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Hi, I'm Stefan Marchand—a dynamic Senior AI & Full Stack Engineer focused on building AI-native, agentic, and user-facing systems. With 6+ years of experience, I design end-to-end architectures spanning frontend experiences with modern frameworks and scalable backend services, delivering multimodal interfaces powered by large language models. I enjoy turning ambiguous problems into tangible products through rapid prototyping, strong collaboration, and a disciplined focus on testing, observability, security, and maintainability. I deploy production-ready AI apps on AWS, Azure, and GCP, delivering reliable, scalable solutions that delight users and drive meaningful outcomes.…Hi, I'm Stefan Marchand—a dynamic Senior AI & Full Stack Engineer focused on building AI-native, agentic, and user-facing systems. With 6+ years of experience, I design end-to-end architectures spanning frontend experiences with modern frameworks and scalable backend services, delivering multimodal interfaces powered by large language models. I enjoy turning ambiguous problems into tangible products through rapid prototyping, strong collaboration, and a disciplined focus on testing, observability, security, and maintainability. I deploy production-ready AI apps on AWS, Azure, and GCP, delivering reliable, scalable solutions that delight users and drive meaningful outcomes.

Stefan Marchand

Full Stack Developer, Web Developer, AI Engineer, +2

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Hi, I'm Stefan Marchand—a dynamic Senior AI & Full Stack Engineer focused on building AI-native, agentic, and user-facing systems. With 6+ years of experience, I design end-to-end architectures spanning frontend experiences with modern frameworks and scalable backend services, delivering multimodal interfaces powered by large language models. I enjoy turning ambiguous problems into tangible products through rapid prototyping, strong collaboration, and a disciplined focus on testing, observability, security, and maintainability. I deploy production-ready AI apps on AWS, Azure, and GCP, delivering reliable, scalable solutions that delight users and drive meaningful outcomes.…Hi, I'm Stefan Marchand—a dynamic Senior AI & Full Stack Engineer focused on building AI-native, agentic, and user-facing systems. With 6+ years of experience, I design end-to-end architectures spanning frontend experiences with modern frameworks and scalable backend services, delivering multimodal interfaces powered by large language models. I enjoy turning ambiguous problems into tangible products through rapid prototyping, strong collaboration, and a disciplined focus on testing, observability, security, and maintainability. I deploy production-ready AI apps on AWS, Azure, and GCP, delivering reliable, scalable solutions that delight users and drive meaningful outcomes.

Available to hire

Hi, I’m Stefan Marchand—a dynamic Senior AI & Full Stack Engineer focused on building AI-native, agentic, and user-facing systems. With 6+ years of experience, I design end-to-end architectures spanning frontend experiences with modern frameworks and scalable backend services, delivering multimodal interfaces powered by large language models.

I enjoy turning ambiguous problems into tangible products through rapid prototyping, strong collaboration, and a disciplined focus on testing, observability, security, and maintainability. I deploy production-ready AI apps on AWS, Azure, and GCP, delivering reliable, scalable solutions that delight users and drive meaningful outcomes.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

English

Fluent

Work Experience

Remote AI & Full Stack Engineer at IBM

October 1, 2025 - October 1, 2025

Led design and development of full user-facing AI-agentic healthcare experiences using React, Next.js, and multimodal UI patterns. Built conversational interfaces integrating LangChain, Azure OpenAI, vector search, and agentic workflows to support real-time symptom triage and personalized care. Architected scalable FastAPI backend services, asynchronous event pipelines, and REST/GraphQL APIs to enable seamless interaction with core LLM and agent logic. Implemented RAG pipelines using Pinecone and optimized embeddings to improve retrieval precision and clinical recommendations. Drove end-to-end prototyping of experimental AI features in ambiguous discovery cycles and established practices for testing, observability, security, and maintainability. Containerized services with Docker and orchestrated workloads on cloud platforms (GCP/Azure). Designed PostgreSQL and MongoDB schemas with indexing and caching to reduce query latency by ~25%.

Remote AI & Full Stack Engineer at Octo

January 1, 2024 - January 1, 2024

Built a responsive e-commerce application for a banking transaction system using React.js and FastAPI. Designed serverless backend workflows with AWS Lambda, reducing infrastructure costs and improving API latency. Optimized frontend performance with lazy loading and code splitting. Leveraged prompt engineering with ChatGPT and other Large Language Models to accelerate development and client engagement. Built CI/CD pipelines using GitHub Actions to increase deployment frequency and reduce lead times.

AI & Software Engineer at Accenture Federal Services

January 1, 2023 - January 1, 2023

Enhanced search and recommendation features using metadata APIs and Python ML models (scikit-learn), increasing appointment bookings. Engineered backend APIs using FastAPI and PostgreSQL for secure, high-performance data exchange. Automated API testing and CI/CD pipelines via GitHub Actions, reducing release cycles while maintaining uptime. Developed React.js and TypeScript-based patient data management interfaces, improving load times and user satisfaction. Integrated NLP-powered chatbot using spaCy and NLTK to improve customer query resolution. Managed AWS cloud resources to optimize costs while maintaining performance. Developed RESTful APIs with Django and PostgreSQL for secure data exchange and improved response times.