Hi, I’m Sebastian Smith, a Senior Full Stack AI Engineer who builds high-performance web applications and integrates AI features to deliver real business impact. Over the past 11 years, I’ve honed skills across the MERN stack, Python, Flask, Docker, Kubernetes, and modern front-end frameworks to create scalable, secure, and maintainable software. I enjoy collaborating with cross-functional teams and mentoring junior developers while continuously optimizing system performance. I’ve applied AI to security and user experience, building LLM/RAG apps, chatbots, document Q&A, and copilots. I’m passionate about bridging data science and production systems to empower non-technical stakeholders with insights and reliable AI-powered capabilities.…

Sebastian Smith

Hi, I’m Sebastian Smith, a Senior Full Stack AI Engineer who builds high-performance web applications and integrates AI features to deliver real business impact. Over the past 11 years, I’ve honed skills across the MERN stack, Python, Flask, Docker, Kubernetes, and modern front-end frameworks to create scalable, secure, and maintainable software. I enjoy collaborating with cross-functional teams and mentoring junior developers while continuously optimizing system performance. I’ve applied AI to security and user experience, building LLM/RAG apps, chatbots, document Q&A, and copilots. I’m passionate about bridging data science and production systems to empower non-technical stakeholders with insights and reliable AI-powered capabilities.…

Available to hire

Hi, I’m Sebastian Smith, a Senior Full Stack AI Engineer who builds high-performance web applications and integrates AI features to deliver real business impact. Over the past 11 years, I’ve honed skills across the MERN stack, Python, Flask, Docker, Kubernetes, and modern front-end frameworks to create scalable, secure, and maintainable software. I enjoy collaborating with cross-functional teams and mentoring junior developers while continuously optimizing system performance.

I’ve applied AI to security and user experience, building LLM/RAG apps, chatbots, document Q&A, and copilots. I’m passionate about bridging data science and production systems to empower non-technical stakeholders with insights and reliable AI-powered capabilities.

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Skills

Experience Level

Python
Expert
JavaScript
Expert
Node.js
Expert
TypeScript
Expert
Docker
Expert
AWS
Expert
MongoDB
Expert
PostgreSQL
Expert
Express
Expert
Vue.js
Expert
DynamoDB
Intermediate
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Language

English
Fluent

Work Experience

Sr Full Stack AI Engineer at NextGen AI Systems
December 1, 2023 - February 1, 2025
Designed and shipped end-to-end AI products using Python, Node.js, React, Next.js, TypeScript, PostgreSQL, AWS, Docker. Collaborated with data science teams to integrate AI models into web platforms, enabling real-time insights and dynamic user interactions. Modernized legacy systems by migrating the frontend to React, improving performance, scalability, and maintainability. Architected secure APIs to facilitate communication between AI models and user-facing applications, ensuring reliable and scalable operations. Conducted in-depth code reviews and contributed to backend optimizations, improving data flow efficiency and performance for AI predictions. Built LLM/RAG apps (chatbots, document Q&A, internal copilots) with OpenAI, LangChain, vector DBs (Pinecone, Qdrant, Chroma), including authentication and dashboards for non-technical users.
Full Stack Engineer at Westbridge Digital Solutions
February 1, 2021 - August 1, 2023
Worked on API integrations with AWS AI/ML services, such as Amazon Rekognition and Amazon Polly, to embed AI functionalities like image analysis and text-to-speech recognition into web apps. Collaborated with UX/UI designers to implement responsive and accessible interfaces using React, ensuring high-quality user experiences. Refactored legacy .NET applications, migrating them to .NET Core for improved performance, scalability, and maintainability, leveraging AWS services like Lambda and DynamoDB.
Full Stack Web Developer at Borderline Software Studio
March 1, 2016 - October 1, 2019
Developed and deployed full-stack web applications utilizing Python, TypeScript, and Vue.js, ensuring robust performance and scalability. Integrated AI-driven code generation features, collaborating with AI teams to refine generated solutions for real-world applications. Evaluated and optimized API performance to improve the efficiency of AI feedback loops within the platform. Designed and implemented secure and efficient data pipelines to handle large datasets used in AI model training. Worked closely with product managers to prioritize features and improvements based on user feedback, ensuring product alignment with client needs.
Software Developer at Self-Employed
January 1, 2015 - February 1, 2016
Developed and optimized full-stack web applications using React.js and Node.js, ensuring scalable and efficient code for enterprise-level clients. Collaborated closely with UX/UI teams to implement responsive design principles, enhancing user experience across web and mobile platforms. Designed and integrated RESTful APIs, enabling seamless communication between frontend and backend services, improving system performance by 30%. Worked on cloud deployment solutions using AWS, setting up CI/CD pipelines to streamline development and deployment processes for continuous integration.

Education

Bachelor's Degree in Computer Science at The University of Texas at Austin
September 1, 2009 - April 1, 2014

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet