As someone with an impressive 18+ years of experience in the web and app development enterprise, I, Raman, am more than qualified to take up the challenge your CRM project proposes. What separates us from the crowd is not just our laundry list of skills including Software Architecture, PHP, WordPress, WooCommerce, Data Scrapping and Buddypress - it's our proven track record to deliver high-quality work within stipulated timeframes.
The review left by one of my many satisfied clients certifies that we can handle complex project requirements while ensuring our code seamlessly integrates with existing structures. This aligns perfectly with the topic at hand - your specific request for a modular and microservices based architecture for the CRM.
Moreover, while we may not have a direct Golang proficiency listed, masterful software architects like us adapt swiftly to diverse coding languages. Integrating modules and handling APIs are familiar territories for us in multiple systems. Building CRMs has been a foundational part of our work. From customer management to lead tracking and conversion to task management - each module you require is up our alley. Even your requested integrations with Google Apps, Microsoft LDAP, Office 365, a Chatbot app, and Zapier). So let us take charge of your SaaS CRM development today!