automated our debt collection workflow, allowing agents to configure rules for automatic payment reminders, payment arrangements, and status tracking, directly reducing manual follow-up tasks by an estimated 70%.
- Improved code quality by writing and enforcing comprehensive unit tests (Jest), increasing test coverage from 30% to 75% and reducing post-deployment bug reports by 50%.