Muhammad S

Team Lead | Full-Stack Developer | Perfex CRM Specialist

Aureus CRM • Freiberufler

Jul 2022 - Present • 3 yrs 10 mos

Aureus CRM for building services providers simplifies customer management, order planning, and communication. - Led a team to customize and enhance CRM modules for efficiency and customer management. - Implemented Google, Outlook, Stripe, USAePay, Payrexx, and Facebook API integrations. - Developed ZUGFeRD formatted invoices for compliance and automation. - Optimizing CRM workflows and improving customer loyalty.

Applied AI Engineer | Full-Stack Developer

Pointflow • Freiberufler

Jul 2022 - Aug 2025 • 3 yrs 1 mo

Worked on building production-grade AI assistants and automation systems powered by large language models. My focus was on developing LLM-based applications, AI agents, and intelligent workflows that automate research, communication, and complex operational tasks. Key Contributions • Built LLM-powered applications for content generation, automated research, email processing, request classification, and multimodal workflows (text, audio, and vision) • Developed AI agents and chatbots with memory-enabled conversations and tool/API integrations for executing multi-step tasks • Designed document-trained assistants using retrieval-based workflows for summarization, classification, and knowledge-driven automation • Implemented a secure Python sandbox environment allowing the AI assistant to safely execute code for complex data processing and task automation • Integrated AWS S3 for scalable file storage and document management within AI workflows and assistant interactions • Built an email-driven interaction layer using Mailgun, enabling users to communicate with AI agents directly through email-based workflows • Developed API-based integrations that allow AI agents to interact with external services and perform automated actions • Contributed to designing scalable backend systems supporting AI agents, automation pipelines, and LLM-powered task orchestration