
Saim Kay
Senior AI Developer and Automation Expert
Habilidades

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Porfolio
Experiencia laboral
Upwork
Freelance • 6 yrs 6 mos
AI ML Developer
Mar 2022 - Present • 4 yrs 4 mos
→ Built and shipped AI-driven full-stack products for clients across FinTech, EdTech, Health, and SaaS including RAG pipelines, LLM fine-tuning, voice agents, and multi-agent systems using LangChain, LlamaIndex, GPT-4o, and AWS Bedrock. → Developed production-ready AI chatbots and voice agents powered by Deepgram, ElevenLabs, Vapi, and Retell AI handling real customer conversations, appointment automation, and lead qualification at scale. → Designed and deployed RAG systems using Pinecone, FAISS, and Qdrant, with agent orchestration via CrewAI, AutoGen, and LangGraph backed by FastAPI, Django, Docker, and AWS SageMaker infrastructure. → Fine-tuned open-source LLMs including LLaMA 3 and Mistral 7B using LoRA, QLoRA, and PEFT for domain-specific use cases across healthcare, finance, and education verticals. → Shipped multiple live products - CharlieAI (sales automation), TrySetter (AI appointment setter), Bookkeepa (AI financial management), and Opto (digital health triage).
Software Engineer
Jan 2016 - Mar 2018 • 2 yrs 2 mos
→ Built and maintained web applications for client projects across multiple industries, working across the full stack Python/Django on the backend, JavaScript and React on the front. → Collaborated directly with designers and project managers to translate client requirements into working features, iterating quickly based on feedback. → Worked on REST API development, database design, and third-party integrations PostgreSQL and MongoDB for data, AWS for hosting and deployment. → Contributed to Agile sprint cycles, code reviews, and internal tooling that helped the team ship faster and with fewer production issues.